|
|
|
| Shaking table tests and numerical simulation for complex conjoined structure of east building of Xi’an railway station |
| GUO Hongchao1,2, LEI Tianqi1, CAI Yujun3, LI Hui3, SUN Jianlong3, LIU Yunhe1 |
1.School of Civil Engineering and Architecture, Xi’an University of Technology, Xi’an 710048, China;
2.Shaanxi Provincial Key Lab of Loess Mechanics and Engineering, Xi’an 710048, China;
3.China Railway First Survey and Design Institute Group Co., Ltd., Xi’an 710043, China |
|
|
|
|
Abstract Through shaking table tests for the scale model of east building of Xi’an railway station, the failure mode and aseismic performance of the structure under different levels of earthquake were investigated.Numerical simulation was performed for the model structure, and development laws of dynamic responses, such as, natural frequencies, accelerations and displacements of the structure under different working conditions were compared and analyzed.The results showed that the simulation results agree better with the test ones; the structural stiffness degradation is the most obvious after 8° rare earthquake, X direction stiffness and Y direction one of the small triangle zone drop by 39.66% and 37.50%, respectively and their simulation values drop by 33.43% and 28.79%, respectively with differences of less than 6%; the maximum story drifts of the structure in elastic stage and elastic-plastic one are 1/554 and 1/53, respectively to meet the limited value requirements in aseismic code; sliding support is used in large-span truss to effectively release relative displacement between small triangle zone and large one to ensure the conjoined structure being able to work cooperatively and deform well; under 9° rare earthquake, the dynamic response of laminated truss is larger, its stiffness degradation rate reaches 23.73%, its out of plane torsion angle reaches 1/56, and its displacement ratio reaches 1.36, so setting viscous damper is suggested to control truss vibration.
|
|
Received: 02 March 2020
Published: 15 September 2021
|
|
|
|
［1］李永双，肖从真，金林飞，等．结构高位连桥支座位移分析及控制研究［J］．土木工程学报，2013，46(12):1-8．
LI Yongshuang，XIAO Congzhen，JIN Linfei，et al．Displacement analysis and control study on support of high-rise structures connected with high corridor［J］．China Civil Engineering Journal，2013，46 (12):1-8．
［2］安东亚.复杂连体高层结构整体稳定研究［J］.建筑结构学报,2019,40(3):100-105.
AN Dongya.Study on overall stability of complex high-rise connected structures ［J］.Journal of Building Structures, 2019,40(3):100-105.
［3］潘毅,赵崇锦,常志旺,等.大跨异形钢连廊连体结构振动台试验研究［J］.土木工程学报,2019,52(2):66-77.
PAN Yi,ZHAO Chongjin,CHANG Zhiwang,et al.Shaking table test of connected structure with large-span special-shaped steel corridor ［J］.China Civil Engineering Journal, 2019,52(2):66-77.
［4］郭宏超,柴恒远,蔡玉军,等.西安站改东配楼碰撞效应及影响因素研究［J］.地震工程与工程振动,2019,39(2):183-193.
GUO Hongchao,CHAI Hengyuan,CAI Yujun,et al.Study on impact and influencing factors of Xi’an Railway Station ［J］.Earthquake Engineering and Engineering Vibration, 2019,39(2):183-193.
［5］LEE D G，KIM H S，KO H． Evaluation of coupling-control effect of a sky-bridge foradjacent tall buildings［J］． The Structural Design of Tall and Special Buildings，2012，21(1):311-328．
［6］律清,卢文胜,吕西林,等.采用被动控制的四塔连体结构振动台试验研究［J］.建筑结构学报,2017,38(3):46-57.
L Qing, LU Wensheng, L Xilin, et al.Shaking table test of four-tower connected structure with passive control ［J］.Journal of Building Structures, 2017, 38(3): 46-57.
［7］黄襄云，刁云云，谭平，等．多塔楼高层建筑连廊结构的柔性连接设计及试验研究［J］． 地震工程与工程振动，2007，27(6): 112-118．
HUANG Xiangyun，DIAO Yunyun，TAN Ping，et al． Flexible connection design and test research in multi-tower high-rise building with corridor structure ［J］． Earthquake Engineering and Engineering Vibration，2007，27(6): 112-118.
［8］桂国庆,周巧伶,李永华.罕遇地震作用下柔性连接连体结构的弹塑性地震响应分析［J］.地震工程与工程振动,2013,33(5):116-127.
GUI Guoqing,ZHOU Qiaoling,LI Yonghua.Elastoplastic seismic response analysis of flexible joints under rare earthquakes［J］.Earthquake Engineering and Engineering Vibration,2013,33(5):116-127.
［9］柴恒远, 郭宏超,蔡玉军,等.西安站改东配楼弹塑性时程分析［J］.武汉大学学报,2019,39(2):183-193.
CHAI Hengyuan, GUO Hongchao, CAI Yujun, et al.Dynamic elastoplastic time history analysis at Renovation East Building of Xi’an Railway Station ［J］.Journal of Wuhan University, 2019, 39(2): 183-193.
［10］北京金土木软件技术有限公司.AP2000使用指南［M］.2版.北京：人民交通出版社，2012.
［11］中华人民共和国住房和城乡建设部.混凝土结构设计规范:GB 50010—2010［S］.北京:中国建筑工业出版社, 2010.
［12］中华人民共和国住房和城乡建设部.建筑抗震设计规范:GB 50011—2010［S］.北京:中国建筑工业出版社, 2010. |
| [1] |
YU Zhongyang1,2, ZHANG Hongru1,2, QIU Yanjia1,2, ZHANG Ran1,2, LI Hao1,2. Shaking table tests for cross subway station structure[J]. JOURNAL OF VIBRATION AND SHOCK, 2021, 40(9): 142-151. |
|
|
|
|
