某高层型钢混凝土框架结构基于性能的消能减震加固方案研究  

Research on Performance-Based Shock-Absorbing Reinforcement of a High-Rise SRC Frame Structure

作　　者：吴迈 马士奇 赵欣 WU Mai;MA Shiqi;ZHAO Xin(School of Civil Engineering and Transportation,Hebei University of Technology,Tianjin 300401,China;Jiuyizhuangchen Technology(Group)Co.,Ltd.,Shijiazhuang 050000,China)

机构地区：[1]河北工业大学土木与交通学院,天津300401 [2]九易庄宸科技(集团)股份有限公司,石家庄050000

出　　处：《工业建筑》2023年第10期68-74,共7页Industrial Construction

基　　金：河北省自然科学基金项目(B2015202049)。

摘　　要：以天津市津南区某医院住院用房加固项目为工程背景,基于性能化的减震控制目标,采用三种消能减震加固方案,即方案1(防屈曲支撑加固)、方案2(黏滞阻尼器加固)及方案3(防屈曲支撑+黏滞阻尼器加固),利用SAUSAGE软件对原结构与三种加固结构进行时程分析,并对比三种消能减震加固方案在高层结构中的减震效果。结果表明:多遇地震下采用方案2加固结构,减震效果最好;在罕遇地震作用下,方案1和方案3均优于方案2;采用方案2加固该结构能够达到性能3的减震目标,但不能满足该建筑在罕遇地震下的不间断运行的要求,采用方案1和方案3加固结构均能达到性能2的减震目标,但是结合对结构弱轴方向顶点位移的控制可以看出方案3加固效果要优于方案1。The hospital building reinforcement project in Jinnan District of Tianjin was taken as the engineering background in this study.Based on the performance-based seismic reduction control objectives,three reinforcement schemes of energy dissipation and seismic reduction were adopted,namely scheme 1(buckling restrained brace),scheme 2(viscous damper)and scheme 3(buckling restrained brace+viscous damper).The damping effects of the three reinforcement schemes of energy dissipating and seismic reduction in high-rise structures were compared in according to the time-history analysis results of SAUSAGE software.The study showed that:under the action of frequently occurred earthquakes,using scheme 2 to strengthen the structure had the best damping effect;under the action of rarely occurred earthquakes,schemes 1 and 3 were better than scheme 2;using scheme 2 to reinforce the structure could achieve the damping target of performance 3,but could not meet the requirements of the building’s uninterrupted operation under rarely occurred earthquake.The use of scheme 1 and scheme 3 to strengthen the structure could achieve the seismic reduction target of performance 2.As far as the control of the vertex displacement of the weak axis of the structure,the reinforcement effect of scheme 3 was better than scheme 1.

关 键 词：高层结构 型钢混凝土框架 基于性能 消能减震 抗震加固 

分 类 号：TU973[建筑科学—结构工程]