(中国航空规划建设发展有限公司，北京 100120)

［摘要］现行国家规范对钢桁架转换结构的设计规定甚少，缺乏明确的设计指导原则。钢桁架作为转换构件，需承托楼板、连接次梁等，造成其受力特点与常规桁架相比有所不同。以某科研办公楼转换桁架选型设计为算例，分析其楼板参与受力等性能，包括腹杆约束情况影响、楼板对桁架杆件约束情况影响等，并探讨相应的构造措施。

［关键词］转换层；钢转换桁架；共同工作；约束条件；地震作用

Steel transfer truss analysis and research of a scientific and office building

Zhang Qingliang, Wang Jun, Jia Jie, Cui Guiqin

(China Aviation Planning and Construction Development Co., Ltd., Beijing 100120, China)

Abstract:Now national norm has little content refer to steel transfer truss. Steel truss has its own feature about bearing floor, connecting to junior beam, etc，which make it different from normal truss. As example, a steel transfer truss of a scientific and office building was taken to analyze its load-carrying capability and research corresponding construction.

Keywords:transfer floor; steel transfer truss; common work; restriction condition; seismic effect

作者简介：张庆亮，高级工程师，Email:qingliang1218@163.com。