装配式超高层钢-混凝土组合结构设计分析  

Design and analysis of assembled super high-rise steel-concrete composite structure

作　　者：陈江华 渠明 翟喜梅 汪凯超 肖永生 陆万柱 沈洋 查晓雄 CHEN Jianghua;QU Ming;ZHAI Ximei;WANG Kaichao;XIAO Yongsheng;LU Wanzhu;SHEN Yang;ZHA Xiaoxiong(Shenzhen Construction Engineering Quality and Safety Supervision Station,Shenzhen 518034,China;Civil and Environmental Engineering,Harbin Institute of Technology,Shenzhen,Shenzhen 518055,China;China Construction Science and Technology Group South China Limited,Guangzhou 510440,China)

机构地区：[1]深圳市建筑工程质量安全监督总站,深圳518034 [2]哈尔滨工业大学(深圳)土木与环境工程学院,深圳518055 [3]中建科技集团华南有限公司,广州510440

出　　处：《建筑结构》2024年第24期22-28,60,共8页Building Structure

基　　金：国家自然科学基金项目(52178129);深圳市科技计划项目(GJHZ20200731095601006)。

摘　　要：为检验新型装配式超高层钢-凝土组合结构体系的合理性,以某住宅为背景考察其抗震性能和抗风舒适度。首先通过YJK和ETABS软件对该住宅结构进行弹性和弹塑性时程分析,考察结构在地震作用下的受力性能,以及耗能型钢管混凝土组合屈曲约束支撑与黏滞阻尼器在抗震时的工作机制;然后采用AR法编制MATLAB程序,得到各个楼层处的脉动风速时程与脉动风压时程,分析和评估结构的舒适度,分析两种阻尼器在抗风时的工作机制,并研究了黏滞阻尼器参数对舒适度的影响。结果表明:在结构体系中增设黏滞阻尼器可显著提高结构体系的抗风舒适度和小震作用下的耗能能力,增设耗能型钢管混凝土组合屈曲约束支撑可提高结构体系的抗侧刚度和大震作用下的耗能能力,即装配式超高层钢-混凝土组合结构体系设计合理;增大黏滞阻尼器的阻尼系数或者减小速度指数均可提高该住宅结构的抗风舒适度;在结构设计时,应优先将两种阻尼器布置在结构的中下层和41~50层。In order to test the rationality of the new assembled super high-rise steel-concrete composite structure system,the seismic performance and wind resistance comfort of a proposed residential building were investigated.Firstly,the elastic and elastic-plastic time-history analysis of the residential structure was carried out by YJK and ETABS to investigate the mechanical performance of the structure under earthquake,and the working mechanism of energy-consuming concrete-filled steel tube composite buckling restrained brace and viscous damper in earthquake resistance.Then the MATLAB program was compiled with AR method to obtain the time history of fluctuating wind speed and fluctuating wind pressure at each floor,analyze and evaluate the comfort of the structure,analyze the working mechanism of the two dampers in wind resistance,and study the influence of viscous damper parameters on comfort.The results show that adding viscous dampers in the structural system can significantly improve the wind comfort and energy dissipation capacity of the structural system under frequent earthquakes.Adding energy-consuming concrete-filled steel tube composite buckling restrained braces can improve the lateral stiffness and energy dissipation capacity of the structural system under rare earthquakes,the design of the assembled super high-rise steel-concrete composite structural system is reasonable;increasing the damping coefficient of viscous damper or reducing the velocity index of viscous damper can improve the wind comfort of the residential structure.In structural design,two kinds of dampers shall be preferentially arranged in the middle and lower floors and 41~50 floors of the structure.

关 键 词：超高层建筑 装配式建筑 钢-混凝土组合住宅 抗风舒适度 抗震性能 

分 类 号：TU398[建筑科学—结构工程]