JPH0454018B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention makes it possible to streamline roof construction by installing a pre-assembled roof frame structure on the beam top surface of the main body of the house. Concerning roof construction methods that can improve safety.

[Conventional technology]

Conventionally, roof construction work has been carried out by sequentially lifting and erecting the purlin, nose purlin, etc. together with the ridgepole using bundles or the like on the beam at the upper end of the main body of the house.

[Problem to be solved by the invention]

However, with this construction method in which members are lifted one after another, the number of times each member is lifted increases, the crane work time increases, and the time required for building construction work is extended, reducing construction efficiency and increasing construction costs. . This also increases the time required to work at heights, and the safety of the work is also poor.

The present invention improves the efficiency of roof construction by using a roof frame structure in which a plurality of roof beams are integrated in advance using joint beams, and reduces construction costs by reducing the time required for crane work. The objective is to provide a roof construction method that can improve work safety by lowering construction costs and shortening construction time.

[Means to solve the problem]

The present invention provides a pair of roof pillars each having an inclined eave beam piece at the upper end of the support piece, which is placed oppositely with the eave beam pieces facing each other, and between the tips of the eave beam pieces, a roof beam which slopes on both sides of the ridge. A roof in which a plurality of roof beam bodies arranged in parallel are formed by the eave beam pieces and the roof beam pieces, which are spanned by connecting a dogleg-shaped beam having a piece to the tip of the eave beam piece. This roof construction method is characterized in that a roof frame body, which is integrally joined using joint beams that connect beams, is erected on the upper surface of horizontal beams at the upper end of the main body of the house.

[Effect]

In this way, the roof beam body can be formed by connecting the roof columns using the dogleg-shaped beams, making the assembly work convenient. In addition, since the roof pillars have an slanted eave beam piece at the upper end of the support piece, it is possible to equalize the weight of the doglegged beam and the roof pillar, which also simplifies assembly on the ground. can. In addition, the roof frame structure is integrally assembled by connecting a plurality of roof beams with spliced beams, and since such assembly work can be performed on the ground, work at heights can be reduced. Further, such a roof frame structure can be lifted up using a crane or the like and spanned over beams of the main body of the house to form a roof structure. Therefore, by streamlining the construction work, reducing construction time, and shortening crane work time, it is possible to improve work safety, increase efficiency, and reduce construction costs. In addition, the strength of the roof beam can be increased at the intersection where large bends occur by fixing the strut piece and the eave beam piece together in advance by welding or the like.

〔Example〕

An embodiment of the roof construction method of the present invention will be described below with reference to the drawings, taking as an example the case where the roof construction method of the present invention is used to form the roof R of a two-story house H illustrated in FIG.

In the house H, a box-shaped roof structure C is protruded from the roof R, and an L-shaped duct D is provided on the roof structure C, thereby forming a ventilation system for the house H. There is.

Furthermore, by providing a skylight W, it also functions as a light source. As the house frame is schematically shown in FIG. 2, the house H has two roof frame structures F1 and F2 between the beams M and M arranged along the outer wall of the house at the upper end of the house main body A. By bridging the bridges and connecting them using ridgepole-shaped connecting beams Q1 and purlin-shaped connecting beams Q2 and Q3,
Roof R leaving balcony K at one end of house main body A
can form roof assemblies. Further, such roof frame structures F1 and F2 are assembled on the ground, then lifted using a crane or the like and spanned between the beams M and M.

Further, the roof frame structure F1 located on one verge side has the roof structure C at its eaves.
The frame J is fixed, and the roof frame F1 is
In accordance with the width of the frame J, the other roof frame F
It is formed to be half the width of 2.

As shown in detail in FIG. 3, the roof frame structure F1 has a pair of left and right roof pillars 2, 2 each having an inclined eaves piece 6 at the upper end of the support piece 5.
are placed facing each other, and a dogleg-shaped beam 3 having ridge beam pieces 7, 7 inclined on both sides of the ridge is spanned between the tips of the roof beam bodies E, E. In addition, in this example, a ridgepole-shaped joint beam S1 and a purlin-shaped joint beam S2, S3 are bridged between the two roof beam bodies E and E arranged in parallel to integrate them. Together, the roof frame structure F1 is formed.

Further, as shown in FIG. 6, the roof frame F2 similarly has a ridge beam piece 7A that slopes on both sides of the ridge between a pair of roof columns 2A, 2A, which has an inclined eaves beam piece 6A at the upper end of the support piece 5A. , 7A, the roof beam body EA spans the doglegged beam 3A, and the connecting beam S1A connects between EA,
It is formed by connecting using S2A, S3A...

