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A platform for research: civil engineering, architecture and urbanism
Deck type beam-arch combined bridge anti-seismic system suitable for high-intensity earthquake area
The invention discloses a deck-type beam-arch combined bridge anti-seismic system suitable for a high-intensity earthquake area, which comprises an upper beam body, a support and a bridge abutment, the support is positioned between the upper beam body and the bridge abutment, the upper beam body is supported on the bridge abutment through the support, the deck-type beam-arch combined bridge further comprises a viscous damper, one end of the viscous damper is connected to the bridge abutment, and the other end of the viscous damper is connected to the upper beam body. The viscous damper is arranged between the bridge abutment and the upper beam body, impact energy of an earthquake on the bridge is absorbed and consumed to the maximum extent through the viscous damper, impact and damage of the earthquake on the deck type beam-arch combined bridge are greatly relieved, and then the adverse effect of the earthquake action on the bridge is relieved. The stress condition of the bridge pier can be improved through the viscous damper, so that the rigidity of the middle pier is reduced to improve the anti-seismic performance, meanwhile, the bridge pier foundation meets the bearing capacity requirement, the reduction of the rigidity of the middle pier can greatly reduce the number of bridge pier foundation projects, and the economical efficiency of the bridge is improved.
本发明公开了一种适用于高烈度地震区的上承式梁拱组合桥梁抗震系统，其包括上部梁体、支座和桥台，支座位于上部梁体和桥台之间，上部梁体通过支座支撑在桥台上，上承式梁拱组合桥梁还包括粘滞阻尼器，粘滞阻尼器的一端连接于桥台，粘滞阻尼器的另一端连接于上部梁体。通过在桥台和上部梁体之间设置粘滞阻尼器，通过粘滞阻尼器最大限度地吸收和消耗地震对桥梁的冲击能量，大大缓解了地震对上承式梁拱组合桥梁的冲击和破坏，进而减轻了地震作用对桥梁的不利影响。而且可通过粘滞阻尼器改善桥墩受力情况，使得在减少中墩刚度以提高抗震性能的同时使得桥墩基础满足承载力需求，而中墩刚度的降低又能大幅减少桥墩基础工程数量，提高桥梁经济性。
Deck type beam-arch combined bridge anti-seismic system suitable for high-intensity earthquake area
The invention discloses a deck-type beam-arch combined bridge anti-seismic system suitable for a high-intensity earthquake area, which comprises an upper beam body, a support and a bridge abutment, the support is positioned between the upper beam body and the bridge abutment, the upper beam body is supported on the bridge abutment through the support, the deck-type beam-arch combined bridge further comprises a viscous damper, one end of the viscous damper is connected to the bridge abutment, and the other end of the viscous damper is connected to the upper beam body. The viscous damper is arranged between the bridge abutment and the upper beam body, impact energy of an earthquake on the bridge is absorbed and consumed to the maximum extent through the viscous damper, impact and damage of the earthquake on the deck type beam-arch combined bridge are greatly relieved, and then the adverse effect of the earthquake action on the bridge is relieved. The stress condition of the bridge pier can be improved through the viscous damper, so that the rigidity of the middle pier is reduced to improve the anti-seismic performance, meanwhile, the bridge pier foundation meets the bearing capacity requirement, the reduction of the rigidity of the middle pier can greatly reduce the number of bridge pier foundation projects, and the economical efficiency of the bridge is improved.
本发明公开了一种适用于高烈度地震区的上承式梁拱组合桥梁抗震系统，其包括上部梁体、支座和桥台，支座位于上部梁体和桥台之间，上部梁体通过支座支撑在桥台上，上承式梁拱组合桥梁还包括粘滞阻尼器，粘滞阻尼器的一端连接于桥台，粘滞阻尼器的另一端连接于上部梁体。通过在桥台和上部梁体之间设置粘滞阻尼器，通过粘滞阻尼器最大限度地吸收和消耗地震对桥梁的冲击能量，大大缓解了地震对上承式梁拱组合桥梁的冲击和破坏，进而减轻了地震作用对桥梁的不利影响。而且可通过粘滞阻尼器改善桥墩受力情况，使得在减少中墩刚度以提高抗震性能的同时使得桥墩基础满足承载力需求，而中墩刚度的降低又能大幅减少桥墩基础工程数量，提高桥梁经济性。
Deck type beam-arch combined bridge anti-seismic system suitable for high-intensity earthquake area
适用于高烈度地震区的上承式梁拱组合桥梁抗震系统
WANG SHUNLI (author) / WANG JUNYAN (author) / LI SHENGWEI (author) / XIA XIANG (author) / BIAN JING (author) / MENG QINGWEI (author) / CHEN YAN (author) / LIU XIAOXIAO (author) / GONG CHEN (author)
2021-08-24
Patent
Electronic Resource
Chinese
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