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A platform for research: civil engineering, architecture and urbanism
Prestress pre-tensioning method anchor plate and using method
The invention discloses a prestress pre-tensioning method anchor plate. The anchor plate comprises a first steel plate, a triangular steel plate, an anchorage device, a clamping piece and a spiral bar. A hole is reserved in the center of the square steel plate, and the triangular steel plate is welded to the square steel plate. The anchorage device is welded on the square steel plate, the clamping piece is placed in the anchorage device, and the spiral bar is installed at the corresponding position of the prestressed bar before concrete is poured. On the basis of bonding force transmission between the pre-tensioning method component prestressed tendon and the concrete, the special end anchoring force transmission mode of the post-tensioning method is added, the bonding failure risk between the pre-tensioning method component prestressed tendon and the concrete in the later period is reduced, and the long-term service performance and durability of the pre-tensioning method component are improved. The anchor plates are arranged at the two ends of the prestress failure section, the prestress loss is reduced through clamping of the clamping pieces and the anchorage devices after the prestress steel bars retract, anchorage device deformation and prestress steel bar inward retraction are reduced, and the effect that the clamping pieces are compact and not loosened is achieved.
本发明个公开了一种预应力先张法锚板，该锚板包括第一钢板、三角形钢板、锚具、夹片、螺旋筋；所述正方形钢板中心留有孔洞，所述三角形钢板焊接在所述正方钢板上；所述锚具焊接在所述正方形钢板上，所述夹片放置于锚具内，所述螺旋筋在浇筑混凝土前安装在预应力筋相应位置上。本发明在先张法构件预应力筋与混凝土粘结传力的基础上增加了后张法特有的端头锚固的传力方式，降低了后期预应力筋与混凝土之间的粘结失效风险，提高了先张法预应力构件的长期服役性能和耐久性。在预应力失效段两端设置锚板，通过预应力钢筋回缩后夹片和锚具卡紧减少预应力损失，减少了锚具变形和预应力筋内缩，实现夹片紧实、不松动的效果。
Prestress pre-tensioning method anchor plate and using method
The invention discloses a prestress pre-tensioning method anchor plate. The anchor plate comprises a first steel plate, a triangular steel plate, an anchorage device, a clamping piece and a spiral bar. A hole is reserved in the center of the square steel plate, and the triangular steel plate is welded to the square steel plate. The anchorage device is welded on the square steel plate, the clamping piece is placed in the anchorage device, and the spiral bar is installed at the corresponding position of the prestressed bar before concrete is poured. On the basis of bonding force transmission between the pre-tensioning method component prestressed tendon and the concrete, the special end anchoring force transmission mode of the post-tensioning method is added, the bonding failure risk between the pre-tensioning method component prestressed tendon and the concrete in the later period is reduced, and the long-term service performance and durability of the pre-tensioning method component are improved. The anchor plates are arranged at the two ends of the prestress failure section, the prestress loss is reduced through clamping of the clamping pieces and the anchorage devices after the prestress steel bars retract, anchorage device deformation and prestress steel bar inward retraction are reduced, and the effect that the clamping pieces are compact and not loosened is achieved.
本发明个公开了一种预应力先张法锚板，该锚板包括第一钢板、三角形钢板、锚具、夹片、螺旋筋；所述正方形钢板中心留有孔洞，所述三角形钢板焊接在所述正方钢板上；所述锚具焊接在所述正方形钢板上，所述夹片放置于锚具内，所述螺旋筋在浇筑混凝土前安装在预应力筋相应位置上。本发明在先张法构件预应力筋与混凝土粘结传力的基础上增加了后张法特有的端头锚固的传力方式，降低了后期预应力筋与混凝土之间的粘结失效风险，提高了先张法预应力构件的长期服役性能和耐久性。在预应力失效段两端设置锚板，通过预应力钢筋回缩后夹片和锚具卡紧减少预应力损失，减少了锚具变形和预应力筋内缩，实现夹片紧实、不松动的效果。
Prestress pre-tensioning method anchor plate and using method
一种预应力先张法锚板及使用方法
FAXIANG XIE (author) / JIN ZIHENG (author) / KUANG GENI (author) / ZHANG YUN (author) / CHANG TIANLIANG (author)
2023-08-29
Patent
Electronic Resource
Chinese
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