FULL-DEPTH MODULAR PRECAST, PRESTRESSED BRIDGE DECKS
FULL-DEPTH MODULAR PRECAST, PRESTRESSED BRIDGE DECKS
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全深度模块化预制预应力桥面板
DOI：
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发表时间：
1983
期刊：
影响因子：
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通讯作者：
R. H. Berger
中科院分区：
文献类型：
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作者：
R. H. Berger
自1967年以来，预制模块化桥面结构已成功使用。它仍然以适度但有效的方式使用，如几个装置所示。用于连接面板与支撑结构、提供复合作用、允许垂直调整以及在相邻面板之间形成抗剪性的细节至关重要。设计中应包括防止化学渗透的甲板保护系统。对四个设计实例的施工成本进行了估算，并与传统现浇施工的成本进行了比较。在每种情况下，模块化系统都被证明更经济。预制预应力桥面板的优点包括：结构效率更高、所需支撑元件数量减少、施工时间更短、更换桥面板时交通中断减少、通过减少恒载增加现有结构承载力的潜力以及更好的质量控制。（作者）
Precast modular deck construction has been used successfully since 1967. It is still used in a modest but effective fashion, as exemplified by several installations. The details used to connect the panels to the supporting structures, provide composite action, permit vertical adjustment, and develop shear resistance between adjacent panels are critical. A deck protection system to prevent chemical penetration should be incorporated in the design. Construction costs were estimated for four design examples and compared with costs of conventional cast-in-place construction. In each case, the modular system proved to be more economical. Benefits of precast, prestressed decks include greater structural efficiency, reduction in the number of support elements required, less construction time, reduction in interruption to traffic for replacement decks, potential for increasing capacity of existing structures through reduction in dead load, and better quality control. (Author)