三官汉江矮塔斜拉桥索塔节段模型试验研究

通过有限元分析与索塔模型试验相结合的方法,对武汉市三官汉江公路矮塔斜拉桥索的塔锚固区进行受力分析及验证索塔锚固区带单侧双向抗滑装置的静载抗滑性能研究,通过试验模拟实桥运营阶段的单根钢绞线换索过程,为设计和施工提供技术支持。试验结果表明,该桥索塔锚固区结构受力安全、索塔锚固区抗滑构造及单根钢绞线换索工艺满足设计和规范要求。

Experimental study on pylon segment model of Sanguan Hanjiang low pylon cable-stayed bridge

By combining finite element analysis with cable tower model test, the stress analysis of the tower anchorage area of the low pylon cable-stayed bridge in Sanguan Hanjiang Highway, Wuhan City, was carried out to verify the static load and anti-slip performance of the single-sided bidirectional anti-slip device of the cable tower anchorage zone. The cable replacement process of a single steel strand in the operation stage of the real bridge was simulated by test, which provided technical support for design and construction. The test results show that the structure of the cable pylon anchorage area of the bridge is safe under stress, the anti-slip structure of the cable pylon anchorage area and the cable changing process of a single steel strand meet the design and specification requirements.