The structural strength of steel is calculated by measuring the pounds of applied force through the direct method or the effective width method. The calculated equation provides the yield strength of the steel.
Steel manufacturers determine the point at which the object deforms or buckles but does not return to its original shape or position, which is known as the yield point. The calculation of strength is usually based on one of the six types of stress:
The direct method of calculating structural strength is based on the yield point of the object, while the effective width method takes into account the effects of stress on the total load and a uniformly distributed stressor, rather than the impact of a stressor on only a cross section of the object.