Mechanical structures are physical systems designed to support loads and withstand forces. They are commonly made from materials like steel, concrete, or wood and can be found in various forms, such as bridges, buildings, and machinery. These structures are engineered to ensure stability, safety, and functionality in their intended applications. The design of mechanical structures involves principles of mechanics and engineering. Factors such as weight, stress, and environmental conditions are considered to optimize performance. Properly designed structures can efficiently distribute loads and resist deformation, ensuring they remain safe and effective over time.