Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Pier reinforcing anti-seismic strengthening structure and construction method
The invention discloses a bridge pier reinforcing anti-seismic strengthening structure and a construction method. A reinforced bridge pier reinforcement cage in a reinforced bridge pier comprises internal longitudinal reinforcements and internal stirrups, and a plurality of reinforcing longitudinal reinforcements and a plurality of reinforcing outer ring reinforcements are arranged on the lower portion, close to a bearing platform, of the outer side of the reinforced bridge pier reinforcement cage; the lower end of each reinforcing longitudinal steel bar is anchored in the bearing platform, and the side face of each reinforcing longitudinal steel bar is tightly attached to a reinforced pier reinforcement cage. Each reinforcing outer ring reinforcing steel bar is connected with the nearest internal stirrup through a plurality of cooperative load-bearing reinforcing steel bars; reinforcing concrete is poured on the outer side of the inner core concrete. The construction method comprises the following steps: breaking concrete close to a bearing platform at the lower part of the outer side of a reinforced pier by adopting a water jet cutter, exposing a reinforcement cage of the reinforced pier, implanting reinforcing longitudinal reinforcements, arranging reinforcing outer ring reinforcements, arranging cooperative load-bearing reinforcements, and finally pouring reinforcing concrete. The anti-bending bearing capacity and ductility performance of the existing pier are improved, construction is more convenient and faster, reinforcement can be achieved only through a small number of steel bars and concrete, and cost is lower.
本发明公开了桥墩加固抗震强化结构及施工方法，被加固桥墩内的被加固桥墩钢筋笼包括内部纵向钢筋和内部箍筋，外侧靠近承台的下部设有若干加固纵向钢筋及多道加固外圈钢筋；每一加固纵向钢筋的下端均锚固在承台内，侧面均与被加固桥墩钢筋笼紧贴；每一加固外圈钢筋与距离最近的内部箍筋之间通过多个协同受力钢筋连接在一起；内芯混凝土的外侧浇筑加固混凝土。施工是，采用水刀破除被加固桥墩外侧下部靠近承台的混凝土，露出被加固桥墩钢筋笼然后植入加固纵向钢筋，设置加固外圈钢筋并设置协同受力钢筋，最后浇筑加固混凝土。本发明提高既有桥墩的抗弯承载能力和延性性能，施工更加便捷，只需要少量钢筋、混凝土即可实现加固，成本更低。
Pier reinforcing anti-seismic strengthening structure and construction method
The invention discloses a bridge pier reinforcing anti-seismic strengthening structure and a construction method. A reinforced bridge pier reinforcement cage in a reinforced bridge pier comprises internal longitudinal reinforcements and internal stirrups, and a plurality of reinforcing longitudinal reinforcements and a plurality of reinforcing outer ring reinforcements are arranged on the lower portion, close to a bearing platform, of the outer side of the reinforced bridge pier reinforcement cage; the lower end of each reinforcing longitudinal steel bar is anchored in the bearing platform, and the side face of each reinforcing longitudinal steel bar is tightly attached to a reinforced pier reinforcement cage. Each reinforcing outer ring reinforcing steel bar is connected with the nearest internal stirrup through a plurality of cooperative load-bearing reinforcing steel bars; reinforcing concrete is poured on the outer side of the inner core concrete. The construction method comprises the following steps: breaking concrete close to a bearing platform at the lower part of the outer side of a reinforced pier by adopting a water jet cutter, exposing a reinforcement cage of the reinforced pier, implanting reinforcing longitudinal reinforcements, arranging reinforcing outer ring reinforcements, arranging cooperative load-bearing reinforcements, and finally pouring reinforcing concrete. The anti-bending bearing capacity and ductility performance of the existing pier are improved, construction is more convenient and faster, reinforcement can be achieved only through a small number of steel bars and concrete, and cost is lower.
本发明公开了桥墩加固抗震强化结构及施工方法，被加固桥墩内的被加固桥墩钢筋笼包括内部纵向钢筋和内部箍筋，外侧靠近承台的下部设有若干加固纵向钢筋及多道加固外圈钢筋；每一加固纵向钢筋的下端均锚固在承台内，侧面均与被加固桥墩钢筋笼紧贴；每一加固外圈钢筋与距离最近的内部箍筋之间通过多个协同受力钢筋连接在一起；内芯混凝土的外侧浇筑加固混凝土。施工是，采用水刀破除被加固桥墩外侧下部靠近承台的混凝土，露出被加固桥墩钢筋笼然后植入加固纵向钢筋，设置加固外圈钢筋并设置协同受力钢筋，最后浇筑加固混凝土。本发明提高既有桥墩的抗弯承载能力和延性性能，施工更加便捷，只需要少量钢筋、混凝土即可实现加固，成本更低。
Pier reinforcing anti-seismic strengthening structure and construction method
桥墩加固抗震强化结构及施工方法
ZHANG TAO (Autor:in) / YAN XINGFEI (Autor:in) / ZHOU LIANG (Autor:in) / ZHOU XIAOYU (Autor:in) / GAN LU (Autor:in) / ZHANG BIN (Autor:in)
14.06.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
E01D
BRIDGES
,
Brücken
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