A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Gravity type bridge combined anti-seismic stop block and design method
The invention relates to a gravity type bridge combined anti-seismic stop block and a design method, the gravity type bridge combined anti-seismic stop block comprises a cover beam and a box beam erected at the upper end of the cover beam, steel sliding blocks with arc-shaped bottoms are fixedly arranged at the bottoms of the two sides of the box beam, slope section stop blocks are arranged on the two sides of the cover beam, and sliding connection slope sections of the slope section stop blocks and the steel sliding blocks are in an obliquely upward cambered surface shape from inside to outside; two upper support cushion stones are fixedly arranged on the lower end face of the box girder in a spaced mode, two lower support cushion stones are fixedly arranged on the upper end face of the cover beam, two lower auxiliary check blocks are fixedly arranged on the upper end face of the cover beam between the two lower support cushion stones in a spaced mode, and the upper ends of the two lower auxiliary check blocks are fixedly connected with upper auxiliary check blocks through high-strength anti-shearing bolts. The traditional rigid collision between the baffle block and the main beam is converted into flexible sliding of materials between the sliding block and the slope section, and the kinetic energy of an earthquake is fully converted into the action of lifting the gravity of the main beam and the friction among the materials, so that the effects of energy dissipation and shock absorption are realized, and multiple earthquake-proof defense lines can be realized; and the anti-seismic capacity and the recovery capacity of the bridge are remarkably improved on the premise of protecting structural members of the bridge.
本发明涉及一种重力型桥梁组合抗震挡块及设计方法，包括盖梁以及架设在盖梁上端的箱梁，箱梁两侧底部均固设有底部呈圆弧状的钢滑块，盖梁两侧设置有坡段挡块，坡段挡块与钢滑块的滑接坡段均自内朝外呈斜向上的弧面状；箱梁下端面间隔固设有两上支座垫石，盖梁上端面固设有两下支座垫石，两下支座垫石之间的盖梁上端面上间隔固设有两下辅助挡块，两下辅助挡块上端均经高强抗剪螺栓固连有上辅助挡块，把传统的挡块与主梁之间的刚性碰撞转化成为滑块与坡段之间材料的柔性滑动，并且把地震的动能充分转化成为抬升主梁重力做功和各部材料之间的摩擦实现消能减震的效果，可以实现多道抗震防线，在保护桥梁结构构件的前提下显著提高桥梁的抗震能力和恢复能力。
Gravity type bridge combined anti-seismic stop block and design method
The invention relates to a gravity type bridge combined anti-seismic stop block and a design method, the gravity type bridge combined anti-seismic stop block comprises a cover beam and a box beam erected at the upper end of the cover beam, steel sliding blocks with arc-shaped bottoms are fixedly arranged at the bottoms of the two sides of the box beam, slope section stop blocks are arranged on the two sides of the cover beam, and sliding connection slope sections of the slope section stop blocks and the steel sliding blocks are in an obliquely upward cambered surface shape from inside to outside; two upper support cushion stones are fixedly arranged on the lower end face of the box girder in a spaced mode, two lower support cushion stones are fixedly arranged on the upper end face of the cover beam, two lower auxiliary check blocks are fixedly arranged on the upper end face of the cover beam between the two lower support cushion stones in a spaced mode, and the upper ends of the two lower auxiliary check blocks are fixedly connected with upper auxiliary check blocks through high-strength anti-shearing bolts. The traditional rigid collision between the baffle block and the main beam is converted into flexible sliding of materials between the sliding block and the slope section, and the kinetic energy of an earthquake is fully converted into the action of lifting the gravity of the main beam and the friction among the materials, so that the effects of energy dissipation and shock absorption are realized, and multiple earthquake-proof defense lines can be realized; and the anti-seismic capacity and the recovery capacity of the bridge are remarkably improved on the premise of protecting structural members of the bridge.
本发明涉及一种重力型桥梁组合抗震挡块及设计方法，包括盖梁以及架设在盖梁上端的箱梁，箱梁两侧底部均固设有底部呈圆弧状的钢滑块，盖梁两侧设置有坡段挡块，坡段挡块与钢滑块的滑接坡段均自内朝外呈斜向上的弧面状；箱梁下端面间隔固设有两上支座垫石，盖梁上端面固设有两下支座垫石，两下支座垫石之间的盖梁上端面上间隔固设有两下辅助挡块，两下辅助挡块上端均经高强抗剪螺栓固连有上辅助挡块，把传统的挡块与主梁之间的刚性碰撞转化成为滑块与坡段之间材料的柔性滑动，并且把地震的动能充分转化成为抬升主梁重力做功和各部材料之间的摩擦实现消能减震的效果，可以实现多道抗震防线，在保护桥梁结构构件的前提下显著提高桥梁的抗震能力和恢复能力。
Gravity type bridge combined anti-seismic stop block and design method
一种重力型桥梁组合抗震挡块及设计方法
ZHANG CHAO (author) / SONG KUNRU (author) / JIA JUNFENG (author) / BI KAIMING (author) / ZHU ZHAN (author) / LI ZHAOXIANG (author) / CAI HUAZHONG (author) / QIU MINCHAO (author)
2024-08-06
Patent
Electronic Resource
Chinese
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