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Shearing type steel truss connection beam with friction damper for quick recovery after earthquake

A friction damper and rapid recovery technology, which is applied to truss beams, truss structures, shockproof, etc., can solve problems such as difficult repairs and achieve low repair costs

Pending Publication Date: 2019-09-06
DALIAN UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The steel truss connecting beam mainly dissipates the seismic energy through plastic deformation, which plays a role in reducing the seismic energy to a certain extent; but because these deformations are irreversible, it is difficult to repair after the earthquake

Method used

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  • Shearing type steel truss connection beam with friction damper for quick recovery after earthquake
  • Shearing type steel truss connection beam with friction damper for quick recovery after earthquake
  • Shearing type steel truss connection beam with friction damper for quick recovery after earthquake

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Embodiment Construction

[0021] The specific implementation manners of the present invention will be further described below in conjunction with the drawings and technical solutions.

[0022] The invention discloses a fast recovery shear steel truss connecting beam with a friction damper after an earthquake, comprising a friction damper, a chord 1 and a diagonal web.

[0023] Such as figure 1 As shown, the diagonal rod includes the diagonal rod A2 and the diagonal rod B7, and the friction damper connects the diagonal rod A2 and the diagonal rod B7 to form a diagonal rod; the two diagonal rods are cross-fixed Between the two chords 1, the two chords 1 are kept parallel; the upper ends of the two oblique webs A2 are respectively welded to the upper chord 1, and the lower ends of the two oblique webs B7 are respectively welded to the lower chord 1 on.

[0024] The friction damper is installed at the web at the bottom of the diagonal web bar A2, and the friction damper includes a friction main board 3, ...

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Abstract

The invention provides a shearing type steel truss connection beam with a friction damper for quick recovery after an earthquake. The shearing type steel truss connection beam comprises chord rods, diagonal web members and a friction damper. On the basis of a common steel truss connection beam, the friction damper is used for consuming energy, and comprises a friction main plate, a friction piece,a cover plate and friction-type bolts; the structure is simple, and construction is easy. Under a small earthquake, the shearing type steel truss connection beam with the friction damper does not slip, and is equivalent to the common steel truss connection beam, and lateral rigidity is provided for the structure; and under an medium earthquake, after reaching a starting-sliding load, the frictiondamper slips, the energy is consumed by friction, and most of the energy in the earthquake is consumed by the friction damper. According to the shearing type steel truss connection beam with the friction damper for the quick recovery after the earthquake, under the function of the earthquake, strength does not degrade, damage does not occur, the friction piece of the friction damper only needs checking and replacing after the earthquake, the shearing type steel truss connection beam has the advantages of low costs and timely use after the earthquake.

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 shear-shaped steel truss connecting beam with a friction 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 s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04C3/04E04B1/98E04H9/02
CPCE04C3/04E04H9/02
Inventor 崔瑶吴天骄王鑫
Owner DALIAN UNIV OF TECH
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