JPS60242247A - Land beam by lattice beam - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] The present invention can minimize the space under the ceiling regardless of the height of the beam without reducing strength, and prevents the back of the beam from hitting the sloped surface of the roof near the girder. The present invention relates to a land beam using a lattice beam that can be made as follows.

When fixing a land beam to a general house, it is necessary to prevent the top chord from hitting the roof slope surface near the girder. A binary format is adopted. That is, one of them is to fix the land beam as a whole below the Saint's end surface by making the beam back of the Land beam in the direction of the roof assembly and approximately coincident with the Saint's end surface, without performing any processing on the Land beam. The other method is to cut and remove the upper end of the land beam that corresponds to the roof slope surface, etc. to match the roof slope surface, and to make the back of the land beam facing the direction of the roof frame and further than the Saint end face. '' is placed on two sides and fixes the land beam as a whole upward.

However, in the former fixing mode, the ceiling gap from the ceiling board placed below the land beam to the end face of the saint becomes larger, and the space under the ceiling becomes larger, which causes a problem of sacrificing indoor space. . On the other hand, in the latter fixing mode, the problem of the former does not occur, but cutting and removing the upper end of the land beam causes a decrease in shearing force at the end of the land beam (problem).

In addition, in pigeon coops with large spans of land beams and wooden land beams, they must be made of laminated wood or the like, which makes them very expensive and poses an economical problem.

Furthermore, although lattice beams have rarely been used as land beams in general houses, even if ordinary lattice beams were used as land beams, the space under the ceiling would become large and the interior space would be sacrificed. This can cause problems.

The present invention was developed in view of the second point, and it is possible to minimize the space under the ceiling regardless of the height of the beam without reducing the strength, and also to reduce the space on the roof slope near the girder. To provide a land beam made of a lattice beam that can prevent the back of the beam from touching and can economically correspond to a large span.

That is, in the land beam using the lattice beam of the present invention, the upper chord member of the lattice beam is made shorter than the lower chord member, and the end of the upper chord member and the end of the lower chord member are integrally connected via the diagonal member. Then,
The diagonal members are fixed as land beams in accordance with the roof slope.

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the land beam of the present invention shown in the drawings will be described below.

In Fig. 1, 1 is an upper chord member made of a steel profile, 2 is a lower chord member made of a steel profile, and the upper chord member 1 and the lower chord member 2 are connected through a web member 3, similar to a conventional lattice beam. It is fixed as one piece.

Therefore, in the land beam A of the present invention, the upper chord member 1 is formed shorter than the lower chord member 2, and the end of the upper chord member 1 and the lower chord member 2
are integrally connected to the end portions thereof via an upwardly directed diagonal member 4.

In the case of the embodiment, the upper chord member 1 and the diagonal member 4 are formed from a single steel section, and each time a certain length portion on both sides of this section is bent diagonally downward, the section is bent. with and without diagonal members 4. The diagonal member 4 and the lower chord member 2 are fixed together by welding.

Further, the diagonal member 4 may be independent, and its both ends may be integrally fixed to the upper chord member 1 and the lower chord member 2, respectively.

Further, the inclination angle of the diagonal member 4 is formed to approximately correspond to the roof slope of the location where the land beam A of the present invention is fixed.

In addition, in FIG. 1, reference numeral 5 denotes fixing parts provided at both ends of the land beam A for fixing the land beam A of the present invention.

When the land beam A of the present invention having the above-mentioned configuration is used, it is fixed to the girder side wall etc. via the beam bracket as shown in FIG. 2, like the conventional land beam. As shown in FIG. 3, the lower chord member 2 can be positioned at the height of the top of the wall 6, and the diagonal member 4 can be fixed close to the roof 7 near the girder. If the land beam A of the present invention is fixed in this way, the distance from the top surface of the wall 6 to the ceiling board 8, as shown in FIG.
The ceiling pocket can be made smaller, and the loss of interior space can be minimized. Moreover, at this time, since the land beam A of the present invention has the diagonal members 4 as described above, there is no shortage of shearing force at the ends, and sufficient strength can be maintained as a land beam.

Then, the upper chord member 1 of the land beam A of the present invention fixed as described above
Usually, as shown in FIG. 2, a wooden binding material 9 is appropriately fixed to the roof, a roof frame similar to the conventional one is formed on this binding material 9, and a roof (roof panel) 7 is fixed.

In Fig. 2, 10 is a bundle, 11 is a slope girder, 12 is a main building, 13 is a ridge beam, 14 is a joint girder, 15 is a corner beam, and 16 is a flint beam.

As described above, the land beam using the lattice beam of the present invention is one in which the ends of the upper chord members and the ends of the lower chord members are integrally connected via an upward diagonal member, and the upper chord members are connected to the roof slope surface or Because the diagonal members can be fixed close to the roof slope near the corresponding girder without touching the rafters, the space above the ceiling can be kept to a minimum regardless of the height of the beam. In addition, the diagonal members can maintain sufficient strength as a lattice beam, and unlike conventional land beams, it can economically support large spans, and the beam is fixed with the back facing upward. Therefore, the volume of the roof frame materials, especially the bundles, can be reduced.Furthermore, unlike wooden beams, the shape and dimensions of the beam brackets can be unified regardless of the beam height because the beams are lattice beams. It has great effects, such as being able to

[Brief explanation of the drawing]

FIG. 1 is a front view of an embodiment of the present invention, FIG. 2 is a perspective view showing its mode of use, and FIG. 3 is a front view of the main parts of FIG. 2. A... Land beam 1... Upper chord member 2... Lower chord member 4... Oblique patent applicant Misawa Homes Co., Ltd.

Claims (1)

[Claims] The upper chord member of the lattice beam is made shorter than the lower chord member, and the end of the upper chord member and the end of the lower chord member are integrally connected via a diagonal member, and the diagonal member is adjusted to correspond to the roof slope. A land beam made of lattice beams, which is characterized by being fixed as a land beam.