钢混厂房结构多层次模拟与疲劳损伤累积的循环块更新算法  

SIMULATION OF FATIGUE DAMAGE EVOLUTION BY BLOCK UPDATE FOR REINFORCED-CONCRETE INDUSTRIAL BUILDING

作　　者：吴佰建[1,2] 唐一萌 李兆霞[1,2] WU Baijian;ANG Yimeng;LI Zhaoxia(School of Civil Engineering,Southeast University,Nanjing 210096,China;Jiangsu Key Laboratory of Engineering Mechanics,Southeast University,Nanjing 210096,China)

机构地区：[1]东南大学土木工程学院,南京210096 [2]东南大学,江苏省工程力学分析重点实验室,南京210096

出　　处：《工业建筑》2018年第11期25-29,共5页Industrial Construction

基　　金：“十三五”国家重点研发计划资助(2016YFC0701301);中央高校基本科研经费资助

摘　　要：为了研究钢混厂房结构的疲劳损伤演化过程,提出了一种基于连续损伤力学并且适用于混凝土材料的疲劳损伤累积方法。针对传统疲劳损伤累积方法的不足,考虑了循环块间应力幅更新的影响,并通过钢混厂房的多层次数值仿真模型实现了结构疲劳损伤演化过程的模拟。In order to study the fatigue damage evolution process of reinforced-concrete industrial building,a concrete fatigue damage accumulation method based on continuous damage mechanics was proposed.Furthermore,for the deficiency of the traditional fatigue damage accumulation method,the influence of the update of stress amplitude between looping blocks was taken into account.Then the fatigue evolution process of structural fatigue was simulated by multi-level simulation model of reinforced-concrete industrial building.

关 键 词：损伤演化 钢混厂房 疲劳 循环块更新 

分 类 号：TU375[建筑科学—结构工程]