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一、概 述 黄柏河大桥位于宜昌市区黄柏河与长江汇合处,是葛洲坝水利枢纽工程的附属工程,同时,又是该市平湖风景区的一座游览桥。 该桥全长为476.95米,7孔60米空复式钢筋混凝土等截面悬链线箱形版拱,矢跨比1/6,拱轴系数m=2.814,桥面行车道净宽9米,两侧各设2米人行道(包括栏杆在内)。载重标准为设计主车汽36吨,验算重车汽54吨。通航标准为三级。地震基本烈度为六度。下部结构,桥台为重力式,基础为明挖,置于砂岩上,六个桥墩为重力式墩,基础为钢筋混凝土沉井,嵌入基岩。
I. Overview Huangbaihe Bridge is located in downtown Yichang Huangbaihe and the confluence of the Yangtze River, Gezhouba dam project is ancillary works, but also the city’s Pinghu Scenic Area, a tour bridge. The total length of the bridge is 476.95 meters, 7 holes and 60 meters of empty reinforced concrete section cross-catenary box-shaped arch, sag ratio of 1/6, the coefficient of arch axis m = 2.814, 9 meters wide bridge deck lane, two Set side 2 meters sidewalks (including railings included). Load standard for the design of the main steam 36 tons, checking heavy truck 54 tons. Navigational standards for three. The basic earthquake intensity is six degrees. In the lower structure, the abutment is of gravitational type, the foundation is open cut and placed on sandstone. The six piers are gravity piers, and the foundation is reinforced concrete caisson, which is embedded in bedrock.