某燃机电厂主厂房大跨度屋架的设计过程  

Design Process of the Large-Span Roof Truss of the Main Workshop of A GasTurbine Power Plant

作　　者：陈卫 刘奕辉 钟志恒 CHEN Wei;LIU Yihui;ZHONG Zhiheng(China Energy Engineering Group Guangdong Electric Power Design Institute Co.,Ltd.,Guangzhou 510663,Guangdong,China;Guangdong YueDian General Energy Company Limited,Huizhou 516082,Guangdong,China)

机构地区：[1]中国能源建设集团广东省电力设计研究院有限公司,广东广州510663 [2]广东粤电大亚湾综合能源有限公司,广东惠州516082

出　　处：《南方能源建设》2024年第S01期89-93,共5页Southern Energy Construction

摘　　要：[目的]燃机电厂的主厂房屋架结构为大跨度空间网架结构,其安全性要求高。设计过程中,结构方案选型,荷载大小等因素对屋架结构的安全性、经济性有着至关重要的影响,研究屋架结构的选型及荷载优化对电厂建设有重要意义。[方法]文章基于某燃机电厂项目,对其主厂房屋架结构,借助SAP2000结构分析设计软件,将混凝土重型屋面及轻型钢屋面两种屋面型式进行设计对比,在保证安全性前提下,优化荷载,减小用钢量。[结果]经设计比较,轻型屋面的单榀屋架结构高度和质量较小,有利于整榀桁架的运输施工,且轻型屋面屋架结构用钢量仅为重型屋面的48.2%。[结论]在类似风环境的地区,采用轻型钢屋面具有施工可行性高、经济效益好的优势。[Introduction]The roof structure of the main workshop of the gas turbine power plant is a long-span space grid structure,which has high safety requirements.In the design process,the selection of structural schemes,loads and other factors have a crucial impact on the safety and economy of the roof truss structure,so it is of great significance to study the selection and load optimization of the roof truss structure for power plant construction.[Method]In this paper,based on a gas turbine power plant project,the roof truss structure of its main workshop was designed and compared with two roofing types of heavy concrete roofing and light steel roofing with the help of SAP2000 structural analysis and design software,so as to optimize the loads and reduce the amount of steel under the premise of ensuring safety.[Result]By design comparison,the height and mass of the single truss structure of the light roofing are smaller,which is conducive to the transportation and construction of the whole truss,and the steel used in the light roofing truss structure is only 48.2%of the steel used in the heavy roofing.[Conclusion]In areas like wind environment,the use of light steel roofing has the advantages of high construction feasibility and good economic benefits.

关 键 词：燃机电厂 大跨度屋架 重型屋面 轻型屋面 优化分析 

分 类 号：TK01[动力工程及工程热物理] TU318[建筑科学—结构工程]