A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Cable beam anchoring structure for reinforcing cable-stayed system and construction method of cable beam anchoring structure
The invention discloses a cable beam anchoring structure for reinforcing a cable-stayed system and a construction method of the cable beam anchoring structure. The cable beam anchoring structure comprises a bridge tower, an inhaul cable, combined profile steel and a bracket welded to the combined profile steel. Combined section steel is anchored to a box girder top plate through a connecting device, a bridge tower is welded to the combined section steel, and the bridge tower and the combined section steel are connected through an inhaul cable. Good tensile property of steel is fully utilized, horizontal component force generated by the inhaul cable is borne by shearing resistance of the first bracket, adverse effects of large axial tension on a main beam in a mid-span cable-free area of a traditional cable-stayed bridge can be directly avoided, and vertical force can provide upward lifting force for the main beam, so that the cable-stayed bridge is convenient to use. The bending resistance and the shearing resistance of the main beam are enhanced, downwarping deformation of the main beam is reduced, and development of cracks of the main beam can be restrained. The structure is simple, construction is convenient, safety and economy are achieved, and good application prospects are achieved.
本发明公开了一种用于斜拉体系加固的索梁锚固结构及其施工方法，该结构包括桥塔、拉索和组合型钢，以及焊接在组合型钢上的牛腿。该结构通过连接装置使组合型钢锚固箱梁顶板上，桥塔焊接在组合型钢上，通过拉索连接桥塔和组合型钢。本发明充分利用了钢材良好的抗拉性能，让拉索产生的水平分力由第一牛腿的抗剪力承担，可以直接避免传统斜拉桥中，中跨跨中无索区域主梁受到很大轴向拉力的不利影响，而竖向力又能对主梁提供向上的提升力，增强了主梁抗弯、抗剪能力，减小了主梁下挠变形，并能抑制主梁裂缝的发展。本发明结构简洁、施工便捷、安全经济，具有很好的应用前景。
Cable beam anchoring structure for reinforcing cable-stayed system and construction method of cable beam anchoring structure
The invention discloses a cable beam anchoring structure for reinforcing a cable-stayed system and a construction method of the cable beam anchoring structure. The cable beam anchoring structure comprises a bridge tower, an inhaul cable, combined profile steel and a bracket welded to the combined profile steel. Combined section steel is anchored to a box girder top plate through a connecting device, a bridge tower is welded to the combined section steel, and the bridge tower and the combined section steel are connected through an inhaul cable. Good tensile property of steel is fully utilized, horizontal component force generated by the inhaul cable is borne by shearing resistance of the first bracket, adverse effects of large axial tension on a main beam in a mid-span cable-free area of a traditional cable-stayed bridge can be directly avoided, and vertical force can provide upward lifting force for the main beam, so that the cable-stayed bridge is convenient to use. The bending resistance and the shearing resistance of the main beam are enhanced, downwarping deformation of the main beam is reduced, and development of cracks of the main beam can be restrained. The structure is simple, construction is convenient, safety and economy are achieved, and good application prospects are achieved.
本发明公开了一种用于斜拉体系加固的索梁锚固结构及其施工方法，该结构包括桥塔、拉索和组合型钢，以及焊接在组合型钢上的牛腿。该结构通过连接装置使组合型钢锚固箱梁顶板上，桥塔焊接在组合型钢上，通过拉索连接桥塔和组合型钢。本发明充分利用了钢材良好的抗拉性能，让拉索产生的水平分力由第一牛腿的抗剪力承担，可以直接避免传统斜拉桥中，中跨跨中无索区域主梁受到很大轴向拉力的不利影响，而竖向力又能对主梁提供向上的提升力，增强了主梁抗弯、抗剪能力，减小了主梁下挠变形，并能抑制主梁裂缝的发展。本发明结构简洁、施工便捷、安全经济，具有很好的应用前景。
Cable beam anchoring structure for reinforcing cable-stayed system and construction method of cable beam anchoring structure
一种用于斜拉体系加固的索梁锚固结构及其施工方法
WU ZHAOXIA (author) / CHEN FUKUN (author) / ZHANG WENXUE (author) / QIN QINGYUE (author) / WU CHENYANG (author) / DAI TIANYU (author)
2023-05-26
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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