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多层砖房的延性差,抗剪抗拉强度低,承受水平地震力的能力弱,地震时易于开裂,其破坏率较高。在多层砖房砌体内设置钢筋混凝土构造柱是有效的抗震措施之一。目前在地震区抗震设计中应用较为普遍。但是钢筋混凝土构造柱在设计和施工中尚存在以下问题: 1.墙体内构造柱系先砌筑墙体后浇灌混凝土,墙体砌筑凹凸歪斜。外露构造柱支模不牢,跑模严重,使构造柱几何尺寸偏差过
Multi-story brick houses have poor ductility, low shear and tensile strength, weak ability to withstand horizontal seismic forces, and are prone to cracking during earthquakes, resulting in higher destruction rates. It is one of the effective anti-seismic measures to install reinforced concrete structural columns in the masonry of a multi-story brick house. Currently it is widely used in seismic design of seismic regions. However, the following problems still exist in the design and construction of reinforced concrete structural columns: 1. The structural columns in the wall are first casted with concrete walls, then the concrete is poured, and the walls are built with concaves and convexes. The exposed structural pillars are not rigid and the running dies are severe, causing structural column geometry deviations.