North Carolina Building Contractor License Practice Exam

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How far apart should roof diaphragms be anchored to masonry walls with bolts?

4 feet on center
6 feet on center
8 feet on center
10 feet on center

The correct answer is: 6 feet on center

The correct answer is based on the guidelines specified in building codes and standards regarding the anchoring of roof diaphragms to masonry walls. Anchoring roof diaphragms is crucial for maintaining structural integrity, especially in areas that may be susceptible to lateral forces, such as wind or seismic activity. The standard practice generally recommends that roof diaphragms should be anchored to masonry walls at intervals of 6 feet on center. This spacing helps ensure that the diaphragm is adequately connected to the supporting structure, distributing loads effectively and minimizing the potential for structural failure. When the anchoring is spaced too far apart, it can lead to insufficient support, allowing for excessive movement or deformation of the diaphragm, which could jeopardize the safety of the building. While other intervals for anchoring might be used in specific scenarios or materials, 6 feet on center is widely accepted as a standard recommendation that balances structural requirements and practical construction considerations. This is particularly important in maintaining compliance with local building regulations and ensuring the safety and longevity of the structure.