【摘要】 天津一座七层砖填充墙钢筋混凝土框架结构,按现行抗震规范校核,它经受不了1976年唐山地震,但在那次地震中,这座建筑仅填充墙受到破坏,框架只在部分节点处发生了微小的裂缝。地震时在这座建筑的室内地面和三、五、七层取得了地震记录。为了研究这类建筑的地震反应和砖填充墙的抗震作用,作者利用这些地震记录分析这座建筑的地震反应,并进行了模拟地震试验。试验和计算结果表明,地震时砖填充墙对框架起了两个有利的作用。一是在地震载荷作用的初期,地震载荷主要由填充墙承担,填充墙一旦受到破坏,作用于结构上的地震荷载就显著下降,减轻了框架的负担。填充墙另一作用是它破坏以后能起消能作用,但它在框架内的承载能力没有显著降低。更多还原

【Abstract】 In this paper, the capacity of a 7-story R. C. framed structure with infill walls for resisting earthquake is studied. The building studied is located in Tianjin and suffered the attack of the 1976 Tangshan earthquake. The earthquake records were obtained on the ground level, the 3rd, the 5th, and the 7th floor of the west wing of the building during the earthquake. Using the records obtained on the ground level as input motion, the earthquake simulation test was made on a shaking table and the earthquake responses of the actual structure were calculated. The results of these studies show that the brick infill walls have a great advantage of resisting seismic load and a function of dissipating energy.更多还原