1.武汉理工大学道路桥梁与结构工程湖北省重点实验室,湖北 武汉 430070
2.温州大学建筑工程学院, 浙江 温州 325000
3.北京工业大学城市与工程安全减灾教育部重点实验室,北京 100124
郝朋飞(1995—),男,硕士研究生。主要从事工程结构抗震分析方面的研究。E-mail:haopf995@foxmail.com
王国波(1979—),男,教授,博士。主要从事工程结构动力响应分析方面的研究。E-mail:20190337@wzu.edu.cn
纸质出版:2022-02-28
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郝朋飞,王国波,赵旭等.大型十字换乘车站结构地震响应及空间效应分析[J].防灾减灾工程学报,2022,42(01):180-190.
HAO Pengfei,WANG Guobo,ZHAO Xu,et al.Seismic Response and Spatial Effect Analysis of Large Cross Interchange Metro Station Structure[J].Journal of Disaster Prevention and Mitigation Engineering,2022,42(01):180-190.
郝朋飞,王国波,赵旭等.大型十字换乘车站结构地震响应及空间效应分析[J].防灾减灾工程学报,2022,42(01):180-190. DOI: 10.13409/j.cnki.jdpme.201912070.
HAO Pengfei,WANG Guobo,ZHAO Xu,et al.Seismic Response and Spatial Effect Analysis of Large Cross Interchange Metro Station Structure[J].Journal of Disaster Prevention and Mitigation Engineering,2022,42(01):180-190. DOI: 10.13409/j.cnki.jdpme.201912070.
由于换乘地铁车站结构在地下交通线网中发挥重要作用,且其相对于单体地铁车站具有结构复杂、三维不规则等特性,是典型的空间结构,不能采用平面模型进行分析,因此极有必要探讨大型十字换乘站的抗震性能。基于某大型十字换乘地铁车站,分别建立自由场、单体地铁车站、十字换乘地铁车站三维有限元模型,对比分析单体车站与换乘站结构的抗震性能差异,换乘站结构在不同地震动输入方向作用下的地震响应及其空间效应的影响范围。结果表明:(1)相对于单体车站,换乘站结构及其周围土体加速度响应、相对位移均小于单体车站,表明其整体抗震性能优于单体车站;(2)换乘站空间效应受地震动输入方向的影响较小,其中端墙的影响范围为
B
,十字换乘节点的影响范围为3
B
/2(
B
为结构宽度)。
Since the transfer subway station structure plays an important role in the underground traffic network, and it has the characteristics of complex structure and three-dimensional irregularity with respect to the single subway station, it is a typical spatial structure and cannot be analyzed by a plane model. It is necessary to discuss the seismic performance of large cross-transfer stations. Based on a large cross-change subway station, three-dimensional finite element models of free-field, single-unit subway station and cross-change subway station are established, respectively, and the two metro stations and their surrounding soils are calculated under different ground motion types and amplitudes. Dynamic response, comparative analysis of the difference between the seismic performance of the single station and the transfer station structure and the influence range of the transfer station space effect. The results show that: (1) Compared with the single station, the acceleration response and relative displacement of the transfer station structure and its surrounding soil are smaller than that of the single station, indicating that its overall seismic performance is better than that of the single station; (2) The space effect of the transfer station is less affected by the input direction of the ground motion. The influence range of the end wall is B, and the influence range of the cross transfer node is 3B/2 (B is the structure width). The research results of the thesis have certain reference significance for the seismic design of the transfer station structure.
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