大跨度钢桁架结构分段调整拼装技术探讨

Discussion on Sectional Adjustment and Assembly Technology of Large-span Steel Truss Structure

钢桁架结构凭借自身造型优美、可发挥材料强度、结构受力合理的优势,近年来在大跨度建筑项目中得到广泛应用。大跨度建筑结构功能多样化、造型复杂化,对工期要求通常“前紧后松”,对项目现场钢桁架拼装过程采用增大桁架分段的方式,能显著提升施工速度。对大跨度钢桁架结构分段调整拼装技术的应用进行了研究,可为以后类似项目提供参考。

Steel truss structure has been widely used in large-span building projects in recent years because of its beautiful shape,material strength and reasonable structural stress.For long-span building structures,their functions are diversified and their shapes are complex,and the requirements for construction period are usually“tight in front and loose in the back”.The method of increasing truss sections is adopted in the assembly process of steel trusses on the project site,which can significantly improve the construction speed.This paper mainly studies the application of segmental adjustment and assembly technology of large-span steel truss structure,which is intended to provide reference for similar projects in the future.