Which category describes stresses produced in structural members due to the weights they support?

Which category describes stresses produced in structural members due to the weights they support?

• A. Thermal stress
• B. Structural stress
• C. Fatigue stress
• D. Pressure stress

Answer: (B)

The stresses produced in structural members by the weights they support are called structural stresses. They arise from external loads the member must carry—its own weight plus any dead or live loads (like equipment, occupants, snow, etc.). To balance these loads, the member develops internal forces that produce bending, axial, and shear stresses. For example, a beam under load experiences a bending moment that creates tensile stress on one side and compressive stress on the other. This type of stress is distinct from thermal stress (caused by temperature changes), fatigue stress (from repeated loading cycles), and pressure stress (from fluid or external pressure acting on surfaces).

The stresses produced in structural members by the weights they support are called structural stresses. They arise from external loads the member must carry—its own weight plus any dead or live loads (like equipment, occupants, snow, etc.). To balance these loads, the member develops internal forces that produce bending, axial, and shear stresses. For example, a beam under load experiences a bending moment that creates tensile stress on one side and compressive stress on the other. This type of stress is distinct from thermal stress (caused by temperature changes), fatigue stress (from repeated loading cycles), and pressure stress (from fluid or external pressure acting on surfaces).