摘要
本文给出了河岸－桥台－桥墩（含桩基）－桥梁体系随机地震反应的整体分析方法。采用刚体单元、梁单元和平面等参单元组成的模拟体系实现相互作用的整体分析．用文献［３］的确定性复反应数值方法求随机地震反应，根据积累疲劳损伤理论和等效结点力法估算体系的永久变形．编制了通用程序ＲＡＮ２Ｄ。作为例子，对－简单的三跨铁路架桥进行了分析。
This article proposes a method of random seismic response for thesystem of bank soil,abutment,pier(including pile group) and bridge. The mixed finite element technique including rigid block element, beam element and planeisoparametric element was used to achieve the above system analysis. The randomseismic response of the complicated system is computed by determinative complexnumerical analysis in reference[3], taking into account the fatigue failurecharacteristic of soils. The permanent deformation of the system is evaluated by theequivalent node force method. In addition the standard program RANZD is developed and a simple three span railway beam-bridge is studied.
出处
《哈尔滨建筑大学学报》
1996年第3期46-52,共7页
Journal of Harbin University of Civil Engineering and Architecture
关键词
桥梁
土体
地震
随机反应
相互作用
earthquake
soil mass
beam -bridge
stochastic analysis
soilstructure interaction
