JPH04124338A - Construction for column/beam joining section - Google Patents

Abstract

PURPOSE:To enhance the rigidity of the beam joining section of a steel pipe column by fitting beam joining metal fittings on the respective side surface sections of the steel column and the beam joining section, and by bolt-joining the metal fittings with a plurality of long bolts penetrating the beam joining section. CONSTITUTION:On the four-side side surface sections of the beam joining section of a column 1, beam joining metal fittings 3 are fitted, and the beam joining metal fittings 3 and beams 2 are welded to each other. Besides, the beam joining metal fittings 3 are formed integrally with fixing sections 3a, connecting sections 3b, and reinforcing sections 3c, and rigidity is enhanced. After that, the beam joining metal fittings 3 fitted on the beam joining section of the column 1 are bolt-joined with a plurality of long bolts 4 on every confronted beam joining metal fittings 3. As a result, the beam joining metal fittings 3 are served also for the reinforcing members of the beam joining section, and the rigidity is remarkably enhanced, and a column interior is not required to be filled up with concrete, and work can be easily executed.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a column-beam joint structure between a column made of a square steel pipe or the like and a steel beam.

[Conventional technology] Generally, square steel pipes are often used as steel columns.

In addition, as a method of joining a steel beam such as an H-beam to this type of column, beam joining hardware is attached to the beam joint part of the steel pipe column using multiple long bolts that penetrate this part horizontally. A so-called long bolt fastening method, in which a steel beam is joined to a metal object by bolting or welding, is sometimes used.

[Problem to be solved by the invention]

Although this type of joining method makes it relatively easy to process the beam joints of steel pipe columns, it is necessary to introduce tension into the bolts, so the columns are filled with concrete to prevent the joints of the steel pipe columns from deforming. It has the disadvantage that it cannot be used unless the rigidity of the column joint is increased by, for example, increasing the rigidity of the column joint.

In addition, even in this case, the work of constructing the steel frame is divided into two parts: before and after concrete pouring, resulting in poor work efficiency.

This invention improves and develops the long bolt fastening type joining method in order to solve the above-mentioned conventional problems.
Pillars and pillars that can be used not only when filled with concrete, but also when not filled with concrete.
The purpose is to provide a beam joint structure.

[Means to solve the problem]

In order to achieve the above object, the column-beam joint structure according to the present invention bolts a beam-joining hardware to the beam joint of a steel pipe column with a plurality of long bolts passing through the beam joint of the steel pipe column. When joining a steel beam to a beam joining hardware, the beam joining hardware is attached to each side of the beam joining part of the steel pipe column, and the ends of adjacent beam joining hardware are butted, and the opposing beam joining hardware is They are each bolted together using the long bolts mentioned above.

〔Example〕

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a description will be given based on an embodiment illustrating a column-beam joint structure according to the present invention.

Figures 1, 2, and 3 show the pillars and
This figure shows the structure of a beam joint. In the figure, number 1 is a column made of square steel pipes, and number 2 is a beam made of H-beam steel.

Beam joint hardware 3.degree. 3 is attached to each side of the beam joint of the column 1, and the beam 2 is joined to the beam joint hardware 3 by welding.

The beam joint hardware 3 has a connecting part 3b protruding approximately horizontally from the center of the fixed part 3a, and reinforcing parts 3c and 3e protruding from the corners of the fixed part 3a and the connecting part 3b. It is integrally formed by casting or the like.

Note that although the reinforcing portion 3c is welded to the web of the beam, the reinforcing portion 3e may be omitted.

The fixing portion 3a is formed into a horizontally elongated rectangular plate shape having approximately the same dimensions as the diameter of the column 1.

Further, a plurality of attachment holes 3d are formed in the fixing portion 3a.

The connecting portion 3b is formed into a trapezoidal plate shape, and is provided to protrude approximately horizontally from the approximately central portion of the fixing portion 3a.

The reinforcing portions 3c and 3e are provided at the corners of the fixed portion 3a and the connecting portion 3b so as to protrude substantially perpendicularly to the fixed portion 3a and the connecting portion 3b.

