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邢台、海城、唐山等地震中,一些非对称单层厂房的破坏状况,表明了各层屋盖在产生水平变形的同时,还伴生整体转动。为了确切反映地震期间厂房的剪-扭振动,本文提出非对称空间结构力学模型、“串并联多质点系”计算简图及抗震空间分析方法。按照抗震规范修订要求,利用计算机,对420例厂房进行空间分析和单榀排架分析的对比计算,据此给出便于手算的简化方法。
In the earthquakes of Xingtai, Haicheng, and Tangshan, the damage status of some asymmetric single-storey factory buildings indicates that the horizontal deformation of the roofs of each floor also accompanies the overall rotation. In order to accurately reflect the shear-torsional vibration of the building during the earthquake, this paper presents asymmetrical spatial structural mechanics model, a series diagram of “series-parallel multi-particle system” and seismic analysis method. In accordance with the revised seismic code requirements, the use of computers, 420 cases of plant space analysis and comparison of single-rack analysis, based on this to give a handy simplified method.