Section 3: Strut-and-Tie Method
Structural Analysis
Do not use strut-and-tie for girders and bent caps that fall within the standard practice reflected in the Bridge Standards.
Use Strut and Tie Modeling or other refined analysis method when designing footings, dapped beam ends, post-tensioning anchorage zones, deviation diaphragms, bents that use high load bearings, and other special designs.
Design Criteria
For members designed with strut-and-tie, check the calculated shear, using the Service I Load Combination, against the resistance from Equation C5.8.2.2-1.
For members designed with strut-and-tie, check two-way shear at concentrated loads and reactions per Article 5.12.8.6.3.