摘要
基于midas有限元桥梁计算软件,建立三跨连续梁桥模型,确定合适的地震波,计算了某设计桥梁在静载作用下的支座摩阻力和汽车制动力对桥墩影响,通过对三跨连续梁桥不同支座在E1地震力作用下的时程分析法计算,得出了地震作用下的桥墩内力情况.结果表明,在E1地震作用下,结构在弹性范围内,采用减震支座和非减震支座的计算影响差别不大,并且严寒地区桥梁的桥墩强度设计是静力计算控制的.
Based on MIDAS finite element Calculation software, the establishment of three span continuous girder bridge model, determine the appropriate seismic waves, calculated design bridge under static load bearing friction and braking force effect on the pier, through the three span continuous girder bridge with different bearings in the role of E1 earthquake force at the time history analysis method, The internal force of bridge piers under seismic ac- tion. The results show that, In the E1 under the action of earthquake, under the action of E1 earthquake, the structure in the elastic range, the little calculation difference of between isolation bearings and the non isolation bearings, in severe cold area pier design of bridges is static calculation control.
出处
《吉林建筑大学学报》
CAS
2014年第1期9-11,15,共4页
Journal of Jilin Jianzhu University
关键词
有限元模型
时程分析法
地震响应
finite element model
time history analysis methods
seismic response
