JP6569232B2 - Synthetic floor slab structure - Google Patents

Description

The present invention relates to a case Naruyuka slab structure in which a plurality of nodes portions Ru are arranged at different positions in the plane direction.

  Conventionally, a structural member disclosed in Patent Document 1 has been proposed which aims to reinforce concrete by arranging truss-like reinforcing bars inside the concrete. Moreover, the adhesion member disclosed by patent document 2 aiming at joining a corrugated steel plate and a concrete floor slab by standing up a stud diver or a perforated gibel on a corrugated steel plate is proposed.

  In the structural member disclosed in Patent Document 1, a plurality of reinforcing bars are arranged in parallel on a substrate so that horizontal and vertical bars are formed in a lattice shape, and the horizontal and vertical bars formed in a lattice shape are formed. The upper and lower reinforcing bars are arranged in the concrete casting mold, and a plurality of lattice materials having convex bent portions in the substrate direction and the opposite direction are arranged so as to sew in a zigzag manner. is there.

  The adhesion member disclosed in Patent Document 2 has a grooved steel attached to the upper and lower ends of the corrugated steel sheet web so that the approximate center of the web part is positioned, and a stud gibel is erected on the web part of the grooved steel. By inserting the reinforcing bar into the through hole established in the flange of the grooved steel, the shearing force and bending moment acting on the concrete floor slab are transmitted to the grooved steel, stud gibber, through hole and reinforcing bar. .

  The flat deck plate disclosed in Patent Document 3 is composed of a flat portion and a plurality of reinforcing ribs formed so as to protrude in series from the flat portion, and the flat deck plate formed by spot welding the vertical overlapping portions of the reinforcing ribs. The deck plate composed of flat portions and reinforcing ribs is composed of a coated steel plate coated on one side, and the painted surface of the bottom surface on the opposite side of the flat portion and the vertical overlapping portion of the reinforcing ribs following this It is formed so as to be on the inner surface side.

JP 2014-91994 A JP 2004-36101 A Japanese Patent Laid-Open No. 9-4107

  However, the structural member disclosed in Patent Document 1 is configured by arranging a plurality of lattice materials so as to sew zigzag and joining bent portions of the respective lattice materials to each other. The manufacturing cost required for the joining operation of the portion increases, and it is difficult to maintain uniform quality at the joining portion of the bent portion of the lattice material.

  In addition, since the adhering member disclosed in Patent Document 2 has a plurality of independent stud gibels and perforated gibels that are discretely erected on the web portion of the channel steel, some of the stud gibels In other words, shear force and bending moment are intensively transmitted to the perforated gibber, making it difficult to achieve reliable adhesion between the concrete floor slab and the corrugated steel web.

  The flat deck plate disclosed in Patent Document 3 is intended to realize a floor structure of a building having both rigidity and aesthetics. However, when applied to a floor panel having a large span exceeding 5 m or more, It is necessary to improve rigidity by increasing the height. For this reason, the flat deck plate disclosed in Patent Document 3 increases the material cost for bending the reinforcing ribs, and is disposed above the floor slab by increasing the height of the reinforcing ribs. The reinforcing rib mainly bears compressive stress and cannot bear bending tensile stress, and there is a problem that the rigidity of the entire floor board becomes insufficient.

Therefore, the present invention has been devised in view of the above-mentioned problems, and the object of the present invention is to make it easy and reliable to reinforce a time-curable material such as concrete, and to provide a focus Naruyuka slab structure that can the be reliably adhere the steel member and the temporal curable material plate or the like.

The composite floor slab structure according to the first invention is a composite floor slab structure in which a deck plate and a time-curable material are combined, and a plurality of nodes are arranged at different positions in the out-of-plane direction, Reinforcing ribs having a substantially flat surface or the like extending in a straight line from one side of a flat plate formed in a substantially flat plate shape and extending in the out-of-plane direction are arranged in a direction perpendicular to the floor span. A deck plate arranged in parallel and a longitudinal main bar extending substantially linearly in the in-plane direction in the floor span direction, and the truss-like member is arranged on one side in the out-of-plane direction and the vertical main bar is joined A first node portion, a second node portion arranged on the other side in the out-of-plane direction and joined to the reinforcing rib, and inclined in an out-of-plane direction from the first node portion or the second node portion. A plurality of extending leg portions, the first node portion, The node portion and the plurality of leg portions are integrally formed by bending a single plate material in which a plurality of substantially rectangular holes are formed in an out-of-plane direction, and cured on one side of the flat plate. The first node portion, the second node portion, and the plurality of leg portions are embedded in the time-curable material together with the reinforcing ribs and the longitudinal main bars so as to be a structural member or an adhesion member of the time-curable material. It is used in a state in which it is used.

The composite floor slab structure according to a second aspect of the present invention is the composite floor slab structure according to the first aspect , wherein the deck plate is provided with a plurality of the reinforcing ribs arranged in the width direction on one side of the flat plate. Each of which has a hook formed with a groove that opens in any of the in-plane directions on the projecting surface that is projected in the out-of-plane direction. The groove of the hook is formed so as to be opposite to each other, and the second node portion is hooked and fitted into the groove of the hook.

According to the 1st invention and the 2nd invention, since the deck plate is used as a discarded form of a time-hardening material such as concrete, which is generally used in a building or the like, a special deck plate manufacturing facility is provided. It becomes unnecessary, and it becomes possible to reduce the capital investment cost.

According to the first invention and the second invention, the truss-like member, the reinforcing rib, the longitudinal main reinforcing bar and the like are embedded in a time-curable material such as concrete hardened on one side of the flat plate, so Alternatively, it is possible to provide an assembly bar arrangement that can increase the floor span.

According to the first and second inventions, steel materials are mainly used as truss-like members, reinforcing ribs, vertical main bars, etc., but fires can be caused by embedding reinforcing ribs in a time-hardening material. It becomes possible to improve the fire resistance of the floor slab when it occurs.

According to the first invention and the second invention, even when the floor span is increased, it is not necessary to increase the height of the reinforcing rib, and an increase in the material cost of the reinforcing rib is suppressed. It is possible to ensure sufficient overall rigidity by reinforcing the truss-like member with sufficient bending tensile stress on the reinforcing rib.

According to the first invention and the second invention, not only the truss-like member and the deck plate are integrated, but also the truss-like member is reinforced with a plurality of longitudinal main bars, so that the concrete placed on the one side of the flat plate , It is possible to sufficiently support the dead weight of the in-situ cast concrete in a state before the time-curable material is cured.

