地基与重力式桥墩相互作用的非线性地震反应

英文篇名：Nonlinear seismic analysis for gravity bridge pier and foundation
中文刊名：哈尔滨工业大学学报
作者：杨光 ; 张树山 ; 崔军
英文作者：YANG Guang1 ; ZHANG Shu-shan2 ; CUI Jun31. Dept. of Highway and Bridge ; Heilongjiang Institute of Engineering ; Harbin 150001 ; China ; 2. Longjian Highway and Bridge Limite Liability Company of Heilongjiang Province ; Harbin 150010 ; China ; 3. Hangzhou City Construction Scientific Reasearch Bureau ; Hangzhou 310006 ; China
中文关键词：地基土 ; 非线性 ; 相互作用模型 ; 动态响应
英文关键词：groundsill ; nonlinear ; interaction model ; seismic response
出版日期：2003-10-15
机构：黑龙江工程学院路桥系,黑龙江龙建路桥股份有限公司,杭州市城市建设科学研究所黑龙江哈尔滨150050,黑龙江哈尔滨150010,浙江杭州310006
年：2003
期：10
出版单位：哈尔滨工业大学学报

摘要

针对在强烈地震作用下软弱地基上的桥墩有可能会发生桥墩基础提离现象的问题,分析了非线性地基土与非线性重力式桥墩相互作用体系下的地震反应,上部结构恢复力模式取为理想弹塑性模型,下部地基土采用有试验支持的无拉力Winkler弹塑性固结模型。并对一重力式桥墩进行了计算分析,分析结果表明,对于浅基的重力式矮墩,地基的破坏往往先于桥墩的破坏,在进行桥梁抗震设计时,考虑土与桥墩的共同作是必要的。
For possible separation of piers from weak groundsill during strong earthquake, the interaction be- tween nonlinear foundation and gravity bridge pier have been analyzed with unearthly elastical-plastical model used as super structural resilience model and the Winkler elastical-plastical concretion model used as under groundsill model. The conclusion is that bridge pier is destroyed after groundsill, and the interaction between pier and groundsill must be considered in seismic analysis.

引文

[1] 熊建国。基础提离对结构动力特性影响的研究综述[J]。世界地震工程,1988(3) :1-8。
    [2] YIM S C S, CHOPRA A K. Earthquake response of building on Winkler foundation allowed to uplift[A]. Proc WCEEI [C]. San Francisco: [s. n.], 1984．
    [3] WOLF J P. Soil-structure interaction with separation of base mat from soil (lifting off)[J]. Nucl Engng and De sign, 1976, 38: 357-384．
    [4] SHIH C F. Failure or liquid storage tank due to earthquake excitation[A]. EERL[C]. [s. l.]: [s. n.], 1981．
    [5] TOKI K, SATO T, MIURA F. Separation and sliding between soil and structure during strong ground motion[J]. Earthquake Eng Stru Dyn, J981, 9: 263-277．
    [6] 李国豪。桥梁结构稳定与振动(修订版)[M]。北京:中国铁道出版社,1996。