某超高层盒式筒中筒结构弹塑性时程分析  

Elastic-plastic time-history analysis of reinforced concrete space-grid box-tube structure of super high-rise building

作　　者：段学科 王其明 尹新生[3] DUAN Xueke;WANG Qiming;YIN Xinsheng(Civil Aviation Engineering Quality Supervision Station,BeiJing 100102, China;China Aerospace Construction Group CO.,LTD,BeiJing 100071, China;The research Centre of Green Architecture Technology in Cold Area of Jilin Architectural University, Changchun 130118, China)

机构地区：[1]民航专业工程质量监督总站,北京100102 [2]中国航天建设集团有限公司,北京100071 [3]吉林建筑大学寒地绿色建筑工程技术研究中心,吉林长春130118

出　　处：《四川建材》2020年第11期235-238,共4页Sichuan Building Materials

摘　　要：近年来,盒式筒中筒结构作为一种新型结构体系应用日渐广泛。为了探索该结构型式在罕遇地震下的地震响应,采用通用有限元软件ABAQUS对某超高层盒式筒中筒结构进行了大震作用下的弹塑性时程分析,从楼层位移、构件损伤的角度,摸索该结构的抗震优势。研究结果表明:该体系外部网格式框架与内部核心筒具有良好的刚度比与协调性,结构变形曲线介于弯曲型与剪切型之间,层间位移相对均匀;连梁体系、密肋井字梁和框架柱组成了多重塑性耗能机制,主要抗侧力构件未发生严重破坏,总体表现出良好的抗震性能。In recent years,reinforced concrete space-grid box-tube structure as a new type of structure system is widely used.In order to investigate the response of the structure under severe earthquake,base on the abaqus software,research on elastic-plastic time-history analysis of reinforced concrete space-grid box-tube structure of super high-rise building under expected rare earthquakes.Then,from the angles of the floor displacement and damage component,the advantage of the seismic performance of the structure was evaluated.The results show that not only between the system external grid frame and the internal core tube are good stiffness ratio and coordination,but also structural deformation curve is between bending type and shear type,and story drift is relatively homogeneous.Furthermore,both coupling beams of the system,dense ribbed well cavity beam,column compose of multiple plastic energy dissipation mechanism,and the main lateral force-resisting members did not occur serious damage.It is obvious that deformation and seismic performance of the structure is good.

关 键 词：盒式筒中筒 弹塑性动力时程分析 损伤 

分 类 号：TU973.2[建筑科学—结构工程]