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A platform for research: civil engineering, architecture and urbanism
Method for erecting temporary piers of large-span steel-concrete composite beam cable-stayed bridge
The invention discloses a method for erecting temporary piers of a large-span steel-concrete composite beam cable-stayed bridge. The method comprises the steps: step 1, determining erecting positionsof temporary piers; step 2, setting boundary constraint conditions; step 3, determining a temporary pier installation opportunity; step 4, determining a temporary pier dismantling opportunity; and step 5, erecting temporary piers. According to the method, the optimal supporting position of the temporary pier on the side span is determined through wind resistance detection and on-site terrain, geological conditions, construction difficulty and construction safety; boundary constraints are set, the temporary pier mounting opportunity and the temporary pier dismounting opportunity are determined;sufficient preparation is made for subsequent temporary pier supporting. An upper supporting lug plate is mounted at the bottom of a steel main beam; the upper supporting lug plate matches two lowersupporting lug plates installed on a transverse limiting frame, kidney-shaped holes matching the supporting connecting pieces are formed in the lower supporting lug plates and the upper supporting lugplate, the cable-stayed bridge is allowed to have certain displacement changes in the longitudinal direction, vertical displacement changes of the steel main beam are limited, and stress is clear.
本发明公开了一种大跨径钢混组合梁斜拉桥临时墩支设方法，包括步骤：一、确定临时墩支设位置；二、设置边界约束条件；三、确定临时墩安装时机；四、确定临时墩拆除时机；五、临时墩支设。本发明通过抗风性能检测和现场地形、地质条件、施工难度和施工安全确定临时墩在边跨的最佳支设位置，设置边界约束条件，确定临时墩安装时机和临时墩拆除时机，为后续临时墩支设做充分准备，通过在钢主梁底部安装上支撑耳板，上支撑耳板与两个安装在横向限位架上的下支撑耳板配合，下支撑耳板和上支撑耳板上均开设有与支撑连接件配合的腰形孔，允许斜拉桥在纵向上有一定的位移变化，限制钢主梁竖向位移变化，受力明确。
Method for erecting temporary piers of large-span steel-concrete composite beam cable-stayed bridge
The invention discloses a method for erecting temporary piers of a large-span steel-concrete composite beam cable-stayed bridge. The method comprises the steps: step 1, determining erecting positionsof temporary piers; step 2, setting boundary constraint conditions; step 3, determining a temporary pier installation opportunity; step 4, determining a temporary pier dismantling opportunity; and step 5, erecting temporary piers. According to the method, the optimal supporting position of the temporary pier on the side span is determined through wind resistance detection and on-site terrain, geological conditions, construction difficulty and construction safety; boundary constraints are set, the temporary pier mounting opportunity and the temporary pier dismounting opportunity are determined;sufficient preparation is made for subsequent temporary pier supporting. An upper supporting lug plate is mounted at the bottom of a steel main beam; the upper supporting lug plate matches two lowersupporting lug plates installed on a transverse limiting frame, kidney-shaped holes matching the supporting connecting pieces are formed in the lower supporting lug plates and the upper supporting lugplate, the cable-stayed bridge is allowed to have certain displacement changes in the longitudinal direction, vertical displacement changes of the steel main beam are limited, and stress is clear.
本发明公开了一种大跨径钢混组合梁斜拉桥临时墩支设方法，包括步骤：一、确定临时墩支设位置；二、设置边界约束条件；三、确定临时墩安装时机；四、确定临时墩拆除时机；五、临时墩支设。本发明通过抗风性能检测和现场地形、地质条件、施工难度和施工安全确定临时墩在边跨的最佳支设位置，设置边界约束条件，确定临时墩安装时机和临时墩拆除时机，为后续临时墩支设做充分准备，通过在钢主梁底部安装上支撑耳板，上支撑耳板与两个安装在横向限位架上的下支撑耳板配合，下支撑耳板和上支撑耳板上均开设有与支撑连接件配合的腰形孔，允许斜拉桥在纵向上有一定的位移变化，限制钢主梁竖向位移变化，受力明确。
Method for erecting temporary piers of large-span steel-concrete composite beam cable-stayed bridge
一种大跨径钢混组合梁斜拉桥临时墩支设方法
WEI JIALE (author) / SHU TAO (author) / YANG JICHENG (author) / ZHU DONGFANG (author) / LEI BOTAO (author) / ZHANG JIZHONG (author) / HUANG YUAN (author)
2020-07-10
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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