| 扇形弓弦预应力组合结构力学性能影响参数分析 |
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| 引用本文： | 宋彧,胡志礼,杨文侠.扇形弓弦预应力组合结构力学性能影响参数分析[J].兰州理工大学学报,2007,33(2):125-129. |
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| 作者姓名： | 宋彧 胡志礼 杨文侠 |
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| 作者单位： | 1. 兰州理工大学,土木工程学院,甘肃,兰州,730050
2. 武汉市政工程设计研究院,湖北,武汉,430015 |
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| 摘 要： | 阐述扇形弓弦预应力组合结构的概念,介绍该结构的特点和受力机理;运用有限元软件ANSYS对弓弦结构进行静力计算,分析矢跨比、垂跨比、弓梁截面惯性矩和腹杆数目对扇形弓弦预应力组合结构受力性能和变形的影响,得出了这些参数对扇形弓弦预应力组合结构的影响关系.
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| 关 键 词： | 扇形结构 弓弦结构 预应力 矢跨比 垂跨比 弓梁截面惯性矩 腹杆数目 |
| 文章编号： | 1673-5196（2007）02-0125-05 |
| 收稿时间： | 2006-05-08 |
| 修稿时间： | 2006年5月8日 |
Analysis of influencing factors upon mechanical performances of prestressed sector-bowstring structure |
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| SONG Yu,HU Zhi-li,YANG Wen-xia.Analysis of influencing factors upon mechanical performances of prestressed sector-bowstring structure[J].Journal of Lanzhou University of Technology,2007,33(2):125-129. |
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| Authors: | SONG Yu HU Zhi-li YANG Wen-xia |
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| Abstract: | The conception,characteristics and kinetic behavior of the prestressed sector-bowstring structure were described.The finite element software ANSYS was adopted in calculation of static forces.The effect of rise-span ratio of arch and rag-span ratio of cable,moment of inertia of arch,the number of struts on load-bearing capacity and deformation of the structure was analyzed.The relationship between the structure and above-mentioned parameter was obtained. |
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| Keywords: | sector structure bowstring structure prestress rise-span ratio rag-span ratio moment of inertia of arch section number of struts |
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