As shown in FIGS. 3 to 5, the support piece 5 of the roof pillar 2 for forming the roof frame F1 has the inclined eaves piece 6 fixed integrally to the upper end of one flange of the base 31 made of H-shaped steel. Possibly said roof pillar 2
A leg portion 32 is formed at the lower end of the base portion 31 via a receiving piece that closes the cross section thereof. The leg portion 32 is constructed by horizontally fixing the stand piece 34 to the lower end of the leg piece 33 hanging down from the receiving piece, and by making a stay connecting between the receiving piece and the stand piece 34 protrude outward. A brace attachment piece 35 is formed perpendicular to the eave edge piece 6.

As shown in detail in FIG. 5d, the upper end of the base 31 is cut off diagonally with the same slope as the eave edge piece 6 and slightly protrudes above, and the upper end has receiver pieces 37, 37 that are inclined at the same slope. Weld to both sides of the web. The web constitutes a support piece 17 that stands up vertically from the upper part of the receiving piece 37, and the support piece 1
The column joint portion 9 is formed by welding angle pieces 18, 18 to both parallel surfaces of the column 7.

The angle pieces 18 are wing pieces 18A that intersect at right angles,
18B, and its upper and lower ends are cut diagonally in the inclination direction, and each one of the wing pieces 18A, 18A is placed along both sides of the support piece 17, and the lower ends are welded in opposite directions. are doing. Therefore, the other wing pieces 18B, 18B protrude perpendicularly to the support piece 17, and in this example, the outward surface of the wing piece 18A is positioned substantially on a straight line. the result,
4 wing pieces 18 of 2 angle pieces 18, 18
A, 18A, 18B, 18B are the support pieces 17
It forms a roughly cross-shaped gap with a thickness of . Note that holes are bored in the wing pieces 18A and 18B.

Further, as shown in FIGS. 4 and 5, a receiving piece 38 having the same slope is provided below the receiving piece 37, and a receiving piece 38 is also provided below the receiving piece 37.
7 and 38, a vertical beam connecting piece 19 is provided which projects perpendicularly from the web of the base 31 and extends in a direction perpendicular to the eaves beam piece 6.

The beam connecting piece 19 is made of a flat plate and is connected to the receiving piece 3.
7, 38 and the fixing part welded by the web, a fixing part is formed with a hole through an inclined part that slopes diagonally downward, and by using the hole,
Horizontal connecting beams S4, Q4, etc., which are orthogonal to the eave beam piece 6, can be connected at a low point different from the height of the eave beam piece 6.

The connecting beams S4 and Q4 are made of H-shaped steel with upper and lower flanges, and are bolted to the beam connecting piece 19 via connecting plates using holes provided in the webs.

Note that a brace attachment piece 35 is provided below the beam connecting piece 19 and above facing the eaves beam piece 6.

In addition, in the roof frame F1, the outside of the house H,
That is, the beam connecting piece 19 and the brace attachment piece 35 are formed only on the indoor side of the support piece 5 located on the verge side.

The eave joist piece 6 and the ridge beam piece 7 are both made of H-shaped steel with the same cross-section, and are arranged with flanges positioned above and below, and connecting fittings 20, 2
By connecting them using 0, the eaves edge piece 6 and the ridge beam piece 7 form a roof beam B that is continuous and supported by the support pieces 5, 5.

As shown in detail in FIG. 4, the fitting 20 has vertical pieces 2 along the web on the inner edges of the upper piece 20A and the lower piece 20B that can contact the lower surface of the upper flange and the upper surface of the lower flange.
Two stays 20D, 20D connecting an upper piece 20A and a lower piece 20B are provided on a U-shaped base provided with 0C. Further, the base body has holes formed on each side of the stay 20D so as to straddle the eaves beam piece 6 and the ridge beam piece 7 and to align the four holes provided in the web. Also, the upper piece 20A and the lower piece 20C are provided with transparent holes that are aligned with the holes provided in the upper and lower flanges, and the two fittings 20, 20
are connected to each other using bolts that are inserted into both sides of the web and pass through the holes, thereby forming a connecting portion T.

Incidentally, on the upper surface of the connecting portion T, together with the eave side vertical members 11, the ridge side vertical members 12 forming the frame J of the roof structure C are fixed, and on the lower surface of the connecting portion T, the roof side vertical members 12 are fixed. The upper end of the support post 4 is fixed.

