Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Non-destructive repairing and reinforcing method and reinforcing device for angle steel pole tower single shear connection node
The invention provides a lossless repairing and reinforcing method and reinforcing device for a single shear connection node of an angle steel pole tower. The lossless repairing and reinforcing method mainly comprises the steps that a damaged area and a non-damaged area are determined in an auxiliary mode through observation of cracks or cracks or notches of angle steel and flaw detection; welding and repairing cracks or notches, and polishing the repaired appearance to be the same as the original tower material; for fine cracks, high-strength steel base plates are adhered to the inner and outer sides of the angle steel through steel adhesive layers; for a crack or a notch, the force transmission mechanism of a damage area is optimized based on stress analysis, and by arranging friction type high-strength bolts and high-strength steel base plates, the balance between shearing force and friction force distributed along the base plates and the surfaces of the angle steel is achieved. The method effectively reduces the stress level of the steel in the damaged area, improves the stress state of the defect area, inhibits the development of potential damage in the steel in long-term operation, and guarantees the node connection reliability in long-term operation.
本发明提供了一种角钢杆塔单剪连接节点的无损修补加固方法及加固装置，主要包括：通过观察角钢裂纹、裂缝或缺口，并通过探伤检测辅助确定受损区、非受损区；裂缝或缺口的焊接修补，修补后外形打磨与原塔材相同；对于细小裂纹,角钢内外两侧通过粘钢胶层粘接高强钢垫板；对于裂缝或缺口通过基于应力分析对损伤区的传力计理进行优化，通过布置摩擦型高强螺栓和高强钢垫板，达到剪力和沿垫板、角钢表面分布的摩擦力相平衡。本发明有效降低了损伤区钢材的应力水平，改善了缺陷区应力状态，抑制了长期运行钢材内部潜在损伤的发展，保证了长期运行的节点连接可靠性。
Non-destructive repairing and reinforcing method and reinforcing device for angle steel pole tower single shear connection node
The invention provides a lossless repairing and reinforcing method and reinforcing device for a single shear connection node of an angle steel pole tower. The lossless repairing and reinforcing method mainly comprises the steps that a damaged area and a non-damaged area are determined in an auxiliary mode through observation of cracks or cracks or notches of angle steel and flaw detection; welding and repairing cracks or notches, and polishing the repaired appearance to be the same as the original tower material; for fine cracks, high-strength steel base plates are adhered to the inner and outer sides of the angle steel through steel adhesive layers; for a crack or a notch, the force transmission mechanism of a damage area is optimized based on stress analysis, and by arranging friction type high-strength bolts and high-strength steel base plates, the balance between shearing force and friction force distributed along the base plates and the surfaces of the angle steel is achieved. The method effectively reduces the stress level of the steel in the damaged area, improves the stress state of the defect area, inhibits the development of potential damage in the steel in long-term operation, and guarantees the node connection reliability in long-term operation.
本发明提供了一种角钢杆塔单剪连接节点的无损修补加固方法及加固装置，主要包括：通过观察角钢裂纹、裂缝或缺口，并通过探伤检测辅助确定受损区、非受损区；裂缝或缺口的焊接修补，修补后外形打磨与原塔材相同；对于细小裂纹,角钢内外两侧通过粘钢胶层粘接高强钢垫板；对于裂缝或缺口通过基于应力分析对损伤区的传力计理进行优化，通过布置摩擦型高强螺栓和高强钢垫板，达到剪力和沿垫板、角钢表面分布的摩擦力相平衡。本发明有效降低了损伤区钢材的应力水平，改善了缺陷区应力状态，抑制了长期运行钢材内部潜在损伤的发展，保证了长期运行的节点连接可靠性。
Non-destructive repairing and reinforcing method and reinforcing device for angle steel pole tower single shear connection node
一种角钢杆塔单剪连接节点的无损修补加固方法及加固装置
LI XINGZHOU (Autor:in) / ZHANG JIAN (Autor:in) / HUANG JINLONG (Autor:in) / YANG LIDONG (Autor:in) / ZHANG MENGYA (Autor:in) / WANG YANFEI (Autor:in)
21.10.2022
Patent
Elektronische Ressource
Chinesisch
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