多层住宅新型复合结构空间动力性能分析

THE SPATIAL DYNAMICAL PERFORMANCE OF THE NEW COMPOUND STRUCTURE MULTILAYER DWELLING

本文针对用于代替黏土砖住宅结构的新型"人"字支撑复合结构进行了空间动力性能分析,研究了新型复合结构用于多层住宅的抗震性能。首先,采用子空间迭代法计算出该空间结构的前十阶自振周期和振型,得出有支撑的复合结构方向刚度很大,且支撑还提高了复合结构体系的空间整体刚度;然后,对该结构体系采用反应谱方法求出结构在地震作用下的响应,结果表明该实例住宅的薄弱层均为第三层;在多遇地震作用下,梁、柱及支撑在最不利内力组合下的配筋在合理范围内。结果还表明新型复合结构用于多层住宅具有良好的空间动力性能。

The spatial dynamical performance of the new ＂∧＂ brace compound structure which would be used to substitute clay brick residential structure is mainly studied. And the seismic performance of the multilayer dwelling which is adopted new compound struc-ture is also studied. The preceding ten natural frequencies and mode shapes are calculated by the subspace method. The reinforcement of the brace compound orientation is bigger than the frame orientation. The spatial whole reinforcement of the compound structure has been heightened greatly. The response under seismic action of the new compound structure is calculated with the spectrum analysis method. The place of the feeble floor is appeared the third floor. Under the familiar seism,the reinforced dosage of the column and beam and brace are in reason. Under the unusual seism,the maximum interbedded displacement corner are met the finite value of the reinforced concrete frame-shearing wall. The new compound structure which would be used to multilayer dwelling has well spatial dynamical performance.