A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
UHPC precast slab with embedded internal thread lifting point
The invention discloses a UHPC precast slab containing pre-embedded internal thread lifting points, at least two rows of lifting points are symmetrically arranged in the UHPC precast slab along the long edge direction, each lifting point comprises two internal thread lifting connecting devices, the two internal thread lifting connecting devices are symmetrically arranged. The internal thread hoisting connecting device comprises an annular steel bar and an internal thread sleeve which are pre-buried in the UHPC prefabricated slab, one end of the annular steel bar is connected with one end of the internal thread sleeve, the axis of the internal thread sleeve is parallel to the vertical axis of the gravity center of the UHPC prefabricated slab, and a through hole is reserved between the other end face of the internal thread sleeve and the surface of the UHPC prefabricated slab. The annular reinforcing steel bars and the internal threaded sleeves are pre-buried in the UHPC prefabricated slab, no protrusion exists on the surface of the UHPC prefabricated slab, full-width vibration leveling during pouring of the UHPC prefabricated slab is not affected, no space is occupied during stacking storage, the lifting rings and the internal threaded sleeves are in threaded connection during lifting, operation is convenient and fast, and the lifting rings can be repeatedly used.
本发明公开了一种含预埋内螺纹吊点的UHPC预制板，在UHPC预制板内沿长边方向对称布置有不少于两排的吊点，每个吊点包括两个内螺纹吊装连接装置，两个内螺纹吊装连接装置对称布置，内螺纹吊装连接装置包括预埋在UHPC预制板内的环形钢筋和内螺纹套筒，环形钢筋的一端与内螺纹套筒一端连接，内螺纹套筒轴线与UHPC预制板重心竖轴线平行，且内螺纹套筒另一端面与UHPC预制板表面之间预留通孔。本发明通过将环形钢筋、内螺纹套筒预埋在UHPC预制板内，在UHPC预制板表面无凸出物，不影响UHPC预制板浇筑时的全幅振捣整平、堆叠存放时不占用空间，吊装时吊环与内螺纹套筒采用螺纹连接，操作便捷，吊环可重复使用。
UHPC precast slab with embedded internal thread lifting point
The invention discloses a UHPC precast slab containing pre-embedded internal thread lifting points, at least two rows of lifting points are symmetrically arranged in the UHPC precast slab along the long edge direction, each lifting point comprises two internal thread lifting connecting devices, the two internal thread lifting connecting devices are symmetrically arranged. The internal thread hoisting connecting device comprises an annular steel bar and an internal thread sleeve which are pre-buried in the UHPC prefabricated slab, one end of the annular steel bar is connected with one end of the internal thread sleeve, the axis of the internal thread sleeve is parallel to the vertical axis of the gravity center of the UHPC prefabricated slab, and a through hole is reserved between the other end face of the internal thread sleeve and the surface of the UHPC prefabricated slab. The annular reinforcing steel bars and the internal threaded sleeves are pre-buried in the UHPC prefabricated slab, no protrusion exists on the surface of the UHPC prefabricated slab, full-width vibration leveling during pouring of the UHPC prefabricated slab is not affected, no space is occupied during stacking storage, the lifting rings and the internal threaded sleeves are in threaded connection during lifting, operation is convenient and fast, and the lifting rings can be repeatedly used.
本发明公开了一种含预埋内螺纹吊点的UHPC预制板，在UHPC预制板内沿长边方向对称布置有不少于两排的吊点，每个吊点包括两个内螺纹吊装连接装置，两个内螺纹吊装连接装置对称布置，内螺纹吊装连接装置包括预埋在UHPC预制板内的环形钢筋和内螺纹套筒，环形钢筋的一端与内螺纹套筒一端连接，内螺纹套筒轴线与UHPC预制板重心竖轴线平行，且内螺纹套筒另一端面与UHPC预制板表面之间预留通孔。本发明通过将环形钢筋、内螺纹套筒预埋在UHPC预制板内，在UHPC预制板表面无凸出物，不影响UHPC预制板浇筑时的全幅振捣整平、堆叠存放时不占用空间，吊装时吊环与内螺纹套筒采用螺纹连接，操作便捷，吊环可重复使用。
UHPC precast slab with embedded internal thread lifting point
一种含预埋内螺纹吊点的UHPC预制板
ZHANG XIN (author) / LI YU (author) / LIU YONG (author) / JIANG WUSI (author) / WANG WUBING (author) / MA SHANGJUN (author) / MA ZU (author) / LI CHAO (author)
2021-04-09
Patent
Electronic Resource
Chinese
| European Patent Office | 2023
Characterization of Precast UHPC Pile Drivability
| ASCE | 2009