Concrete reinforcement: what is double reinforcement? What is two-way reinforcement? What are their differences and applicable occasions?

2. Two-way strengthening refers to strengthening in two directions.

3. Two-way reinforcement is widely used, such as floor slab, pool wall and foundation.

4. It should be two-way reinforcement.

5. It should be two-way reinforcement.

PS: Please make it clear when the landlord asks questions next time.