A theoretical investigation of the dynamic impact factors for straight and curved composite cellular bridges is performed in this thesis. The bridges are modelled as three-dimensional solid structures using commercially available software u22ABAQUSu22 to simulate the bridge geometry and vehicle loading. The vehicle loads are modelled as a pair of two concentrated forces moving along in circumferential paths. Extensive parametric study is conducted, in which 120 composite multi-cell bridge prototypes are analyzed to: (1) evaluate their first natural frequencies; (2) evaluate their impact factors for moment, reaction, and deflection under truck loading conditions. The key parameters considered in this study are: number and area of cross-bracing and top-chord systems, number of cells, number of lanes, degree of curvature, span length, and loading conditions. Based on the data generated from the parametric study, expressions for dynamic impact factors for moment, reaction, and deflection are proposed.* (Abstract shortened by UMI.) *This dissertation includes a CD that is compound (contains both a paper copy and a CD as part of the dissertation). The CD requires the following application: Microsoft Office. Source: Masters Abstracts International, Volume: 41-01, page: 0279. Adviser: John B. Kennedy. Thesis (M.A.Sc.)--University of Windsor (Canada), 2001.
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机译：本文对直弯复合蜂窝桥的动力影响因素进行了理论研究。使用市售软件 u22ABAQUS u22将桥梁建模为三维实体结构，以模拟桥梁的几何形状和车辆载荷。车辆载荷被建模为沿圆周路径运动的一对两个集中力。进行了广泛的参数研究，其中分析了120个复合多单元桥原型，以：（1）评估其第一个固有频率； （2）评估它们在卡车装载条件下的力矩，反作用力和挠度的影响因素。在这项研究中考虑的关键参数是：交叉支撑和顶弦系统的数量和面积，单元数量，车道数量，曲率度，跨度长度和载荷条件。基于参数研究的数据，提出了力矩，反作用力和挠度的动态影响因素的表达式。*（摘要由UMI缩短。）*本文包括一张复合CD（包含纸质副本和CD）。 CD作为论文的一部分）。该CD需要以下应用程序：Microsoft Office。资料来源：国际硕士摘要，第41-01页，第0279页。顾问：约翰·肯尼迪（John B. Kennedy）。论文（硕士）-温莎大学（加拿大），2001。
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