The principal failure due to weak connectors between floors, walls, and the roof, causing precast sections to break loose, is associated with which construction type?

• A. Heavy Frame Steel
• B. Heavy Floor
• C. Heavy Wall
• D. Precast

Answer: (D)

In precast construction, the building is assembled from components that are manufactured off-site and then connected together on site. Those connections between floors, walls, and the roof must transfer the loads and keep the elements acting as a single system. If the connectors are weak or poorly detailed, the load transfer path can fail, causing precast panels or sections to separate and break loose. This failure pattern—sections coming apart because the joints between elements can’t carry the required forces—is a hallmark of precast systems, where stability depends on the integrity of the connectors rather than a continuous frame or monolithic pours.