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A platform for research: civil engineering, architecture and urbanism
Novel three-tower self-anchored suspension bridge and construction method thereof
A three-tower self-anchored suspension bridge comprises two side piers, two auxiliary piers arranged on the inner sides of the two side piers, three main towers arranged between the two auxiliary piers, a main beam, a plurality of main cables fixed to the main towers and a plurality of slings used for lifting the main beam, and is characterized in that the main beam is arranged on the side piers and the auxiliary piers and penetrates through the main towers; main cables are erected between the adjacent main towers and between the auxiliary piers and the main towers, the main cables are space cable faces, and the main cables and the main beams are connected through central buckles at the midspan positions to restrain relative displacement of the main cables and the main beams. A three-towerself-anchored suspension bridge structure system is formed through the central buckles, the horizontal constraint of the midspan main cable on the top of the middle tower is increased, and thereforethe longitudinal bending moment of the bottom of the middle tower under unbalanced live loads is reduced, the structure size of the middle tower is reduced, the vertical rigidity of the structure is improved, and the economic span of the three-tower self-anchored suspension bridge is increased; the method can be suitable for a three-tower self-anchored suspension bridge with the span of 400 m or above, and is suitable for a large-span highway-rail combined bridge.
一种三塔自锚式悬索桥，其包括两个边墩、设置在两个边墩内侧的两个辅助墩、设置在两个辅助墩之间的三个主塔、主梁、若干固定于主塔的主缆以及若干用于提拉主梁的吊索，其特征在于，主梁设置在边墩、辅助墩上并且穿设于主塔，在相邻的主塔之间、辅助墩与主塔之间架设有主缆，主缆为空间索面，主缆与主梁在跨中位置通过中央扣连接，约束两者的相对位移。本发明通过中央扣形成三塔自锚式悬索桥结构体系，增大了跨中主缆对中塔塔顶的水平约束，从而降低了不平衡活载下中塔塔底的纵桥向弯矩，降低了中塔的结构尺寸，提高了结构竖向刚度，提高了三塔自锚式悬索桥的经济跨径，可适用于跨径400m以上的三塔自锚式悬索桥，适用于大跨径公轨合建桥梁。
Novel three-tower self-anchored suspension bridge and construction method thereof
A three-tower self-anchored suspension bridge comprises two side piers, two auxiliary piers arranged on the inner sides of the two side piers, three main towers arranged between the two auxiliary piers, a main beam, a plurality of main cables fixed to the main towers and a plurality of slings used for lifting the main beam, and is characterized in that the main beam is arranged on the side piers and the auxiliary piers and penetrates through the main towers; main cables are erected between the adjacent main towers and between the auxiliary piers and the main towers, the main cables are space cable faces, and the main cables and the main beams are connected through central buckles at the midspan positions to restrain relative displacement of the main cables and the main beams. A three-towerself-anchored suspension bridge structure system is formed through the central buckles, the horizontal constraint of the midspan main cable on the top of the middle tower is increased, and thereforethe longitudinal bending moment of the bottom of the middle tower under unbalanced live loads is reduced, the structure size of the middle tower is reduced, the vertical rigidity of the structure is improved, and the economic span of the three-tower self-anchored suspension bridge is increased; the method can be suitable for a three-tower self-anchored suspension bridge with the span of 400 m or above, and is suitable for a large-span highway-rail combined bridge.
一种三塔自锚式悬索桥，其包括两个边墩、设置在两个边墩内侧的两个辅助墩、设置在两个辅助墩之间的三个主塔、主梁、若干固定于主塔的主缆以及若干用于提拉主梁的吊索，其特征在于，主梁设置在边墩、辅助墩上并且穿设于主塔，在相邻的主塔之间、辅助墩与主塔之间架设有主缆，主缆为空间索面，主缆与主梁在跨中位置通过中央扣连接，约束两者的相对位移。本发明通过中央扣形成三塔自锚式悬索桥结构体系，增大了跨中主缆对中塔塔顶的水平约束，从而降低了不平衡活载下中塔塔底的纵桥向弯矩，降低了中塔的结构尺寸，提高了结构竖向刚度，提高了三塔自锚式悬索桥的经济跨径，可适用于跨径400m以上的三塔自锚式悬索桥，适用于大跨径公轨合建桥梁。
Novel three-tower self-anchored suspension bridge and construction method thereof
一种新型三塔自锚式悬索桥及其施工方法
CHEN LIANG (author) / CHANG FUPING (author) / LU DONGYANG (author) / SHAO CHANGYU (author)
2021-01-19
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
Self-anchored suspension bridge and construction method thereof
| European Patent Office | 2024
| European Patent Office | 2024