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大跨度拱桥拱肋顺桥向风荷载计算方法研究

Guangdong Building Materials(2021)

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Abstract
拱桥是曲线抬升形式,单纯考虑以摩擦力形式的顺桥向风荷载对拱桥的作用是偏于不安全的.在对拱肋顺桥向风荷载计算进行详细分析的基础上,给出了基于悬链线方程的理论解.同时,基于力学模型,提出了基于考虑折减系数的门式刚架风荷载计算方法计算拱桥顺风向风荷载,同时,对折减系数进行了参数识别分析,给出了在常规矢跨比与拱轴系数下,折减系数的简化计算模型.
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