A kind of steel-wood hybrid anti-seismic wall with self-resetting function after earthquake

Abstract

The invention relates to a steel and wood hybrid earthquake resistant wall with a post-earthquake self reset function. The steel and wood hybrid earthquake resistant wall is formed by steel beams, steel columns, wood shear walls, post-tensioned unbounded prestressed tendons and friction type dampers, wherein the post-tensioned unbounded prestressed tendons penetrate through the steel beams longitudinally, penetrate through the upper ends of the steel columns and are fixed to the outer sides of the steel columns by using anchors; the friction type dampers are positioned at the upper parts of the wood shear walls and are connected with raising plates of the wood shear walls by adopting bolts. Under small earthquakes, a steel framework and the wood shear walls work together, so that the structure is enabled to have higher lateral stiffness; under middle earthquakes or big earthquakes, a shear force applied to the friction type dampers is greater than a slip shear force of the friction type dampers, friction surfaces of the friction type dampers start to slip to consume energy, and the damage to the wood shear walls can be reduced to a large extent; the post-tensioned unbounded prestressed tendons are always in an elastic tension state, beam column nodes after an earthquake return to an initial state under the action of the post-tensioned unbounded prestressed tendons, the steel beams and the steel columns are basically not damaged, residual deformation of the structure is very small, and the friction type dampers are not damaged under the action of the earthquake and has no need to be replaced after the earthquake.

Description

technical field [0001] The invention relates to the field of construction engineering, in particular to a steel-wood hybrid anti-seismic wall with post-earthquake self-resetting function for reducing earthquake disasters of engineering structures. Background technique [0002] Earthquakes are sudden, unpredictable, and occur frequently, causing huge losses to human society. my country is one of the countries with frequent land earthquakes, especially the frequent large earthquakes in recent years, which have caused serious earthquake damage to building structures. [0003] The steel-wood hybrid structure has the advantages of environmental protection and high prefabrication ratio. The steel frame structure has high efficiency, and the wood shear wall is light in weight and has high lateral rigidity. Filling the wood shear wall into the steel frame can form a steel-wood structure with excellent structural performance. Hybrid seismic wall system. Moreover, the steel-wood com...

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Problems solved by technology

[0006] The object of the present invention is to provide a steel-wood hybrid anti-seismic wall with post-earthquake self-resetting function for reducing earthquake disasters of engineering structures, so as to reduce earthquake disasters of engineering structures and solve the problem that the existing steel-wood hybrid anti-seismic wall structure is not easy to withstand large earthquakes. For the problem of high repair or repair cost, the present invention can not only fully consume energy and absorb shock under earthquake action through the damper on the upper part of the wooden shear wall, but also can use the characteristics of prestressed tendons to eliminate the residual deformation of the structure under earthquake action , greatly reducing the cost and difficulty of repairing the steel-wood hybrid anti-seismic wall after the earthquake, and realizing the self-resetting function of the steel-wood hybrid anti-seismic wall

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