某医院门诊楼满足中震正常使用要求的设计分析

Design analysis of a hospital outpatient building to meet the normal use requirements under medium earthquakes

某医院门诊综合楼为框架结构,依据《建设工程抗震管理条例》规定,在设防地震时应满足正常使用要求,采用传统抗震方案不能满足要求,需采用隔震减震等技术。本文对隔震减震方案进行了对比分析。采取隔震方案时可充分保证结构设防地震下的正常使用;进一步对比了3种不同的减震方案,综合分析发现粘滞阻尼器和防屈曲支撑混合布置的方案能更好满足中震正常使用位移角限值要求,建议优先选用。本文通过比较隔震和不同的减震方式,为类似医疗建筑的减隔震设计提供参考。

A hospital outpatient complex is a frame structure,and according to“the Regulations on the Administration of Earthquake Resistance of Construction Projects”,it should meet the normal use requirements when it is set up for earthquakes,and the traditional seismic solution cannot meet the requirements,so it is necessary to use seismic isolation and damping technologies.In this paper,a comparative analysis of the seismic isolation and damping scheme is carried out.The seismic isolation scheme can fully ensure the normal use of the structure under the earthquake;three different damping schemes are further compared,comprehensive analysis found that the hybrid arrangement of viscous dampers and anti-buckling bracing can better meet the normal use requirements of the medium earthquake,and it is recommended to give preference to the scheme.By comparing the seismic isolation and different damping methods,this paper provides a reference for the design of similar medical buildings in terms of seismic reduction and isolation.