Already a subscriber? 
MADCAD.com Free Trial
Sign up for a 3 day free trial to explore the MADCAD.com interface, PLUS access the
2009 International Building Code to see how it all works.
If you like to setup a quick demo, let us know at support@madcad.com
or +1 800.798.9296 and we will be happy to schedule a webinar for you.
Security check
Please login to your personal account to use this feature.
Please login to your authorized staff account to use this feature.
Are you sure you want to empty the cart?
ACI/PTI CODE-320-25: Post-Tensioned Structural Concrete - Code Requirements and Commentary, 2025
- Chapter 1—General [Go to Page]
- 1.1—Scope of ACI/PTI CODE-320
- 1.2—General
- 1.3—Purpose
- 1.4—Applicability
- 1.5—Interpretation
- 1.6—Building official
- 1.7—Licensed design professional
- 1.8—Construction documents and design records
- 1.9—Testing and inspection
- 1.10—Approval of specials systems of design, construction, or alternative construction materials
- Chapter 2—Notation and Terminology [Go to Page]
- 2.1—Scope
- 2.2—Notation
- 2.3—Terminology
- Chapter 3—Referenced Standards [Go to Page]
- 3.1—Scope
- 3.2—Referenced standards
- Chapter 4—Structural System Requirements [Go to Page]
- 4.1—Scope
- 4.2—Materials
- 4.3—Design loads
- 4.4—Structural system and load paths
- 4.5—Structural analysis
- 4.6—Strength
- 4.7—Serviceability
- 4.8—Durability
- 4.9—Sustainability
- 4.10—Structural integrity
- 4.11—Fire resistance
- 4.12—Requirements for specific types of construction
- 4.13—Construction and inspection
- 4.14—Strength evaluation of existing structures
- Chapter 5—Loads [Go to Page]
- 5.1—Scope
- 5.2—General - See ACI CODE-318
- 5.3—Load factors and combinations
- Chapter 6—Structural Analysis [Go to Page]
- 6.1—Scope
- 6.2—General
- 6.3—Modeling assumptions
- 6.4—Arrangement of live load
- 6.5—Simplified method of analysis for nonprestressed continuous beams and one-way slabs - See ACI CODE-318
- 6.6—Linear elastic first-order analysis
- 6.7—Linear elastic second-order analysis - See ACI CODE-318
- 6.8—Inelastic analysis - See ACI CODE-318
- 6.9—Acceptability of finite element analysis - See ACI CODE-318
- Chapter 7—One-Way Slabs [Go to Page]
- 7.1—Scope
- 7.2—General
- 7.3—Design limits
- 7.4—Required strength
- 7.5—Design strength
- 7.6—Reinforcement limits
- 7.7—Reinforcement detailing
- Chapter 8—Two-Way Slabs [Go to Page]
- 8.1—Scope
- 8.2—General
- 8.3—Design limits
- 8.4—Required strength
- 8.5—Design strength
- 8.6—Reinforcement limits
- 8.7—Reinforcement detailing
- 8.8—Nonprestressed two-way joist systems - Out of Scope
- 8.9—Lift-slab construction
- Chapter 9—Beams [Go to Page]
- 9.1—Scope
- 9.2—General
- 9.3—Design limits
- 9.4—Required strength
- 9.5—Design strength
- 9.6—Reinforcement limits
- 9.7—Reinforcement detailing
- 9.8—Nonprestressed one-way joist systems - Out of Scope
- 9.9—Deep beams - See ACI CODE-318
- Chapter 10—Columns [Go to Page]
- 10.1—Scope
- 10.2—General - See ACI CODE-318
- 10.3—Design limits - See ACI CODE-318
- 10.4—Required strength - See ACI CODE-318
- 10.5—Design strength - See ACI CODE-318
- 10.6—Reinforcement limits
- 10.7—Reinforcement detailing
- Chapter 11—Walls [Go to Page]
- 11.1—Scope
- Chapter 12—Diaphragms [Go to Page]
- 12.1—Scope
- 12.2—General - See ACI CODE-318
- 12.3—Design limits - See ACI CODE-318
- 12.4—Required strength - See ACI CODE-318
- 12.5—Design strength
- 12.6—Reinforcement limits - See ACI CODE-318
- 12.7—Reinforcement detailing - See ACI CODE-318
- Chapter 13—Foundations [Go to Page]
- 13.1—Scope
- Chapter 14—Plain Concrete (out of scope)
- Chapter 15—Cast-in-Place Joints [Go to Page]
- 15.1—Scope
- Chapter 16—Connections between Members [Go to Page]
