摘要
以深水柱式桥墩为研究对象,以ABAQUS有限元软件为计算平台,用附加水质量法考虑水对桥墩地震反应的影响,采用3条傅氏谱频谱特征明显不同的地震波,考虑了土体和桥墩混凝土的非线性特征,分析了水位变化对深水柱式桥墩地震反应的影响。结果表明:在不同地震波作用下,水位变化对柱式桥墩的墩顶相对墩底位移、加速度、剪力和弯矩反应均有一定的影响,除个别工况外,其影响规律基本一致。对于深水柱式桥墩抗震设计计算,在考虑水的影响的同时,还要考虑水位变化的影响,这样更符合工程实际情况。
Taking the column pier on deep-water as the research project, computing on the ABAQUS finite element software, using the additional water quality method to consider the water effects on seismic response of the pier,using three earthquake waves with different Fourier spectrum, considering the nonlinear of the soil and the concrete, analyzing the effect of water level change on seismic response of column pier on deep-water. The results show that： the water level change has a certain influence on relative displacement, acceleration, shear force, moment of the pier, and its influence law is basically identical except for the individual eonditions. It is much more comply with the actual situation considering the water influence for seismic design of column pier on deep-water, and also eonsidering effect of water level change.
出处
《四川建筑科学研究》
北大核心
2011年第6期182-186,共5页
Sichuan Building Science
基金
江苏省高校自然科学研究一般项目(06KJB560042)
盐城工学院应用基础研究项目(XKY2009043)
关键词
水位变化
深水柱式桥墩
地震反应
water level change
column pier on deep-water
seismic response
作者简介
李富荣（1982-），男，讲师，硕士，主要从事岩土地震工程和深水桥墩抗震的研究。E-mail：lifurong_yc@163．com
