（深圳市建筑设计研究总院有限公司， 深圳 518031）

［摘要］嘉峪关第一人民医院位于8度区，为重点设防类建筑。为了提高建筑的抗震性能，采用了基础隔震技术，隔震层由带有铅芯的橡胶支座和不带铅芯的橡胶支座组成。中震作用下隔震结构分析结果表明：隔震支座的水平变形、竖向拉应力、压应力和抗风承载力均能满足规范和技术规程的相关要求；该项目水平减震系数为0-38，结构设计可按7度进行地震作用计算。对采用和不采用隔震技术的结构抗震性能指标进行对比，结果表明采用隔震技术的结构有明显的安全性能提升和经济效益。

［关键词］医疗建筑； 高烈度区； 隔震设计； 橡胶隔震支座

中图分类号：TU352-1文献标识码：A文章编号：1002-848X(2019)24-0067-05

Design and analysis of isolation structure of Jiayuguan First People′s Hospital

Wang Qiwen， Zhou Bin， Tang Xi， Lin Wei， Yang Wanghua

（Shenzhen General Institute of Architectural Design and Research Co. Ltd.， Shenzhen 518031， China）

Abstract:Jiayuguan First People′s Hospital is located in the area with 8 degrees of seismic fortification intensity and is a key seismic fortification building. In order to improve the seismic performance of the building, the base isolation technology was adopted, and the isolation layer was composed of a rubber bearing with a lead core and a rubber bearing without a lead core. The analysis results of the isolated structure under the action of the fortification earthquake show that the horizontal deformation, vertical tensile stress, compressive stress and wind bearing capacity of the seismic isolation bearing can meet the relevant requirements of the specification and technical regulations; the horizontal damping coefficient of the project is 0-38, and the seismic action can be calculated according to the 7 degrees of seismic fortification intensity in the structural design. Comparing the seismic performance indexes of structures with and without isolation technology, the results show that the structure using seismic isolation technology has obvious safety performance improvement and economic benefits.

Keywords:medical building; high seismic fortification intensity area; isolation design; rubber isolation support

作者简介：王启文，博士，教授级高级工程师，Email：470468786@qq.com。