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A platform for research: civil engineering, architecture and urbanism
Construction method for improving connection quality of bridge pile foundation and bearing platform and bridge
The invention discloses a construction method for improving the connection quality of a bridge pile foundation and a bearing platform and a bridge, the pile foundation is a reinforced concrete cast-in-place pile, the bearing platform is a reinforced concrete cast-in-place bearing platform, and when the pile foundation is cast in place, over-pouring and auxiliary vibrating measures are taken; two seams are annularly cut in the lower portion of the pile top, the two seams are chiseled away to form an isolation groove, then the part, needing to be broken, above the isolation groove is chiseled away, and the top face of the treated pile foundation is higher than the bottom structure line of the bearing platform; the exposed steel bars are straightened and shaped, so that the exposed steel bars define a horn shape, stirrups are arranged on the outer sides of the exposed steel bars, and the ends of the exposed steel bars are horizontally bent to form bent sections; the foundation pit is reinforced, bearing platform steel bars are installed, the bent section is fixedly connected with part of the bearing platform steel bars, a bearing platform formwork is installed, and the bearing platform is poured. The connecting quality of the bridge pile foundation and the bearing platform structure is improved through combination of multiple measures, the reliability of the bridge lower structure is improved, and then the risks of huge safety accidents such as sedimentation and inclination of the bridge are reduced.
本发明公开了一种提高桥梁桩基与承台连接质量的施工方法及一种桥梁，桩基为钢筋混凝土灌注桩，承台为钢筋混凝土浇筑承台，在灌注桩基时进行超灌与辅助振捣措施；在桩顶下方环切出两条缝，将两条缝之间凿除形成隔离槽，再凿除隔离槽上方的需要破除的部分，处理后的桩基顶面高于承台底部结构线；对外露钢筋进行调直整形，使得外露钢筋围成喇叭状，在外露钢筋外侧设置箍筋，将外露钢筋端部水平弯折形成弯折段；对基坑进行加固处理，安装承台钢筋，将弯折段与部分承台钢筋固定连接，安装承台模板，浇筑承台。本发明通过多种措施组合来提高桥梁桩基与承台结构的连接质量，提高桥梁下部结构的可靠性，进而降低桥梁发生沉降、倾斜等巨大安全事故的风险。
Construction method for improving connection quality of bridge pile foundation and bearing platform and bridge
The invention discloses a construction method for improving the connection quality of a bridge pile foundation and a bearing platform and a bridge, the pile foundation is a reinforced concrete cast-in-place pile, the bearing platform is a reinforced concrete cast-in-place bearing platform, and when the pile foundation is cast in place, over-pouring and auxiliary vibrating measures are taken; two seams are annularly cut in the lower portion of the pile top, the two seams are chiseled away to form an isolation groove, then the part, needing to be broken, above the isolation groove is chiseled away, and the top face of the treated pile foundation is higher than the bottom structure line of the bearing platform; the exposed steel bars are straightened and shaped, so that the exposed steel bars define a horn shape, stirrups are arranged on the outer sides of the exposed steel bars, and the ends of the exposed steel bars are horizontally bent to form bent sections; the foundation pit is reinforced, bearing platform steel bars are installed, the bent section is fixedly connected with part of the bearing platform steel bars, a bearing platform formwork is installed, and the bearing platform is poured. The connecting quality of the bridge pile foundation and the bearing platform structure is improved through combination of multiple measures, the reliability of the bridge lower structure is improved, and then the risks of huge safety accidents such as sedimentation and inclination of the bridge are reduced.
本发明公开了一种提高桥梁桩基与承台连接质量的施工方法及一种桥梁，桩基为钢筋混凝土灌注桩，承台为钢筋混凝土浇筑承台，在灌注桩基时进行超灌与辅助振捣措施；在桩顶下方环切出两条缝，将两条缝之间凿除形成隔离槽，再凿除隔离槽上方的需要破除的部分，处理后的桩基顶面高于承台底部结构线；对外露钢筋进行调直整形，使得外露钢筋围成喇叭状，在外露钢筋外侧设置箍筋，将外露钢筋端部水平弯折形成弯折段；对基坑进行加固处理，安装承台钢筋，将弯折段与部分承台钢筋固定连接，安装承台模板，浇筑承台。本发明通过多种措施组合来提高桥梁桩基与承台结构的连接质量，提高桥梁下部结构的可靠性，进而降低桥梁发生沉降、倾斜等巨大安全事故的风险。
Construction method for improving connection quality of bridge pile foundation and bearing platform and bridge
一种提高桥梁桩基与承台连接质量的施工方法及一种桥梁
GAO JUNBO (author) / LIU CHANGLIN (author) / ZENG YONGLIN (author) / WANG YI (author) / WANG YUNPENG (author) / ZHANG BINGJIAN (author) / YAN ZHEN (author)
2024-01-26
Patent
Electronic Resource
Chinese
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