摘要
采用有限元分析程序ANSYS,对位于地震区的某预应力钢筋混凝土连续刚构桥,采用空间梁单元BEAM188建立了有限元分析模型,进行了全桥结构动力特性分析,并分别运用谱分析和时程分析方法计算了全桥50年超越概率2%和10%横桥向和纵桥向激励下的地震响应,得到了关键截面的内力响应峰值和位移响应峰值。
With the FEM software ANSYS, this paper creates a spatial model of a prestressed concrete continuous rigidframe bridge located in seismic areas with element BEAM188, Dynamic characteristics of this bridge are analyzed; seismic responses under transverse or longitudinal excitation of 50years 296 and 10% transcendental probability are calculated using spectrum analysis method and time - history analysis method respectively; and internal force response and displacement response of crucial sections are obtained.
出处
《国外建材科技》
2007年第3期93-95,共3页
Science and Technology of Overseas Building Materials
关键词
连续刚构桥
谱分析
动力时程分析
地震响应
continuous rigid-frame bridge
spectrum analysis
dynamic time-history analysis
seismic responses
