摘要
昆明某重点设防的高层商业综合体框架结构,采用位移相关型阻尼器和速度相关型阻尼器混用的结构方案。为论证不同类型阻尼器的受力特点及耗能次序,进行多遇地震及罕遇地震的分析。多遇地震阶段,采用弹性时程分析方法对结构减震率、等效阻尼比、支撑框架的倾覆力矩进行分析;罕遇地震阶段,采PERFORM-3D程序对不同时刻的梁、柱、阻尼器的耗能次序进行研究并采取了相应的加强措施。同时,对子结构进行了大震承载力的复核,确保结构安全。
A structure scheme,which is a mixture of displacement-correlation damper and velocity-dependent damper,was adopted by a highly fortified high-rise commercial complex frame structure in Kunming.In order to demonstrate the force characteristics and energy consumption sequence of different types of dampers,analysis of frequent and rare earthquakes were taken.In the phase of frequent earthquakes,the elastic time-history method was used to analyze the structural damping ratio,equivalent damping ratio,and overturning moment of the supporting frame.While in the phase of a rare earthquake,the energy consumption ratio of beams,columns,and dampers at different times were analyzed by the PERFORM-3D program and corresponding measures were taken.At the same time,the bearing capacity of the substructure was reviewed to ensure the safety of the structure.
作者
李文斌
LI Wenbin(Shenzhen Capol International&Associates Co.,Ltd.,Shenzhen 518000,China)
出处
《建筑结构》
CSCD
北大核心
2020年第S02期337-342,共6页
Building Structure
关键词
高烈度高层框架结构
位移型阻尼器
速度型阻尼器
耗能次序
子结构
high-rise frame structure with high-intensity
displacement-correlation damper
velocity-dependent damper
energy consumption sequence
substructure
