摘要
对印尼雅万高铁线上超9度地震烈度区的某混凝土连续刚构桥建立有限元模型,采用反应谱分析法进行桥墩强度验算,时程分析法进行桥墩抗剪强度验算和极限转角验算。由于该工程场地的地震加速度超过中国相关规范的范围,在利用MIDAS Civil软件验算分析过程中,手动输入地震加速度和特征周期。计算结果表明,在多遇地震作用下桥梁处于弹性阶段,在罕遇地震作用下桥梁进入塑性阶段,计算结果均未超过规范容许值,桥梁结构满足抗震设防要求。
A finite element model of the concrete continuous rigid frame bridge in area with seismic intensity greater than 9 degrees on the Indonesian Jakarta-Bandung High Speed Rail is established.In this model,the response spectrum analysis is used to check the strength of the pier while the time history analysis to check the shear strength and limit corner of the pier.Due to the earthquake acceleration of this engineering exceeds the scope of Chinese code,the data of earthquake acceleration and characteristic cycle are entered by hand when using MIDAS Civil to analysis.The figures show that the bridge was maintain in the elastic stage during the frequent earthquake,but in the plastic stage when the rare earthquake occurred.All the results do not exceed the admissible value and the bridge structure satisfies the seismic fortification
作者
陈蓉
侯敏
李立君
CHEN Rong;HOU Min;LI Li-jun(Faculty of Civil Engineering and Mechanics,Kunming University of Science and Technology,Kunming 650500,China)
出处
《价值工程》
2018年第12期142-145,共4页
Value Engineering
关键词
连续刚构桥
地震烈度
反应谱分析
时程分析
continuous rigid frame bridge
seismic intensity
response spectrum analysis
time history analysis
