| 拱肋倾角对刚性系杆拱桥受力性能的影响 |
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| 引用本文： | 许力沱,王海良,常春伟. 拱肋倾角对刚性系杆拱桥受力性能的影响[J]. 工业建筑, 2012, 0(Z1): 278-282 |
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| 作者姓名： | 许力沱 王海良 常春伟 |
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| 作者单位： | 天津城市建设学院土木工程系;解放军军事交通学院 |
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| 基金项目： | 总后军事交通运输部重点项目(BJJ10J001);天津市自然科学基金重点项目(12JCZDJC28900) |
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| 摘 要： | 采用MIDAS/Civil软件系统,以某跨度为96m的刚性系杆拱桥为例,分两种工况研究了该桥在恒载和恒载+活载作用下拱肋倾角变化对该体系桥梁受力性能的影响。研究结果表明:拱肋倾角变化对其自身变形、应力等受力性能影响较大,对结构动力特性及稳定性影响也较大,对系梁影响相对较小;研究表明:在跨度100m左右的刚性系杆拱桥中,设计时的拱肋倾角取值与施工过程中拱肋倾角偏差值应该控制在-3°～2°。研究结果可为同类型的桥梁设计与施工提供参考。
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| 关 键 词： | 刚性系杆拱桥 拱肋倾角 受力性能 影响研究 |
EFFECT OF OBLIQUE ANGLES OF ARCH RIBS ON MECHANICAL BEHAVIOR OF RIGID TIED ARCH BRIDGE |
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| Xu Lituo,Wang Hailiang,Chang Chunwei. EFFECT OF OBLIQUE ANGLES OF ARCH RIBS ON MECHANICAL BEHAVIOR OF RIGID TIED ARCH BRIDGE[J]. Industrial Construction, 2012, 0(Z1): 278-282 |
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| Authors: | Xu Lituo Wang Hailiang Chang Chunwei |
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| Affiliation: | 1.Department of Civil Engineering,Tianjin Institute of Urban Construction,Tianjin 300384,China; 2.Military Transportation University,Tianjin 300161,China) |
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| Abstract: | Based on a 96-meter-span rigid tied arch bridge,the software MIDAS/Civil is used to research the effect of oblique angles of arch ribs on mechanical behavior of rigid tied arch bridge under dead load and dead plus live loads for two load cases.The research results show that oblique angles of arch ribs would have greater effect on its deformation and stress.It also has large effect on bridge dynamic characteristic and stability,and there is slight effect on tied bar.The results show that the design oblique angles of arch ribs and the deviation oblique angles of arch ribs in the construction process should be controlled between-3° to 2°on about 100-meter-span rigid tied arch bridge.The research results may be applied to the design and the construction of similar rigid tied arch bridges. |
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| Keywords: | rigid tied arch bridge oblique angles of arch ribs mechanical behavior effect research |
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