基础滑移隔震房屋的计算研究

STUDY ON THE CALCULATION OF BRICK MASONRY STRUCTURE BASE ISOLATED WITH SLIDING LAYER

本文从理论上对有无线弹性限位装置的刚体和多自由度隔震体系的基底滑移量作出了定性定量分析;从理论上证实了基础滑移隔震多层房屋的地震作用分布不同于传统结构的倒三角形分布,而为“K”型分布;通过滑移隔震体系的足尺试验结果分析,提出了基底最大剪力和最大滑移量的简化公式,及隔震房屋的计算方法.

This paper gives a qualitative and quantitative analysis on base sliding displacement of a rigid body and multi-degree of freedom system in whic hthe base is isolated with sliding layer. It is proved that the distribution of earthquake action on multistorey masonry structure with sliding base isolation is different from that of the traditional one. It appears as a 'K' shape distribution instead of an inverted triangle distribution. Through the analysis of the test result of a full scale model, the simplified formulas for calculating the maximum base shear and sliding displacement of brick masonry structure with sliding base isolation are proposed and thec alculating method on this kind of structure is suggested.