Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Pre-tensioning anchor cable structure and device and construction method of pre-tensioning anchor cable structure and device
The invention discloses a pre-tensioning method anchor cable structure and device and a construction method of the pre-tensioning method anchor cable structure and device, the pre-tensioning method anchor cable structure comprises a prestressed tendon, an extrusion connecting sleeve and an anchor cup, the extrusion connecting sleeve is formed at the end of the prestressed tendon in an extrusion mode, and the two ends of the extrusion connecting sleeve are connected with an anchoring connector and an anchor backing plate which can axially move and be fixed relative to the extrusion connecting sleeve respectively; one end of the anchor cup is detachably connected with a tension rod, the other end of the anchor cup is provided with an anchoring hole, and the anchoring connector is arranged in the anchoring hole; a spiral bar is arranged on the other side, opposite to the anchor cup, of the anchor bearing plate, and a prestressed bar penetrates through the spiral bar. According to the method, the advantages of a pre-tensioning method and a post-tensioning method are combined, sufficient pressure stress is rapidly applied to the pre-stressed anchoring section of the component by combining two force transmission modes of holding and end face bearing, the quality problem of the component caused by pre-stress loss due to insufficient holding force during load bearing is avoided, and the construction quality is improved. And the prestressed tendons are not cut after tension releasing and anchoring, so that the construction efficiency of a system with a plurality of prestressed tendons is improved.
本发明公开一种先张法锚索结构、装置及其施工方法，包括预应力筋、挤压连接套以及锚杯，所述挤压连接套挤压成形于预应力筋的端头，所述挤压连接套两端分别连接有可相对其轴向移动并固定的锚固连接头、锚垫板；锚杯的一端可拆卸连接有张拉杆，锚杯的另一端设置有锚固孔，锚固孔内设置所述锚固连接头；在与锚杯相对的所述锚垫板另一侧设置有螺旋筋，预应力筋穿于所述螺旋筋内。本发明结合了先张法和后张法的优势，通过握裹和端面承载两种传力方式相结合，对构件预应力锚固段快速施加足够的压应力，避免因握裹力不足导致的预应力损失导致在承受荷载时构件产生的质量问题，放张锚固后也不对预应力筋进行切割，对于多根预应力筋的系统提高了施工效率。
Pre-tensioning anchor cable structure and device and construction method of pre-tensioning anchor cable structure and device
The invention discloses a pre-tensioning method anchor cable structure and device and a construction method of the pre-tensioning method anchor cable structure and device, the pre-tensioning method anchor cable structure comprises a prestressed tendon, an extrusion connecting sleeve and an anchor cup, the extrusion connecting sleeve is formed at the end of the prestressed tendon in an extrusion mode, and the two ends of the extrusion connecting sleeve are connected with an anchoring connector and an anchor backing plate which can axially move and be fixed relative to the extrusion connecting sleeve respectively; one end of the anchor cup is detachably connected with a tension rod, the other end of the anchor cup is provided with an anchoring hole, and the anchoring connector is arranged in the anchoring hole; a spiral bar is arranged on the other side, opposite to the anchor cup, of the anchor bearing plate, and a prestressed bar penetrates through the spiral bar. According to the method, the advantages of a pre-tensioning method and a post-tensioning method are combined, sufficient pressure stress is rapidly applied to the pre-stressed anchoring section of the component by combining two force transmission modes of holding and end face bearing, the quality problem of the component caused by pre-stress loss due to insufficient holding force during load bearing is avoided, and the construction quality is improved. And the prestressed tendons are not cut after tension releasing and anchoring, so that the construction efficiency of a system with a plurality of prestressed tendons is improved.
本发明公开一种先张法锚索结构、装置及其施工方法，包括预应力筋、挤压连接套以及锚杯，所述挤压连接套挤压成形于预应力筋的端头，所述挤压连接套两端分别连接有可相对其轴向移动并固定的锚固连接头、锚垫板；锚杯的一端可拆卸连接有张拉杆，锚杯的另一端设置有锚固孔，锚固孔内设置所述锚固连接头；在与锚杯相对的所述锚垫板另一侧设置有螺旋筋，预应力筋穿于所述螺旋筋内。本发明结合了先张法和后张法的优势，通过握裹和端面承载两种传力方式相结合，对构件预应力锚固段快速施加足够的压应力，避免因握裹力不足导致的预应力损失导致在承受荷载时构件产生的质量问题，放张锚固后也不对预应力筋进行切割，对于多根预应力筋的系统提高了施工效率。
Pre-tensioning anchor cable structure and device and construction method of pre-tensioning anchor cable structure and device
一种先张法锚索结构、装置及其施工方法
LIU JIN (Autor:in) / JIANG YEDONG (Autor:in) / ZENG HANGYU (Autor:in) / XIE ZHENGYUAN (Autor:in) / WEN CHAOCHEN (Autor:in) / MO LIMU (Autor:in) / JING FENGMING (Autor:in) / DENG QIANG (Autor:in) / YU SHAOLIN (Autor:in) / ZUO HAINING (Autor:in)
02.02.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
E01D
BRIDGES
,
Brücken
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