温度和地震共同作用对基础隔震单层柱面网壳结构的影响  

Effects of Foundation-Isolated Single-Layer Reticulated Shells under The Combined Effect of Temperature and Earthquake

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作  者:李思齐 王宁 韩流涛 LI Siqi;WANG Ning;HAN Liutao(College of Civil and Architectural Engineering,North China University of Science and Technology,Tangshan Hebei 063210,China)

机构地区:[1]华北理工大学建筑工程学院,河北唐山063210

出  处:《华北理工大学学报(自然科学版)》2025年第2期47-54,共8页Journal of North China University of Science and Technology:Natural Science Edition

基  金:河北省住房和城乡建设厅建设科技研究指导性计划项目(2024-2061):装配式双向叠合板新型拼缝连接性能试验及理论研究。

摘  要:大跨空间结构由于跨度大,杆件数目众多,杆件与杆件之间约束紧密,因此受到温度影响明显,并且在温度作用下结构内力复杂。为了探究温度与地震共同作用下结构的动力响应情况,应用ABAQUS软件建立单层柱面网壳模型,分析正温度差与负温度差作用下结构采用与不采用隔震措施的动力响应情况。分析表明,对于抗震结构而言,正温度差会使得结构变形和杆件应力增大,对抗震结构较为不利;对于隔震结构而言,温度效应对杆件应力和节点峰值加速度影响较小,但是在负温度差条件下结构的倒塌变形和节点峰值位移略有增大;对于隔震效果而言,正温度差条件会更有利于提升隔震效果。The long-span spatial structure is obviously affected by temperature due to its large span,large number of rods,and tight constraints between the rods,and the complexity of the internal forces of the structure under the action of temperature.In order to investigate the dynamic response of the structure under the synergistic effect of temperature and earthquake,ABAQUS software was applied to establish single-layer cylindrical reticulated shells model,and analyze the dynamic response of the structure with and without seismic isolation measures under the effect of positive and negative temperature difference.The analysis shows that the positive temperature difference will make the structure deformation and the stress of the member increase,which is adverse to the seismic structure.For isolated structures,the temperature effect has little effect on the stress of the member and the peak node acceleration,but the collapse deformation and peak node displacement of the structure increase slightly under the condition of negative temperature difference.For the isolation effect,the positive temperature difference condition is more conducive to improving the isolation effect.

关 键 词:温度效应 大跨空间结构 基础隔震 

分 类 号:TU323.3[建筑科学—结构工程]

 

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