Committee Home

Committee Mission: Develop and report information on precast concrete structures.

Goals: Update ACI 550.1R-09.

Chair: Suzanne Aultman

TAC Contact: Lawrence Kahn

Upcoming Open Meetings:
ACI Fall Convention 2019 - 10/20/2019 3:00 PM-5:00 PM - C-202, Cincinnati, OH

Upcoming Convention Sessions:
Precast Concrete Research Updates and General Practice Review
ACI Spring Convention 2020 - Rosemont, IL

Published Committee Documents:
• 550.1R-09: Guide to Emulating Cast-in-Place Detailing for Seismic Design of Precast Concrete Structures (Reapproved 2017)
• 550.2R-13 Design Guide for Connections in Precast Jointed Systems
• 550.3-13 Design Specification for Unbonded Post-Tensioned Precast Concrete Special Moment Frames Satisfying ACI 374.1
• 550.3M-13 Design Specification for Unbonded Post-Tensioned Precast Concrete Special Moment Frames Satisfying ACI (Metric)
• 550.5-18:Code Requirements for the Design of Precast Concrete Diaphragms for Earthquake Motions (ACI 550.5) and Commentary (ACI 550.5R)
• 550.5M-18: Code Requirements for the Design of Precast Concrete Diaphragms for Earthquake Motions (Metric)
• 550.4-18: Qualification of Precast Concrete Diaphragm Connections and Reinforcement at Joints for Earthquake Loading (ACI 550.4-18) and Commentary (550.4R-18)
• 550.4M-18: Qualification of Precast Concrete Diaphragm Connections and Reinforcement at Joints for Earthquake Loading and Commentary
• 550.6-19: Acceptance Criteria for Special Unbonded Post-Tensioned Precast Structural Walls Based on Validation Testing and Commentary
• 550.6M-19: Acceptance Criteria for Special Unbonded Post-Tensioned Precast Structural Walls Based on Validation Testing and Commentary (SI Units)
• 550.6-19: Acceptance Criteria for Special Unbonded Post-Tensioned Precast Structural Walls Based on Validation Testing and Commentary

See all 550 Committee Documents...