This paper discusses some problems about bridge superstructure, bridge substructure and bridge decking of city bridge design.

本文就城市桥梁设计中的桥梁上、下部结构及桥面系结构设计中的几个问题进行讨论。

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The article puts forward some thinking to control the bridge construction cost from the aspects of the bridge type scheme, superstructure, substructure and foundation on the detail data.

该文旨在通过具体数据，在桥型方案、上部构造、下部构造和基础方面提出一些控制桥梁造价的思路。

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In order to solve the problem of health monitoring at local area of large Bridges, a double-element substructure method to identify the physical parameters of bridge structures is proposed.

为了解决大型桥梁结构局部区域的健康监测问题，提出了一种用于桥梁结构物理参数识别的双单元子结构法。

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"A structurally deficient condition is a bridge that would have a rating of 4 either in the deck, the superstructure or the substructure, " he said.

CNN: States warned to inspect bridges