EFFECTS OF SOME PARAMETERS ON MECHANICAL PERFORMANCE OF THE BEAM STRING STRUCTURE
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摘要: 张弦梁结构已在我国大型工程中有所应用,但对该种结构的理论研究并不完善。通过分析在全跨荷载或半跨荷载作用下,初始缺陷、矢跨比、垂跨比和预应力水平对结构承载性能的影响,得出拱矢跨比基于承载性能的最优值。对张弦梁结构的设计具有有益的参考。Abstract: Beam-string structures have been adopted in several large-span structures. However, theoretical analysis of this kind of structures has not been well established. The effects of the imperfections, rise-span ratio, sag-span ratio and prestressing value on the mechanical performance are researched under uniform ful-l span load and hal-f span load. So the optimal rise-span ratio of the arch is obtained. These conclusions provide some useful suggestions for the design of beamstring structures.
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Key words:
- beam string structure /
- imperfections /
- rise-span ratio /
- sag-span ratio /
- prestressing
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张志宏, 张明山, 董石麟. 张弦梁结构若干问题的探讨. 工程力学, 2004, 21(6) : 26-30 [2] 蒋剑峰. 平面预应力索拱结构的性能分析和优化设计: [硕士学位论文]. 南京: 东南大学土木工程学院, 2003 [3] 张 勇, 田向阳, 王元清, 等. 张弦梁结构弹塑性大位移分析. 北京交通大学学报, 2005, 29(4) : 19-24 [4] 郭彦林, 郭宇飞, 盛和太. 桁架拱的稳定性能及其应用PP第十一届空间结构学术会议论文集. 南京: 2005: 260-265
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