In this example, the roof structure C has a box shape whose side surfaces are approximately diamond-shaped along the slope of the roof, and the frame body J
As shown in FIGS. 8 and 9, the vertical members 11, 11 on the eaves side are disposed at a low point in the slope direction of the roof R and are connected to the column joints 9 of the column pieces 5; and ridge side vertical members 12, 12 located on the upper surface of the connection portion T at a higher location than the side vertical members 11,
Vertical members 11 and 12 on the eave side and ridge side facing the slope direction
Side joint material 13 that connects the space between the top and bottom, and vertical material 1 on the eave side
Front joint materials 14, 14 connect upper and lower spaces between 1 and 11,
Successor material 1 that joins the top and bottom of the vertical members 12 and 12 on the ridge side
5 and 15.

The vertical members 11 on the eave side are shown in Fig. 9, Fig. 10 a to c,
As shown in detail in FIGS. 14 and 15, by continuously providing protruding pieces 22, 22 on both sides of the base piece 21 whose upper and lower parts are cut in accordance with the inclination direction of the roof R, a cross shape is formed over the entire length. By forming the cross section, a cross section 10 is formed at the lower end of the vertical member 11 on the eave side. The base piece 21 has the same thickness and approximately the same width as the support piece 17, and therefore, the base piece 21 has the same thickness and width as the support piece 17.
A, 18A, and can be inserted into the gap between them.
Further, the protruding pieces 22, 22 are connected to the other wing pieces 18B, 18.
It is protruded from a slightly different position so as to be in contact with the outward facing surface of B. Further, by providing holes in the base piece 21 and the protruding piece 22, the base piece 21 and the protruding piece 22 are bolted to the wing pieces 18A and 18B that are in contact with each other, respectively. As described above, the pillar joint part 9 has a cross shape and is connected to the cross part 10, thereby making it possible to achieve a strong connection with good workability and no displacement.

The vertical member 11 on the eave side is provided with a brace mounting piece 35 above it along with appropriate stays for reinforcement.

Also, the vertical members 12 on the ridge side are shown in Figures 8 and 9, and 11a~
As shown in Figure c, a mounting piece 23 having the same inclination as the roof R is attached to the lower end of the base of the cross, which has protruding pieces 22, 22 on both sides of the base piece 21, with the base being vertical. has been established. In addition, the vertical member 12 on the ridge side is connected to the eaves beam piece 6 at the connecting portion T.
The mounting piece 23 is attached to the connecting portion T by inserting a bolt that fixes the flange on the ridge beam piece 7 and the upper piece 20A of the joint 20 through the mounting piece 23. In addition, a suitable stay is provided on the vertical member 12 on the ridge side, and a brace mounting piece 35 is provided projecting above the stay.

The side joint material 13 is as shown in FIG.
Opposing base pieces 21, 2 of the vertical members 11 on the eave side and the vertical members 12 on the ridge side, which have a base made of an angle member with both ends diagonally cut, and which face the roof inclination direction.
1, bolt one wing piece 13A. Furthermore, by fixing one wing piece 13A, the other wing piece extends outward, and the panel attachment piece 24 is fixed by the other wing piece.
is formed. Also, the front and successor materials 14 and 15 are made of similar angle materials, and each wing piece 14
A, 15A are bolted to each of the opposing projecting pieces 22, 22 of the longitudinal members 11, 12, and the other wing projects outwardly and is similarly connected to the panel mounting pieces 24,
It constitutes 24.

A brace V for reinforcing the upper surface of the frame J is bridged between the brace attachment pieces 35, and a brace V is also provided on each side of the frame J.
will be bridged.

Also, as mentioned above, the frame J includes the vertical members 11 on the eave side.
The cross section 10 at the lower end of the column joint section 9 at the upper end of the column piece 5
and connect the vertical member 12 on the ridge side to the mounting piece 2.
3 to the upper surface of the connecting portion T, it is firmly fixed on the roof beam R.

Further, the lower surface of the connecting portion T is supported by the roof support beam 4.