According to the second aspect of the present invention, since the truss-like member is deformed as a whole, each of the plurality of second node portions can be sequentially hooked in each of the forward hook groove and the reverse hook groove. It becomes possible to simply perform the operation of integrating the shaped member and the deck plate.

It is a perspective view which shows the state embedded in the time-hardening material of the truss-like member to which this invention is applied. It is a perspective view which shows the state by which the steel plate and the steel bar were attached to the truss-like member to which this invention is applied. It is a perspective view showing a 1st embodiment of a truss-like member to which the present invention is applied. (A) is a top view which shows 1st Embodiment of the truss-like member to which this invention is applied, (b) is the front view, (c) is the side view. (A) is a top view which shows the board | plate material before being stretched in 1st Embodiment of the truss-like member to which this invention is applied, (b) is a top view which shows the board | plate material after extending. It is a top view which shows the board | plate material before bending in the out-of-plane direction in 1st Embodiment of the truss-shaped member to which this invention is applied. It is a top view which shows the hole of the board | plate material in 1st Embodiment of the truss-shaped member to which this invention is applied. It is a perspective view which shows 2nd Embodiment of the truss-shaped member to which this invention is applied. (A) is a top view which shows 2nd Embodiment of the truss-like member to which this invention is applied, (b) is the front view, (c) is the side view. (A) is a top view which shows the board | plate material before being stretched in 2nd Embodiment of the truss-like member to which this invention is applied, (b) is a top view which shows the board | plate material after extending. It is a top view which shows the board | plate material before bending in the out-of-plane direction in 2nd Embodiment of the truss-shaped member to which this invention is applied. It is a top view which shows the hole of the board | plate material in 1st Embodiment of the truss-shaped member to which this invention is applied. It is sectional drawing which shows the state by which the truss-like member to which this invention was applied was embedded as a structural member in a time-hardenable material. It is sectional drawing which shows the state by which the truss-like member to which this invention was applied was joined to the steel plate or the folded plate. It is sectional drawing which shows the state by which the truss-like member to which this invention was applied was joined to H-section steel or C-section steel. It is sectional drawing which shows the state by which the truss-like member to which this invention was applied was joined to the outer peripheral surface or inner peripheral surface of a steel pipe. It is sectional drawing which shows the state by which the truss-like member to which this invention is applied is constructed by precast concrete and spot casting concrete. It is sectional drawing which shows the state by which the truss-like member to which this invention is applied is constructed by the ground and site placement concrete. It is sectional drawing which shows the state by which the steel rod or the steel pipe was joined to the truss-like member to which this invention is applied. It is an enlarged front view which shows the state by which the truss-like member to which this invention was applied was joined by welding or adhesion | attachment. It is an enlarged front view which shows the state by which the truss-like member to which this invention was applied was joined by screwing or bolting. It is an enlarged front view which shows the state by which the truss-like member to which this invention was applied was joined by fitting or tightening. It is an enlarged front view showing the state where the truss-like member to which the present invention is applied is joined to the bolts stud-welded by fastening or driving rods. It is an enlarged front view showing the state where the truss-like member to which the present invention is applied is joined at the first node portion or the second node portion arranged away from the steel member. (A) is a front view which shows the state which the truss-like member to which this invention is applied resists bending force, drawing-out force, and shear force integrally, (b) is the top view. It is a perspective view which shows the synthetic floor slab structure to which this invention is applied. It is sectional drawing of the floor span orthogonal direction which shows the synthetic floor slab structure to which this invention is applied. It is sectional drawing of the floor span direction which shows the synthetic floor slab structure to which this invention is applied. (A) is an expanded sectional view which shows the state which inclined the leg part of the truss-like member by the synthetic floor slab structure to which this invention is applied, (b) fitted all the 2nd node parts. It is an expanded sectional view showing a state.

  Hereinafter, the form for implementing truss-like member 1 to which the present invention is applied is explained in detail, referring to drawings.

  As shown in FIG. 1, a truss-like member 1 to which the present invention is applied is used by being embedded as a structural member or an adhering member in a time-curable material 5 such as concrete. The concrete structure 8 in which the shaped member 1 is disposed is provided.

  The truss-like member 1 to which the present invention is applied is provided to extend in the in-plane direction X inside the time-curable material 5 such as concrete and has a predetermined width dimension in the width direction X1 of the in-plane direction X. In addition, it has a predetermined depth dimension in the depth direction X2 of the in-plane direction X, and has a predetermined height dimension in the out-of-plane direction Y depending on the use as a structural member or an adhesion member.

  In the truss-like member 1 to which the present invention is applied, a plurality of substantially triangular basic elements E are formed by combining a plurality of node portions 2 and a plurality of leg portions 3, and a plurality of substantially triangular basic elements are formed. By constructing an assembly in which E is continuous, the plurality of node portions 2 are arranged at different positions in the out-of-plane direction Y, and the plurality of node portions 2 are connected by the plurality of leg portions 3. It will have a structural form.

  The truss-like member 1 to which the present invention is applied includes a plurality of first node portions 21 arranged on one side A in the out-of-plane direction Y and a plurality of second node portions arranged on the other side B in the out-of-plane direction Y. 22 and a plurality of leg portions 3 extending from the first node portion 21 or the second node portion 22 so as to be inclined in the out-of-plane direction Y. As shown in FIG. A steel rod 73 is attached.

  For example, when the truss-like member 1 to which the present invention is applied is used so that the in-plane direction X is substantially horizontal, the first node portion 21 on one side A in the out-of-plane direction Y is arranged on the upper side. The second node 22 on the other side B in the out-of-plane direction Y is disposed on the lower side. Further, when the truss-like member 1 to which the present invention is applied is used so that the in-plane direction X is substantially vertical, for example, the first node portion 21 on one side A in the out-of-plane direction Y is arranged on the left side. Thus, the second node portion 22 on the other side B in the out-of-plane direction Y is disposed on the right side portion.

  As shown in FIG. 3, the truss-like member 1 to which the present invention is applied has four leg portions from one of the first node portion 21 and the second node portion 22 toward the other as shown in FIG. 3 is provided so as to extend from each of the first node portion 21 or the second node portion 22 while being inclined in the out-of-plane direction Y.

  As shown in FIG. 4A, each of the first node portions 21 is surrounded by four second node portions 22 in the in-plane direction X, and the four second node portions surrounding the four directions. Each of the four leg portions 3 is provided so as to extend radially from the respective first node portions 21 toward each of the 22 portions.

  As shown in FIGS. 4B and 4C, each first node portion 21 is formed to have a substantially flat upper end surface 21a. Each first node portion 21 is not limited to this, and may be formed to have a curved upper end surface 21a.

