屈曲约束支撑-框架结构体系在高层医院的应用研究  

Research on the Application of buckling-constrained brace-frame structure system in high-rise hospital

作　　者：洪晓晖 HONG Xiaohui(Fujian Construction Engineering Group Co.,Ltd.Design Branch,Fuzhou 350001)

机构地区：[1]福建建工集团有限责任公司设计分公司,福建福州350001

出　　处：《福建建筑》2025年第2期32-37,共6页Fujian Architecture & Construction

摘　　要：以某高层医院(建筑高度约60m)为例,分析减震器参数及布置,通过有限元分析软件,进行多模型的对比计算,并进行弹性时程分析和弹塑性时程分析。由计算结果可知,屈曲约束支撑(BRB)-混凝土框架结构体系在现代高层医院应用的合理性,可解决此类建筑采用常规框架-剪力墙结构所存在的局限性。结果表明:屈曲约束支撑(BRB)-混凝土框架结构体系,可以有效解决剪力墙偏置导致扭转效应明显等问题,提高结构方案的合理性。同时,采用屈曲约束支撑(BRB),满足减震目标和抗震性能要求,符合国家关于“高烈度区、地震重点监视防御区对新建医院应采用减震隔震等技术,保证发生本地区设防地震时能够满足正常使用要求”的应用规定。Taking a high-rise hospital(with a building height of about 60m)as an example,the parameters and arrangement of shock absorbers were introduced.Multiple models were compared and calculated using finite element analysis software,and elastic and elastic-plastic time history analyses were conducted.The calculation results showed that the Buckling Constrained Bracing(BRB)-Concrete Frame Structure System is reasonable in modern high-rise hospitals and can solve the limitations of using conventional frame shear wall structures in such buildings.The results indicate that the Buckling Constrained Bracing(BRB)concrete frame structure system can effectively solve the problems of significant torsional effects caused by shear wall bias,and improve the rationality of the structural scheme.At the same time,Buckling Constrained Bracing(BRB)is used to meet the requirements of seismic reduction targets and seismic performance,in accordance with the national application regulations on"seismic isolation and other technologies should be adopted for newly built hospitals in high-intensity areas and earthquake key monitoring and defense areas to ensure that they can meet the normal use requirements in the event of earthquakes in the local area.".

关 键 词：屈曲约束支撑 高层医院 抗震性能 耗能 减震 

分 类 号：TU3[建筑科学—结构工程]