Florida Building Code Practice Exam

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When girders are spliced over a support, what is the minimum bearing required on concrete or masonry?

2 inches
3 inches
4 inches
6 inches

The correct answer is: 3 inches

The minimum bearing required on concrete or masonry when girders are spliced over a support is 3 inches. This requirement ensures that the load from the girder is adequately transferred to the support without risking structural integrity. A bearing length of this dimension provides enough area for proper load distribution and minimizes the potential for localized failure at the splice, which could occur if the bearing were insufficient. It also helps in accommodating any imperfections in the concrete or masonry surface, ensuring that the girder remains stable and secure over its support. Adequate bearing length is a critical consideration in the design of structural systems to maintain safety and performance standards as specified in the Florida Building Code.