As shown in FIGS. 3, 4, and 8, the roof support beam 4 has a lower fixing piece 26 at its lower end and an upper fixing piece 2 at its upper end.
7, and a tapered portion 28 whose width increases upward is formed at the upper end. The tapered portion 28 includes inclined pieces 43 and 44 that extend upward and slope outward from the edge of the receiving piece 42 provided on the upper surface of the base 41 made of a square steel pipe, which faces the eaves and ridge. 43 and 44 are connected using a rim 45, and by making the inclined piece 43 provided at the edge of the eave side short, the flat plate-shaped upper fixing piece 27 fixed to the upper surface of the inclined piece 43 is fixed to the roof. It slopes at the same slope as R.

Further, the lower fixing piece 26 is integrally welded to the lower end of the base portion 41 via a receiving piece 46 and a cross-shaped leg portion 47.

Furthermore, the upper fixing piece 27 of the roof support pillar 4 is bolted to the lower surface of the connection part T of the roof beam B. In addition, in bolting, bolts may be used to connect the lower flanges of the eaves beam piece 6 and the ridge beam piece 7 and the joint fitting 20. Also, lower fixing piece 26
is bolted onto a beam N extending between the beams M passing through the outer wall of the main body A of the house.

As a result, the roof support pillar 4 is provided below the vertical member 12 on the ridge side and almost in a straight line, so that
External forces due to wind and rain that act on the roof structure C,
It can be transmitted to the roof supports 4 via the roof beams B, and the mounting strength of the roof structure C can be improved.

Further, as shown in FIGS. 16 and 17, the circumferential side surfaces of the roof structure C, including both sides, the front surface of the eaves side, and the rear surface of the ridge side, are closed using panels P1 and P2.

The panel P1 arranged on the side surface has the above-mentioned upper and lower side joint materials 1 on the inward surface of a substrate 49 made of lightweight concrete, which has a decorative finish on the outward surface.
A projecting piece 50 is provided to be bolted to the panel mounting pieces 24, 24 of No. 3, and the projecting piece 50 is formed using the other wing piece of an angle member having a wing piece fixed to the base body 49. be done.

Also, the panel P2 that closes the front and rear sides is provided with a front joint material 14 and a rear joint material 15 on the same substrate 51 at the top and bottom.
A similar projecting piece 52 is provided which is fixed to the panel mounting pieces 24, 24 of.

Further, the upper surface of the frame body J forms the skylight W by providing a frame body 53 which is fitted onto the upper ends of the panels P1 and P2 and has a translucent plate 54 watertightly fitted into the internal opening. Accordingly, the roof structure C is
The upper surface and the circumferential surface form a closed box shape, and the inside communicates with the inside of the house H through the space between the roof beams B, B. Note that, except for the inside of the roof structure C, the roof assembly is appropriately covered with a roof.

Further, by providing a duct D on the roof structure C, the roof structure C functions as a ventilation device. The duct D includes vertical members 12, 12 on the ridge side.
A vertical cylindrical portion D1 held by a support plate 55 spanning between, and a side protruding cylindrical portion D2 bent outward at its lower end.
It consists of.

The vertical cylindrical portion D1 is provided with a vent 29 at its upper end that opens above the inside of the roof structure C. The vent 29 also includes a cover plate 29A that covers the vent 29 with a gap, and an appropriate water return piece 29 that is attached to the inside.
A drainer 29C having B is provided. Further, the side protruding tube portion D2 passes through the rear surface toward the ridge side of the roof R, and its outer end protrudes to the outside,
At its outer end, a vent 30 is provided which opens downward on the ridge side and communicates with the outside air. In addition, the ventilation hole 30
An insect screen will be installed.

By opening the vent 30 on the ridge side in this manner, the vent 30 is hidden from view and the appearance of the house is enhanced. Further, since the duct D is formed in an L-shape consisting of the vertical cylindrical portion D1 and the side projecting cylindrical portion D2, wind and rain are blocked and rainwater is prevented from entering.

As shown in FIGS. 6 and 7, the support piece 5A of the roof column 2A forming the roof frame F2 is connected to the beam connecting piece 19A on the side where the roof beam bodies EA and EA face each other.
is formed using a relatively long H-shaped member whose flange is inclined to match the slope of the roof R, and the support piece 5A is
The column joint part 9 on the upper surface of is omitted. Also, roof beam bodies EA, connecting beams S1A, S2A, S3 connecting between EA
A is twice the size of the connecting beams S1, S2, and S3, and
The roof frame structure F2 is formed in substantially the same manner as the roof frame structure F1. Note that the beam connecting piece 19B of the support piece 5A facing the balcony K is used to connect the joint beam Q5 forming the handrail between the pillar U of the handrail erected at the corner of the balcony K.

