Welding Performance Study of Building High-Strength Steel

This paper studies the influence of the concrete strength, the thickness of the protective layer, anchoring length, a transverse reinforcement, steel bar diameter and surface shape of these parameters on bond behavior. On the basis of the establishment of a high-strength helical ultimate bond strength pre-stressed reinforcement formula calculation results with the experimental results obtained by this formula agree well. In addition, the use of split test, analyze the impact on the bond splitting tensile strength of concrete anchorage performance, the establishment of the ultimate bond strength helical high strength pre-stressed reinforcement and concrete splitting tensile strength of the relationship, obtained from the formula the calculated results are in good agreement with the experimental results. Based on the test conducted on the reliability analysis, and proposed spiral rib steel and shaped steel bar anchorage length design recommendations, validated by experimental data suggested herein basic anchorage length can be safely used for the actual project.