- 16.1—Scope
- Chapter 17—Anchoring to Concrete [Go to Page]
- 17.1—Scope
- Chapter 18—Earthquake-Resistant Structures [Go to Page]
- 18.1—Scope
- 18.2—General - See ACI CODE-318
- 18.3—Ordinary moment frames - See ACI CODE-318
- 18.4—Intermediate moment frames
- 18.5—Intermediate precast structural walls - Out of scope
- 18.6—Beams of special moment frames
- 18.7—Columns of special moment frames - See ACI CODE-318
- 18.8—Joints of special moment frames - See ACI CODE-318
- 18.9—Special moment frames constructed using precast concrete - See ACI/PCI-CODE 319
- 18.10—Special structural walls - See ACI CODE-318
- 18.11—Special structural walls constructed using precast concrete - See ACI/PCI CODE-319
- 18.12—Diaphragms and trusses
- 18.13—Foundations - See ACI CODE-318
- 18.14—Members not designated as part of the seismic-force-resisting system
- Chapter 19—Concrete: Design and Durability Requirements [Go to Page]
- 19.1—Scope
- 19.2—Concrete design properties - See ACI CODE-318
- 19.3—Concrete durability requirements - See ACI CODE-318
- 19.4—Grout durability requirements
- Chapter 20—Steel Reinforcement Properties, Durability,
and Embedments [Go to Page]
- 20.1—Scope
- 20.2—Nonprestressed bars and wires - See ACI CODE-318
- 20.3—Prestressing strands, wires, and bars
- 20.4—Headed shear stud reinforcement
- 20.5—Provisions for durability of steel reinforcement
- 20.6—Embedments - See ACI CODE-318
- Chapter 21—Strength Reduction Factors [Go to Page]
- 21.1—Scope
- 21.2—Strength reduction factors for structural concrete members and connections
- Chapter 22—Sectional Strength [Go to Page]
- 22.1—Scope
- 22.2—Design assumptions for moment and axial strength
- 22.3—Flexural strength
- 22.4—Axial strength or combined flexural and axial strength
- 22.5—One-way shear strength
- 22.6—Two-way shear strength
- 22.7—Torsional strength
- 22.8—Bearing - See ACI CODE-318
- 22.9—Shear friction - See ACI CODE-318
- Chapter 23—Strut-and-Tie Method [Go to Page]
- 23.1—Scope
- Chapter 24—Serviceability [Go to Page]
- 24.1—Scope
- 24.2—Deflections due to service-level gravity loads
- 24.3—Distribution of flexural reinforcement in one-way slabs and beams
- 24.4—Shrinkage and temperature reinforcement
- 24.5—Permissible stresses in prestressed concrete flexural members
- Chapter 25—Reinforcement Details [Go to Page]
- 25.1—Scope
- 25.2—Minimum spacing of reinforcement - See ACI CODE-318
- 25.3—Standard hooks, seismic hooks, crossties, and minimum inside bend diameters - See ACI CODE-318
- 25.4—Development and anchorage of reinforcement - See ACI CODE-318
- 25.5—Splices - See ACI CODE-318
- 25.6—Bundled reinforcement - See ACI CODE-318
- 25.7—Transverse reinforcement - See ACI CODE-318
- 25.8—Post-tensioning anchorages and couplers
- 25.9—Anchorage zones for post-tensioned tendons
- Chapter 26—Construction Documents and Inspection [Go to Page]
- 26.1—Scope
- 26.2—Design criteria - See ACI CODE-318
- 26.3—Member information - See ACI CODE-318
- 26.4—Concrete materials, mixture requirements, and grouts - ACI CODE-318
- 26.5—Concrete production and construction - See ACI CODE-318
- 26.6—Reinforcement materials and construction requirements - See ACI CODE-318
- 26.7—Anchoring to concrete - See ACI CODE-318
- 26.8—Embedments - See ACI CODE-318
- 26.9—Additional requirements for precast concrete - See ACI/PCI CODE-319
- 26.10—Additional requirements for post-tensioned concrete
- 26.11—Formwork - See ACI CODE-318
- 26.12—Evaluation and acceptance of hardened concrete - See ACI CODE-318
- 26.13—Inspection - See ACI CODE-318
- Chapter 27—Strength Evaluation of Existing Structures [Go to Page]
- 27.1—Scope
- Commentary References [Go to Page]
