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贵州省S210线花江大桥建成时为我国跨径最大的薄壁开口箱平转施工的钢筋混凝土箱形拱桥梁,因其跨径最大,无现成经验可参考试。该桥梁成功已否的关键在于薄壁开口箱转体过程中的受力及稳定性。文中对其拱圈的受力进行了分析确保转体过程中应力符合相关要求,尤其是对4种横隔联系的形式进行了转体阶段稳定性分析研究,并选择了较为合适的联接形式上,对以后的类似工程有一定的参考价值。
When the S210 line of Huajiang River Bridge in Guizhou Province is completed, it is the largest reinforced concrete box-arch bridge with thin-walled open cross-section construction in our country. Due to its largest span and no ready-made experience, reference test can be made. The key to the success of the bridge lies in the force and stability of the thin-walled open box during swivel. In this paper, the stress of arch ring is analyzed to ensure that the stress in the process of swiveling meets the relevant requirements, especially the stability analysis of the four types of transversal contact at the swivel stage, and the more appropriate form of connection , After a similar project has a certain reference value.