A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Exchange beam bridge platform of pedestrian cableway bridge
The invention relates to an exchange beam bridge platform of a pedestrian cableway bridge, and belongs to the field of bridge engineering. In order to solve the problems that connection of a bridge head and a bridge floor is not smooth and cable adjustment is difficult after main cable anchoring, a main cable anchoring section is linearly arranged to be an upward-convex composite curve composed of a straight line section and an arc section; the anchoring structure centers of the main cable and the anchor cable on the side surface of the exchange beam bridge platform are positioned below the intersection point of the main cable in the clean span section and the surface of the structure close to the river center side of the exchange beam bridge platform; the distance between the top edge of the arc section embedded steel pipe located on the main cable anchoring section and the top face of the exchange beam bridge platform is smaller than the thickness of the bridge deck slab of the clear span section. And a main cable cross-core tightener is arranged between the steel cable anchorage device at the tail end of the main cable anchoring section and the anchor backing plate. According to the exchange beam bridge platform, smooth connection transition between a clear span bridge floor and a bridge platform bridge floor is achieved; the cross-core tightener with a simple structure is arranged at the main cable anchoring point of the exchange beam bridge platform, so that the sag is still adjustable after the main cable is anchored, the cable adjusting construction is convenient, the construction period is short, and the cost is low.
本发明涉及一种人行索道桥的交换梁桥台，属于桥梁工程领域。为了解决桥头桥面衔接不平顺和主索锚固后调索困难问题，本发明将主索锚固段线形设置为由直线段和圆弧段构成的上凸复合曲线；主索和锚索在交换梁桥台侧面的锚固构造中心都位于净跨径区段主索与交换梁桥台靠河心侧结构表面交点的下方；位于主索锚固段的圆弧段预埋钢管的顶缘到交换梁桥台顶面之间的距离小于净跨径区段的桥面板厚度。主索锚固段末端的钢索锚具与锚垫板之间设置主索穿心式松紧器。本发明的交换梁桥台实现了净跨径桥面和桥台桥面之间的平顺衔接过渡；在交换梁桥台的主索锚固点处设置了构造简单的穿心式松紧器，实现了主索锚固后垂度仍然可调，且调索施工方便，工期短费用低。
Exchange beam bridge platform of pedestrian cableway bridge
The invention relates to an exchange beam bridge platform of a pedestrian cableway bridge, and belongs to the field of bridge engineering. In order to solve the problems that connection of a bridge head and a bridge floor is not smooth and cable adjustment is difficult after main cable anchoring, a main cable anchoring section is linearly arranged to be an upward-convex composite curve composed of a straight line section and an arc section; the anchoring structure centers of the main cable and the anchor cable on the side surface of the exchange beam bridge platform are positioned below the intersection point of the main cable in the clean span section and the surface of the structure close to the river center side of the exchange beam bridge platform; the distance between the top edge of the arc section embedded steel pipe located on the main cable anchoring section and the top face of the exchange beam bridge platform is smaller than the thickness of the bridge deck slab of the clear span section. And a main cable cross-core tightener is arranged between the steel cable anchorage device at the tail end of the main cable anchoring section and the anchor backing plate. According to the exchange beam bridge platform, smooth connection transition between a clear span bridge floor and a bridge platform bridge floor is achieved; the cross-core tightener with a simple structure is arranged at the main cable anchoring point of the exchange beam bridge platform, so that the sag is still adjustable after the main cable is anchored, the cable adjusting construction is convenient, the construction period is short, and the cost is low.
本发明涉及一种人行索道桥的交换梁桥台，属于桥梁工程领域。为了解决桥头桥面衔接不平顺和主索锚固后调索困难问题，本发明将主索锚固段线形设置为由直线段和圆弧段构成的上凸复合曲线；主索和锚索在交换梁桥台侧面的锚固构造中心都位于净跨径区段主索与交换梁桥台靠河心侧结构表面交点的下方；位于主索锚固段的圆弧段预埋钢管的顶缘到交换梁桥台顶面之间的距离小于净跨径区段的桥面板厚度。主索锚固段末端的钢索锚具与锚垫板之间设置主索穿心式松紧器。本发明的交换梁桥台实现了净跨径桥面和桥台桥面之间的平顺衔接过渡；在交换梁桥台的主索锚固点处设置了构造简单的穿心式松紧器，实现了主索锚固后垂度仍然可调，且调索施工方便，工期短费用低。
Exchange beam bridge platform of pedestrian cableway bridge
人行索道桥的交换梁桥台
JING TIANHU (author) / YAN YU (author) / DENG KANGCHENG (author) / YU WENCHENG (author) / LIU JUNLI (author)
2024-11-12
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
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