A multistory frame building with a weakening first story requires what type of shoring?

In the context of a multistory frame building with a weakening first story, lateral or diagonal shoring is essential for providing stability and support to the structure. The weakening of the first story creates a risk of potential collapse, particularly as loads from the upper floors may cause lateral forces to act on the weakened area. Implementing lateral or diagonal shoring helps counteract these forces by transferring the loads safely through the structure and into the ground, thereby preventing further movement and ensuring the safety of both the rescuers and any individuals who may still be inside the building.

Utilizing lateral or diagonal shoring forms a critical component in maintaining the integrity of the building during rescue operations, as it helps stabilize the structure and mitigates the risks associated with a partial or total collapse. Thus, this type of shoring is the most appropriate solution in situations where vertical support needs reinforcement, as it complements the existing load paths and ensures overall stability during emergency interventions.