空腹式张弦梁在采光顶工程中的应用

以一空腹式张弦梁采光顶工程为背景,通过对普通桁架、普通张弦梁和空腹式张弦梁三种不同类型的采光顶支承结构进行对比分析,得出采用空腹式张弦梁结构不仅能够得到良好的经济效果,而且能使结构设计与建筑功能完美结合。讨论了垂跨比、初始预应力度对空腹式张弦梁结构受力性能的影响。

The application of the frame string in daylighting roof

Through a real project of a frame string structures daylighting roof, the author processed a contrastive analysis about three different bear-force strctures always used in daylighting roof, including the truss, the frame string structures and the beam string structures, found the frame string structures can not only obtain well economic benefit but also make the structure designing and the architecture function leave nothing to desire. The author determined the nature about the effection of the rag-span ratio of cable, the prestress scale of cable to the frame string structures.