New Bridge Forms Composed of Modular Bridge Panels
New Bridge Forms Composed of Modular Bridge Panels
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由模块化桥板组成的新桥梁形式
DOI：
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发表时间：
2016
期刊：
影响因子：
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通讯作者：
T. Zoli
中科院分区：
文献类型：
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作者：
E. J. Gerbo;C. Casias;A. P. Thrall;T. Zoli
摘要面板式桥梁系统（例如，Bailey、Mabey约翰逊、Acrow）用于梁式桥梁，并已用于军事、民用和救灾应用。然而，设计挑战包括材料效率（每面板数量的跨度平方），横向支撑和实现更长的跨度。这些挑战是通过调查的承诺，实施面板在新的配置与更长的跨度和评估支撑策略。三种新形式（普拉特桁架，弓弦桁架，网络系杆拱）组成的标准长度的面板，形状确定的基础上的几何考虑和结构性能（抗屈曲），提出。一个参数研究评估横向支撑战略梁状和列状配置。新形式的承诺，也结合了发达的支撑战略，通过有限元分析证明。在使用标准长度的面板进行调查之后，优化...
AbstractPanelized bridge systems (e.g., Bailey, Mabey Johnson, Acrow) are intended for girder-type bridges and have been implemented for military, civilian, and disaster relief applications. Design challenges, however, include material efficiency (span squared per number of panels), lateral bracing, and achieving longer spans. These challenges are addressed by investigating the promise of implementing panels in new configurations with longer spans and evaluating bracing strategies. Three new forms (Pratt truss, bowstring truss, and network tied arch) composed of standard length panels, with shapes determined based on geometric considerations and structural performance (resistance to buckling), are presented. A parametric study evaluates lateral bracing strategies for girder-like and column-like configurations. The promise of the new forms, also incorporating the developed bracing strategy, is demonstrated through finite element analyses. Following this investigation using a standard length panel, an optim...