Note that the plate thicknesses of the fixed portion 3a, the connecting portion 3b, and the reinforcing portions 3c and 3e are determined as appropriate depending on the magnitude of the external force acting on the column-beam joint.

The beam joint hardware 3 formed in this manner is attached to the four side surfaces of the beam joint of the column 1 corresponding to the levels of the upper and lower flanges 2a, 2a of the beam 2, and each beam joint hardware 3 Both left and right end portions of the fixing portion 3a are butted against the end portions of the fixing portion 3a of the adjacent beam joining hardware 3, and are integrally welded if necessary.

Therefore, the beam joint part of the column 1 is the fixed part 3 of the beam joint fitting 3.
a, the connecting portion 3b, and the reinforcing portion 3c are reinforced to prevent deformation in the radial direction, and the rigidity is significantly increased.

The beam joint hardware 3.3 attached to the beam joint of column 1 is
For each opposing beam joint hardware 3, 3, the mounting holes 3d, 3 of the opposing flanges la, la of the column 1 and the fixing parts 3a, 3a.
d is integrally fixed by bolting with a plurality of long ports 4, 4 passing through substantially horizontally.

Of the long bolts 4, 4, the long bolts 4.4 that are perpendicular to each other are installed so as to be shifted in two stages, upper and lower, so as not to collide with each other.

Note that the diameter and number of the long bolts 4, 4 are appropriately determined depending on the magnitude of external force acting on the column-beam joint.

Also, add concrete 5 to the beam joints in column 1 as necessary.
If filled with , the rigidity can be further increased.

Furthermore, in the embodiment, a beam 2 is attached to each side of the beam joint of the column 1.
Although we have explained the case of joining the beam 2, if the beam joining metal fitting 3 that does not join the beam 2 is used simply as a reinforcing member, the beam 2 can be joined.
, 2 to two opposing side surfaces (Fig. 4,
(see FIGS. 6 and 7), and can also be used when joining two adjacent side parts (see FIGS. 5, 6, and 7).

In such a case, the beam joint hardware 3 may be configured such that the fixed portion 3a is made smaller.
It is possible to make it even more minor.

Moreover, it can also be used when a circular steel pipe is used for the column 1.

In addition, when using a circular steel pipe for the column 1, it is necessary to form the fixing part 3a of the beam joint hardware 3 into a concave curved plate shape so as to be in close contact with the side surface of the column I (not shown).

(Effects of the Invention) Since the present invention has the above configuration, it has the following effects.

Since the beam joint hardware also serves as a reinforcing material for the beam joint of the steel pipe column, the rigidity of the beam joint is significantly increased.

Therefore, it is possible to connect using long bolts without intentionally increasing the rigidity of the joint by, for example, filling the columns with concrete.

Furthermore, since there is no need to fill the building with concrete, construction is easy, and the long bolts can be tightened at the same time as the steel frame is being erected, streamlining construction.

[Brief explanation of drawings]

Figures 1, 2 and 3 show one embodiment of the present invention. Figure 1 is a cross-sectional view of the column-beam joint, and Figures 2 and 3 are the same as Figure 1. 4, 5, 6 and 7 show other embodiments of the present invention, and FIGS.・The cross-sectional views of the beam joint, FIGS. 6 and 7, are cross-sectional views taken along the line CC in FIGS. 4 and 5. 1...Column, 2...Beam, 3...Beam joining hardware, 4...
・Naga Porto, 5...Concrete. etsuCtsu

Claims (1)

[Claims] 1) A column-beam joint formed by bolting a beam joint hardware to the beam joint of a steel pipe column using multiple long bolts that pass through the beam joint of the steel pipe column, and joining a steel beam to the beam joint hardware. The structure is such that the beam joining hardware is attached to each side of the beam joint of the steel pipe column, and the ends of the adjacent beam joining hardware are butted, and each opposing beam joining hardware is bolted with the long bolt. A column-beam joint structure characterized by a fixed structure.