[1]赵金钢,*,李晰,等.场地及碰撞效应对连续刚构桥剪切易损性影响[J].山东建筑大学学报,2019,34(05):27-36.[doi:10.12077/sdjz.2019.05.005]
 ZHAO Jingang,*,LI Xi,et al.Effect of the actual site and pounding on shear fragility of high-pier continuous rigid-frame bridge[J].Journal of Shandong jianzhu university,2019,34(05):27-36.[doi:10.12077/sdjz.2019.05.005]
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场地及碰撞效应对连续刚构桥剪切易损性影响()
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《山东建筑大学学报》[ISSN:1673-7644/CN:37-1449/TU]

卷:
34
期数:
2019年05期
页码:
27-36
栏目:
研究论文
出版日期:
2019-10-15

文章信息/Info

Title:
Effect of the actual site and pounding on shear fragility of high-pier continuous rigid-frame bridge
文章编号:
1673-7644(2019)05-0027-09
作者:
赵金钢1*李晰2贾宏宇2杨灿3
(1.贵州大学 土木工程学院, 贵州 贵阳 550025;2. 西南交通大学 土木学院, 四川 成都 610031;3.湖北省交通规划设计院股份有限公司, 湖北 武汉 430051)
Author(s):
ZHAO Jingang1*LI Xi2JIA Hongyu2et al.
(1. College of Civil Engineering, Guizhou University, Guiyang 550025, China; 2. School of Civil Engineering, Southwest Jiaotong University, Chengdu 610031, China)
关键词:
高墩连续刚构桥场地效应碰撞效应剪切易损性
Keywords:
high-pier continuous rigid-frame bridge site effect pounding effect shear fragility
分类号:
U443.2
DOI:
10.12077/sdjz.2019.05.005
文献标志码:
A
摘要:
剪切破损是钢筋混凝土墩柱的一种危险的破坏形式,研究实际场地土层分布和碰撞效应对钢筋混凝土墩柱剪切易损性的影响,可以为既有桥梁抗震加固设计提供参考依据。文章以某钢筋混凝土高墩大跨连续刚构桥为研究对象,同时考虑桥位处实际土层分布对基岩地震波的过滤作用,基于OpenSees软件建立全桥空间有限元模型,进行增量动力非线性分析,研究高墩剪切易损性。结果表明:高墩剪切损伤概率受碰撞效应影响较小,而受场地效应的影响较大,并且场地效应对高墩(3#墩)剪切易损性的影响大于次高墩(2#墩);2#、3#墩发生轻微损伤和中等损伤的概率均较大,而2#墩发生严重损伤和完全损伤的概率较大,3#墩发生严重损伤和完全损伤的概率较小。高墩大跨连续刚构桥进行抗震设计时,应考虑实际场地效应对高墩剪切损伤的影响。
Abstract:
The shear damage a dangerous failure mode of reinforced concrete piers. The study of the influence of actual soil distribution and pounding effect on shear fragility of reinforced concrete piers can provide reference for antiseismic strengthening design of existing high-pier bridges. A real reinforced concrete high-pier and long-span continuous rigid-frame bridge is taken as the research object. And the filtering effect of the actual soil layer distribution on the seismic wave of bedrock is considered. Based on the OpenSees software, the spatial finite element model of the whole bridge is built and the incremental dynamic nonlinear analysis is performed to analysis on the shear fragility of the bridge. The results show that the shear damage probability of high-pier has little influence by the pounding effect and has great influence by the site effect. And the influence of the site effect on the shear damage probability of the Pier 3# is greater than the Pier 2#. The probability of slight damage and moderate damage of the Pier 2# and the Pier 3# is greater, and the probability of severe damage and complete damage of the Pier 2# is greater, while the probability of severe damage and complete damage of the Pier 3# is lower. The effect of actual site effect on the shear damage of high-pier should be considered when the seismic design of high-pier and long-span continuous rigid-frame bridge is carried out.

参考文献/References:

[1]王东升,郭迅,孙治国,等.汶川大地震公路桥梁震害初步调查[J].地震工程与工程振动,2009,29(3):84-94. [2]李宏男,陈国兴.地震工程学[M].北京:机械工业出版社,2013. [3]Ang B G, Priestley M J N, Paulay T. Seismic shear strength of circular reinforced concrete columns[J]. ACI Structural Journal, 1989,86(1):45-59. [4]王东升,司炳君,孙治国,等.地震作用下钢筋混凝土桥墩塑性铰区抗剪强度试验[J].中国公路学报,2011,24(2):34-41. [5]张勤.RC柱考虑剪切作用的抗震性能和残余变形研究[D].大连:大连理工大学,2014. [6]张菊辉.基于数值模拟的规则梁桥墩柱的地震易损性分析[D].上海:同济大学,2006. [7]董俊.铁路高墩大跨度刚构—连续组合体系桥梁近场地震易损性分析研究[D].成都:西南交通大学,2016. [8]李兆焱,袁晓铭.2016年台湾高雄地震场地效应及砂土液化破坏概述[J].世界地震工程,2016,32(3):1-7. [9]JTG/TB 02-01—2008,公路桥梁抗震设计细则[S].北京:人民交通出版社,2008. [10]赵金钢,杜斌,占玉林,等.OpenSees中混凝土本构模型用于模拟结构滞回性能的对比[J].桂林理工大学学报,2017,37(1):59-67. [11]Pacific Earthquake Engineering Research Center. PEER ground motion database[DB/OL].(2005-01-01)[2019-08-29]. http://peer.berkeley.edu/smcat/index.html [12]Hashash Y M A, Park D. Non-linear one-dimensional seismic ground motion propagation in the Mississippi embayment[J]. Engineering Geology, 2001,62(1-3):185-206. [13]Matasovic N, Vucetic M. Cyclic characterization of liquefiable sands[J]. ASCE Journal of Geotechnical Engineering, 1993(11):1085-1821. [14]Priestley M J N, Verma R, Xiao Y. Seismic shear strength of reinforced concrete columns[J]. ASCE Journal of Structural Engineering, 1994,120(8):2310-2329. [15] California Department of Transportation.Caltrans seismic design criteria[S]. California: California Department of Transportation, 2010. [16]Hoshikuma J I, Priestley M J N. Flexural behavior of circular hollow columns with a single layer of reinforcement under seismic loading[R]. San Diego: University of California, 2000. [17]吕大刚,于晓辉,潘峰,等.基于改进云图法的结构概率地震需求分析[J].世界地震工程,2010,26(1):7-15.

备注/Memo

备注/Memo:
收稿日期:2019-08-29 基金项目:国家自然科学基金项目(11602061);贵州省科技计划项目(黔科合基础[2019]1125);贵州省土木工程一流学科建设项目(QYNYL[2017]0013);贵州大学引进人才项目(201517)作者简介:赵金钢(1984-),男,讲师,博士,主要从事钢筋混凝土高墩桥梁地震易损性分析等方面的研究.E-mail:jgzhao@gzu.edu.cn[*通讯作者]
更新日期/Last Update: 2019-08-01