考虑空间作用时单层厂房纵向抗震简化计算

单层厂房的纵向抗震计算,以往多采用屋盖为绝对刚性或绝对柔性的假定。本文根据实测数据和震害规律,提出考虑屋盖变形以及纵墙有效刚度的空间计算模型,并利用计算机对不同类型厂房的大量分析结果,给出便于手算的适用于有檩、无檩屋盖厂房的“柱列法”和“总刚度法”。

Simplified Method of Analysing Single-Story Mill Buildings Under Longitudinal Seismic Action

For single-story mill buildings, the current design practices in the analysis of longitudinal earthquake reponses either completely ignore the stiffness of the roofing system or treat it as an absolutely rigid diaphragm. In this paper, according to the experimental datas and conclusions drawn from earthqnake damage surveys,a spatial structural analyzing model in consideration of the deformability of the roofings and the effective stiffness of the longitudinal walls is established. With the aid of computer, a number of different mill-type buildings have been analysed and the results studied. Based on these data of spatial structural analysis, a simplified method of analysing single-story mill buildings under longitudinal seismic action is proposed and the calculation can be done with hand computation.