T/SCDA 055-2020 The technical standard for the application of hot-treated reinforcing high-strength steel bars with ribs at 630MPa level

Scope

Main technical content: 1. This standard applies to the design, construction, and quality acceptance of reinforced concrete structures in buildings and general structures that use Tian Shun 630MPa heat-treated ribbed high-strength steel bars. High-strength steel bars are suitable for use as longitudinal reinforcing bars in reinforced concrete structures and non-prestressed reinforcing bars in prestressed concrete structures; they can also be used as transverse reinforcing bars in shear, torsion, and impact-resistant components; and high-strength steel bars can also be used in foundation structures. High-strength steel bars are not suitable for lightweight aggregate concrete structures, special concrete structures, or concrete components requiring fatigue calculations; frame and diagonal bracing components (including staircases), shear walls, and core tubes with seismic grades of I, II, or III in upper building structures and basements are not suitable for using high-strength steel bars. 2. In this standard, Tian Shun 630MPa heat-treated ribbed high-strength steel bars are referred to as high-strength steel bars, and the technical requirements for the steel bars must comply with Appendix A, "Technical Requirements and Test Methods for Heat-Treated Ribbed High-Strength Steel Bars." Other high-strength steel bars that meet the requirements of this standard and its test methods are also applicable to this standard.

Development Information

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