JP2799365B2 - Construction method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a frame method.

[0002]

2. Description of the Related Art A conventional method of forming a frame includes a plurality of spacers formed in a grid shape by crossing two horizontal lines and two vertical lines between a pair of opposing band nets as a form frame for a frame. After laying the formwork on the slope that is the construction site, laying it in a grid, arranging the reinforcing steel between the band nets, and then using the solidified material such as mortar, etc. It is being sprayed.
Further, in order to simplify the arrangement work, there has been proposed a formwork for a legal frame in which an intermediate portion of an upper horizontal line of a spacer is cut and an upper portion is opened.

[0003]

Problems to be Solved by the Invention There are the following problems in the above-mentioned method. The opening of the horizontal line of the spacer in the legal form frame causes deformation of the legal form form due to opening of the upper part of the band net. As a result, it is not possible to construct a legal framework as designed.

[0004]

[Object of the present invention] The present invention has been made in view of the above points, and an object thereof is to prevent deformation of a mold,
It is an object of the present invention to provide a legal framework method capable of constructing a legal framework according to design dimensions.

[0005]

[Means for Solving the Problems] As means for solving the above problems, the present invention disposes a formwork for a legal frame having spacers between a pair of opposing belt nets on a slope. In addition, in the method for forming a frame, at least two reinforcing bars are arranged on the spacer of the form for the frame, and then a solidifying material is sprayed on the form for the frame, and the spacer includes a horizontal line and a vertical line. Using a wire formed by crossing in a cross-girder shape and providing an opening in the horizontal line on the upper side, a holding material that regulates their separation is previously attached to a reinforcing bar arranged on the upper side of the spacer, and the upper side rebar, and performing reinforcement by bundling the placement and the vertical line on the upper horizontal line,
Provide a method of construction. Further, the holding material is provided with a ring-shaped portion at both ends of a rod portion, through which a reinforcing bar can be inserted, to provide a method of forming a frame. Further, the present invention provides a method of constructing a method, wherein the upper reinforcing bar is foldable in a straight line via a holding material. Further, the rebar is
One or both ends are bent into a crank shape to provide a method of constructing a frame.

[0006]

Embodiment 1 An embodiment of the present invention will be described below with reference to the drawings. <A> Formwork for legal form (FIG. 1) As shown in FIG. 1, a formwork for legal form 10 (hereinafter referred to as a formwork 10) is composed of a pair of opposing band nets 11 and 11, and a band net 1
And a spacer 12 that extends horizontally between the two.
The band net 11 is a pair of belts arranged in parallel with each other facing each other, and the facing distance is maintained by a spacer 12 disposed therebetween. The spacers 12 are connected to the belt nets 11, 1
It is a member that maintains the opposing distance between the two, and also functions as a support member for the upper rebars 20, 20 and the lower rebars 30, 30. For example, as shown in FIG. 1, the spacer 12 is formed by crossing vertical straight lines 121, 121 parallel to a vertical direction, and short upper horizontal lines 122, 122, and lower horizontal lines 123 in a grid pattern. Upper horizontal line 12
An opening 124 is opened between the two. This opening 12
Reference numeral 4 denotes a portion for facilitating the disposition of the lower reinforcing bar 30, which enables the lower reinforcing bar 30 to be installed from above the spacer 12.

<B> Holding material (FIGS. 1, 2, and 3) A holding material 40 is attached to the upper reinforcing bars 20,20. The holding member 40 is a member that regulates the separation of the upper reinforcing bars 20, 20, and has a structure in which annular portions 42, 42 are formed at both ends of the rod portion 41. The annular portion 42 is a portion through which the upper rebar 20 is inserted, and has an inner diameter slightly larger than the outer diameter of the upper rebar 20. Further, as shown in FIG. 2, the entire length of the rod portion 41 is
20 with the upper horizontal line 1 of the spacer 12 inserted.
The length of the upper reinforcing bar 20 is set such that the upper reinforcing bar 20 abuts on the inside of the vertical line 12 when placed on the vertical line 21. Note that the entire length of the rod portion 41 may be a length in which the upper reinforcing bar 20 contacts the outside of the vertical line 12 as shown in FIG. At this time, the arrangement position of the lower reinforcement 30 may be changed in accordance with the arrangement position of the upper reinforcement 20. It is preferable that the installation intervals of the holding members 40 be the same or a multiple of the arrangement pitch of the spacers 12.

