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A platform for research: civil engineering, architecture and urbanism
Repairable self-resetting concrete pier
A structural system of the repairable self-resetting concrete pier is sequentially provided with a pile foundation, a bearing platform, plastic hinge area concrete, a reinforced concrete pier column and a cover beam from bottom to top. A core steel column is arranged at the centroid position of the concrete section of the plastic hinge area, the top end of the core steel column extends into the reinforced concrete pier column, the bottom end of the core steel column extends into the bearing platform, a corrugated pipe is arranged in the core steel column, and the corrugated pipe penetrates through the core steel column to extend upwards to the top of the cover beam and extend downwards to the bottom of the bearing platform. The upper end of the unbonded steel beam is anchored to the top of the cover beam, and the lower end of the unbonded steel beam is anchored to the bottom of the bearing platform. The core steel column support is arranged in the plastic hinge area of the bridge pier, so that after concrete on the periphery of the plastic hinge area is damaged under the earthquake effect, a structural system composed of the core steel column and prestress can still transmit vertical loads, after the damaged concrete is removed, repair and rapid traffic opening can be achieved by pouring new concrete again, and dismantling and rebuilding of an upper structure are avoided.
本发明公开了一种可修复自复位混凝土桥墩，其结构体系从下至上，依次设置桩基础、承台、塑性铰区混凝土、钢筋混凝土墩柱、盖梁；所述塑性铰区混凝土截面形心处设置核心钢柱，所述核心钢柱所述核心钢柱顶端伸入钢筋混凝土墩柱，底端伸入承台中，所述核心钢柱内设有波纹管，波纹管穿过核心钢柱向上延伸至盖梁顶部，向下延伸至承台底部，无粘结钢束从中波纹管穿过，上端锚固于盖梁顶部，下端锚固于承台底部。本发明通过在桥墩塑性铰区设置核心钢柱支撑，以使在地震作用下塑性铰区外围混凝土破坏后，核心钢柱和预应力组成的结构体系仍能传递竖向荷载，清除破坏的混凝土后，重新浇筑新混凝土即可修复，快速通车，避免上部结构拆除重建。
Repairable self-resetting concrete pier
A structural system of the repairable self-resetting concrete pier is sequentially provided with a pile foundation, a bearing platform, plastic hinge area concrete, a reinforced concrete pier column and a cover beam from bottom to top. A core steel column is arranged at the centroid position of the concrete section of the plastic hinge area, the top end of the core steel column extends into the reinforced concrete pier column, the bottom end of the core steel column extends into the bearing platform, a corrugated pipe is arranged in the core steel column, and the corrugated pipe penetrates through the core steel column to extend upwards to the top of the cover beam and extend downwards to the bottom of the bearing platform. The upper end of the unbonded steel beam is anchored to the top of the cover beam, and the lower end of the unbonded steel beam is anchored to the bottom of the bearing platform. The core steel column support is arranged in the plastic hinge area of the bridge pier, so that after concrete on the periphery of the plastic hinge area is damaged under the earthquake effect, a structural system composed of the core steel column and prestress can still transmit vertical loads, after the damaged concrete is removed, repair and rapid traffic opening can be achieved by pouring new concrete again, and dismantling and rebuilding of an upper structure are avoided.
本发明公开了一种可修复自复位混凝土桥墩，其结构体系从下至上，依次设置桩基础、承台、塑性铰区混凝土、钢筋混凝土墩柱、盖梁；所述塑性铰区混凝土截面形心处设置核心钢柱，所述核心钢柱所述核心钢柱顶端伸入钢筋混凝土墩柱，底端伸入承台中，所述核心钢柱内设有波纹管，波纹管穿过核心钢柱向上延伸至盖梁顶部，向下延伸至承台底部，无粘结钢束从中波纹管穿过，上端锚固于盖梁顶部，下端锚固于承台底部。本发明通过在桥墩塑性铰区设置核心钢柱支撑，以使在地震作用下塑性铰区外围混凝土破坏后，核心钢柱和预应力组成的结构体系仍能传递竖向荷载，清除破坏的混凝土后，重新浇筑新混凝土即可修复，快速通车，避免上部结构拆除重建。
Repairable self-resetting concrete pier
一种可修复自复位混凝土桥墩
YANG DAHAI (author) / YANG KAI (author) / WU ZHIGANG (author) / WANG ZHITIAN (author) / WEI QINGQING (author) / YIN LIANG (author) / XIE YUMENG (author) / ZHOU XIAOWU (author) / ZHU JUN (author) / WANG QIAN (author)
2024-01-30
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken