摘要
针对地下厂房衬砌与围岩的动力相互作用特点,提出了一种考虑接触面黏结特性的动接触力算法.该算法考虑了接触面间的黏结作用,可模拟计算动力作用下接触面的黏结接触、滑动接触和分离三种状态,适合地下厂房混凝土结构和围岩这种大型复杂接触系统动力计算.基于此接触面算法,采用自主开发的动力计算平台SUCED,对映秀湾水电站主厂房结构进行了动力分析.数值分析表明:考虑接触面粘结特性的动接触力算法是合理而有效的,计算结果揭示了地下厂房结构的震损演化过程与特点,为其抗震设计提供了理论依据.
According to dynamic interaction characteristics of lining and surrounding rock, a dynamic contact force method considering cohesive property was introduced. The method is able to simulate contacting states of adhesive contact, sliding contact and separation by accounting interfacial adhe- sion. It is applicable for numerical analysis of the large and complex dynamic contact system of con- crete structure and surrounding rock of underground powerhouse. The dynamic response analysis of Yingxiuwan underground powerhouse concrete structure was conducted using this method based on dynamic computing platform SUCED. Numerical calculation shows that the dynamic contact force method considering cohesive property is reasonable. The calculation results reveal the evolution and characteristics of earthquake damage and provide effective theoretical basis for the seismic design of underground powerhouse concrete structure.
出处
《华中科技大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2014年第4期106-110,共5页
Journal of Huazhong University of Science and Technology(Natural Science Edition)
基金
国家重点基础研究发展计划资助项目(2010CB732005)
国家自然科学基金重大研究计划资助项目(91215301)
国家自然科学基金资助项目(51279136
51209164)
中央高校基本科研业务费专项资金资助项目(2012206020203)
关键词
动接触力法
地下厂房结构
震损特性
数值分析
震后调查
抗震设计
dynamic contact force method
underground powerhouse structure
characteristic of seis-mic damage
numerical analysis
post-earthquake investigation~ anti-seismic design