<C> Legal frame method Next, an example of the legal frame method will be described. (1) Arrangement of Formwork (FIG. 1) The formwork 10 that has been transported in a folded state is unfolded at a site on a slope and installed on a slope to be constructed. The formwork 10 installation,
It may be performed in a known form such as a lattice shape.

(2) Arrangement of Reinforcement (FIGS. 1 and 2) When the formwork 10 is arranged, the lower reinforcing bar 30 is inserted into the spacer 12 through the opening 124 and is arranged at the corner where the lower horizontal line 123 and the vertical line 121 intersect. And unite. At that time, the lower reinforcing bar 30 can be inserted into the spacer 12 from above the spacer 12, and there is no need to insert the lower reinforcing bar 30 into each spacer 12 from the end side of the mold 10, and the lower reinforcing bar 30
Can be arranged efficiently.

Next, as shown in FIG. 1, the upper rebars 20, 20 connected by the holding member 40 are connected to the upper horizontal line 1 of the spacer 12.
22, and the upper rebar 20 is brought into contact with the inside of the vertical line 12 and bound. The upper rebars 20, 20 are holding members 4
0, the separation is regulated, so that the distance between the vertical lines 121 of the spacer 12 becomes an appropriate distance, and the opening 124
Is prevented by the holding member 40.

The lower rebar 30 and the upper rebar 20
Arrange hoop muscle (Stirrup muscle) around the body. At that time, the lower reinforcing bar 30 and the upper reinforcing bar 20 are bound to the spacer 12 and the opening 124 of the spacer 12 is not opened, so that the hoop reinforcing work can be easily performed.

(3) Spraying A solid frame such as mortar is sprayed between the belt nets 11 to construct a legal frame. The weight of the solidified material sprayed is the net 1
It acts as a force to incline the upper portions of the webs 11 and 11 outward, but is supported by the holding material 40 and prevents the upper portions of the webs 11 and 11 from tilting. Therefore, a legal frame according to the design dimensions can be constructed.

[0013]

[Embodiment 2] In the above method, the rod portion 41 and the annular portion 42 of the holding member 40 are bent and joined to form the upper reinforcing bar 2.
In some cases, 0 and 20 may be freely foldable linearly via the holding material 40. For example, as shown in FIG.
Reference numeral 0a denotes a structure in which the annular portions 42 are joined to both ends of the rod portion 41 in a bent state, and when the upper reinforcing bars 20 are inserted into the annular portions 42, the upper reinforcing bars 20, 20 can be folded. The inner diameter of the annular portion 42 is formed to be sufficiently larger than the outer diameter of the upper rebar 20, and is set to a size that allows the upper rebars 20, 20 to be folded without difficulty. By configuring the holding material 40 in this manner, transportation or the like can be performed in a state where the upper rebars 20, 20 are folded, and handling becomes easy.

[0014]

[Embodiment 3] In the method frame method, the inner diameter of the annular portion 42 of the holding member 40 may be formed to be sufficiently larger than the outer diameter of the upper rebar 20, and the upper rebars 20, 20 may be easily folded. . For example, as shown in FIG. 5, the holding member 40b has a structure in which large-diameter annular portions 42b are joined to both ends of the rod portion 41, and the upper reinforcing bar 2 is attached to the annular portions 42b, respectively.
When 0 is inserted, the upper rebars 20, 20 can be folded. As described above, by configuring the holding material 40,
As in the case of the second embodiment, transportation and the like can be performed in a state where the upper rebars 20 and 20 are folded, and handling becomes easy.