  As shown in FIG. 4A, each of the second node portions 22 is surrounded by four first node portions 21 in the in-plane direction X, and the four first node portions surrounding the four directions. Each of the four leg portions 3 is provided so as to extend radially from the second node portion 22 toward each of the first node portions 21.

  As shown in FIGS. 4B and 4C, each of the second node portions 22 is formed to have a substantially flat lower end surface 22a. Each 2nd node 22 is not restricted to this, You may form so that it may have the curved lower end surface 22a.

  Each leg portion 3 is provided to be inclined from the first node portion 21 and the second node portion 22 so as to have a predetermined angle θ with respect to the out-of-plane direction Y. Each leg portion 3 is provided so as to extend substantially linearly, but is not limited thereto, and a partially bent portion or a curved portion may be formed. The angle θ is set to be, for example, about 45 ° in the range of about 15 ° to 75 °, for example.

  As shown in FIGS. 5 to 7, the truss-like member 1 to which the present invention is applied is obtained by performing predetermined processing on one plate 6 made of steel, aluminum, carbon fiber, synthetic resin, or the like. Manufactured. In the truss-like member 1 to which the present invention is applied, an expanded metal 60 made of steel is mainly used as the plate material 6 with a plate thickness of about 1 mm to 10 mm.

  In the expanded metal 60, first, as shown in FIG. 5A, a plurality of cuts 60a are formed in a substantially staggered pattern on the plate material 6 formed in a substantially flat plate shape, and then in FIG. 5B. As shown, the plate material 6 in which a plurality of cuts 60a are formed in a substantially zigzag shape is stretched in the in-plane direction X.

  As shown in FIG. 5A, the expanded metal 60 is formed in a substantially linear shape so that each cut 60a penetrates the plate material 6 and has a predetermined length in the in-plane direction X. By extending the slits 60a in the in-plane direction X, as shown in FIG. 5 (b), a substantially rectangular hole 4 is formed at each of the slits 60a.

  As shown in FIG. 6, the plate material 6 is formed with a plurality of substantially rectangular hole portions 4, and a plurality of hole portions 4 having different positions in the depth direction X <b> 2 are alternately adjacent in the width direction X <b> 1. By arrange | positioning so that it may fit, the several hole part 4 is arrange | positioned by the in-plane direction X in substantially zigzag form. When the expanded metal 60 is used, the plate 6 is formed with a substantially rectangular hole 4 at each cut 60a, and the plurality of holes 4 are arranged in a staggered manner in the in-plane direction X. It will be a thing.

  As shown in FIG. 7, each hole 4 has four corner portions 40 and four side portions 41, and each side portion inclined in the width direction X <b> 1 and the depth direction X <b> 2. In the portion 41, the corner portions 40 adjacent to each other in the width direction X1 and the depth direction X2 are connected to form a substantially rectangular shape. Each hole 4 has a diagonal line D1 extending in the width direction X1 and connecting the pair of corner points 40, and a diagonal line D2 extending in the depth direction X2 and connecting the pair of corner points 40.

  In the first embodiment, the truss-like member 1 to which the present invention is applied is substantially obtained by bending the plate material 6 such as the expanded metal 60 along the diagonal line D2 extending in the depth direction X2 or the diagonal line D1 extending in the width direction X1. Formed in a truss shape. The truss-like member 1 to which the present invention is applied is folded into a mountain fold line M as shown in FIG. 6 by folding the plate 6 into a mountain fold or a valley fold along a diagonal line D2 extending in the depth direction X2. Further, it is integrally formed by being alternately folded into a valley fold at the valley fold line V and alternately into a mountain fold and a valley fold in the out-of-plane direction Y. When the truss-like member 1 to which the present invention is applied bends the plate material 6 along the diagonal line D2, the mountain fold line M or the valley fold line V continues at the diagonal line D2 of the plurality of holes 4 adjacent in the depth direction X2. When the plate member 6 is bent along the diagonal line D1, it is bent so that the mountain fold line M or the valley fold line V is continuous at the diagonal line D1 of the plurality of holes 4 adjacent in the width direction X1.

  At this time, as shown in FIG. 4, the first node portion 21, the second node portion 22, and the plurality of leg portions 3, among the four corner portions 40 surrounding each substantially rectangular hole portion 4, Four side edges that are integrally formed by bending the plate 6 in the out-of-plane direction Y at a pair of corner portions 40 arranged on a predetermined diagonal line and surround each substantially rectangular hole 4. The four leg portions 3 are formed from the portion 41 so that the four leg portions 3 are provided so as to be inclined and extend in the out-of-plane direction Y from each of the first node portion 21 or the second node portion 22. It becomes.

  Next, a second embodiment of the truss-like member 1 to which the present invention is applied will be described. In addition, about the component same as the component mentioned above, the description below is abbreviate | omitted by attaching | subjecting the same code | symbol.

  As shown in FIG. 8, the truss-like member 1 to which the present invention is applied has two leg portions from one of the first node portion 21 and the second node portion 22 toward the other as shown in FIG. 8. 3 is provided so as to extend from each of the first node portion 21 or the second node portion 22 while being inclined in the out-of-plane direction Y.

  As shown in FIG. 9A, each first node portion 21 has two second node portions 22 arranged on both sides in the width direction X1 and two second node portions 22 arranged on both sides. Each of the two leg portions 3 is provided so as to extend in opposite directions to each of the node portions 22 so as to be continuous from each of the first node portions 21.

  Each first node portion 21 is formed to have a substantially flat upper end surface 21a as shown in FIGS. 9B and 9C. Each first node portion 21 is not limited to this, and may be formed to have a curved upper end surface 21a.

  As shown in FIG. 9A, each of the second node portions 22 has two first node portions 21 arranged on both sides in the width direction X1 and two first node portions 21 arranged on both sides. Each of the two leg portions 3 is provided to extend in the opposite direction to each of the node portions 21 so as to be continuous from each of the second node portions 22.

  Each second node 22 is formed to have a substantially flat lower end surface 22a as shown in FIGS. 9B and 9C. Each 2nd node 22 is not restricted to this, You may form so that it may have the curved lower end surface 22a.

  Each leg portion 3 is provided to be inclined from the first node portion 21 and the second node portion 22 so as to have a predetermined angle θ with respect to the out-of-plane direction Y. Each leg portion 3 is provided so as to extend substantially linearly, but is not limited thereto, and a partially bent portion or a curved portion may be formed. The angle θ is set to be, for example, about 45 ° in the range of about 15 ° to 75 °, for example.

