装配式框架结构在风荷载作用下的易损性分析  

Vulnerability Analysis of Prefabricated Frame Structure Under Wind Load

作　　者：高楠 柳春光[1,2] GAO Nan;LIU Chunguang(State Key Laboratory of Coastal and offshore Engineering,Dalian University of Technology,Dalian,Liaoning,116024,China;Institute of Earthquake Engineering,Faculty of Infrastructure Engineering,Dalian University of Technology,Dalian,Liaoning,116024,China)

机构地区：[1]大连理工大学海岸与近海工程国家重点实验室,辽宁大连116024 [2]大连理工大学建设工程学部水利工程学院工程抗震研究所,辽宁大连116024

出　　处：《水利与建筑工程学报》2021年第4期150-155,185,共7页Journal of Water Resources and Architectural Engineering

基　　金：国家自然科学基金重点项目(51738007)。

摘　　要：近年来装配式结构因其节能、工业化等优点在我国城市被大力推广,但其在村镇的发展却严重滞后,并且针对该结构抗风性能的研究还很少。为了研究装配式结构在不同水平风荷载作用下的抗风能力,文章以村镇地区为背景并采用理论分析的方法,通过ANSYS建立了一个三层装配式框架结构的有限元模型。以最大层间位移角作为结构抗风性能指标并考虑材料特性的不确定性,然后采用回归分析法对结构进行基于性能的易损性分析,最后绘制出结构在不同破坏状态下的风灾易损性曲线。结果表明,当风速达到一定数值时,结构会发生一定程度的破坏并且会依不同的概率达到相应的性能水准,但该结构整体的抗风性能是满足要求的。In recent years,the prefabricated structure has been vigorously promoted in our cities because of its advantages in energy saving and industrialization,but its development in villages and towns is seriously delayed,and research regards to wind resistance performance is still very few.In order to analyze the wind resistance of the prefabricated structure under different horizontal wind loads,this paper takes the village and town area as the research area,theoretical analysis and ANSYS were adopted to establish a finite element model of 3-storey prefabricated frame structure,the maximum inter-story drift angle is taken as the wind resistance index of the structure and the uncertainty of material properties is also considered.The regression analysis method is used to analyze the vulnerability of the structure based on performance.Finally,the wind disaster vulnerability curves of the structure under various damage states are determined.The results show that when the wind speed reaches a certain value,the structure will be damaged to a certain extent and reach the corresponding performance level with different probabilities,but the wind resistance of the whole structure still meets the requirements.

关 键 词：ANSYS 装配式框架结构 风灾易损性 回归分析法 

分 类 号：TU398[建筑科学—结构工程]