Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
The invention provides a highway bridge stability pre-stressed anchorage device, and belongs to the field of concrete construction. The highway bridge stability pre-stressed anchorage device comprises an anchor bearing plate, an anchor plate and a protection tightening mechanism. The protection tightening mechanism comprises a fastening ring, four supports, two first guide rods, two first sliding blocks, two second guide rods, second sliding blocks, screws and nuts. The two ends of each first guide rod are fixedly connected to the upper ends of the supports, the two first sliding blocks penetrate through the two first guide rods in a sliding mode, the second sliding blocks penetrate through the two second guide rods in a sliding mode, the screws penetrate through the second sliding blocks in a threaded mode and are arranged between the two second guide rods, a magnetic layer is arranged at the lower end of each screw, the nuts are magnetically attracted to the lower ends of screws, a clamping piece can be tightly clamped for the second time, and the situation that the tensioning degree of a steel strand is reduced due to the fact that the head of the steel strand is loosened is avoided.
本发明提供了一种公路桥梁稳定性预应力锚具，属于混凝土施工领域。该公路桥梁稳定性预应力锚具包括锚垫板、锚板和防护加紧机构，所述防护加紧机构包括紧固圈、四个支架、两根第一导杆、两个第一滑块、两根第二导杆、第二滑块、螺杆和螺帽，两根所述第一导杆两端分别固定连接于所述支架上端，两个所述第一滑块分别滑动贯穿于两根所述第一导杆，所述第二滑块分别滑动贯穿于两根所述第二导杆，所述螺杆螺纹贯穿于所述第二滑块，所述螺杆设置在两根所述第二导杆之间，所述螺杆下端设置有磁层，所述螺帽磁吸于所述螺杆下端，本发明可以二次加紧夹片，并避免因钢绞线头散开降低钢绞线的张紧度。
The invention provides a highway bridge stability pre-stressed anchorage device, and belongs to the field of concrete construction. The highway bridge stability pre-stressed anchorage device comprises an anchor bearing plate, an anchor plate and a protection tightening mechanism. The protection tightening mechanism comprises a fastening ring, four supports, two first guide rods, two first sliding blocks, two second guide rods, second sliding blocks, screws and nuts. The two ends of each first guide rod are fixedly connected to the upper ends of the supports, the two first sliding blocks penetrate through the two first guide rods in a sliding mode, the second sliding blocks penetrate through the two second guide rods in a sliding mode, the screws penetrate through the second sliding blocks in a threaded mode and are arranged between the two second guide rods, a magnetic layer is arranged at the lower end of each screw, the nuts are magnetically attracted to the lower ends of screws, a clamping piece can be tightly clamped for the second time, and the situation that the tensioning degree of a steel strand is reduced due to the fact that the head of the steel strand is loosened is avoided.
本发明提供了一种公路桥梁稳定性预应力锚具，属于混凝土施工领域。该公路桥梁稳定性预应力锚具包括锚垫板、锚板和防护加紧机构，所述防护加紧机构包括紧固圈、四个支架、两根第一导杆、两个第一滑块、两根第二导杆、第二滑块、螺杆和螺帽，两根所述第一导杆两端分别固定连接于所述支架上端，两个所述第一滑块分别滑动贯穿于两根所述第一导杆，所述第二滑块分别滑动贯穿于两根所述第二导杆，所述螺杆螺纹贯穿于所述第二滑块，所述螺杆设置在两根所述第二导杆之间，所述螺杆下端设置有磁层，所述螺帽磁吸于所述螺杆下端，本发明可以二次加紧夹片，并避免因钢绞线头散开降低钢绞线的张紧度。
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