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Connecting structure and connecting method for PHC precast pile cutting pile top and bearing platform
The invention discloses a connecting structure for a PHC precast pile cutting pile top and a bearing platform. According to the connecting structure, a pile foundation hollow core is formed in a PHC precast pile, the connecting structure is characterized in that the structure comprises a steel sleeve arranged outside the PHC precast pile in a sleeving mode, a gap is reserved between the inner wall of the steel sleeve and the outer wall of the PHC precast pile to form a cavity, the bottom of the steel sleeve is subjected to cavity bottom sealing through bottom sealing concrete, a supporting plate is arranged in the pile foundation hollow core, a reinforcement cage is placed in a cavity outside the pile foundation hollow core and the PHC precast pile, and concrete is poured to the pile top elevation. According to the connecting structure, bending moment is transmitted through the main reinforcement of the reinforcement cage, the bending resistance of a pile foundation connector is improved, the structure stress is reasonable and clear, the structure is simple, construction is convenient and rapid, the economical efficiency is good, and the PHC precast pile cutting technology is greatly improved and popularized.
本发明公开了一种用于PHC预制桩截桩桩顶与承台的连接构造，PHC预制桩内部形成桩基空芯，其特征在于所述构造包括套设在PHC预制桩外的钢套筒，所述钢套筒内壁与PHC预制桩外壁之间预留空隙，形成空腔，所述钢套筒底部用封底混凝土进行空腔封底，桩基空芯内设置托板，桩基空芯和PHC预制桩外部空腔内放置钢筋笼，浇注混凝土至桩顶标高。本发明的连接结构通过钢筋笼主筋传递弯矩，增加了桩基接头抗弯能力，结构受力合理明确，构造简单，施工方便、快速，经济性好，是对PHC预制桩截桩工艺极大的改善和推广。
Connecting structure and connecting method for PHC precast pile cutting pile top and bearing platform
The invention discloses a connecting structure for a PHC precast pile cutting pile top and a bearing platform. According to the connecting structure, a pile foundation hollow core is formed in a PHC precast pile, the connecting structure is characterized in that the structure comprises a steel sleeve arranged outside the PHC precast pile in a sleeving mode, a gap is reserved between the inner wall of the steel sleeve and the outer wall of the PHC precast pile to form a cavity, the bottom of the steel sleeve is subjected to cavity bottom sealing through bottom sealing concrete, a supporting plate is arranged in the pile foundation hollow core, a reinforcement cage is placed in a cavity outside the pile foundation hollow core and the PHC precast pile, and concrete is poured to the pile top elevation. According to the connecting structure, bending moment is transmitted through the main reinforcement of the reinforcement cage, the bending resistance of a pile foundation connector is improved, the structure stress is reasonable and clear, the structure is simple, construction is convenient and rapid, the economical efficiency is good, and the PHC precast pile cutting technology is greatly improved and popularized.
本发明公开了一种用于PHC预制桩截桩桩顶与承台的连接构造，PHC预制桩内部形成桩基空芯，其特征在于所述构造包括套设在PHC预制桩外的钢套筒，所述钢套筒内壁与PHC预制桩外壁之间预留空隙，形成空腔，所述钢套筒底部用封底混凝土进行空腔封底，桩基空芯内设置托板，桩基空芯和PHC预制桩外部空腔内放置钢筋笼，浇注混凝土至桩顶标高。本发明的连接结构通过钢筋笼主筋传递弯矩，增加了桩基接头抗弯能力，结构受力合理明确，构造简单，施工方便、快速，经济性好，是对PHC预制桩截桩工艺极大的改善和推广。
Connecting structure and connecting method for PHC precast pile cutting pile top and bearing platform
用于PHC预制桩截桩桩顶与承台的连接构造及连接方法
YIN CHENGZHANG (author) / DAI JIANGUO (author) / ZHOU XINGLIN (author) / LI DONGMING (author) / ZHU LIFENG (author)
2021-05-28
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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