[1]黎雅乐,宗周红,黄学漾,等.强震下钢筋混凝土连续梁桥非线性动力响应分析[J].东南大学学报(自然科学版),2016,46(6):1271-1277.[doi:10.3969/j.issn.1001-0505.2016.06.027]
 Li Yale,Zong Zhouhong,Huang Xueyang,et al.Nonlinear dynamic response analysis of reinforced concrete continuous girder bridge under strong earthquake excitations[J].Journal of Southeast University (Natural Science Edition),2016,46(6):1271-1277.[doi:10.3969/j.issn.1001-0505.2016.06.027]
点击复制

强震下钢筋混凝土连续梁桥非线性动力响应分析()
分享到:

《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
46
期数:
2016年第6期
页码:
1271-1277
栏目:
交通运输工程
出版日期:
2016-11-20

文章信息/Info

Title:
Nonlinear dynamic response analysis of reinforced concrete continuous girder bridge under strong earthquake excitations
作者:
黎雅乐12宗周红1黄学漾3夏坚3林元铮1
1东南大学土木工程学院, 南京 210096; 2南京航空航天大学金城学院, 南京 211156; 3福建省建筑科学研究院, 福州 350025
Author(s):
Li Yale12 Zong Zhouhong1 Huang Xueyang3 Xia Jian3 Lin Yuanzheng1
1School of Civil Engineering, Southeast University, Nanjing 210096, China
2Jincheng College, Nanjing University of Aeronautics and Astronautics, Nanjing 211156, China
3Fujian Institute of Architectural Science, Fuzhou 350025, China
关键词:
钢筋混凝土连续梁桥 非线性动力响应分析 振动台试验 地震损伤 倒塌 碰撞
Keywords:
reinforced concrete continuous girder bridge nonlinear dynamic response analysis shaking table test seismic damage collapse collision
分类号:
U448.21
DOI:
10.3969/j.issn.1001-0505.2016.06.027
摘要:
为了探索连续梁桥的地震损伤演化和破坏历程,在连续梁桥1∶3模型地震振动台台阵试验基础上,对该模型桥进行了非线性动力响应分析,考虑了主梁与桥台间以及横向挡块之间的碰撞效应对地震响应的影响,弥补了模型试验未考虑碰撞效应的不足.分析结果表明:数值分析结果与振动台试验结果较为吻合,两跨连续梁模型的主要破坏模式为墩柱破坏,中墩墩底为关键截面;纵向地震动作用下该模型结构加速度反应谱小于17.4 m/s2则结构不发生倒塌破坏;若考虑桥台对主梁的纵向约束作用,则主梁加速度响应增加、主梁位移减小、墩柱受力减轻,且该约束作用随接触间隙减小而越发显著;若考虑梁和挡块之间的碰撞,则主梁加速度增大,墩柱受力随着间隙的增加而增加.该研究成果可为后续连续梁桥的抗倒塌设计和抗震加固提供参考.
Abstract:
To explore the seismic damage evolution and failure history of the continuous girder bridge model, a nonlinear dynamic response analysis was made based on the shaking table test of a scaled 1∶3 bridge model. Collisions between the girder and the abutment and those between the girder and the shear key were discussed to compensate for test results without considering the impact of collision. The analysis results indicate that numerical analysis results are consistent with those from the shaking table array test. The main failure mode of a two-span continuous girder model is the destruction of piers, and the lower cross section of middle pie is the vital place. The bridge model will not collapse under longitudinal shaking on the condition that the acceleration response spectrum of the girder is less than 17.4 m/s2. If the collision between the girder and the abutment is considered, the acceleration of main girder becomes larger, the displacement of main girder becomes less, and the internal forces of pier column will be less. The effects are more significant with the decrease of contact gap. If considering the collision between the girder and the shear key, the acceleration of main girder increases, and the force of pier column increases with the increase of contact gap. This study provides references for subsequent anti-collapse design and seismic retrofit of concrete continuous girder bridges.

