【作者】 闫鹏；

【导师】 胡兆同；

【作者基本信息】 长安大学 ， 桥梁与隧道工程， 2011， 硕士

【摘要】 波形钢腹板组合梁是一种新型的钢-混凝土组合结构,由于其良好的受力性能在日本和欧美得到了广泛的应用,其特点在于它充分利用了混凝土和钢的材料优点。这种结构能够实现主梁的轻型化,进而减少下部结构的工程数量。本文首先介绍了波形钢腹板箱梁桥的发展概况、结构体系构造特征(包括波纹钢腹板的形状及抗剪连接件的类型等),以及结构受力特点。根据该结构在国内外的研究状况,提出了本文主要的研究内容。本文结合国外已有的分析成果及建成的波形钢腹板桥梁,对实桥中采用的梯形波形钢腹板的受力行为进行了理论分析,包括波形钢腹板的轴向变形、局部屈曲、整体屈曲、合成屈曲稳定性等力学特性。应用有限元软件ANSYS,本文分析波形钢腹板PC组合弯箱梁桥力学特性：(1)通过一个实例有限元计算结果与试验结果的对比,验证了本文建模分析方法的正确性。(2)运用有限元分析软件ANSYS,对比、分析波形钢腹板PC组合弯箱梁桥与传统PC弯箱梁桥的力学性能。(3)分析不同曲率半径、支座偏心、横隔板布置对波形钢腹板PC组合弯箱梁桥变形与受力的影响。更多还原

【Abstract】 Corrugated steel webs build-up beam, a new type of steel-concrete structure, with its good stress performance, has been widely used in Japan, Europe and America. The build-up beam makes full use of the character of both concrete and steel, and it can realise the lightening of the main beam, which will processingly alleviate the engineer of the underlying structure.This paper firstly introduces the development and structure character (including the shape of the corrugated steel webs, the type of the shear connect, et al) of the corrugated steel webs build-up box girder bridge, as well as its structure stress characteristic. According to the research status aboard and in, proposed the main research in this paper.On the basis of the existing analysis result and the built corrugated steel webs bridge, take a theory analysis on the stress behavior of trapezoidal corrugated steel webs applied in built bridges, including the mechanics properties about the axial deformation, local bulking, overall bulking, synthesis bulking stability, et al.Analysis the mechanics properties of PC curved box girder bridge with corrugated steel webs, by means of general finite element analysis software ANSYS:(1) Verify the validity of the model, through a comparison of ANSYS result and experiment result.(2) Compare and analysis the mechanic properties of PC curved box girder bridge with corrugated steel webs and the traditional PC curved box girder bridge by means of ANSYS.(3) Analysis the influence of different curvature radius, bearings, and horizontal clapboard eccentric decorate to the deformation and stress performance of PC curved box girder bridge with corrugated steel webs更多还原