Short-pier shear wall with embedded prestressing force combination oblique supporting member

Abstract

The invention discloses a short-pier shear wall with an embedded prestressing force combination oblique supporting member. The shear wall comprises an upper layer beam, a lower layer beam, a short-pier wall pier and prestressing force combination oblique supporting members; the upper layer beam and the lower layer beam are fixedly connected with the short-pier wall pier in an I shape; two groups of the prestressing force combination oblique supporting member are arranged and located in the short-pier wall pier and presented as a herringbone shape or a V shape, an anchoring end of the prestressing force combination oblique supporting member is connected with the upper layer beam, and a tensioning end of the prestressing force combination oblique supporting member is connected with the lowerlayer beam through an anchoring plate. According to the shear wall, a prestressing force combination oblique supporting member is applied to the shear wall, a novel short-pier shear wall structure isconstructed by using a prestressing force technology and a high-damping material, the constitution is simple, the construction is convenient, the shear wall can be applied to parts with important orhigh-performance demands according to shock-resisting demands of building structures through reasonable constitution and connection, which is conformed to the developing tendency of a novel structuralsystem in high and ultra-high buildings and the demands of earthquake resisting and disaster reducing industries in China, and the shear wall has significant engineering actual meaning and social meaning.

Description

technical field [0001] The invention relates to the technical field of construction engineering, in particular to a short-limb shear wall with built-in prestressed composite diagonal braces. technical background [0002] Shear wall is the core anti-lateral force component in high-rise building structure. A reasonable shear wall system can become a reliable line of defense to resist earthquake action, avoid or reduce earthquake disasters, and its role is very important. The short-leg shear wall is a new type of shear wall proposed in my country for more than 20 years. The common cross-sections are I, T, L, cross, etc. The maximum value of the ratio of the cross-section height to thickness of each leg is greater than 4 but not greater than 8. Compared with ordinary shear walls, because its thickness is equal to that of infill walls, the cross-sectional size is relatively small, which can overcome the unsightly and unfavorable use of exposed beams and exposed columns in traditi...

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Problems solved by technology

[0003] However, the thickness of the short-leg concrete shear wall with ordinary steel bars (hereinafter referred to as the ordinary short-leg wall) is relatively thin, and the dislocation of the diagonal braces will lead to a decrease in the thickness of the outer concrete cover, which is not conducive to the cooperative work of the abdominal steel-concrete , at the same time, the improper application of prestress directly leads to the decrease of the plane stability of the wall

If the diagonal braces are directly crossed, they need to be disconnected, which will lead to difficulties in making connections, prestressed interference, small bearing capacity, and relatively poor seismic performance. Therefore, its engineering application is subject to more restrictions. Technical Regulations for Concrete Structures (JGJ3-2010) (hereinafter referred to as "High Regulations") puts forward strict restrictions on its quantity, applicable height and applicable fortification intensity.

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