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实用新型
CN203755129U 一种混合梁斜拉-悬索协作桥 失效 - 放弃

一种混合梁斜拉-悬索协作桥
摘要：
本实用新型公开了一种混合梁斜拉-悬索协作桥，包括桥塔、辅助墩、钢主梁、混凝土主梁、结合部主梁、过渡区主梁、斜拉索、过渡区斜拉索、主缆、吊索、过渡区吊索和长度调整装置。其中，钢主梁位于桥体中央，钢主梁两端均依次通过过渡区主梁和结合部主梁固接于混凝土主梁；该桥两端的边跨部分l2全部长度或部分长度是采用混凝土主梁，其支撑在辅助墩上；该桥的中跨部分l1的跨中区域l3=1/3l1～2/3l1，由主缆悬吊。本实用新型提供了一种结构刚度大、阻尼大、经济性好，钢-混凝土结合部和斜拉-悬索过渡区结构刚度过渡匀顺、抗疲劳性能好的新型斜拉-悬索协作桥。
摘要（英）：

The utility model discloses a hybrid-beam cable-stayed and suspension coordinated bridge comprising bridge towers, auxiliary piers, a steel girder, concrete girders, joint girders, transition area girders, stay cables, transition area stay cables, a main cable, suspension cables, transition area suspension cables, and length regulators. The steel girder is arranged at the center of a body. Each end of the steel girder is fixedly connected to one concrete girder through the corresponding transition area girder and the corresponding joint girder; all or part of side span portions 12 at two ends of the bridge are made with the concrete girders supported on the auxiliary piers. A mid-span area l3 of a mid-span portion 11 of the bridge is 1/3l1-2/3l1 and is suspended by the main cable. The novel hybrid-beam cable-stayed and suspension coordinated bridge is high in structural length, large in damping, well economical and good in fatigue resistance, and the steel-concrete joint portion and the cable-stayed and suspension transition area have smooth transition of structural rigidity.

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