主子耦合系统地震破坏机理研究与应用  

Research and application on the seismic failure mechanism of primary-secondary coupled system

作　　者：朱丽华[1] 郭昕[1] 白国良[1] 李晓文[1] 

机构地区：[1]西安建筑科技大学,陕西西安710055

出　　处：《土木工程学报》2010年第S1期376-380,共5页China Civil Engineering Journal

基　　金：国家自然科学基金项目资助(50908186);陕西省教育厅自然科学专项(09JK565);西安建筑科技大学人才基金(RC0820)

摘　　要：传统的抗震设计方法将设备系统简化为荷载,这不能准确反映结构与设备的共同作用,为此,有必要将结构系统与设备系统作为主子耦合系统来考虑。根据设备系统在地震作用下的震害现象,研究设备系统的破坏模式和破坏准则;提出主子耦合系统的性能水准和性能目标,分析主子耦合系统的破坏准则;建立直接空冷结构体系主子耦合的有限元计算模型,进行非线性时程分析,考察直接空冷结构体系塑性铰的发展过程,基于数值计算和试验资料提出直接空冷结构体系主子耦合系统的性能目标,可供结构设计使用。The equipment system is commonly simplified as load in the traditional seismic design methods.This can not accurately show the interaction between structure and equipment,so it is necessary to combine the equipment system with structure system as primary-secondary coupled system.Based on the earthquake disaster phenomena of equipment system,the failure modes and failure criteria were researched.The seismic performance levels and seismic performance objectives of primary-secondary coupled system were presented.The failure criteria of primary-secondary system were analyzed.A finite element model of direct air cooled condenser platform which included secondary system was established and the nonlinear history time analysis was done.The development process of the plastic hinge for direct air cooled condenser platform was investigated.According to the numerical calculation and the test data,the seismic performance objectives for the direct air cooled condenser platform primary-secondary coupled system are presented,which can be employed by the structural design.

关 键 词：主子耦合系统 破坏机理 抗震 

分 类 号：TU352.11[建筑科学—结构工程]