ACI 562 can serve as a valuable reference for the unique considerations of repair projects, such as the restoration of this historic, reinforced-concrete-filled arch bridge. The code is “applicable to existing concrete structures, including the concrete elements of buildings, nonbuilding structures when required by the building official, building foundation members, soil-supported structural slabs, concrete portions of composite members, and precast concrete cladding that transmits lateral loads to diaphragms or bracing members."
Credit: ACI ACI 562 can serve as a valuable reference for the unique considerations of repair projects, such as the restoration of this historic, reinforced-concrete-filled arch bridge. The code is “applicable to existing concrete structures, including the concrete elements of buildings, nonbuilding structures when required by the building official, building foundation members, soil-supported structural slabs, concrete portions of composite members, and precast concrete cladding that transmits lateral loads to diaphragms or bracing members."

Although the title of ACI 562, Code Requirements for Evaluation, Repair, and Rehabilitation of Concrete Buildings, may suggest otherwise, it can provide guidance for repairing other structures.

The code is “applicable to existing concrete structures, including the concrete elements of buildings, nonbuilding structures when required by the building official, building foundation members, soil-supported structural slabs, concrete portions of composite members, and precast concrete cladding that transmits lateral loads to diaphragms or bracing members.”

Transportation engineers typically follow American Association of State Highway and Transportation Officials (AASHTO) specifications. Although developed with ACI codes, they’re more conservative since bridges perform differently than buildings.

ACI 562 can be used to update AASHTO specifications or serve as an engineer's tool, especially for repair-related practices that other codes don’t address.

The code includes provisions for evaluation, repair, rehabilitation, and strengthening of existing concrete elements that may be universally applied to buildings or other structures. Sections include:

  • Chapter 6: Evaluation & Analysis — conducting a structural evaluation; determining the strength of concrete and reinforcing steel based on existing material properties
  • Chapter 7: Design of Structural Repairs — achieving the intended performance of repaired members and structure requirements
  • Chapter 10: Quality Assurance — testing and inspection, following an existing building code or local jurisdiction requirements.