  Also in the second embodiment, the truss-like member 1 to which the present invention is applied has a predetermined plate member 6 made of steel, aluminum, carbon fiber, synthetic resin or the like as shown in FIGS. The expanded metal 60 made of steel is mainly used as the plate 6.

  In the expanded metal 60, first, as shown in FIG. 10A, a plurality of cuts 60a are formed in a substantially staggered pattern on the plate material 6 formed in a substantially flat plate shape, and then in FIG. 10B. As shown, the plate material 6 in which a plurality of cuts 60a are formed in a substantially zigzag shape is stretched in the in-plane direction X.

  As shown in FIG. 10A, the expanded metal 60 is formed in a substantially linear shape so that each cut 60a penetrates the plate material 6 and has a predetermined length in the in-plane direction X. By extending the cuts 60a in the in-plane direction X, a substantially rectangular hole 4 is formed at each cut 60a as shown in FIG. 10B.

  As shown in FIG. 11, the plate material 6 is formed with a plurality of substantially rectangular holes 4, and a plurality of holes 4 whose positions in the depth direction X <b> 2 are substantially the same are adjacent to each other in the width direction X <b> 1. By arrange | positioning in this way, the some hole part 4 is arrange | positioned by the in-plane direction X at substantially grid | lattice form. When the expanded metal 60 is used, the plate 6 is formed with a substantially rectangular hole 4 at each cut 60a, and the plurality of holes 4 are arranged in a substantially lattice shape in the in-plane direction X. It will be a thing.

  As shown in FIG. 12, each hole 4 has a pair of side portions 41 having four corner portions 40 and four side portions 41 and arranged substantially parallel to each other. The corner points 40 adjacent to each other in the depth direction X2 are connected to each other, and the corner points 40 adjacent to each other in the width direction X1 are connected to form a substantially rectangular shape. Each hole 4 connects a pair of side portions 41 extending in the depth direction X2 by connecting the corner points 40 adjacent in the depth direction X2, and a width direction by connecting the corner points 40 adjacent in the width direction X1. It has a pair of side part 41 extended to X1.

  In the second embodiment, the truss-like member 1 to which the present invention is applied includes the plate material 6 such as the expanded metal 60 along the side part 41 extending in the depth direction X2 or the side part 41 extending in the width direction X1. It is formed in a substantially truss shape by bending. The truss-like member 1 to which the present invention is applied is formed by folding the plate member 6 into a mountain fold or a valley fold along the side portion 41 extending in the depth direction X2, and as shown in FIG. In addition, it is integrally formed by alternately folding into a valley fold at the valley fold line V and alternately into a mountain fold and a valley fold in the out-of-plane direction Y. The truss-like member 1 to which the present invention is applied is continuous by extending in the depth direction X2 of the plurality of holes 4 adjacent to the depth direction X2 when the plate member 6 is bent along the side portion 41 extending in the depth direction X2. When the side fold 41 is bent so that the mountain fold line M or the valley fold line V is continuous, and the plate 6 is bent along the side flank 41 extending in the width direction X1, a plurality of adjacent ones in the width direction X1. The side fold 41 extending in the width direction X1 of the hole 4 is bent so that the mountain fold line M or the valley fold line V is continuous.

  As shown in FIG. 9, the truss-like member 1 to which the present invention is applied has two side portions 41 extending in the depth direction X <b> 2 from each first node portion 21 without being inclined in the out-of-plane direction Y. The first nodal portions 21 adjacent in the depth direction X2 or the respective second nodal portions 22 to the second nodal portions 22 adjacent in the depth direction X2 are provided so as to extend in a substantially ridgeline shape. The truss-like member 1 to which the present invention is applied has two side portions 41 extending in the width direction X1 from the first node portions 21 to the second node portions 22 adjacent in the width direction X1, or Each of the second node portions 22 is provided so as to be inclined in the out-of-plane direction Y from the first node portion 21 adjacent in the width direction X1.

  At this time, the first node portion 21, the second node portion 22, and the plurality of leg portions 3 are arranged substantially parallel to each other among the four side portions 41 surrounding each of the substantially rectangular holes 4. One or both of the pair of side edges 41 are integrally formed by bending the plate 6 in the out-of-plane direction Y, and two of the four side edges 41 are separated from the two side edges 41. By configuring the leg portion 3, the two leg portions 3 are provided so as to be inclined and extend in the out-of-plane direction Y from the first node portion 21 or the second node portion 22, respectively.

  As shown in FIGS. 13 to 19, the truss-like member 1 to which the present invention is applied is a structural member or an adhering member of the cured time-curable material 5 in any of the first embodiment and the second embodiment. As such, the first node portion 21, the second node portion 22, and a part or all of the plurality of leg portions 3 are used in a state of being embedded in a time-curable material 5 such as concrete or mortar.

  The truss-like member 1 to which the present invention is applied is shown in FIG. 13A when all of the first node portion 21, the second node portion 22, and the plurality of leg portions 3 are embedded in a time-curable material 5 such as concrete. ), The cured time-curable material 5 may be provided from the upper side to the lower side in the out-of-plane direction Y. As shown in FIG. 13B, the cured time-curable material is cured. 5 may be provided only on one or both of the lower side and the upper side of the out-of-plane direction Y. At this time, the truss-like member 1 to which the present invention is applied has a height dimension h of about 10.0 cm to 20.0 cm in the out-of-plane direction Y, and the inside of the cured time-curable material 5 is concrete. It is provided as a structural member that reinforces the time-curable material 5 such as.

  As shown in FIGS. 14 to 16, the truss-like member 1 to which the present invention is applied has a steel plate 70, a folded plate 71, and a structural steel 72 at one or both of the first node portion 21 and the second node portion 22. The steel member 7 using the steel rod 73 or the steel pipe 74 may be joined by welding, bonding, screwing, bolting, fitting, tightening, fastening to a stud-welded bolt, or a driving rod. At this time, the truss-like member 1 to which the present invention is applied has a height dimension h of about 3.0 cm to 8.0 cm in the out-of-plane direction Y, and mainly the inside of the cured time-curable material 5. Thus, it is provided as an adhesion member for adhering the time-curable material 5 such as concrete and the steel member 7.

