摘要
反应加速度法与反应位移法是2种规范推荐的地下结构简化抗震设计方法。详细阐述2种方法的核心思想与优缺点。以上海市临港综合区浩通路综合管廊结构为例,以土-结构动力时程法为基准,采用大型通用有限元软件ABAQUS进行建模,具体对比2种方法在上海市7度设防条件下的计算效果。研究表明,相对于反应位移法,反应加速度法的计算过程更为简便,计算结果更为精确。推荐工程设计人员在综合管廊结构抗震设计中选用反应加速度法。
The response acceleration method&the reaction displacement method are recommended by the 2 codes for the simplified seismic design of underground structures.The core ideas,advantages&disadvantages of the 2 methods are described in detail.Taking Haotong Rd.utility tunnel structure in Lingang Comprehensive Area,Shanghai as an example,based on the soilstructure dynamic time-history method,the largescale general finite element software ABAQUS is adopted to build the model,the calculation results of the two methods under the condition of 7 degree fortification in Shanghai are compared.The results show that the calculation process of the reaction acceleration method is simpler and more accurate than that of the reaction displacement method.It is recommended that the engineering engineers adopt the response acceleration method in the seismic design of utility tunnel structure.
作者
吴敏
WU Min(Shanghai Urban Construction Design&Research InstituteCo.,Ltd.,Shanghai 200125,China)
出处
《中国市政工程》
2018年第4期77-79,84,112,共5页
China Municipal Engineering
关键词
综合管廊
抗震设计
反应加速度法
反应位移法
utility tunnel
seismic design
reaction acceleration method
reaction displacement method
