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A platform for research: civil engineering, architecture and urbanism
Anchorage device and method for ensuring long-term anchoring of fiber reinforced composite inhaul cable in long-span bridge
The invention discloses an anchorage device and method for ensuring long-term anchoring of a fiber reinforced composite inhaul cable in a long-span bridge. The anchorage device comprises a steel sleeve, and the fiber reinforced composite inhaul cable is arranged along the axis of the steel sleeve. The inner cavity of the steel sleeve is sequentially arranged into two sections along the axis between the free end and the loading end, and the two sections correspond to a first sleeve inner cavity and a second sleeve inner cavity; the cavity walls of the inner cavities of the first sleeve and the second sleeve are arranged to be conical shapes which are gradually shrunk from the free ends to the loading ends, and segmented steps exist between the inner cavities of the first sleeve and the second sleeve; the inner cavity of the first sleeve is provided with a clamping piece friction type anchoring assembly to anchor the fiber reinforced composite inhaul cable, and the inner cavity of the second sleeve is provided with a bonding friction type anchoring structure to anchor the fiber reinforced composite inhaul cable. The mode of combining two different anchoring modes is adopted, stress concentration at the end opening is greatly relieved, the overall radial stress is more gentle, and the anchoring device is more suitable for a large-span bridge.
本发明公开了一种确保大跨度桥梁中纤维增强复合材料拉索长期锚固的锚具及其方法。锚具包括钢套筒，纤维增强复合材料拉索沿着钢套筒的轴线布置；钢套筒的内腔在其自由端与加载端之间沿着轴线顺序设置成两段，对应为第一、第二套筒内腔；第一、第二套筒内腔的腔壁均设置成由自由端向加载端渐缩的圆锥状，且第一、第二套筒内腔之间存在分段台阶；第一套筒内腔通过装入夹片摩擦式锚固组件来锚固纤维增强复合材料拉索，而第二套筒内腔则通过粘结摩擦式锚固结构来锚固纤维增强复合材料拉索。本发明采用了两种不同锚固方式结合的方式，极大地缓解了端口处的应力集中，并且使整体的径向应力更加平缓，更加适用于大跨度桥梁。
Anchorage device and method for ensuring long-term anchoring of fiber reinforced composite inhaul cable in long-span bridge
The invention discloses an anchorage device and method for ensuring long-term anchoring of a fiber reinforced composite inhaul cable in a long-span bridge. The anchorage device comprises a steel sleeve, and the fiber reinforced composite inhaul cable is arranged along the axis of the steel sleeve. The inner cavity of the steel sleeve is sequentially arranged into two sections along the axis between the free end and the loading end, and the two sections correspond to a first sleeve inner cavity and a second sleeve inner cavity; the cavity walls of the inner cavities of the first sleeve and the second sleeve are arranged to be conical shapes which are gradually shrunk from the free ends to the loading ends, and segmented steps exist between the inner cavities of the first sleeve and the second sleeve; the inner cavity of the first sleeve is provided with a clamping piece friction type anchoring assembly to anchor the fiber reinforced composite inhaul cable, and the inner cavity of the second sleeve is provided with a bonding friction type anchoring structure to anchor the fiber reinforced composite inhaul cable. The mode of combining two different anchoring modes is adopted, stress concentration at the end opening is greatly relieved, the overall radial stress is more gentle, and the anchoring device is more suitable for a large-span bridge.
本发明公开了一种确保大跨度桥梁中纤维增强复合材料拉索长期锚固的锚具及其方法。锚具包括钢套筒，纤维增强复合材料拉索沿着钢套筒的轴线布置；钢套筒的内腔在其自由端与加载端之间沿着轴线顺序设置成两段，对应为第一、第二套筒内腔；第一、第二套筒内腔的腔壁均设置成由自由端向加载端渐缩的圆锥状，且第一、第二套筒内腔之间存在分段台阶；第一套筒内腔通过装入夹片摩擦式锚固组件来锚固纤维增强复合材料拉索，而第二套筒内腔则通过粘结摩擦式锚固结构来锚固纤维增强复合材料拉索。本发明采用了两种不同锚固方式结合的方式，极大地缓解了端口处的应力集中，并且使整体的径向应力更加平缓，更加适用于大跨度桥梁。
Anchorage device and method for ensuring long-term anchoring of fiber reinforced composite inhaul cable in long-span bridge
确保大跨度桥梁中纤维增强复合材料拉索长期锚固的锚具及其方法
JIANG WENTAO (author) / FENG BO (author) / LI HONGMING (author) / XIE DAN (author)
2023-05-12
Patent
Electronic Resource
Chinese
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