A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Self-anchored deck type arch bridge structure for balancing horizontal thrust
The invention relates to a self-anchored deck type arch bridge structure for balancing horizontal thrust. The self-anchored deck type arch bridge comprises arch ribs, a bridge floor beam, stand columns, bridge piers, an under-arch inhaul cable anchoring device, pressing rods, pull rods, pulleys and stiffening steel plates. The arch feet of the arch ribs are connected with the piers through sliding hinged supports. The pulleys, the pressing rods and the pull rods form fixed pulley structures respectively and are installed on the lower sides of the arch ribs. And the inhaul cable is anchored to the inner side of the arch foot through the inhaul cable anchoring device, and is dragged to the arch foot at the other end of the arch rib from the arch foot through each pulley and is anchored. According to the arrangement, horizontal component force borne by the arch rib enables the sliding hinge support at the arch springing to generate horizontal displacement, the inhaul cable device under the arch restrains displacement of the arch springing, the horizontal thrust of the arch rib can be balanced to a certain extent, the horizontal thrust is transmitted back to the arch rib through the inhaul cable and the fixed pulley structure, the structural stability of the arch springing is improved, and the arch springing is prevented from being damaged. The purpose of optimizing stress is achieved, and the arch bridge can also be applied to soft foundation areas.
本发明设计涉及平衡水平推力的自锚上承式拱桥结构。所述自锚上承式拱桥包括拱肋、桥面梁、立柱、桥墩以及拱下的拉索锚固装置、压杆、拉杆、滑轮、加劲钢板。所述拱肋的拱脚与桥墩的连接方式采用滑动铰支座。所述滑轮分别同压杆和拉杆构成定滑轮结构，并安装在拱肋下侧。所述拉索通过拉索锚固装置锚固至拱脚内侧，并自拱脚处经各个滑轮牵引至拱肋另一端拱脚处并锚固。上述设置中，拱肋所受的水平分力使拱脚处的滑动铰支座产生水平位移，而拱下的拉索装置将约束拱脚位移，一定程度上可平衡拱肋的水平推力，并将水平推力通过拉索和定滑轮结构传递回拱肋，提高拱座的结构稳定性，做到优化受力的目的，使拱桥在软基地区也可应用。
Self-anchored deck type arch bridge structure for balancing horizontal thrust
The invention relates to a self-anchored deck type arch bridge structure for balancing horizontal thrust. The self-anchored deck type arch bridge comprises arch ribs, a bridge floor beam, stand columns, bridge piers, an under-arch inhaul cable anchoring device, pressing rods, pull rods, pulleys and stiffening steel plates. The arch feet of the arch ribs are connected with the piers through sliding hinged supports. The pulleys, the pressing rods and the pull rods form fixed pulley structures respectively and are installed on the lower sides of the arch ribs. And the inhaul cable is anchored to the inner side of the arch foot through the inhaul cable anchoring device, and is dragged to the arch foot at the other end of the arch rib from the arch foot through each pulley and is anchored. According to the arrangement, horizontal component force borne by the arch rib enables the sliding hinge support at the arch springing to generate horizontal displacement, the inhaul cable device under the arch restrains displacement of the arch springing, the horizontal thrust of the arch rib can be balanced to a certain extent, the horizontal thrust is transmitted back to the arch rib through the inhaul cable and the fixed pulley structure, the structural stability of the arch springing is improved, and the arch springing is prevented from being damaged. The purpose of optimizing stress is achieved, and the arch bridge can also be applied to soft foundation areas.
本发明设计涉及平衡水平推力的自锚上承式拱桥结构。所述自锚上承式拱桥包括拱肋、桥面梁、立柱、桥墩以及拱下的拉索锚固装置、压杆、拉杆、滑轮、加劲钢板。所述拱肋的拱脚与桥墩的连接方式采用滑动铰支座。所述滑轮分别同压杆和拉杆构成定滑轮结构，并安装在拱肋下侧。所述拉索通过拉索锚固装置锚固至拱脚内侧，并自拱脚处经各个滑轮牵引至拱肋另一端拱脚处并锚固。上述设置中，拱肋所受的水平分力使拱脚处的滑动铰支座产生水平位移，而拱下的拉索装置将约束拱脚位移，一定程度上可平衡拱肋的水平推力，并将水平推力通过拉索和定滑轮结构传递回拱肋，提高拱座的结构稳定性，做到优化受力的目的，使拱桥在软基地区也可应用。
Self-anchored deck type arch bridge structure for balancing horizontal thrust
平衡水平推力的自锚上承式拱桥结构
KANG HOUJUN (author) / ZHENG LUO (author) / YAN BANFU (author) / GUO TIEDING (author)
2024-01-26
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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