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大跨斜拉桥混凝土索塔锚固结构形式比较

DOI: 10.3969/j.issn.1674-0696.2014.03.03, PP. 11-15

Keywords: 桥梁工程,索塔锚固结构,静载试验,传力机理,索力分配,承载效率,bridgeengineering,cable-pylonanchorage,statictest,mechanicbehavior,stresssituation,load-carryingefficlency

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Abstract:

:?针对索塔锚同结构常用的两类基本形式(环向预应力和钢混组合结构),结合相关足尺模型试验,详细比较了三种典型锚固构造的传力机制、应力分布、索力分配,总结出各自受力要点和改善应力分布的一些措施;提出承载效率作为评价指标。结果表明:两类形式均适用于大跨斜拉桥,环向预应力锚固形式优势明显。

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