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一、沙洋桥桥型设计沙洋汉江公路大桥,位于湖北省沙洋,汉口至宜昌公路由此跨汉江,桥梁全长1818.5米,主桥为八跨一联的预应力混凝土连续箱梁(见图1),跨度为63m+6×111m+63m。南岸引桥为22孔,北岸引桥为12孔、跨径30米、预应力混凝土简支T梁,分别按4跨或6跨一联,作成桥面连续。下部构造为钢筋混凝土空心墩,空心沉井基础。主墩上设有两个2,000t盆式橡胶支座。设计荷载汽车-20,挂车-100。桥面行车道宽9米,两侧人行道各宽1.5米,全宽12.5
First, the Shayang bridge design Shayang Hanjiang Highway Bridge, located in Shayang, Hubei Province, Hankou to Yichang Highway which cross the Han River, a total length of 1818.5 meters bridge, the main bridge for the eight span of a prestressed concrete continuous box girder ( See Figure 1) span 63m + 6x111m + 63m. The south bank approach bridge is 22 holes, the north shore approach bridge is 12 holes, and the span length is 30 meters. The prestressed concrete simply supported T-beams are made into continuous decks by 4 spans or 6 spans respectively. The lower part is constructed of reinforced concrete hollow pier and hollow caisson foundation. The main pier has two 2,000t pot rubber bearings. Design load car -20, trailer -100. Deck width of 9 meters, 1.5 meters wide on both sides of the walkway, full width 12.5