JPH03293446A - Arrangement of lateral reinforced member in lattice beam - Google Patents

Abstract

PURPOSE:To reduce cost, by connecting respecting ends of the adjacent lateral reinforcing members to the same positions of the beam in each lattice point of a lattice beam within the partitioned square area having columns at the four corners and by arranging respective lateral reinforcing members to sequentially form a closed loop within the partitioned area in turns. CONSTITUTION:A lattice beam 1 is placed on a partitioned area C surrounded by columns 3 at the outer periphery. Next, the ends of the adjacent lateral reinforcing member 2 are connected to the upper and lower edges of the same position of the beam in correspondence with respective lattice points (b) positioned in the outer periphery side and these are arranged to close the partitioned area C. Next, lateral reinforcing members 2 are arranged in a closed form in similar manner against the lattice points (c) in the inner periphery side. In the case that the column is located in the center, the lateral reinforcing members may be arranged in the same manner as the lattice points (c) with four lattices in square arrangement as a single unit. In this way, the numbers of lateral reinforcing members can be reduced and the members can be easily fitted.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a method for providing horizontal stiffeners on a lattice beam.

[Conventional technology]

Conventionally, as shown in FIG. 4, when arranging the horizontal stiffeners 2 on the lattice beams 1, the lateral stiffeners 2 are placed on all sides surrounding each lattice point a in the section A where the lattice beams 1 span. The ends of the lateral stiffeners 2 were connected to the lattice beams 1, and the lateral stiffeners received the horizontal load applied to the beams around the lattice points to prevent lateral buckling. .

In addition, as shown in Fig. 5, unit section B surrounded by lattice beams 1
In some cases, the lateral stiffeners 2 were disposed in a cross-like manner, spanning between the beams.

Note that 3 in the figure indicates a pillar.

[Problem to be solved by the invention]

However, when lateral stiffeners are arranged to surround each grid point as described above, a large number of lateral stiffeners are required, which is uneconomical.

In addition, when the horizontal stiffeners are arranged in an intersecting state, there is a problem in that slab anchors occur at the intersections of the horizontal stiffeners and are difficult to stabilize.

Therefore, an object of the present invention is to reduce the number of horizontal stiffeners disposed on the lattice beams, and to use horizontal stiffeners economically.

[Means to solve the problem]

The present invention was made in consideration of the above-mentioned problems, and consists of extending a lattice beam in a section in which columns are arranged on all sides, and connecting a plurality of horizontal stiffeners to each lattice point of the lattice beam. When arranging the lateral stiffeners, the ends of adjacent lateral stiffeners are connected to the lattice beam at the same point, and the plurality of lateral stiffeners are arranged in a closed arrangement around the section. The object of the present invention is to provide a method for arranging lateral stiffeners in a lattice beam, characterized in that the above-mentioned problems are solved.

[For production]

In a section with pillars on all sides and lattice beams spanning across, the lateral stiffeners corresponding to the lattice points on the sides of the section are continuously connected, and this continuous integrated lateral stiffener With wood,
A horizontal load is applied to the beams around each lattice point lined up along this side.

Then, the lateral stiffeners are continuously connected to the lattice points arranged on the inner side of the lattice points arranged on the side side, and, in the same way as above, receive the horizontal load applied to the beam around each inner lattice point. By repeating this, the lateral stiffeners continuously circulate within the compartment and support the frame by receiving the horizontal load applied to the beam.

〔Example〕

Next, the present invention will be explained in detail based on explanatory diagrams shown in FIGS. 1 to 3.

Figure 1 shows a column 3 placed around the outer circumference of a 4x4 span.
An example is shown in which the lattice beam 1 is placed in a section C surrounded by a section C.

Then, the lateral stiffeners 2 are disposed in a closed arrangement around the section C, corresponding to each grid point located on the outermost circumferential side within the section C. Further, a lateral stiffener 2 is also provided for the lattice point C located on the inner circumferential side,
This is also arranged in a closed array.

In Figure 2, pillars 3 are placed on the outer periphery of a 4x4 span, and a pillar 3 is also placed in the center, and lattice beams 1 are placed in four sections D (dividing section C into four) surrounded by these columns 3. The rack shows an example of being handed over. In this example as well, the lateral stiffener 2 is located at the lattice point d
They are arranged in a closed array around the compartment.

Each lateral stiffener 2 has adjacent ends connected to the lattice beam 1 at the same position on the lattice beam 1, that is, one end is connected to the upper end 10 of the H-shaped steel beam forming the lattice beam 1. Then, the end of the other lateral stiffener is connected to the lower end 11 of the H-shaped steel beam, and the adjacent lateral stiffeners 2 are connected in a cane-like manner via the lattice beam 1, and the lateral stiffener goes around the section. The entire material 2 becomes continuous.

Each array of lateral stiffeners 2 that are continuously integrated and closed in this way is provided to receive the horizontal load applied to the beams around each grid point.

Note that the O mark of the horizontal stiffener 2 shown in the figure indicates the end portion that is connected to the upper end of the beam. Further, any steel material can be used for the lateral stiffener 2, and for example, a square pipe, a round pipe (C steel), and an H steel can be selected as appropriate.

〔Effect of the invention〕

As explained above, according to the present invention, when a lattice beam is spanned in a section in which columns are arranged on all sides, and a plurality of horizontal stiffeners are arranged corresponding to each lattice point of the lattice beam, , the ends of adjacent horizontal stiffeners are connected to the lattice beam at the same point, and the plurality of horizontal stiffeners are arranged in a closed arrangement so as to circulate within the section. Compared to the conventional installation of lateral stiffeners, the number of lateral stiffeners is reduced, and the installation of the lateral stiffeners is simplified, resulting in excellent practical effects.

[Brief explanation of drawings]

Figure 1 is an explanatory diagram showing an example of arranging lateral stiffeners in 4x4 span sections in the method for arranging lateral stiffeners in a lattice beam according to the present invention, and Fig. 2 is an explanatory diagram showing an example of arranging lateral stiffeners in 4x4 span sections. An explanatory diagram showing an example of arrangement in a compartment, Fig. 3 is an explanatory diagram showing the main part, Fig. 4
FIG. 5 and FIG. 5 are explanatory diagrams showing a conventional example. 1...Lattice beam 2...Horizontal stiffener 3...Column ward ■- ward q

Claims (1)

[Claims] When a lattice beam is laid across a section in which columns are arranged on all sides, and a plurality of lateral stiffeners are arranged corresponding to each lattice point of the lattice beam, adjacent lateral stiffeners are A lattice beam characterized in that each end of the rigid material is connected to the lattice beam at the same point, and the plurality of horizontal stiffeners are arranged in a closed arrangement so as to circulate within the section. How to place lateral stiffeners in.