Civil Engineering Professional Engineer Practice Exam 2026 - Free PE Practice Questions and Study Guide

Structural engineering primarily incorporates physics, with a strong emphasis on mechanics. This discipline is fundamental because structural engineers must understand how forces and loads affect structures, ensuring stability, safety, and durability. Mechanics, a branch of physics, deals with the behavior of physical bodies when subjected to forces or displacements, making it essential for evaluating how structures will perform under various loads, including static and dynamic conditions.

While mathematics plays a crucial role in structural engineering, particularly in calculations and modeling, it serves as a tool for implementing the principles derived from physics rather than the primary discipline itself. Similarly, while understanding material properties is important, particularly in the context of selecting appropriate materials for different structural applications, it revolves around the physics of those materials. Lastly, though ecological considerations are relevant in modern engineering practices, biology does not form the primary basis of structural engineering, which is fundamentally rooted in the physical sciences. Thus, physics, particularly mechanics, is at the core of structural engineering.