摘要
根据曲线梁桥常见的结构形式,基于ANSYS建立了四种不同的三维有限元计算模型,每种模型都对应曲率半径从100m到无穷大(直线)10种情况,计算研究了曲线梁桥的地震响应规律。分析了曲率半径的变化对曲线梁桥自振特性的影响,曲率及不同支座类型对曲线梁桥地震响应的变化关系,从中得出一些有价值的结论。
Based on common curved beam bridge, four models of 3-D finite element with ANSYS are set up to analyze seismic response laws. Each model＇s radius varies from 100 meters to infinite. The emphasis is as fob lows. modal response of different curvature bridge; the relationship between the variety of the curvature and the seismic response of the bridge, the relationship between the variety of the isolation bearing and the seismic response of the bridge. Based on the analysis, some valuable conclusions are acquired.
出处
《公路》
北大核心
2013年第1期136-143,共8页
Highway
关键词
曲线梁桥
时程分析法
地震响应
有限元
curved beam bridge
time-history analysis
seismic response
finite element
