【摘要】 狗河大桥是沈山高速公路上比较大的一座桥 ,全桥在预制钢筋混凝土工形组合梁、现浇钢筋混凝土湿接缝及现浇钢筋混凝土盖梁处都设计运用了后张法预应力技术。结合施工实践 ,介绍了预应力混凝土结构设计、后张法施工工艺及注意事项。更多还原

【Abstract】 Gouhe bridge is a comparatively large bridge on Shenyang Shanhaiguan speedway. The prestressed post tensioning technology is applied in prefabrication of reinforced concrete I section composite girders, cast in situs of the wet joint and cap beams, this paper describes the post tensioning technology and some important points to be noted in construction practice.更多还原