scope:

These Guide Specifications are intended for the repair and strengthening of reinforced and prestressed highway bridge structures using externally bonded fiberreinforced polymer (FRP) composite systems. These Guide Specifications supplement the AASHTO LRFD Bridge Design Specifications, Ninth Edition, 2020 (AASHTO LRFD). Except where specifically provided below, all provisions of AASHTO LRFD shall apply.

These Guide Specifications state only the minimum requirements necessary to provide for public safety and are not intended to supplant proper training or the exercise of judgment by the Engineer of Record. The Owner or the Engineer of Record may require the structural design or the quality of materials and construction to exceed the minimum requirements.

These specifications employ the Load and Resistance Factor Design (LRFD) methodology, in which the load and resistance factors have been developed from structural reliability theory based on current probabilistic/statistical models of loads and structural performance.

Seismic design shall be in accordance with either the provisions in the appropriate sections of AASHTO LRFD or the provisions in the AASHTO Guide Specifications for LRFD Seismic Bridge Design.

Except where specifically provided below, all provisions of the AASHTO LRFD Bridge Construction Specifications shall apply.