拆装式桁架型钢结构建筑集成技术应用研究

Research on the application of reusable steel structure building integration technology with steel truss

拆装式桁架型钢结构建筑具有大空间、刚度大、可重复部署等特点,是一种新型的装配式钢结构体系。拆装式桁架型钢结构建筑采用工厂生产的标准化桁架、钢梁、楼架为主要结构受力构件,桁架与钢梁以系列化连接件进行简单机械连接,形成结构受力体系,除此之外,还包括外挂墙板、内隔墙板、轻钢楼架装饰一体化楼板、集成卫浴等建筑组件,可实现多次拆装。通过对拆装式桁架型钢结构关键的技术进行分析,并结合试验楼项目,着重分析结构受力特点,以及对工程项目采用盈建科有限元分析软件进行弹性反应谱分析和采用MIDAS FEA NX有限元分析软件对关键连接件进行弹塑性分析。分析结果表明拆装式桁架型钢结构建筑具有良好的受力性能和重复使用等特点。项目设计方法和思路可为同类型项目提供参考。

The reusable steel structure with truss was a new type of prefabricated steel structure system,which had the characteristics of large space,high stiffness and redeployment.The reusable steel structure building adopted the standardized trusses,steel beams and floor frames produced by the factory as the main structural force members.The truss and steel beam were simply mechanically connected with serial connectors to form the structural force system.In addition,it also included external wall panels,inner wall panels,light steel building frames decorative integrated floor panels,integrated sanitary ware and other building components,which could be disassembly and assembly for many times.Through the analysis of the key technologies of disassembled truss steel structure,combined with the experimental building project,the stress characteristics of the structure were emphatically analyzed,and the elastic response spectrum analysis was carried out by YJK finite element analysis software and the elastic-plastic analysis was carried out by MIDAS FEA NX finite element analysis software for the key connectors.The analysis results showed that the reusable steel structure with steel truss had good mechanical performance and reuse characteristics.The method and thought of project design could provide reference for similar projects.