渡槽贝雷钢拱架稳定性及承载能力分析

以悬拼贝雷钢拱架施工拱圈的某拱式渡槽为背景，通过对拱架结构的稳定性及承载能力进行分析，揭示拱圈现浇过程中拱架的力学行为，并对拱架不同约束形式下其稳定性和承载力的变化进行比较，得出拱架采用固结约束较铰接能显著提高拱架稳定性且不降低拱架承载能力的结论，可为以后类似工程设计施工提供参考。

Analysis for Stability and Bearing Capacity of Aqueduct Bailey Steel Arches

with some arch aqueduct which arch rings are constructed with suspended Bailey steel arches as background, this paper discloses mechanical behaviors of arches during cast-in-situ of arch rings by analyzing stability and bearing capability of arch structures, and compares changes of stability and bearing capability of arches under different constraints to draw a conclusion that consolidation constraint hinge joint adopts for arches can remarkably improve stability of arches without reduction of bearing capability of arches. This conclusion can provide a reference for design and construction of similar projects in the future.