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[1] Ding Wensheng, Lü Zhitao, Liu Zhao, et al. Experimental investigation on seismic performanceof rigid frame tied-arch bridge with split-piers [J]. Journal of Southeast University (English Edition), 2006, 22 (4): 534-538. [doi:10.3969/j.issn.1003-7985.2006.04.019]
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Experimental investigation on seismic performanceof rigid frame tied-arch bridge with split-piers()
采用被动分肢墩的刚架系杆拱桥抗震性能试验研究
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Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]

Volumn:
22
Issue:
2006 4
Page:
534-538
Research Field:
Traffic and Transportation Engineering
Publishing date:
2006-12-30

Info

Title:
Experimental investigation on seismic performanceof rigid frame tied-arch bridge with split-piers
采用被动分肢墩的刚架系杆拱桥抗震性能试验研究
Author(s):
Ding Wensheng1;  2;  Lü Zhitao1;  Liu Zhao1;  Zang Hua1;  Li Guoliang1
1 School of Civil Engineering, Southeast University, Nanjing 210096, China
2School of Construction and Safety Engineering, Shanghai Institute of Technology, Shanghai 200235, China
丁文胜1;  2;  吕志涛1;  刘钊1;  臧华1;  李国亮1
1东南大学土木工程学院, 南京 210096; 2上海应用技术学院土木建筑与安全工程学院, 上海 200235
Keywords:
seismic design;  split-pier;  pier;  rigid frame tied-arch bridge;  seismic performance
抗震设计;  被动分肢墩;  墩柱;  刚架系杆拱桥;  抗震性能
PACS:
U442.5+9
DOI:
10.3969/j.issn.1003-7985.2006.04.019
Abstract:
A novel seismic design method, namely split-pier seismic design, is proposed.A vertical gap and connect elements are set in split-piers.The lateral stiffness of piers is reduced by cracking of the connect elements under severe earthquake, and the seismic response of bridges is reduced by avoiding the site predominant periods.A model of tied-arch rigid frame bridge with split-piers was designed.Seismic performance was investigated by pseudo-static experimentation on the scale model.The failure process of split-piers, the hysteresis characteristic and the effect of split-piers on the superstructure are presented.Results show that the split-pier has better seismic performance than common ductile piers do.
为了提高刚架系杆拱桥的抗震性能, 提出了一种新型抗震墩柱——被动分肢墩的抗震设计概念.即在墩柱中设置竖缝和连接件, 利用连接件在罕遇地震下的破坏, 降低墩柱抗侧刚度, 避开场地卓越周期, 减小结构的地震反应.以实桥为原型, 设计了采用被动分肢墩的刚架系杆拱桥比例模型, 进行了该模型拟静力试验研究.介绍了被动分肢墩的试验破坏过程, 滞回特性以及对上部拱肋的影响, 试验结果表明:与普通延性抗震墩柱相比, 被动分肢墩具有良好的抗震性能.

References:

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Memo

Memo:
Biographies: Ding Wensheng(1968—), male, graduate, associate professor;Lü Zhitao(corresponding author), male, professor, academician of Chinese Academy of Engineering, luzhitao@seu.edu.cn.
Last Update: 2006-12-20