Prefabricated prestressed short-limb box-shaped thin steel plate shear wall structure and construction method

Abstract

The invention provides an assembled prestressed short-leg box-shaped thin steel plate shear wall structure and a construction method thereof. The shear wall structure is composed of upper and lower steel beams, left and right steel columns, steel plate walls, and prestressed tendons. The steel plate wall consists of at least Consisting of a layer of box-shaped steel plates, the prestressed tendons pass through the prestressed tendon holes on the flange of the box-shaped steel plate and the prestressed tendon holes on the upper and lower steel beams, and are anchored on the upper and lower steel beams to form an assembled prestressed short limb that inhibits buckling Box-shaped thin steel plate shear wall structure. The fabricated prestressed short-limb box-shaped thin steel plate shear wall structure of the present invention has a large height-to-thickness ratio, high initial stiffness and bearing capacity, strong buckling energy dissipation capacity, and low steel consumption under the premise of meeting the strength and stiffness requirements , The present invention does not need welding, is convenient to install, has short construction period and low cost.

Description

technical field [0001] The present invention generally relates to the field of building structure engineering, and mainly relates to a box-shaped thin steel plate shear wall, in particular to an assembled prestressed box-shaped thin steel plate shear wall structure and a construction method for restraining buckling short limbs. Background technique [0002] With the rapid development of my country's economy and the rapid progress of science and technology, prefabricated steel structure buildings have received more and more attention because of their good seismic performance, and are currently widely used in super high-rise buildings. Steel plate shear wall is an important anti-lateral force structural form in the field of construction engineering, which has good ductility and superior energy dissipation capacity. Its core working principle is to allow the steel plate to yield before the steel frame beams and columns under the action of an earthquake, and form a tension band ...

AI Technical Summary

Problems solved by technology

However, the steel plate shear wall is an ultra-long and ultra-wide member, with few stiffeners, poor stability, and difficult to control the deflection; Large amount and improper welding method will cause irreversible wave deformation in the length direction of the weld; and, when the steel plate is thin, due to the small buckling capacity of the thin steel plate shear wall, premature buckling will cause serious out-of-plane deformation , accompanied by a huge noise, which affects the comfort and function of the building. When the steel plate is thick, there is a problem of excessive steel consumption

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