This paper introduces the design characters of superstructure and infrastructure of Sanshui Second bridge. The main bridge structure and mechanical calculation are introduced too.
文中介绍了三水二桥主桥上、下部结构设计特点，及对主桥结构进行了受力计算与分析。
To install the crane span before installation, camber, level of metal structure of main girder bending, trolley rail height difference, gauge deviation, diagonal bridge survey.
安装前要对起重机安装跨度，金属结构主梁的拱度、水平旁弯，小车轨道高低差、轨距偏差，桥架对角线等进行测量。
Its main bridge - a huge concrete structure - now lies concertinaed on the riverbed.
钢筋混凝土结构的主要桥梁，被扭扁坍塌在河床。
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