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冲断层作用下近场框架结构群的地震响应 被引量：2

Earthquake Responses of Near-field Frame Structure Cluster due to Thrust Fault
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摘要 目的研究考虑地球介质黏弹性的冲断层作用下近场框架结构群中各结构的梁端弯矩和柱中剪力时程响应.方法通过建立三类被研究块体的控制方程,给出断层破裂过程中地震波在黏弹性地球介质和近场框架结构群中传播的数值模拟方法.运用该方法,考虑地球介质的黏弹性衰减和盆地的影响研究近断层框架结构群的地震响应.结果给出了冲断层作用下城市结构群中框架结构的梁端弯矩和柱中剪力时程响应.结构群中结构的梁端弯矩和柱子剪力增大主要原因是结构与其所在场地的共振.位于破裂前方与震中之间的结构群作逆时针方向运动.结论笔者为近断层城市建筑结构群地震响应研究提供了一种定量分析方法. A method for studying seismic responses of near-fault structure cluster is developed by considering frame structure cluster ,half-space viscoelastic earth medium and causative fault simultaneously. By using the proposed method, we study the seismic responses of frame structure clusters during a Mw 6. 0 hypothetical earthquake. The results show that large beam-end bending moment and column shear of the structure in structure cluster mainly results from the resonance between the structure and the site of the structure. The sla-ucture cluster located between epicenter and rupture forward is in anticlockwise motion due to thrust fault. The proposed method can give the internal forces in structure as well as deformation patterns of structure cluster during an earthquake. The presented method provides an effective tool for studying earthquake re- sponses of structure clusters in city near fault.
作者 钟伟 刘铁林
机构地区 大连理工大学土木工程学院 重庆电子工程职业学院 沈阳建筑大学土木工程学院
出处 《沈阳建筑大学学报（自然科学版）》 CAS 北大核心 2013年第6期989-997,共9页 Journal of Shenyang Jianzhu University：Natural Science
基金 国家自然科学基金项目(10972144)
关键词 地震响应 框架结构群 近断层 黏弹性 被研究块体 earthquake response frame structure cluster near fault viscoelasticity investigated lump
分类号 TU435 [建筑科学—岩土工程] TU311.3 [建筑科学—结构工程]
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参考文献16

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同被引文献24

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沈阳建筑大学学报（自然科学版）
2013年 第6期

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