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Prefabricated pier column and bearing platform connecting method adopting grouting-free star-shaped steel tenon for shock insulation
The invention provides a prefabricated pier column and bearing platform connecting method adopting a grouting-free star-shaped steel tenon to insulate shock, which comprises the following steps: arranging a cylindrical cavity and a circular truncated cone-shaped cavity combination on the upper surface of the center of a bearing platform, arranging a circular truncated cone-shaped bulge at the lower end of a prefabricated pier column, matching with the circular truncated cone-shaped cavity on the bearing platform, pre-embedding a star-shaped steel tenon in the center of the lower end of the prefabricated pier column, annular steel bars are arranged on the periphery of the star-shaped steel tenon in the horizontal direction, the outer diameter of a combination of the annular steel bars and the star-shaped steel tenon is smaller than that of the cylindrical cavity in the bearing platform, L-shaped steel bars are vertically welded to the upper end of the star-shaped steel tenon, and L-shaped mud jacking pipes are embedded in concrete around the column foot. An annular rubber plate and a fan-shaped rubber plate are arranged on the contact face of the lower end of the prefabricated pier column and the bearing platform, the cylindrical cavity of the bearing platform is filled with high-strength grouting materials, the star-shaped steel tenon of the prefabricated pier column is slowly inserted into the cylindrical cavity of the bearing platform, and the redundant high-strength grouting materials automatically flow out through the L-shaped grouting pipe under the pressure. The connecting method is simple in structure and excellent in static force and anti-seismic performance.
本发明提出一种采用免压浆星形钢榫隔震的预制墩柱与承台连接方法，包括在承台中心上表面设置圆柱状空腔和圆台状空腔组合体，预制墩柱下端有圆台状凸起，与承台上的圆台状空腔匹配，预制墩柱下端中心处预埋有星形钢榫，部分露出预制墩柱底端，星形钢榫水平向四周设有环形钢筋，环形钢筋与星形钢榫组合体的外直径小于承台上的圆柱状空腔，星形钢榫上端竖向焊接有L形钢筋，柱脚四周混凝土内埋设L形压浆管，预制墩柱下端与承台接触面设有环形橡胶板和扇形橡胶板，在承台圆柱状空腔内灌满高强灌浆料，将预制墩柱的星形钢榫缓缓插入承台圆柱状空腔内，多余高强灌浆料在压力下通过L形压浆管自行流出。上述连接方法结构简单、静力及抗震性能优异。
Prefabricated pier column and bearing platform connecting method adopting grouting-free star-shaped steel tenon for shock insulation
The invention provides a prefabricated pier column and bearing platform connecting method adopting a grouting-free star-shaped steel tenon to insulate shock, which comprises the following steps: arranging a cylindrical cavity and a circular truncated cone-shaped cavity combination on the upper surface of the center of a bearing platform, arranging a circular truncated cone-shaped bulge at the lower end of a prefabricated pier column, matching with the circular truncated cone-shaped cavity on the bearing platform, pre-embedding a star-shaped steel tenon in the center of the lower end of the prefabricated pier column, annular steel bars are arranged on the periphery of the star-shaped steel tenon in the horizontal direction, the outer diameter of a combination of the annular steel bars and the star-shaped steel tenon is smaller than that of the cylindrical cavity in the bearing platform, L-shaped steel bars are vertically welded to the upper end of the star-shaped steel tenon, and L-shaped mud jacking pipes are embedded in concrete around the column foot. An annular rubber plate and a fan-shaped rubber plate are arranged on the contact face of the lower end of the prefabricated pier column and the bearing platform, the cylindrical cavity of the bearing platform is filled with high-strength grouting materials, the star-shaped steel tenon of the prefabricated pier column is slowly inserted into the cylindrical cavity of the bearing platform, and the redundant high-strength grouting materials automatically flow out through the L-shaped grouting pipe under the pressure. The connecting method is simple in structure and excellent in static force and anti-seismic performance.
本发明提出一种采用免压浆星形钢榫隔震的预制墩柱与承台连接方法，包括在承台中心上表面设置圆柱状空腔和圆台状空腔组合体，预制墩柱下端有圆台状凸起，与承台上的圆台状空腔匹配，预制墩柱下端中心处预埋有星形钢榫，部分露出预制墩柱底端，星形钢榫水平向四周设有环形钢筋，环形钢筋与星形钢榫组合体的外直径小于承台上的圆柱状空腔，星形钢榫上端竖向焊接有L形钢筋，柱脚四周混凝土内埋设L形压浆管，预制墩柱下端与承台接触面设有环形橡胶板和扇形橡胶板，在承台圆柱状空腔内灌满高强灌浆料，将预制墩柱的星形钢榫缓缓插入承台圆柱状空腔内，多余高强灌浆料在压力下通过L形压浆管自行流出。上述连接方法结构简单、静力及抗震性能优异。
Prefabricated pier column and bearing platform connecting method adopting grouting-free star-shaped steel tenon for shock insulation
一种采用免压浆星形钢榫隔震的预制墩柱与承台连接方法
ZHUO WEIDING (author) / ZHUO SAIYANG (author) / LIU ZHAO (author) / YIN YUYAO (author) / HU SHIXIANG (author) / CONG LING (author) / LIN MIN (author) / JIN WEIJIAN (author) / CHEN LI (author) / LI CHENGTAO (author)
2023-06-13
Patent
Electronic Resource
Chinese
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