[0015]

[Fourth Embodiment] In the above method, there may be a structure in which an annular portion 42 is movably attached to an end of a rod portion 41 of the holding member 40. For example, as shown in FIG. 6, the holding member 40c has a structure in which an annular portion 42c as an annular body is connected to both ends of a rod portion 41 in a chain shape. By configuring the holding member 40c in this manner, as in the second and third embodiments, the upper rebars 20, 20 can be transported in a folded state, and handling becomes easy.

[0016]

[Embodiment 5] In the method, the reinforcing bars 20, 3
In order to keep the installation position of 0 constant, those ends may be bent. For example, as shown in FIG. 7, one of the ends of the adjacent reinforcing bars 20 and 20 is bent in a crank shape so that the axes of the connected reinforcing bars 20 and 20 are aligned. Also, as shown in FIG. 8, both ends of the adjacent reinforcing bars 20, 20 are bent into a crank shape,
The axes of the connected rebars 20 and 20 are aligned. Then, by connecting the reinforcing bars 20, 20, the reinforcing bars 20
The deviation of the axis by only the outer diameter of the shaft can be avoided. Therefore, it is possible to construct a legal frame according to the design dimensions.

[0017]

As described above, the present invention has the following effects. <B> By setting a reinforcing bar connected by a holding material on a spacer having an opening in the upper horizontal line, it is possible to prevent the band net from tilting outward. <B> Since the holding material having a predetermined length is located between the vertical lines of the spacer, the interval between the webs of the formwork is an appropriate distance. Therefore, it is possible to construct a legal frame as designed. <C> The opening of the spacer can be prevented at the same time as the setting of the reinforcing steel on the upper side, and the work for preventing the opening of the spacer is not separately required. Further, the opening of the spacer is prevented, so that the hoop streak can be easily set. For this reason, work on a steep slope is facilitated and can be omitted. Therefore, work efficiency and work safety in the arrangement of the formwork are improved. <D> If the upper reinforcing bar can be linearly folded via the holding material, the transportability is improved, and the construction of the legal framework can be performed efficiently. <E> If the ends of the reinforcing bars are bent in a crank shape, no deviation occurs in the axis of the connected reinforcing bars, so that a legal frame according to the design dimensions can be constructed.

[Brief description of the drawings]

FIG. 1 is an explanatory view of the method of frame construction

FIG. 2 is an explanatory view of the method of frame construction

FIG. 3 is an explanatory view of a method of frame construction.

FIG. 4 is an explanatory view of a holding material according to a second embodiment.

FIG. 5 is an explanatory view of a third embodiment.

FIG. 6 is an explanatory view of a fourth embodiment.

FIG. 7 is an explanatory view of a fifth embodiment.

FIG. 8 is an explanatory view of a fifth embodiment.

Continuation of front page (58) Field surveyed (Int.Cl. ⁶ , DB name) E02D 17/20 104

Claims (4)

(57) [Claims] 1. A method for forming a legal frame having spacers disposed between a pair of opposed belt nets is provided on a slope, and at least two upper and lower spacers are provided on the spacer of the legal form mold. After arranging the reinforcing bars, in the method of frame construction method in which the solidifying material is sprayed onto the formwork for the formwork, the spacer is formed by intersecting a horizontal line and a vertical line in a cross-girder shape, and an opening is formed in the upper horizontal line. used as provided, mounted in advance a holding member for regulating the isolation thereof to rebar placing the upper side of the spacer, the upper reinforcing bar, by binding to the placement and the vertical line on the upper horizontal line A framing method, characterized by rebar arrangement. 2. The method according to claim 1, wherein the holding member is formed by forming annular portions at both ends of a rod portion through which a reinforcing bar can be inserted. 3. The method according to claim 1, wherein the upper reinforcing bar is linearly foldable via a holding material. 4. The method according to claim 3, wherein one or both ends of the reinforcing bar are bent in a crank shape.