A Buckling-Resistant Brace Member of Split Double Rectangular Tube Section

A buckling-resistant support and separate technology, which is applied in the direction of building components, earthquake resistance, building construction, etc., can solve problems such as reduced shear stiffness, increased bending deformation of components, and overall instability of components.

Inactive Publication Date: 2016-08-17
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the stability of the members of the lattice-type buckling-resistant bracing needs to be considered, and the members need to be connected with denser materials. At the same time, due to the connection of materials, the shear stiffness of the peripheral constrained members becomes smaller, and the bending deformation of the members increases. Large, it is easy to cause the overall instability of the component

Method used

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  • A Buckling-Resistant Brace Member of Split Double Rectangular Tube Section
  • A Buckling-Resistant Brace Member of Split Double Rectangular Tube Section
  • A Buckling-Resistant Brace Member of Split Double Rectangular Tube Section

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Embodiment Construction

[0016] Attached below Figure 1~6 , to describe in detail the specific embodiments of the present invention.

[0017] Such as Figure 1~3 As shown, a split-type double-rectangular section buckling-resistant support member includes the following components:

[0018] 1——Inline core components, two in total;

[0019] 2——No bonding material;

[0020] 3—constrained rectangular steel pipes, two in total;

[0021] 4 - Concrete;

[0022] 5——steel web;

[0023] 6—end ribs;

[0024] Such as figure 1 , 4 , 5, the separated double-rectangular tube-section buckling-resistant bracing member is composed of two buckling-resistant bracing limbs connected by steel webs 5; Components are composed of inline core components 1, unbonded materials 2, constrained rectangular steel pipes 3, and inner poured concrete 4;

[0025] Such as Figure 4 , 5 As shown, there are two constrained rectangular steel pipes 3 with the same size, which are composed of cold-formed thin-walled steel directly...

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Abstract

A buckling-restrained supporting member with a separated double-rectangular-tube section is formed by connecting two buckling-restrained supporting branches through a steel web, and each branch is a linear core and rectangular concrete-filled steel tube restrained buckling-restrained supporting member. Long edges of the two branches are disposed in parallel, the biaxially-symmetric i-section separated buckling-restrained supporting member is formed by welding and connection of one steel web, and the steel web is connected with the middles of the long edges of restrained steel tubes by means of seam welding. Linear-section cores of the two branches extend out of peripheral restrained members on end portions, extending plates of the two cores are connected through one rib plate to form an H-shaped section, and bending stiffness of the cores on the end portions is enhanced. By the separated section, inertia moment of the integral section and overall bending stiffness of the buckling-restrained supporting member can be enhanced, and materials can be saved remarkably in design of large-tonnage buckling-restrained supporting members. Supporting end portions and frame members are connected conveniently, and the branches can still give full play to respective energy-dissipating capacity under the action of additional eccentric bending moment.

Description

technical field [0001] The invention relates to a novel anti-buckling energy-dissipating support member, in particular to an anti-buckling support member with a separated double-rectangular tube section, and belongs to the technical field of structural engineering. Background technique [0002] The anti-buckling support member appeared in the 1970s, and generally consists of two parts: the inner core member and the outer restraint member. It is a new type of lateral force-resistant member with excellent energy dissipation and shock absorption effects. Under the action of small earthquakes, the inner core of buckling-resistant support members maintains elasticity, providing sufficient lateral stiffness for the main structure; Under the action, the whole section enters into yield, and its hysteresis curve is full, which can consume the energy input by the earthquake. In the United States, Japan, China Taiwan and other earthquake-prone countries and regions, anti-buckling brac...

Claims

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Application Information

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IPC IPC(8): E04B1/98E04B1/36
Inventor 郭彦林陈航朱博莉窦超张博浩
Owner TSINGHUA UNIV
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