  As shown in FIG. 14A, the truss-like member 1 to which the present invention is applied has a plurality of first node portions 21 on the upper surface 7a or the lower surface 7b of the steel plate 70 formed in a substantially flat plate shape in the in-plane direction X. Or the 2nd node part 22 is made to contact | abut, and one part or all part is joined by welding etc. among the some 1st node part 21 or the 2nd node part 22 contact | abutted to the steel plate 70. FIG. Further, as shown in FIG. 14B, the truss-like member 1 to which the present invention is applied is formed on the upper surface 7a or the lower surface 7b of the folded plate 71 such as a deck plate or a corrugated surface formed in an uneven shape in the out-of-plane direction Y. The plurality of first node parts 21 or the second node parts 22 are brought into contact with each other, and some or all of the plurality of first node parts 21 or the second node parts 22 brought into contact with the folded plate 71 are welded. Etc. may be joined together. The truss-like member 1 to which the present invention is applied is continuous with the upper surface 7a or the lower surface 7b of the steel plate 70 or the folded plate 71 with which the first node portion 21 or the second node portion 22 is in contact, and is hardened over time such as concrete. Material 5 is provided.

  As shown in FIG. 15, the truss-like member 1 to which the present invention is applied applies a plurality of first node portions 21 or second node portions 22 to a section steel 72 such as an H-section steel, a C-section steel, or a steel sheet pile. A part or all of the plurality of first node portions 21 or the second node portions 22 that are in contact with each other and are in contact with the shape steel 72 may be joined by welding or the like. As shown in FIG. 15 (a), the truss-like member 1 to which the present invention is applied has a first H-shaped steel flange portion 7c and a web portion 7d formed in a substantially H-shaped cross section. The time curable material 5 such as concrete is provided so as to join the node portion 21 or the second node portion 22 and surround the entire H-section steel. In addition, as shown in FIG. 15B, the truss-like member 1 to which the present invention is applied has a first node portion 21 or a second node portion on a C-section steel web portion 7d having a substantially C-shaped cross section. 22 is joined, and a time-hardening material 5 such as concrete is provided so as to surround the truss-like member 1 at a groove portion 7e formed by a flange portion 7c and a web portion 7d of C-shaped steel.

  As shown in FIG. 16, the truss-like member 1 to which the present invention is applied has the truss-like member 1 in the circumferential direction W along the outer peripheral surface 7 f or the inner peripheral surface 7 g of the steel pipe 74 having a substantially circular cross section. The plurality of first node portions 21 or the plurality of first node portions 21 or the plurality of first node portions 21 or the second outer periphery portion 22 of the steel pipe 74 that are bent and brought into contact with the outer peripheral surface 7f or the inner peripheral surface 7g of the steel pipe 74 Part or all of the second node portion 22 is joined by welding or the like. The truss-like member 1 to which the present invention is applied has a steel pipe 74 as shown in FIG. 16A when the first node portion 21 or the second node portion 22 is brought into contact with the outer peripheral surface 7 f of the steel pipe 74. When the time curable material 5 such as concrete is provided so as to surround the outer peripheral surface 7f of the steel pipe 74, and the first node portion 21 or the second node portion 22 is brought into contact with the inner peripheral surface 7g of the steel pipe 74. As shown in FIG. 16 (b), the time-hardening material 5 such as concrete is provided by filling the inside 7 h of the steel pipe 74.

  The truss-like member 1 to which the present invention is applied is shown in FIG. 17 when the first node portion 21, the second node portion 22, and a part of the plurality of leg portions 3 are embedded in a time-curable material 5 such as concrete. As shown in a), the pre-cast concrete 50 may be provided so as to protrude in the out-of-plane direction Y from the upper surface 5a or the lower surface 5b of the time-curable material 5. Here, in the truss-like member 1 to which the present invention is applied, as shown in FIG. 17 (b), the part of the precast concrete 50 protruding from the upper surface 5 a or the lower surface 5 b is continuously provided on the precast concrete 50. It may be embedded in the time-hardening material 5 of the cast concrete 51. At this time, the truss-like member 1 to which the present invention is applied is constructed between the precast concrete 50 and the on-site cast concrete 51 by a plurality of legs 3, and the structure for reinforcing the precast concrete 50 and the on-site cast concrete 51. In addition to being a member, it is provided so as to be an adhering member that improves the integrity of the precast concrete 50 and the on-site concrete 51.

  As shown in FIG. 18, when the concrete structure 8 is provided above the ground surface 80, the truss-like member 1 to which the present invention is applied is shown in FIG. The part which protruded from the ground surface 80 as shown in FIG.18 (b) is embedded in the ground in the state which made the 2 node part 22 and some leg parts 3 protrude from the ground surface 80, It may be embedded in on-site casting concrete 51 provided continuously on the ground surface 80. At this time, the truss-like member 1 to which the present invention is applied is constructed by the plurality of leg portions 3 on the ground and the site-placed concrete 51 and is not only a structural member that reinforces the site-placed concrete 51. And it will be provided so that it may become an adhesion member which improves the integrity of the ground and the concrete structure 8.

  In the truss-like member 1 to which the present invention is applied, as shown in FIG. 19, a steel rod 73 such as a deformed reinforcing bar or a small-diameter steel pipe 74 is joined to a plurality of first node portions 21 or second node portions 22 by welding or the like. In the state of being installed, it may be provided to extend in one or both of the in-plane direction X and the out-of-plane direction Y. At this time, in the truss-like member 1 to which the present invention is applied, the steel rod 73 or the steel pipe 74 is attached to the time-curable material 5 such as concrete together with the first node portion 21, the second node portion 22, and the plurality of leg portions 3. It is embedded so as to be not only a structural member that reinforces the time-curable material 5 but also an adhesion member that improves the integrity of the truss-like member 1 and the time-curable material 5.

  As shown in FIGS. 20 to 24, the truss-like member 1 to which the present invention is applied is welded, bonded, screwed, bolted, to one or both of the first node portion 21 and the second node portion 22. The steel member 7 is joined by fastening or driving rods 28 to the bolts 27 that are fitted, tightened, or stud welded. At this time, as shown in FIG. 20, the truss-like member 1 to which the present invention is applied is in a state where the upper end surface 21 a of the first node portion 21 or the lower end surface 22 a of the second node portion 22 is in contact with the steel member 7. The welded portion J1 is provided by fillet welding or the like, or the adhesive location J2 is provided by using an adhesive or the like, and the first node portion 21 or the second node portion 22 and the steel member 7 are joined. The

  As shown in FIG. 21, the truss-like member 1 to which the present invention is applied is provided with a screw 23 or a bolt nut 24 penetrating the first node portion 21 or the second node portion 22 and the steel member 7. The steel member 7 may be joined by screwing or bolting in a state where the upper end surface 21a of the first node portion 21 or the lower end surface 22a of the second node portion 22 is in contact with the steel member 7. Further, as shown in FIG. 22, the truss-like member 1 to which the present invention is applied has the upper end surface 21a of the first node portion 21 or the lower end surface 22a of the second node portion 22 in contact with the steel member 7. By hooking and fitting the first node portion 21 or the second node portion 22 to the hook 25 or by binding the first node portion 21 or the second node portion 22 with a wire material 26 such as a steel wire. The steel member 7 may be joined.

