Steel web bar joists are sized based on which anticipated loads?

Steel web bar joists are designed to support both live and dead loads, making the choice that identifies both types of loads correct.

Dead loads refer to the permanent static forces that are always present in a structure, such as the weight of the building materials (beams, floors, roofs) themselves. Live loads, on the other hand, represent temporary or dynamic forces that a structure may experience, such as occupants, furniture, equipment, and other movable items.

When sizing steel web bar joists, engineers must take into consideration both dead and live loads to ensure the structure can safely support the total weight it may encounter during its lifespan. This comprehensive assessment of loads allows for the appropriate design and integrity of the joists, which is crucial for overall structural safety and performance. Recognizing the importance of both types of loads enables engineers and contractors to create safer, more resilient structures.