（同济大学建筑设计研究院（集团）有限公司， 上海 200092）

［摘要］北京学校中学部教学楼采用多层钢框架结构体系，为高烈度区学校建筑，为进一步提高其抗震性能水准，采用了消能减震技术。通过对金属阻尼器、筒式黏滞阻尼器和黏滞阻尼墙等典型减震技术的多方案综合比选，最终确定采用黏滞阻尼墙方案，并给出了适用于中小体量建筑的小尺寸黏滞阻尼墙设计。经计算分析可知，采用该消能减震技术后，小震作用下结构基底剪力和层间位移角的减震效果显著，最大层间位移角远小于规范限值要求；大震作用下结构减震效果良好，弹塑性层间位移角满足既定性能目标，主体结构构件大部分处于不屈服状态，仅个别构件出现轻微损伤，大震下结构抗震性能优越。

［关键词］多层钢结构； 消能减震； 黏滞阻尼墙； 附加阻尼比； 弹塑性时程分析

中图分类号：TU398-7文献标识码：A文章编号：1002-848X(2020)13-0095-06

Energy dissipation analysis and design of middle school teaching building of Beijing School

ZHANG Tao, GENG Yaoming, KONG Qingyu

(Tongji Architectural Design (Group) Co., Ltd., Shanghai 200092, China)

Abstract:The  middle school teaching building of Beijing School adopts a multi-layer steel frame structural system, which is a school building in the high seismic fortification intensity area. In order to further improve its seismic performance, energy dissipation technologies were used. Through the comprehensive comparison and selection of typical damping technologies such as metal dampers, cylindrical viscous dampers and viscous damping walls, the viscous damping wall plan was finally determined, and the small size suitable viscous damper wall for small and medium-sized buildings was provided. Through calculation and analysis, it can be seen that after using this energy dissipation technology, the damping effect of the base shear and interlayer displacement angle of the structure under frequent earthquakes is significant, and the maximum interlayer displacement angle is far less than the specification limit requirements; the damping effect of the structure under rare earthquakes is good, and the elastoplastic interlayer displacement angle meets the set performance goals, and most of the main structural members are in non-yielding state, and only a few members are slightly damaged, and the structure has excellent seismic performance under rare earthquakes.

Keywords:multi-layer steel structure; energy dissipation; viscous damper wall; additional damping ratio; elastoplastic time-history analysis

作者简介：张涛，硕士，高级工程师，一级注册结构工程师，英国特许注册结构工程师，Email：32zt@tjad.cn。