TOD模式下上盖塔楼地铁车站结构地震易损性分析  

Seismic vulnerability analysis of upper tower subway station structure in TOD mode

作　　者：李文博 冯富强 郭飞 张彦华 安军海 LI Wenbo;FENG Fuqiang;GUO Fei;ZHANG Yanhua;AN Junhai(Beijing Urban Construction Design&Development Group Company Limited,Beijing 100371,China;School of CivilEngineering,Hebei University of Science and Technology,Shijiazhuang,Hebei 050018,China;Beijing Municipal Construction Group Company Limited,Beijing 100045,China)

机构地区：[1]北京城建设计发展集团股份有限公司,北京100371 [2]河北科技大学建筑工程学院,河北石家庄050018 [3]北京市政建设集团有限责任公司,北京100045

出　　处：《河北工业科技》2025年第2期152-163,共12页Hebei Journal of Industrial Science and Technology

基　　金：河北省自然科学基金(E2024208050);河北省高等学校科学技术研究项目(QN2023079)。

摘　　要：为进一步探究上盖塔楼地铁车站的结构动力响应及损伤状况,推动以公共交通为导向的开发(transit-oriented development,TOD)模式体系的发展,开展了TOD模式下上盖塔楼地铁车站结构地震易损性分析。以北京某城市综合体工程为研究背景,综合考虑场地类别、输入地震动特性等因素的影响,建立了不同场地类别下的土-结构相互作用非线性分析模型,提出了一种TOD模式下上盖塔楼地铁车站结构抗震性能评估指标范围,并确定了其地震易损性曲线,进而得到不同损伤状态下的超越概率。结果表明:上盖塔楼地铁车站结构在基本完好、轻微破坏、中等破坏、严重破坏和倒塌5种损伤状态下对应的抗震性能指标范围分别为[0,0.136%]、(0.136%,0.324%]、(0.324%,0.664%]、(0.664%,1.122%]和(1.122%,+∞);近场脉冲型地震动对Ⅱ类场地中结构地震动影响更大,远场长周期型地震动对Ⅲ类场地中结构的影响更大;与近场脉冲型地震动和普通型地震动相比,远场长周期型地震动对场地类别更加敏感;地震动特性和场地类别对TOD模式下上盖塔楼地铁车站结构的动力响应有显著影响,相较于Ⅱ类场地,Ⅲ类场地中地震动特性对结构的影响更为显著且结构更容易遭受地震破坏。建立的结构易损性曲线和地震损伤状态概率表可有效评估TOD模式下上盖塔楼地铁车站的抗震性能,研究成果可为类似地下结构的抗震性能评价提供有价值的参考。In order to further explore the structural dynamic response and damage status of the upper tower subway station and promote the development of the TOD(transit-oriented development)model system oriented by public transportation,the seismic vulnerability analysis of the upper tower subway station structure in the TOD model was carried out.Taking an urban complex project in Beijing as the research background,a nonlinear analysis model of soil-structure interaction under different site types was established by considering the influence of site types,input ground motion characteristics and other factors.A seismic performance evaluation index range of the upper tower subway station structure in TOD mode was proposed and its seismic vulnerability curve was determined,and then the exceedance probability under different damage states was obtained.The results show that the corresponding seismic performance index ranges of the upper tower subway station structure under the five damage states of basically intact,slight damage,moderate damage,severe damage and collapse are[0,0.136%],(0.136%,0.324%],(0.324%,0.664%],(0.664%,1.122%]and(1.122%,+∞),respectively.The near-field pulse-type ground motion has a greater impact on the ground motion of the structure under the ClassⅡsite,while the far-field long-period ground motion has a greater impact on the structure under the ClassⅢsite.Compared with near-field pulse-type ground motion and ordinary ground motion,far-field long-period ground motion is more sensitive to site category.The ground motion characteristics and site types have a significant impact on the dynamic response of the upper tower subway station structure under the TOD mode.Compared with the site typeⅡ,the ground motion characteristics of the site typeⅢhave a more significant impact on the structure and the structure is more vulnerable to earthquake damage.The established seismic vulnerability curve and seismic damage probability table can effectively evaluate the seismic performance of the upper tower subway

关 键 词：地下工程 地震易损性 地铁车站结构 TOD模式 增量动力分析法 超越概率 

分 类 号：TU375.2[建筑科学—结构工程]