多层钢结构厂房结构及节点性能化设计  

Performance-based Design of Nodes in Multi-story Steel Structure Factory Buildings

作　　者：冯雷 刘祥 张月楼 张良兰 彭成波 FENG Lei;LIU Xiang;ZHANG Yue-lou;ZHANG Liang-lan;PENG Cheng-bo(China Construction Eighth Engineering Division Co.,Ltd.,Steel Structure Engineering Company,Shanghai 200125,China)

机构地区：[1]中建八局新型建造工程有限公司,上海200125

出　　处：《价值工程》2023年第29期94-96,共3页Value Engineering

摘　　要：根据钢标性能化设计,采用“低延性-高承载力”的抗震设计思路,对某常规设计的多层钢结构厂房进行性能化设计,对实际性能化设计过程中产生的问题进行分析阐述,证明采用合理承载力性能等级和延性等级结构设计是成立的,在节点设计时性能化设计是更为合理的计算方式,并通过对比钢结构工业厂房常规设计和性能化设计,对用钢量方面做比较,得出结构总用钢量可以减少10%的结论,在烈度不高的工业建筑中采用性能化设计对节约钢材用量产生了积极效果,为钢结构优化设计提供了新的方向。对组合钢次梁截面优化,探索组合梁更加合理的受力计算模式,得出上小下大截面组合梁相近应力比的情况下能节省40%的钢材用量的结论。According to the performance-based design of steel standard,the performance-based design of a multi-storey steel structure factory building with conventional design is carried out by adopting the seismic design idea of"low ductility-high bearing capacity",and the problems arising in the actual performance-based design process are analyzed and expounded,which proves that the structural design with reasonable bearing capacity performance grade and ductility grade is established,and the performance-based design is a more reasonable calculation method in joint design.By comparing the conventional design and performance-based design of steel structure industrial workshop,the steel consumption is compared,and it is concluded that the total steel consumption of the structure can be reduced by 10%.The performance-based design in industrial buildings with low intensity has a positive effect on saving steel consumption,which provides a new direction for the optimal design of steel structure.By optimizing the section of composite steel secondary beam,a more reasonable stress calculation model of composite beam is explored,and it is concluded that the steel consumption can be saved by 40%under the condition of similar stress ratio of composite beam with small upper section and large lower section.

关 键 词：性能化设计 低延性-高承载力 多层钢结构框架 

分 类 号：TU392.5[建筑科学—结构工程]