Description
This guide provides recommendations on design provisions for the use of ASTM A1035/ASTM1035M Grade 100 (690) deformed steel bars for reinforced concrete members. The recommendations address only those requirements of ACI 318-08 that limit efficient use of such steel bars. Other code requirements are not affected.
This guide includes a discussion of the material characteristics of Grade 100 (690) ASTM 1035/A1035M deformed steel bars and recommends design criteria for beams, columns, slab systems, walls, and footings for Seismic Design Category (SDC) A, B, or C, and also for structural components not designated as part of the seismic-force-resisting system for SDC D, E, or F.
Keywords: bar; concrete; design; guide; high-strength steel; structural.
Table of Contents
Chapter 1—Introduction
1.1—Objective
1.2—Scope
1.3—Historical perspective and background
1.4—Availability
Chapter 2—Notation and definitions
2.1—Notation
2.2—Definitions
Chapter 3—Material properties
3.1—Introduction
3.2—Weights, dimensions, and deformations
3.3—Specified tensile properties
3.4—Actual tensile properties
3.5—Actual compressive properties
3.6—Chemical composition
Chapter 4—Beams
4.1—Introduction
4.2—Flexural strength
4.3—Tension- and compression-controlled limits
4.4—Strength reduction factor φ
4.5—Stress in steel due to flexure
4.6—Compression stress limit
4.7—Moment redistribution
4.8—Deflection
4.9—Crack control
4.10—Minimum reinforcement
4.11—Strength design for shear
Chapter 5—Columns
5.1—Introduction
5.2—Specified yield strength for longitudinal reinforcement
5.3—Specified yield strength for transverse reinforcement
5.4—Slenderness effect
Chapter 6—Slab systems
6.1—One-way slabs
6.2—Shear design of one-way slabs
6.3—Two-way slabs
Chapter 7—Walls
7.1—Introduction
7.2—Vertical reinforcement
7.3—Horizontal reinforcement
7.4—Shear reinforcement
7.5—Minimum reinforcement
Chapter 8—Footings and pile caps
8.1—Design
Chapter 9—Mat foundations
9.1—Design
Chapter 10—Other design considerations
10.1—Seismic design limitations
10.2—Development and lap splice length
10.3—Mechanically spliced bars and headed bars
10.4—Bending and welding of bars
10.5—Use of ASTM A1035/A1035M bars with ASTM A615/A615M bars
Chapter 11—Summary
Chapter 12—References
12.1— Referenced standards and reports
12.2—Cited references
Appendix A—Design examples
A.1—Introduction
A.2—Design examples
Appendix B—Flexural analysis using nonlinear stress-strain curve of ASTM A1035/A1035M Grade 100 (690) reinforcement
B.1—Introduction
B.2—Design assumptions
B.3—Spreadsheet implementation
B.4—Design examples
Appendix C—Flexural behavior of beams reinforced with ASTM 1035/A1035M bars