| 空间缆索自锚式悬索桥体系转换过程中受力行为的全桥模型试验研究 |
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| 引用本文： | 张俊平,黄海云,刘爱荣,梅力彪,李永河.空间缆索自锚式悬索桥体系转换过程中受力行为的全桥模型试验研究[J].土木工程学报,2011(2):108-115. |
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| 作者姓名： | 张俊平 黄海云 刘爱荣 梅力彪 李永河 |
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| 作者单位： | 广州大学; |
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| 基金项目： | 国家自然科学基金(50878059) |
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| 摘 要： | 依据广州猎德大桥1/10比例全桥模型试验的实测数据,系统深入地研究空间缆索自锚式悬索桥体系转换过程中的非线性受力行为,揭示利用叠加原理、按照线性化计算二期恒载及活载效应的合理性,分析主缆变形、吊索索力在体系转换过程中的演变规律,阐明主缆变形、吊索索力变化规律与体系转换状态的相关性,指出吊索索力、主缆位移的弱相干性特征仅适用于加劲梁完全脱架、转换为自平衡体系后的结构状态,得出空间缆索索夹横向扭转角的量值特征与分布规律,指出此扭转角可通过预设偏角予以抵消,提出自锚式悬索桥宜按两阶段进行施工控制,探讨各阶段的施工控制目标与控制目标,为同类桥梁的设计及施工控制提供借鉴。
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| 关 键 词： | 自锚式悬索桥 全桥模型试验 体系转换 索力 主缆位移 索夹扭转角 |
An overall bridge model test study on the mechanical behaviors in the process of system transformation of self-anchored suspension bridge with spatial cable system |
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| Zhang Junping Huang Haiyun Liu Airong Mei Libiao Li Yonghe.An overall bridge model test study on the mechanical behaviors in the process of system transformation of self-anchored suspension bridge with spatial cable system[J].China Civil Engineering Journal,2011(2):108-115. |
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| Authors: | Zhang Junping Huang Haiyun Liu Airong Mei Libiao Li Yonghe |
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| Affiliation: | Zhang Junping Huang Haiyun Liu Airong Mei Libiao Li Yonghe (Guangzhou University,Guangzhou 510006,China) |
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| Abstract: | According to the measurement data of a 1/10 overall model test of Liede Bridge in Guangzhou,a systematic and in-depth study of the nonlinear mechanical behaviors of self-anchored suspension bridge in the process of structural system transformation was carried out.It revealed that use of the superposition principle and in accordance with the linearization theory to calculate the action effects of second period dead load and live loads was reasonable.The evolution of the main cable deformation and hanger tens... |
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| Keywords: | self-anchored suspension bridge overall bridge model test transformation of structural system hanger tension displacement of the main cable lateral torsion angle of cable clamp |
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