【摘要】 对3种广泛使用的梁式钢屋盖结构体系——空间桁架结构、预应力桁架结构、张弦梁结构进行了讨论,得出3种结构形式在一定荷载、不同跨度范围的造价曲线,方便工程师进行结构选型,也可作为方案估价和审查之用。更多还原

【Abstract】 Spatial truss, prestressed truss and beam string structure is widely used in the large-span roof structures, in order to find the economic span of three structures, cost curves are drafted under definite loads and different spans.The cost curves are useful for engineers to choose structure forms and it can also be used in project assessment and audit.=更多还原