（北京市建筑设计研究院有限公司， 北京 100045）

［摘要］北京化工大学高精尖创新中心地上部分主要建筑功能为实验室及办公室。主体结构地上10层，结构高度为43-2m，地上结构体系为框架-剪力墙结构。为保证上部实验室仪器的安全及精密性，并防止地震作用下危险化学物品带来的二次灾害，本建筑采用隔震设计。隔震层由铅芯橡胶支座、普通橡胶支座、滑动支座组合而成。在±0m位置处设置橡胶隔震支座，在电梯核心筒处基础顶面设置滑动支座，并在隔震支座下支柱顶设置拉梁。主要阐述框架-剪力墙结构隔震设计的关键及难点问题，重点研究罕遇地震下支座最大拉应力计算分析、隔震支墩设计、核心筒底板滑动支座布置方法等。分析结果表明，采用拉压刚度双线性模型来模拟支座竖向刚度，能够真实地反映大震作用下支座的拉应力状态。

［关键词］框架剪力墙结构； 隔震设计； 橡胶隔震支座； 滑动支座

中图分类号：TU352.12文献标识码：A文章编号：1002-848X(2018)20-0043-06

Isolation design of the High-precision-innovation Center in Beijing University of Chemical Technology

Zhao Can, Kang Zhao, Jiang Yang, Ma Kai, Jin Han, Sun Ke

(Beijing Institute of Architectural Design， Beijing 100045， China)

Abstract:The main building function of the High-precision-innovation Center in Beijing University of Chemical Technology is experiment and office. The main structure is 10 floors above ground with a structure height of 43-2m. The above-ground structural system is a frame-shear wall structure. In order to ensure the safety and precision of the upper laboratory equipment and prevent the secondary disaster caused by dangerous chemicals under earthquake, the isolated technology was adopted in design. The seismically isolated layer was composed of lead-core rubber bearing, ordinary rubber bearing, sliding bearing.  The rubber isolation bearing was arranged at a position of ±0m; the sliding bearing was arranged on the base plate of the elevator core tube. And the tie beam was arranged at the top of the pillar under the seismic isolation bearing. The key and difficult problems in the design of the isolated building, a complex high-rise frame-shear wall structure, were expounded. Calculation and analysis of maximum tensile stress of the rubber isolation bearing under rare earthquake, the design of isolation buttress, and the arrangement method of sliding bearing on the bottom of the core tube were mainly studied. The analysis results show that using the tensile and compression stiffness bilinear model to simulate the vertical stiffness of the bearing can truly reflect the tensile stress state of the bearing under rare earthquake.

Keywords:frame-shear wall structure; isolation design;  rubber isolation bearing; slide bearing

作者简介：赵灿，硕士，工程师，一级注册结构工程师，一级建造师，Email：langzc@126.com。