  As shown in FIG. 23, the truss-like member 1 to which the present invention is applied has a bolt 27 erected by stud welding or the like to the steel member 7 so as to penetrate the first node portion 21 or the second node portion 22. Is fastened, or is inserted into the first node portion 21 or the second node portion 22 and the steel member 7 so as to be provided with a driving rod 28, so that the stud 27 is fastened to the bolt 27 or driven by the driving rod 28. The steel member 7 may be joined. Further, as shown in FIG. 24, the truss-like member 1 to which the present invention is applied has a rod-like position holding member 29 on the first node portion 21 or the second node portion 22 arranged away from the steel member 7. The steel member 7 may be joined by passing the threaded portion or the stud-welded bolt 27 and fastening the nut.

  As shown in FIG. 25A, the truss-like member 1 to which the present invention is applied is a time-curable material such as concrete in which the first node portion 21, the second node portion 22, and the plurality of leg portions 3 are cured. The bending force F, the pulling force P, the shearing force S, and the like act on the time-curable material 5 that has been embedded in the cured material 5.

  In the truss-like member 1 to which the present invention is applied, when a bending force F acts in the out-of-plane direction Y of the cured time-curable material 5, the truss-like member 1 is opposite to each other from the first node portion 21 or the second node portion 22. Each of the extending legs 3 bears a tensile force T acting in the opposite direction inside the time-curable material 5. In the truss-like member 1 to which the present invention is applied, the tensile force T acting on each leg portion 3 is applied in the opposite direction via the first node portion 21 or the second node portion 22 as shown in FIG. Each of the plurality of leg portions 3 extending in opposite directions is integrally formed via the first node portion 21 and the second node portion 22 so that the pair of legs 3 can be made to act as a pair.

  At this time, in the truss-like member 1 to which the present invention is applied, as shown in FIG. 25, each of the plurality of leg portions 3 is integrally formed via the first node portion 21 and the second node portion 22. By applying a tensile force T to each leg 3 so as to be paired in the opposite direction from the first node 21 or the second node 22, a plurality of legs 3 bear a pair of tensile forces T. Thus, a structural member that strongly resists the bending force F acting on the time-curable material 5 is obtained.

  Thereby, in the truss-like member 1 to which the present invention is applied, a pair of tensile forces T borne by the plurality of legs 3 are smoothly passed through the integrally formed first node portion 21 and second node portion 22. Therefore, it is possible to ensure reinforcement of the time-curable material 5 as a structural member that resists the bending force F acting on the time-curable material 5.

  Moreover, since the 1st node part 21, the 2nd node part 22, and the some leg part 3 are integrally formed, the truss-like member 1 to which this invention is applied is formed, and the 1st node part 21 or the 2nd node part 22 is formed. Therefore, it is not necessary to join the plurality of leg portions 3 to each other. At this time, the truss-like member 1 to which the present invention is applied does not require the joining work of the plurality of leg portions 3, thereby reducing the manufacturing cost and the joining location by joining the plurality of leg portions 3. By eliminating variations in quality, uniform quality can be maintained at the first node portion 21 or the second node portion 22.

  As a result, the truss-like member 1 to which the present invention is applied can be obtained by simply embedding the truss-like member 1 in a time-curable material 5 such as hardened concrete while reducing production costs and maintaining uniform quality. A structural member can be provided on the curable material 5, and the time-curable material 5 can be easily reinforced.

  In the truss-like member 1 to which the present invention is applied, when a pulling force P acts in the direction of separating the steel member 7 from the time-curable material 5 cured in the out-of-plane direction Y, as shown in FIG. When the shearing force S acts in a direction in which the time-curable material 5 and the steel member 7 cured in the in-plane direction X are displaced from each other, the adhesion state between the time-curable material 5 and the steel member 7 is maintained. It is provided as an attachment member for.

  In the conventional adhering member, a plurality of studs or perforations are provided in a discrete manner, so that the pulling force P or shear force S is intensively transmitted to some studs or perforations. The pulling force P and the shearing force S cannot be integrally resisted by a plurality of studs or perforations. On the other hand, in the truss-like member 1 to which the present invention is applied, the plurality of first node portions 21, the second node portions 22, and the plurality of leg portions 3 are integrally formed. Since S is mutually dispersed in the plurality of first node portions 21, the second node portions 22, and the plurality of leg portions 3, the pulling force P and the shearing force S are not intensively burdened on a part of the plurality. The first node portion 21, the second node portion 22 and the plurality of leg portions 3 can integrally resist the pulling force P and the shearing force S.

  As a result, the truss-like member 1 to which the present invention is applied is configured to integrally resist the pulling force P and the shearing force S at the plurality of first node portions 21, the second node portions 22, and the plurality of leg portions 3. As a result, since the truss-like member 1 as a whole can strongly resist the pulling force P and shearing force S, the steel member 7 and the time-curable material 5 can be reliably adhered. It becomes possible to make it.

  As shown in FIG. 26, the composite floor slab structure 10 to which the present invention is applied is used in combination with the deck plate 11 and the time-curable material 5 as a floor slab such as a building, a building, or a civil engineering structure.

  In the composite floor slab structure 10 to which the present invention is applied, for example, the depth direction X2 of the in-plane direction X is the floor span direction, and the width direction X1 of the in-plane direction X is the floor span orthogonal direction. It will be used as a large span floor slab.

  A composite floor slab structure 10 to which the present invention is applied includes a truss-like member 1 according to the first embodiment or the second embodiment, a deck plate 11 provided above or below a cured time-curable material 5, and an in-plane And a plurality of longitudinal main bars 15 extending substantially linearly in the depth direction X2 of the direction X.

  The deck plate 11 is provided, for example, continuously below the time-curable material 5 and extends in the in-plane direction X and has a flat plate 12 such as a steel plate 70 and the flat plate 12. The reinforcing rib 13 is provided so as to protrude in the out-of-plane direction Y from the one surface 12a.

