Final answer:
The performance problems associated with flexible diaphragms in bearing walls of reinforced masonry include cracking, excessive deflection, and failure of connections between walls and diaphragms.
Step-by-step explanation:
The performance problems associated with flexible diaphragms in bearing walls of reinforced masonry include:
- Cracking of masonry walls: Flexible diaphragms can induce stress concentrations in the masonry walls, leading to cracking.
- Excessive deflection of walls: If the diaphragm is too flexible, it can cause excessive deflection of the walls, compromising their structural integrity.
- Failure of connections between walls and diaphragms: The flexibility of the diaphragms may lead to inadequate connections between the walls and diaphragms, resulting in failure.
Therefore, the correct answer is 4) All of the above.