| 地下空间结构对邻近地上结构地震反应影响振动台实验 |
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| 引用本文： | 程业,潘旦光,陈清军,付相球,李雪菊.地下空间结构对邻近地上结构地震反应影响振动台实验[J].工程力学,2022,39(1):91-99. |
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| 作者姓名： | 程业 潘旦光 陈清军 付相球 李雪菊 |
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| 作者单位： | 1.北京科技大学土木系，北京 100083 |
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| 基金项目： | 土木工程防灾国家重点实验室开放基金项目(SLDRCE15-01) |
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| 摘 要： | 大型地下空间结构影响地震波的传播使邻近地震动场发生变化.为研究地上结构地震响应受地下空间结构的影响程度,设计并开展了地下结构-土-地上结构体系(SSSI)和土-地上结构体系(SSI)振动台模型实验,对比研究了在6条不同卓越频率输入地震波下地上结构地震反应的变化规律.实验研究结果表明:地下空间结构影响邻近场地的动力特性,...
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| 关 键 词： | 振动台实验 地下结构-土-地上结构相互作用 场地反应 加速度放大系数 傅里叶谱 |
| 收稿时间： | 2020-12-07 |
SHAKING TABLE TEST ON THE INFLUENCE OF UNDERGROUND SPACE STRUCTURE ON THE SEISMIC RESPONSE OF ADJACENT SUPERSTRUCTURE |
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| CHENG Ye,PAN Dan-guang,CHEN Qing-jun,FU Xiang-qiu,LI Xue-ju.SHAKING TABLE TEST ON THE INFLUENCE OF UNDERGROUND SPACE STRUCTURE ON THE SEISMIC RESPONSE OF ADJACENT SUPERSTRUCTURE[J].Engineering Mechanics,2022,39(1):91-99. |
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| Authors: | CHENG Ye PAN Dan-guang CHEN Qing-jun FU Xiang-qiu LI Xue-ju |
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| Affiliation: | 1.Department of Civil Engineering, University of Science and Technology Beijing, Beijing 100083, China2.Beijing Key Laboratory of Urban Underground Space Engineering, University of Science and Technology Beijing, Beijing 100083, China3.State Key Laboratory for Disaster Reduction in Civil Engineering, Tongji University, Shanghai 200092, China |
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| Abstract: | The large underground space structure affects the propagation of seismic wave and changes the adjacent seismic field. In order to study the influence of underground space structure on seismic response of superstructures, the shaking table tests on the underground structure-soil-surface structure (SSSI) system and the soil-surface structure (SSI) system were designed and carried out. The seismic responses of the superstructure under six different dominant frequency input seismic waves were comparatively studied. The results show that the underground space structure affects the dynamic characteristics of adjacent sites, and then affects the dynamic characteristics of adjacent structures. As a result, the ground structure frequency and site fundamental frequency of SSSI system are less than those of SSI system. The underground space structure enhances the motion interaction, which leads to the rocking motion of SSSI system being larger than that of SSI system. The peak values of translational acceleration, rocking acceleration and structural deformation acceleration of SSSI system are not synchronous. The maximum deformation response of SSSI system is 1.267 times of that of SSI system. |
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| Keywords: | shaking table test underground structure-soil-surface structure interaction site reaction acceleration amplification factor Fourier spectrum |
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