  The deck plate 11 has a plurality of reinforcing ribs 13 arranged in the width direction X1 in the in-plane direction X, and is open to any one of the in-plane directions X on the protruding surface 13a protruding in the out-of-plane direction Y. And a plurality of hooks 25 having grooves 25a formed therein. In the deck plate 11, for example, a plurality of hooks 25 are formed adjacent to the depth direction X <b> 2 in the in-plane direction X on the projecting surfaces 13 a of the respective reinforcing ribs 13. 26, the hook 25 having the groove 25a that opens toward the upper left side of the drawing in FIG. 26 and the hook 25 having the groove 25a that opens toward the lower right side of the drawing in FIG. A groove 25a of the hook 25 is formed in the reverse direction.

  As shown in FIGS. 27 and 28, when the deck plate 11 is provided below the time-curable material 5, the flat plate 12 faces the lower surface 5 b of the time-curable material 5 and is disposed upward. A plurality of reinforcing ribs 13 are provided on one side 12a, and the other side 12b arranged downward is formed in a substantially flat shape or the like.

  Each reinforcing rib 13 is formed by using a bent steel material or the like and extending substantially linearly in the depth direction X2 in the in-plane direction X. Each of the reinforcing ribs 13 has a protruding surface 13a such as a substantially flat shape that is arranged to protrude in the out-of-plane direction Y substantially parallel to the one surface 12a of the flat plate 12, and each of the plurality of reinforcing ribs 13 protrudes. The surfaces 13a extend in the depth direction X2 and are formed substantially parallel to each other.

  Each longitudinal main bar 15 is provided with a reinforcing bar such as a deformed bar, and extends substantially linearly in the depth direction X2 in the in-plane direction X. Each longitudinal main bar 15 is spaced apart from the protruding surface 13a of the reinforcing rib 13 in the out-of-plane direction Y, and is different in position in the width direction X1 in the in-plane direction X substantially parallel to the protruding surface 13a of each reinforcing rib 13. Arranged.

  Each longitudinal main bar 15 is joined to a horizontal bar 16 such as a deformed bar extending substantially linearly in the width direction X1 in the in-plane direction X as necessary. A plurality of the horizontal streaks 16 are provided so as to be arranged substantially parallel to each other in the depth direction X2 in the in-plane direction X. A plurality of vertical main bars 15 are erected in a direction substantially orthogonal to the direction X.

  Each vertical main bar 15 and horizontal bar 16 may be a mesh assembly bar in which the vertical main bar 15 and the horizontal bar 16 are assembled in a lattice shape by factory manufacture.

  In the truss-like member 1, a plurality of first node portions 21 are arranged on the same plane substantially parallel to the one surface 12 a of the flat plate 12. In the truss-like member 1, each of the longitudinal main bars 15 extending substantially linearly is continuously installed on the upper end surface 21a of the first node portion 21 adjacent in the depth direction X2, and a plurality of first truss-like members 1 are welded or fastened. It is joined to each of the node parts 21.

  In the truss-like member 1, a plurality of second node portions 22 are arranged on the same plane substantially parallel to the one surface 12 a of the flat plate 12. In the truss-like member 1, the projecting surfaces 13 a of the reinforcing ribs 13 extending substantially linearly are continuously provided on the lower end surface 22 a of the second node 22 adjacent in the depth direction X <b> 2, and a predetermined joining method is used. Joined to each of the plurality of second node portions 22.

  In the truss-like member 1, each of the plurality of second node portions 22 is joined to the protruding surface 13 a of the reinforcing rib 13 by a joining method such as welding, adhesion, screwing, bolting, tightening, or driving rod. In the truss-like member 1, in particular, each of the plurality of second node portions 22 is hooked on the groove 25 a of the hook 25 by the protruding surface 13 a of each reinforcing rib 13 and joined by fitting.

  For example, the hook 25 cuts the protruding surface 13a of the reinforcing rib 13 into a U-shape or the like to cause a U-shaped or other cut portion, thereby forming a groove 25a that opens in the depth direction X2 in the in-plane direction X. Is done. The hook 25 is joined by welding, bonding, screwing, bolting, or the like to a protruding surface 13a of the reinforcing rib 13 to join a separate L-shaped member to the width direction X1 in the in-plane direction X or the depth direction X2. A groove 25a may be formed.

  As shown in FIG. 28, the hook 25 includes a forward hook 251 in which a groove 25a is opened toward the right side in the depth direction X2 and a left side in the depth direction X2 in each of the plurality of hooks 25 adjacent in the depth direction X2. The reverse direction hooks 252 having the grooves 25a opened toward are alternately arranged so that the opening directions of the grooves 25a are opposite to each other in the depth direction X2.

  First, as shown in FIG. 29 (a), the truss-like member 1 hooks the second node portion 22 to each of the plurality of forward hooks 251 so that a part of the plurality of second node portions 22 is Only the protruding surface 13a provided with the forward hook 251 is joined by fitting in the groove 25a of the forward hook 251.

  At this time, the truss-like member 1 is in a state in which a part of the plurality of second node portions 22 is not fixed except at a place hooked on the forward hook 251 and all of the plurality of first node portions 21 are provided. However, by being in a non-fixed state, each leg portion 3 can be inclined so as to have various angles, and the whole can be deformed.

  Next, the truss-like member 1 is configured so that each leg 3 is inclined at various angles, so that the second node portion other than the portion hooked on the forward hook 251 as shown in FIG. 22 is hooked from the left side of the depth direction X2 into the groove 25a of the reverse hook 252 that opens toward the left side in the depth direction X2, and each of the plurality of second node portions 22 is hooked on the hook 25. It becomes.

  In the composite floor slab structure 10 to which the present invention is applied, after each of the plurality of second node portions 22 is hooked on the respective hooks 25 to integrate the truss-like member 1 and the deck plate 11 together. 27 and FIG. 28, the longitudinal main bars 15 are joined to each of the plurality of first node portions 21, and the lateral bars 16 for preventing cracks are connected to each of the plurality of longitudinal main bars 15. Be joined.

  In the composite floor slab structure 10 to which the present invention is applied, the assembly bar arrangement in which the truss-like member 1 and the deck plate 11 are integrated and the longitudinal main bars 15 and the lateral bars 16 are joined is provided at the construction site. It may be constructed by construction, or an assembly bar arrangement pre-assembled at an assembly factory or site site may be raised above a building beam or the like.

  Next, in the composite floor slab structure 10 to which the present invention is applied, the on-site cast concrete 51 is placed on the one surface 12a side of the flat plate 12, and the truss-like member 1, the reinforcing rib 13, the longitudinal main reinforcement 15 and the lateral reinforcement. 16 is embedded in the hardened on-site cast concrete 51 to form a floor slab.

