贵阳市某匝道桥横梁开裂原因分析及处理方案

Cracking Cause Analysis and Treatment Scheme of a Ramp Bridge Beam in Guiyang City

以贵阳市某匝道桥横梁施工事故为工程背景,重点对横梁开裂的原因进行了分析,通过初次检测结果及施工现状,各参建方及时、果断地采用了重新穿索张拉预应力的方案,检测结果表明本事故的处理方案是合理的,效果是明显的,有关经验可为类似工程提供参考、借鉴。

As the construction accident of a ramp bridge beam for the engineering background,the article focuses analysis on the cause of beam cracking.The building and construction units decidedly use the re-cable tensioned prestressing scheme in time according to the primary inspecting test result and construction status.The inspecting test result shows that it is reasonable to use the treatment scheme for this accident.The effect is obvious.The relative experience can be referred for the similar projects.