桥梁震害分析与合理抗震体系研究
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摘要
通过对汶川、唐山及云南等地震中典型的简支梁桥、连续梁桥、连续刚构桥和拱桥震害分析发现,相同桥梁体系的震害有许多共同特征,不同桥梁体系的抗震性能差异很大。本文结合数值分析,讨论了简支梁桥、连续梁桥、连续刚构桥和拱桥在各种条件下的抗震性能优劣,提出了地震区直线桥梁合理抗震体系的选择方法。
Damages of simple beam bridge,continuous beam bridge,continuous rigid frame bridge and arch bridge in Wenchuan,Tangshan and Yunnan earthquakes etc are analyzed.Many common features of the damage to the same bridge system and different seismic performance of various bridge systems are found.Seismic performance under different conditions for the simply supported bridge,continuous beam bridge,continuous rigid frame bridge and arch bridge are discussed.Reasonable seismic system selection for the straight line bridge in seismic zone are proposed.
Damages of simple beam bridge,continuous beam bridge,continuous rigid frame bridge and arch bridge in Wenchuan,Tangshan and Yunnan earthquakes etc are analyzed.Many common features of the damage to the same bridge system and different seismic performance of various bridge systems are found.Seismic performance under different conditions for the simply supported bridge,continuous beam bridge,continuous rigid frame bridge and arch bridge are discussed.Reasonable seismic system selection for the straight line bridge in seismic zone are proposed.
引文
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[4]王克海.桥梁抗震研究[M].北京:中国铁道出版社,2007Wang Ke-hai.Bridge Seismic Study[M].Beijing:China Railway Publishing House,2007(in Chinese)
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[6]孙治国,王东升,郭迅等.汶川大地震绵竹市回澜立交桥震害调查[J].地震工程与工程振动,2009,29(4):132～138Sun Zhi-guo,Wang Dong-sheng,Guo Xun,et al.Damage investigation of Huilan Interchange in Mianzhuafter Wenchuan earthquake[J].Earthquake Engineeringand Engineering Vibration,2009,29(4):132～138(inChinese)
[7]陈敬.云南地区地震的桥梁震害[J].地震研究,2000,23(4):436～443Chen Jing.Damage of Bridge Caused by Earthquake inYunNan[J].Earthquake Research,2000,23(4):436～443(in Chinese)
[8]夏修身,陈兴冲,王常峰,等.高墩大跨连续刚构桥抗震性能研究[J].西北地震学报,2010,32(1):88～91Xia Xiu-shen,Chen Xing-chong,Wang Chang-feng,etal.Study on Seismic Performance of Tall-pier and Long-span Continuous Rigid-framed Bridge[J].NorthwesternSeismological Journal,2010,32(1):88～91(inChinese)
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