黄土地区地上两层地铁车站抗震性能振动台试验

兰州理工大学学报 ›› 2020, Vol. 46 ›› Issue (2): 127-132.

黄土地区地上两层地铁车站抗震性能振动台试验

韩建平^1,2, 聂闻锐^1,2

1.兰州理工大学甘肃省土木工程防灾减灾重点实验室, 甘肃兰州 730050;
2.兰州理工大学防震减灾研究所, 甘肃兰州 730050

收稿日期:2018-12-22 出版日期:2020-04-28 发布日期:2020-06-23
作者简介:韩建平(1970-),男,甘肃宕昌人,博士,教授.
基金资助:
甘肃省科技支撑计划(144GKCA025)

Shaking table test for anti-seismic performance of subway station in loess area with two floors aboveground

HAN Jian-ping^1,2, NIE Wen-rui^1,2

1. Key Laboratory of Disaster Prevention and Mitigation in Civil Engineering of Gansu Province, Lanzhou Univ. of Tech. , Lanzhou 730050, China;
2. Institute of Earthquake Protection and Disaster Mitigation, Lanzhou Univ. of Tech. , Lanzhou 730050, China

Received:2018-12-22 Online:2020-04-28 Published:2020-06-23

摘要/Abstract

摘要： 为研究黄土地区地下一层地上两层地铁车站结构的抗震性能,进行包括地上、地下结构及周围土层的振动台试验研究.在简要介绍模型设计和试验工况的基础上,重点根据试验中各传感器所记录的数据,对模型土箱的边界效应、模型地基与模型结构的动力反应、土与结构的相互作用等进行分析探讨.试验结果表明:地下一层地上两层地铁车站模型结构地上部分受输入地震动峰值加速度影响较大,地上部分的最终破坏模式是整体侧向倒塌;车站模型结构地下部分受地下结构周围土层影响较大,土层位移不大时地下结构无明显破坏;地上地下结构交接处的破坏最为严重.模型车站结构的存在对土体动力反应的影响较小,并随输入地震动峰值的增大而减弱.

关键词: 黄土地区, 地铁车站, 地上结构, 振动台试验, 抗震性能, 土-结构相互作用

Abstract: In order to investigate the anti-seismic performance of subway station with 2 aboveground storeys and 1 underground storey in the loess area, the shake table test of the both aboveground and underground structure and the surrounding soil layer is carried out. Based on the brief introduction of model design and loading condition, the boundary effect of model soil box, dynamic response of model soil and model structure, and the soil-structure interaction are emphatically analyzed and discussed according to the data recorded by sensors in the tests. Test results show that the aboveground part of the model subway station with 2 aboveground storeys and 1 underground storey in the loess area will be subjected to the larger influence of peak ground acceleration of input earthquake. The final failure pattern of the aboveground part will be the overall sidesway collapse. The underground part of the subway station will be subjected to the larger influence of the soil around the underground structure. There will be no obvious damage in the underground structure when the displacement of surrounding soil is small. The interface part between aboveground and underground structure will be subjected to the worst damage. The model subway station structure will have little influence on the dynamic response of surrounding soil, and the influence will decrease with the increase of the peak ground acceleration of input earthquake.

Key words: loess area, subway station, aboveground structure, shaking table test, anti-seismic performance, soil-structure interaction

中图分类号:

TU31
U231.4

韩建平, 聂闻锐. 黄土地区地上两层地铁车站抗震性能振动台试验[J]. 兰州理工大学学报, 2020, 46(2): 127-132.

HAN Jian-ping, NIE Wen-rui. Shaking table test for anti-seismic performance of subway station in loess area with two floors aboveground[J]. Journal of Lanzhou University of Technology, 2020, 46(2): 127-132.

参考文献

[1] 王志杰,骆亚生,杨永俊.不同地区非饱和黄土动力结构性研究 [J].岩土力学,2010,31(8):2459-2464.
[2] AN X,SHAWKY A A,MAEKAWA K.The collapse mechanism of a subway station during the Great Hanshin earthquake [J].Cement & Concrete Composites,1997,19(3):241-257.
[3] 吕西林,陈跃庆.结构-地基动力相互作用体系振动台模型试验研究 [J].地震工程与工程振动,2000,20(4):20-29.
[4] JAFARZADEH F,FARAHI JAHORMI H,ABAZARITORGHABEH E.Investigating dynamic response of a buried
pipeline in sandy soil layer by 1G shaking table test [J].International Journal of Civil Engineering,2010,8(2):107-124.
[5] 陈国兴,左熹,王志华,等.近远场地震作用下液化地基上地铁车站结构动力损伤特性的振动台试验 [J].土木工程学报,2010,43(12):120-126.
[6] LANZANO G,BILOTTA E,RUSSO G,et al.Centrifuge modeling of seismic loading on tunnels in sand [J].Geotechnical Testing Journal,2012,35(6):1-16.
[7] VARGHESE R M,LATHA G M.Shaking table tests to investigate the influence of various factors on the liquefaction resistance of sands [J].Natural Hazards,2014,73(3):1337-1351.
[8] TABATABAIEFAR H R.Detail design and construction procedure of laminar soil containers for experimental shaking table tests [J].International Journal of Geotechnical Engineering,2016,10(4):328-336.
[9] 孙超,薄景山,齐文浩,等.地下结构抗震研究现状及展望 [J].世界地震工程,2009,25(2):94-99.
[10] 刘妮娜,门玉明,刘洋.地震动力作用下土-地铁隧道模型分析 [J].地球科学与环境学报,2009,31(3):295-298.
[11] 权登州,王毅红,叶丹,等.黄土地区地铁车站振动台试验研究 [J].土木工程学报,2016,49(11):79-90.
[12] 张佳,王毅红,权登州,等.黄土地区地铁地下车站地震变形特性研究 [J].震灾防御技术,2016,11(2):272-282.
[13] 张敏政.地震模拟实验中相似律应用的若干问题 [J].地震工程与工程振动,1997,17(2):52-58.
[14] 杨林德,季倩倩,郑永来,等.地铁车站结构振动台试验中模型箱设计的研究 [J].岩土工程学报,2004,26(1):75-78.
[15] 陈国兴,王志华,左熹,等.振动台试验叠层剪切型土箱的研制 [J].岩土工程学报,2010,32(1):89-97.
[16] 胡聿贤.地震工程学 [M].北京:地震出版社,2006.