Bent steel truss coupling beam with U-shaped damper and capable of being quickly restored after earthquake

A rapid recovery and damper technology, applied in truss beams, truss structures, earthquake-proof and other directions, can solve problems such as difficult repair and achieve the effect of low repair costs

Pending Publication Date: 2020-02-28
DALIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the span height of the steel truss coupling beam is relatively small, the steel truss coupling beam mainly under...

Method used

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  • Bent steel truss coupling beam with U-shaped damper and capable of being quickly restored after earthquake
  • Bent steel truss coupling beam with U-shaped damper and capable of being quickly restored after earthquake

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Embodiment Construction

[0015] The specific implementation manners of the present invention will be further described below in conjunction with the drawings and technical solutions.

[0016] The invention relates to a curved steel truss connecting beam with a U-shaped damper for quick recovery after an earthquake, which comprises a U-shaped damper, a chord and a corbel.

[0017] Such as figure 1 As shown, the chord includes an upper chord 1 and a lower chord 2, and a U-shaped damper connects the lower chord 2 and the corbel 3; the upper chord 1 and the lower chord 2 of the two chords are kept parallel.

[0018] The U-shaped damper is installed at the connection between the lower chord 2 and the corbel 3. The U-shaped damper includes a U-shaped damper upper cover 4 and a U-shaped damper lower cover 5. The connecting parts are sequentially from top to bottom The upper cover plate 4 of the U-shaped damper, the corbel 3 and the lower chord 2 and the lower cover plate 5 of the U-shaped damper. The upper...

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Abstract

The invention provides a bent steel truss coupling beam with a U-shaped damper and capable of being quickly restored after an earthquake. The bent steel truss coupling beam comprises the U-shaped damper. The bent steel truss coupling beam consumes energy by utilizing the U-shaped damper on the basis of a common steel truss coupling beam. The U-shaped damper comprises a U-shaped upper cover plate,a U-shaped lower cover plate and bolts. The bent steel truss coupling beam is simple in structure, convenient to construct and easy to disassemble. Under a small earthquake, the bent steel truss coupling beam with the U-shaped damper does not generate plastic deformation, is equivalent to the common steel truss coupling beam and provides vertical rigidity for the structure; and under a large earthquake, after the yield load of the U-shaped damper is reached, the damper generates plastic deformation, and therefore energy is consumed. Most energy in the earthquake is consumed by the U-shaped damper. According to the bent steel truss coupling beam with the U-shaped damper and capable of being quickly restored after the earthquake, under the action of the earthquake, the strength is not degraded, damage is avoided, only the U-shaped cover plates of the damper need to be checked and replaced after the earthquake, and the bent steel truss coupling beam has the advantages of being low in post-earthquake repairing cost and capable of being used in time.

Description

technical field [0001] The invention belongs to the technical field of energy dissipation and shock absorption in civil engineering, and in particular relates to a curved steel truss connecting beam with a bending damper for quick recovery after an earthquake. Background technique [0002] The coupling beam is an important seismic energy-dissipating component in the shear wall system and the frame-shear wall system. It can effectively resist the overturning moment by ensuring the force transmission between adjacent wall piers. Reinforced concrete coupling beams are fundamentally restricted in performance due to material factors, so steel structure coupling beams with excellent energy dissipation and ductility properties have been proposed in recent years. On this basis, the steel truss connecting beam not only has the advantages of steel connecting beams, but also has the advantages of saving steel, flexible arrangement of rods, and convenient replacement. When the span hei...

Claims

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Application Information

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IPC IPC(8): E04C3/08E04B1/98E04H9/02
CPCE04B1/98E04C3/08E04H9/021
Inventor 崔瑶邢贺鸣吴天骄
Owner DALIAN UNIV OF TECH
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