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汕头石大桥为国内第一座混合型箱梁大跨度斜拉桥。主跨 5 18m及 2个侧边跨各 10 0 m均采用钢箱梁 ,两端接 2× 47m锚跨采用预应力混凝土箱形梁。斜拉索采用全封闭镀锌钢绞线新构造 ,并外接粘性剪切阻尼器抑振以及基础采用组合式套箱高桩承台深水基础。介绍大桥主孔斜拉桥中采用的混合梁结构、有 4层防护的平行钢绞线斜拉索新结构、外接粘性剪切阻尼器 (HCA)以及深水主塔基础的新方案及工艺、水下控爆等开拓性成就头
Shantou stone bridge for the first hybrid large-span cable-stayed bridge. Steel girders are used for the main span of 5 18m and two side spans of 10m each, and 2 × 47m anchor spans on both ends are prestressed concrete box girders. Cable stayed cable with fully enclosed galvanized steel wire new structure, and external viscous shear damper vibration suppression and the basis of the use of modular high-pile cap pile deep-water foundation. This paper introduces the hybrid beam structure used in the main cable stayed bridge of the bridge, a new structure of 4-layer protective parallel cable stayed cable, a new scheme and process of adding viscous shear damper (HCA) and deep-water main pylon foundation, water Under the control of explosive pioneering achievements