National Council of Examiners for Engineering and Surveying (NCEES) Fundamentals of Engineering (FE) Other Disciplines Practice Exam

A diaphragm in buildings primarily serves the function of providing lateral stability, especially during events such as earthquakes or strong winds. It acts as a horizontal structural element that connects vertical elements like walls or columns, distributing lateral forces evenly across the structure. This connection helps prevent excessive sway or movement, which could lead to structural failure.

Diaphragms are typically constructed from reinforced concrete, steel, or wood, and are designed to ensure that the lateral loads imposed on the building are effectively transferred to the vertical resisting elements. This is crucial in maintaining the integrity of the building under dynamic loads, ensuring that it can withstand the forces generated by seismic activity or high winds, thereby protecting the building and its occupants.

Understanding the role of a diaphragm is key in the analysis and design of buildings, particularly in seismic-prone regions where lateral forces are a significant concern.