  Here, the composite floor slab structure 10 to which the present invention is applied has sufficient weight of the on-site cast concrete 51 in a state before being hardened when the on-site cast concrete 51 is placed on the one surface 12a side of the flat plate 12. Therefore, it is effective not only to integrate the truss-like member 1 and the deck plate 11 but also to reinforce the truss-like member 1 with a plurality of longitudinal main bars 15.

  At this time, the composite floor slab structure 10 to which the present invention is applied has the first node portion 21, the first node portion 21, The two-node portion 22 and the plurality of leg portions 3 are used in a state of being embedded in the time-curable material 5 together with the reinforcing ribs 13, the longitudinal main bars 15, and the lateral bars 16.

  Finally, in the composite floor slab structure 10 to which the present invention is applied, a plurality of reinforcing ribs 13 are arranged in parallel in the width direction X1 that coincides with the floor span orthogonal direction above the beam of the building. As described above, the truss-like member 1, the reinforcing ribs 13, the longitudinal main bars 15, and the transverse bars 16 are embedded in the time-curable material 5 so that a floor slab such as a building is constructed.

  The composite floor slab structure 10 to which the present invention is applied is a special deck plate manufacturing because the deck plate 11 is used as a discarded form of the time-curable material 5 such as concrete, which is generally used in buildings and the like. Equipment is not required, and capital investment costs can be reduced.

  In the composite floor slab structure 10 to which the present invention is applied, each leg portion 3 of the truss-like member 1 is inclined at various angles, and the entire truss-like member 1 is deformed, whereby the groove 25a of the forward hook 251 is obtained. Since each of the plurality of second node portions 22 can be sequentially hooked in each of the grooves 25a of the reverse hook 252, the operation of integrating the truss-like member 1 and the deck plate 11 can be simply performed. It becomes possible.

  In the composite floor slab structure 10 to which the present invention is applied, the truss-like member 1, the reinforcing ribs 13, the longitudinal main bars 15, and the like are embedded in a time-curable material 5 such as concrete cured on one side 12 a side of the flat plate 12. Thus, it is possible to provide an assembly bar arrangement that can increase the upper load during use or the floor span. In the composite floor slab structure 10 to which the present invention is applied, steel materials are mainly used for the truss-like member 1, the reinforcing ribs 13, the longitudinal main bars 15, etc., but the reinforcing ribs 13 and the like are added to the time-curable material 5. By being embedded, it becomes possible to improve the fire resistance of the floor slab when a fire occurs.

  The composite floor slab structure 10 to which the present invention is applied does not require an increase in the height of the reinforcing ribs 13 even when the floor span is increased, which increases the material cost of the reinforcing ribs 13. In addition to restraining, it is possible to ensure sufficient rigidity by reinforcing the truss-like member 1 of the first embodiment or the second embodiment by causing the reinforcing rib 13 to bear a sufficient bending tensile stress.

  As shown in FIG. 26, the composite floor slab structure 10 to which the present invention is applied uses the truss-like member 1 of the second embodiment shown in FIG. 8 in addition to the case of using the truss-like member 1 of the first embodiment. However, each leg 3 can be similarly deformed by inclining it in the width direction X1, so that the opening direction of the groove 25a of the hook 25 is adjusted in the in-plane direction X, and the second node portion 22 can be hooked in the groove 25 a of the hook 25.

  As mentioned above, although the example of embodiment of this invention was demonstrated in detail, all the embodiment mentioned above showed only the example of actualization in implementing this invention, and these are the technical aspects of this invention. The range should not be construed as limiting.

1: truss-like member 10: composite floor slab structure 11: deck plate 12: flat plate 13: reinforcing rib 13a: projecting surface 15: longitudinal main bar 16: lateral bar 2: node part 21: first node part 21a: upper end surface 22: Second node portion 22a: Lower end surface 23: Screw 24: Bolt nut 25: Hook 25a: Groove 251: Forward hook 252: Reverse hook 26: Wire rod 27: Bolt 28: Driving rod 29: Position holding member 3: Leg part 4: Hole part 40: Corner part 41: Side part 5: Temporarily curable material 5a: Upper surface 5b of time curable material: Lower surface 50 of time curable material 50: Precast concrete 51: On-site cast concrete 6: Plate material 60: Expanded metal 60a: Cut 7: Steel member 7a: Upper surface 7b of steel plate or folded plate: Lower surface 7c of steel plate or folded plate: Flange portion of section steel d: Shaped steel web portion 7e: Shaped steel groove 7f: Steel pipe outer peripheral surface 7g: Steel pipe inner peripheral surface 7h: Steel pipe inner tube 70: Steel plate 71: Folded plate 72: Shaped steel 73: Steel rod 74: Steel pipe 8: Concrete structure 80: Ground surface A: One side B: The other side X: In-plane direction X1: Width direction X2: Depth direction Y: Out-of-plane direction

Claims (2)

A synthetic floor slab structure combining a deck plate and a time-curable material,
A truss-like member in which a plurality of node portions are arranged at different positions in the out-of-plane direction and a substantially flat plate-like flat plate extending from one side of the flat plate in an out-of-plane direction and protruding in the out-of-plane direction. A deck plate in which a reinforcing rib having a protruding surface such as a substantially flat shape is arranged in parallel to the direction perpendicular to the floor span, and a longitudinal main bar extending substantially linearly in the floor span direction in the in-plane direction,
The truss-shaped member is disposed on one side in the out-of-plane direction and the first node portion to which the longitudinal main bars are joined, and the second node portion is disposed on the other side in the out-of-plane direction and joined to the reinforcing rib. And a plurality of legs extending in an out-of-plane direction from the first node part or the second node part, and the first node part, the second node part, and the plurality of leg parts, A structural member or adhering member of a time-curable material that is integrally formed by bending a single plate having a plurality of substantially rectangular holes formed in an out-of-plane direction and cured on one side of the flat plate The first node portion, the second node portion, and the plurality of leg portions are used in a state of being embedded in the time-curable material together with the reinforcing ribs and the longitudinal main bars. Synthetic floor slab structure. The deck plate is provided with a plurality of the reinforcing ribs arranged in the width direction on one side of the flat plate, and is provided on a protruding surface protruding in an out-of-plane direction by each of the plurality of reinforcing ribs. Having hooks formed with grooves that open in any of the directions, the hooks adjacent to each other in the in-plane direction, the grooves of the hooks being formed in opposite directions in the in-plane direction, The synthetic floor slab structure according to claim 1, wherein the second node portion is hooked and fitted into the groove of the hook.

Images