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State Road 50 Bridge over State Road 436: Implementation of a Simple-Supported Steel Box Girder System

机译:州路50桥州路436:实施简单支持的钢箱梁系统

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This intersection is one of the most highly traveled and congested intersections in Central Florida. The improvements include the widening of SR 50 and the construction of a bridge over SR 436. The resulting bridge contains a varied span arrangement due to a skewed approach of SR 436. Several superstructure and substructure alternatives were studied. Special aesthetics requirements, Traffic control restrictions, and the construction sequencing also impacted the evaluation of structure types. The use of simple spans reduced the complexity during construction by minimizing the impact on the traveling public. The bents for the bridge were placed normal to the roadway in order to simplify construction. The intermediate bents consist of an inverted T-cap section. This article will discuss the implementation of both the superstructure and substructure design types for this unique project. This includes the use of simply supported box-girders, post-tensioned post-tensioned inverted T-caps, simplified construction sequences, girder shipping lengths, and accelerated erection times.
机译:这个交叉点,在佛罗里达州中部的最高度旅行和拥挤的路口之一。该改进包括的SR 50加宽和桥超过SR 436.将得到的桥含有各种不同的跨度排列的结构由于SR 436的几个上,下部的替换方式的偏斜的方法进行了研究。特殊美学要求,交通管制的限制,施工顺序也影响结构类型的评价。通过最大限度地减少对市民出行的影响,施工期间使用简单跨度的降低了复杂性。电桥的排架置于垂直于道路中,为了简化结构。中间排架由倒T盖部的。本文将讨论上,下部设计类型都执行这个独特的项目。这包括使用简支箱梁的,后张后张-倒T帽,简化的结构序列,梁运输长度,以及加速勃起倍。

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