Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Strand pulling device and strand pulling method of cast-in-place large-span continuous beam steel strands
The invention discloses a strand pulling device and a strand pulling method of cast-in-place large-span continuous beam steel strands. The strand pulling device comprises a traction head, an anchoring ring and a protective cover. The traction head is connected to an extending steel strand in the center of a steel strand bundle with a neat end, the traction head penetrates through a through hole in the top end of the protective cover, and the bottom end of the traction head is connected with the through hole in a clamped mode; and the anchoring ring is arranged outside the end of the steel strand bundle in a sleeving mode and arranged at the lower end of the protective cover in a sleeving mode. The strand pulling device is simple in structure, the same steel strand is parallel to each other and is not twisted, a wire breakage rate is reduced, the construction quality and strand pulling efficiency of a prestressed structure are greatly improved, a construction operation process is simple and convenient, a situation that the steel strand is stressed unevenly and even broken in a subsequent tensioning process due to twisting of the steel strand can be effectively avoided, and in the strand pulling process, the safety risk and the construction cost are reduced, the construction period is shortened, and the strand pulling device is suitable for various types of post-tensioning method prestress strand pulling construction.
本发明公开了一种现浇大跨度连续梁钢绞线的穿束器及穿束方法，包括牵引头、锚固环和保护罩，牵引头连接于端部整齐的钢绞线束中心的一根伸出的钢绞线上，牵引头穿过保护罩顶端的通孔且底端与通孔卡接，锚固环套设于钢绞线束的端部外，锚固环套设于保护罩的下端。本发明穿束器的结构简单，使同一束钢绞线间互相平行不打绞，降低了断丝率，极大地提高了预应力结构施工质量和穿束效率，施工操作过程简便，能有效避免钢绞线因打绞导致后续张拉中钢绞线受力不均甚至断丝的情况，穿束过程中既降低了安全风险和施工成本，又缩短了施工工期，适用于各种类型后张法预应力穿束施工。
Strand pulling device and strand pulling method of cast-in-place large-span continuous beam steel strands
The invention discloses a strand pulling device and a strand pulling method of cast-in-place large-span continuous beam steel strands. The strand pulling device comprises a traction head, an anchoring ring and a protective cover. The traction head is connected to an extending steel strand in the center of a steel strand bundle with a neat end, the traction head penetrates through a through hole in the top end of the protective cover, and the bottom end of the traction head is connected with the through hole in a clamped mode; and the anchoring ring is arranged outside the end of the steel strand bundle in a sleeving mode and arranged at the lower end of the protective cover in a sleeving mode. The strand pulling device is simple in structure, the same steel strand is parallel to each other and is not twisted, a wire breakage rate is reduced, the construction quality and strand pulling efficiency of a prestressed structure are greatly improved, a construction operation process is simple and convenient, a situation that the steel strand is stressed unevenly and even broken in a subsequent tensioning process due to twisting of the steel strand can be effectively avoided, and in the strand pulling process, the safety risk and the construction cost are reduced, the construction period is shortened, and the strand pulling device is suitable for various types of post-tensioning method prestress strand pulling construction.
本发明公开了一种现浇大跨度连续梁钢绞线的穿束器及穿束方法，包括牵引头、锚固环和保护罩，牵引头连接于端部整齐的钢绞线束中心的一根伸出的钢绞线上，牵引头穿过保护罩顶端的通孔且底端与通孔卡接，锚固环套设于钢绞线束的端部外，锚固环套设于保护罩的下端。本发明穿束器的结构简单，使同一束钢绞线间互相平行不打绞，降低了断丝率，极大地提高了预应力结构施工质量和穿束效率，施工操作过程简便，能有效避免钢绞线因打绞导致后续张拉中钢绞线受力不均甚至断丝的情况，穿束过程中既降低了安全风险和施工成本，又缩短了施工工期，适用于各种类型后张法预应力穿束施工。
Strand pulling device and strand pulling method of cast-in-place large-span continuous beam steel strands
一种现浇大跨度连续梁钢绞线的穿束器及穿束方法
YANG XI (Autor:in) / SHENG YONGDONG (Autor:in) / XIAO CHENG (Autor:in) / HUO WENLONG (Autor:in)
16.04.2021
Patent
Elektronische Ressource
Chinesisch
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