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在城市立交中,经常会由于地形条件的限制而出现小半径的曲线梁桥。这种结构受力比直线梁桥复杂,除承受弯矩、剪力外,同时还承受较大的扭矩和翘曲双力矩。近年来,我国已修建了不少曲线梁桥,无论是设计还是施工都取得了很大的进步。但诸如连续曲线梁内侧端支座脱空、曲线梁梁体向外侧径向位移、墩梁固接处在立柱顶部产生环形裂缝等
In the city interchange, often due to the constraints of the topography of a small radius of the curved beam bridge. This kind of structure is more complex than linear beam bridge, besides bearing bending moment and shearing force, it also suffers bigger torque and warping double moment. In recent years, many curved beam bridges have been constructed in our country, and great progress has been made both in design and construction. However, such as continuous curved beam medial end of the support vacant, curved beam body to the outer radial displacement, pier beam fixed at the top of the column to produce annular cracks, etc.