JP2926146B2 - Arrangement method of lateral stiffener in lattice beam - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a method of arranging a lateral stiffener when a lateral stiffener is provided on a lattice beam.

[Conventional technology]

Conventionally, as shown in FIG. 4, when the lateral stiffener 2 is disposed on the lattice beam 1, each lattice point a in the section A where the lattice beam 1 is bridged is surrounded by four sides. Placed in
Each end of the lateral stiffener 2 is connected to the lattice beam 1, and the lateral stiffener receives a horizontal load applied to the beam around the lattice point to prevent lateral buckling.

In addition, as shown in FIG. 5, in the unit section B surrounded by the lattice beam 1, the horizontal stiffener 2 may be arranged so as to extend between the beams in a state of crossing in a cross shape.

 In addition, 3 in a figure shows a pillar.

[Problems to be solved by the invention]

However, when the lateral stiffeners are arranged so as to surround each lattice point as described above, many lateral stiffeners are required, which is uneconomical. Further, when the horizontal stiffeners are arranged in an intersecting state, there is a problem that a slab anchor is generated at an intersection of the horizontal stiffeners and it is difficult to reduce the slab anchor.

In view of the above, an object of the present invention is to reduce the number of lateral stiffeners provided on a lattice beam and to use economical lateral stiffeners.

[Means for solving the problem]

The present invention has been made in view of the above problems,
When laying a grid beam in a section where columns are arranged on all sides, and arranging a plurality of horizontal stiffeners corresponding to each grid point of this grid beam, each end of the adjacent horizontal stiffener is Are connected to the lattice beam at the same location, and the plurality of lateral stiffeners are arranged in a closed array so as to go around the section. An object of the present invention is to solve the above-mentioned problem by providing an arrangement method.

(Operation)

In a section with pillars on all sides and grid beams hung,
The lateral stiffeners corresponding to the lattice points arranged on the side of the section are continuously connected, and the continuous stiffeners are continuously integrated, and the beams around each lattice point arranged along the side are Under horizontal load.

Lateral stiffeners are continuously connected to the grid points arranged further inward of the grid points arranged on the side, and the horizontal load applied to the beam around each of the grid points on the inner side is similarly received as described above. By repeating this, the lateral stiffener continuously wraps around the section and receives the horizontal load applied to the beam to support the frame.

〔Example〕

Next, the present invention will be described in detail with reference to the explanatory views shown in FIGS.

FIG. 1 shows an example in which a pillar 3 is arranged on the outer periphery of a 4 × 4 span, and a lattice beam 1 is bridged over a section C surrounded by the pillar 3.

The lateral stiffeners 2 are arranged in a closed array so as to go around the section C, corresponding to each lattice point b located on the outermost peripheral side in the section C. Further, the lateral stiffener 2 is also provided for the lattice point c located on the inner peripheral side, and is also arranged in a closed arrangement.

In FIG. 2, the pillars 3 are arranged on the outer periphery of a 4 × 4 span and the pillars 3 are also arranged at the center, and the lattice beam 1 is divided into four sections D (section C is divided into four) surrounded by these pillars 3. An example is shown. Also in this example, the lateral stiffeners 2 correspond to the lattice points d and are arranged in a closed arrangement so as to go around the section D.

Each lateral stiffener 2 has an adjacent end connected to the lattice beam 1 at the same position of the lattice beam 1, that is, one end is connected to the beam upper end 10 of the H-shaped steel constituting the lattice beam 1. Then, the end of the other lateral stiffener is joined to the beam lower end 11 of the H-section steel, and the adjacent lateral stiffener 2 is continuous with the lattice beam 11 interposed therebetween, and the lateral stiffener surrounding the section is formed. 2 becomes continuous.
In this way, the arrangement of the lateral stiffeners 2 which are continuously integrated and closed is provided so as to receive the horizontal load applied to the beam around each lattice point.

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

〔The invention's effect〕

As described above, according to the present invention, a grid beam is spanned in a section where columns are arranged in four directions, and when arranging a plurality of horizontal stiffeners corresponding to each grid point of the grid beam, ,
Since the ends of the adjacent lateral stiffeners were connected to the lattice beam at the same location, and the plurality of lateral stiffeners were arranged in a closed array so as to go around the compartment, Therefore, the number of the horizontal stiffeners is reduced as compared with the mounting of the horizontal stiffeners, and the mounting of the horizontal stiffeners is simplified.

[Brief description of the drawings]

FIG. 1 is an explanatory view showing an example of arranging a lateral stiffener in a 4 × 4 span section in the method of arranging a lateral stiffener in a lattice beam according to the present invention, and FIG. 2 is similarly divided into four parts. FIG. 3 is an explanatory view showing an example of arrangement in a section, FIG.
FIG. 5 and FIG. 5 are explanatory views showing a conventional example. 1 ... lattice beam 2 ... horizontal stiffener 3 ... column

Claims (1)

(57) [Claims] When a plurality of lateral stiffeners are arranged in a section where pillars are arranged on all sides and a plurality of lateral stiffeners are arranged corresponding to respective lattice points of the lattice beams, adjacent lateral stiffeners are provided. Each of the ends of the material is connected to the lattice beam at the same location, and the plurality of lateral stiffeners are arranged in a closed array so as to go around the compartment. How to arrange horizontal stiffeners.