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对大跨连续曲线钢箱梁桥的静力特性做了研究分析,并以某工程实例桥为背景进行了结构有限元仿真分析,分析结果表明:曲线钢箱梁桥扭转效应影响着支座的反力,支座的脱空和“爬梁”等病害应通过结构分析予以避免,钢箱梁桥的承载能力、容许应力不是结构设计的主要矛盾,而钢箱梁较柔的特点使得挠度是控制设计的重要因素。
The static characteristics of the continuous curved steel-concrete girder bridge with large span are studied and analyzed. The structural finite element simulation is carried out with the bridge of a project as an example. The results show that the torsional effect of the curved steel- The reaction force, the emptying of the support and the “climbing beam” and other diseases should be avoided through the structural analysis. The bearing capacity and allowable stress of the steel box girder bridge are not the main contradictions of the structural design. The softer features of the steel box beam make Deflection is an important factor in controlling the design.