摘要
基于活动性较弱或趋于稳定的地裂缝,以西安地区一个跨越地裂缝的建筑物为研究对象,从西安地区地裂缝的成因、分布入手,采用SAP2000有限元软件对实际工程结构进行线性和非线性分析,将地裂缝的活动量以初始位移的方式施加到不同工况的结构上,定量地分析了地裂缝的活动对跨于其上结构的不利影响,找出了该跨地裂缝结构的危险部位,给出了结构出现塑性铰的时间、位置和数量;最后结合分析的结果,提出了防治措施。
Based on weakly active or nearly stable ground fissure,a building striding over ground fissure in Xi＇an was researched.From the cause and distribution of ground fissure,failure mechanism,destroy mode and preventive countermeasures were studied.Finite element software SAP2000 was used to research the structure by linear static and nonlinear static analysis.Initial displacement which imitated the value of ground fissure activity was applied to the structure,and quantitative analysis had been conducted in adverse effect of ground fissure activity on the structure.Dangerous location of the structure,the time,position and amount of plastic hinges were found out.Based on the analysis results,preventive countermeasures were proposed.
出处
《建筑结构》
CSCD
北大核心
2011年第10期79-83,共5页
Building Structure
关键词
地裂缝
破坏机理
工况模拟
防治对策
ground fissure
failure mechanism
simulated condition
preventive countermeasure