参考文献/References:

[1] 李鸿晶,陆鸣,温增平,等.汶川地震桥梁震害的特征[J].南京工业大学学报(自然科学版),2009,31(1):24-29. DOI:10.3969/j.issn.1671-7627.2009.01.005.
  Li Hongjing, Lu Ming, Wen Zengping, et al. Characteristics of bridge damages in wenchuan earthquake[J]. Journal of Nanjing University of Technology(Natural Science Edition), 2009, 31(1): 24-29. DOI:10.3969/j.issn.1671-7627.2009.01.005.(in Chinese)
[2] Hashimoto S, Abe M, Fujino Y. Damage analysis of Hanshin Expressway viaducts during 1995 Kobe earthquake. Ⅲ: Three-span continuous girder bridges[J]. Journal of Bridge Engineering, 2005, 10(1): 61-68. DOI:10.1061/(asce)1084-0702(2005)10:1(61).
[3] Sun Z, Wang D, Guo X, et al. Lessons learned from the damaged Huilan interchange in the 2008 Wenchuan earthquake[J]. Journal of Bridge Engineering, ASCE, 2011, 17(1): 15-24. DOI:10.1061/(asce)be.1943-5592.0000210.
[4] 闫晓宇,李忠献,李勇,等.考虑土-结构相互作用的多跨连续梁桥振动台阵试验研究[J].土木工程学报,2013,46(11):98-104.
  Yan Xiaoyu, Li Zhongxian, Li Yong, et al. Shaking tables test on a long-span continuous girder bridge considering soil-structure interaction[J].China Civil Engineering Journal, 2013, 46(11): 98-104.(in Chinese)
[5] Jankowski R, Wilde K, Fujino Y. Reduction of pounding effects in elevated bridges during earthquakes[J]. Earthquake Engineering & Structural Dynamics, 2000, 29(2): 195-212.
[6] 王军文,李建中,范立础.连续梁桥纵向地震碰撞反应参数研究[J].中国公路学报,2005,18(4):42-47. DOI:10.3321/j.issn:1001-7372.2005.04.009.
  Wang Junwen, Li Jianzhong, Fan Lichu. Parametric study of longitudinal seismic pounding response for continuous girder bridges[J]. China Journal of Highway and Transport, 2005, 18(4): 42-47. DOI:10.3321/j.issn:1001-7372.2005.04.009.(in Chinese)
[7] 禚一,李忠献,王菲.桥梁地震碰撞的三维撞击模型及非线性响应分析[J].土木工程学报,2014,47(5):71-80.
  Zhuo Yi, Li Zhongxian, Wang Fei. 3D impact model and non-linear response analysis for seismic pounding of bridges[J]. China Civil Engineering Journal, 2014, 47(5): 71-80.(in Chinese)
[8] 中华人民共和国交通运输部.JTG/T B02-01—2008公路桥梁抗震设计细则[S].北京:人民交通出版社,2008.
[9] 黎雅乐,宗周红,刘思明,等.钢筋混凝土连续梁桥模型振动台台阵试验[J].中国公路学报,2016,29(6):232-242.
  Li Yale, Zong Zhouhong, Liu Siming, et al. Shaking table array testing of reinforced concrete continuous girder bridge model[J]. China Journal of Highway and Transport, 2016, 29(6): 232-242.(in Chinese)
[10] 宗周红,任伟新.桥梁有限元模型修正与模型确认[M].北京:人民交通出版社,2012:1-3.
[11] PEER. PEER Strong Motion Database[EB/OL].(2016-04-22)[2016-12-01].http://peer.berkeley.edu/ngawest2/databases/.
[12] 中国国家地震科学数据共享中心.强震观测数据库[EB/OL].(2016-04-22)[2016-12-01].http://www.smsd-iem.net.cn/.
[13] Vamvatsikos D, Cornell C A. Incremental dynamic analysis[J]. Earthquake Engineering and Structural Dynamics, 2002, 31(3): 491-514.
[14] FEMA. NEHRP guidelines for the seismic rehabilitation of buildings[R]. Washington, DC, USA: Federal Emergency Management Agency, 1997.
[15] Mazzoni S, McKenna F, Scott M H, et al. OpenSees users manual[R]. Berkeley,CA, USA: PEER, 2004.
[16] Megally S H, Silva P F, Seible F. Seismic response of sacrificial shear keys in bridge abutments[R]. La Jolla,CA,USA: University of California, San Diego, 2002.

备注/Memo

备注/Memo:
收稿日期: 2016-04-25.
作者简介: 黎雅乐(1986—),女,博士生,讲师;宗周红(联系人),男,博士,教授,博士生导师,zongzh@seu.edu.cn.
基金项目: 国家自然科学基金资助项目(51378112)、江苏省高校自然科学研究资助项目(15KJD580001)、西南交通大学陆地交通地质灾害防治技术国家工程实验室开放基金资助项目(SWJTU-GGS-2014001).
引用本文: 黎雅乐,宗周红,黄学漾,等.强震下钢筋混凝土连续梁桥非线性动力响应分析[J].东南大学学报(自然科学版),2016,46(6):1271-1277. DOI:10.3969/j.issn.1001-0505.2016.06.027.
更新日期/Last Update: 2016-11-20