〔Effect of the invention〕

As described above, in the roof construction method of the present invention, a roof frame structure in which roof beams are connected by joint beams is erected on the beams of the main body of the house, and such a roof frame structure is lifted by a crane or the like. By installing it, it is possible to improve the efficiency of building construction work, shorten crane work time, and reduce construction costs. Additionally, the roof frame structure can be assembled on the ground, thus reducing work at heights and increasing work safety. In addition, the roof beam body is a combination of a roof column with an slanted eave beam piece attached to the upper end of the support piece and a doglegged beam, so there are few connection points, and the weight of the roof column and doglegged beam is equal. In addition to increasing the efficiency of ground work, by pre-bonding the support piece and the eaves piece together, the strength of the intersection where bending loads are applied is increased, creating a strong house frame. It can have many effects such as

[Brief explanation of drawings]

FIG. 1 is a perspective view illustrating a house to which the method of the present invention can be applied, FIG. 2 is a perspective view schematically showing the frame members of the house in FIG. 1, and FIG. Perspective view illustrating a wet roof frame structure, No. 4
The figure is an exploded perspective view of the same, FIG. 5 a is a front view illustrating a roof column having support pieces, FIG. 5 b is a plan view thereof, FIG. 5 c is a side view thereof, and FIG. 5 d is a column joint part. FIG. 5e is a perspective view illustrating the - of FIG. 5c.
Line sectional view, Figure 5 f is - line sectional view, Figure 5 g
6 is a perspective view illustrating another roof frame structure, and FIG. 7a is an example of a roof column of a roof beam body forming the roof frame structure of FIG. 6. A front view, FIG. 7b is a plan view thereof, FIG. 7c is a side view thereof, FIG. 7d is a sectional view taken along the - line of FIG. 7c,
Figure 7e is a - line sectional view, Figure 7f is Figure 7a
8 is a sectional view showing the assembled state, FIG. 9 is a perspective view illustrating the frame of the roof structure used in the method of the present invention, and FIG. 10a is a vertical view of the eave side. 10b is a plan view thereof, FIG. 10c is a side view thereof, FIG. 11a is a front view illustrating a vertical member on the ridge side, FIG. 11b is a plan view thereof, Fig. 11c is a side view thereof, Fig. 12 is a partially cutaway front view illustrating the side joint material, and Fig. 13
The figure is a partially cutaway front view illustrating the front and successor material, Figure 14 is a front view showing the state of connection between the column joint part and the cross part, Figure 15 is its sectional view, and Figure 16 is the top of the roof. A cross-sectional view illustrating the structure, and FIG. 17 is a cross-sectional view taken along the - line. 2,2A...roof pillar, 3,3A...dog-shaped beam,
4... Roof support pillar, 5,5A... Support piece, 6,6A
...Eave beam piece, 7,7A...Purin beam piece, 9...Column joint part, 10...Cross part, 11...Eave side vertical member, 12
... Vertical member on the ridge side, 13 ... Side joint material, 14 ... Front joint material, 15 ... Successor joint material, 17 ... Support piece, 1
8... Angle piece, 18A, 18B... Wing piece, 1
9... Beam connection piece, 20... Fitting piece, 21... Base piece, 22... Projecting piece, 23... Mounting piece, 26...
Lower fixing piece, 27... Upper fixing piece, 28... Taper part, 29, 30... Ventilation hole, A... House body, B
... Roof beam, C ... Roof structure, D ... Duct, D1 ... Vertical cylinder part, D2 ... Side pipe part, E,
EA...Roof beam body, F1, F2...Roof frame structure,
H... House, J... Frame, Q, Q1, Q3, Q
4, Q5... Joint beam, R... Roof, S, S1, S
2, S3, S4... joint beam, T... connection part, W...
...Skylight.

Claims (1)

[Claims] 1. A pair of roof pillars each having a slanted eave beam piece at the upper end of the pillar piece, which are placed opposite each other with the eave beam pieces facing each other, and between the tips of the eave beam pieces, there is a ridge beam piece that slopes on both sides of the ridge. A plurality of parallel roof beam bodies spanned by connecting a dogleg-shaped beam with the tip of the ridge beam piece connected to the tip of the eave joist piece connect the roof beam formed by the eave beam piece and the ridge beam piece. A roof construction method characterized by constructing a roof frame structure integrally connected using joint beams on the upper surface of horizontal beams at the upper end of the main body of the house.