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多跨连续梁桥在悬臂状态下,采用支架法现浇铰接段箱梁时,由于系统温度及温度梯度的存在,现浇段容易产生裂缝。合理分析温度对结构产生的影响,并采取有效的应对措施才能避免裂缝。文章以厄瓜多尔巴巴奥约河大桥的铰接段施工为例,研究温度处理方法及应对措施,为类似工程提供参考。
Multi-span continuous girder bridge in the cantilever state, the use of stent method cast-in-box articulated box girder, due to the existence of system temperature and temperature gradient, cast-prone section prone to cracks. Reasonable analysis of the impact of temperature on the structure, and take effective measures to avoid cracks. Taking the articulated section construction of the Baba Oyo River Bridge in Ecuador as an example, the article studies the temperature treatment method and its countermeasures, and provides references for similar projects.