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目前一种用材省、跨越能力大、行车舒适、维护简单的桥型——预应力钢筋混凝土连续梁桥正在我国蓬勃发展。现正在施工中沙洋汉江公路桥为跨径111米连续梁桥,已顺利的实现了边跨合拢。连续梁桥,在我国由几十米跨径,很快发展到百米以上大跨,这充分显示了这种桥型的竞争能力。同时,也标志着我国设计、施工技术水平的迅速提高。一、本桥主跨设计简况 1.载重标淮:汽车——20级计算; 挂车——100级验算; 人群荷载——350公
At present, a kind of bridge with preponderantly large capacity, convenient traffic and simple maintenance is being prospered in our country. The construction of the bridge in Shayang Han River is a continuous beam bridge spanning 111 meters, has been successfully achieved the side span closure. Continuous beam bridge, in our country by tens of meters span, quickly developed to more than 100 meters long span, which fully demonstrates the competitiveness of this bridge. At the same time, it also marks the rapid improvement of China’s design and construction technology. First, the bridge main span design briefing 1 load standard Huai: car - 20 level calculation; trailer - 100 level checking; crowd load - 350