The correct answer is: C. both (A) and (B).
Anti-creep bearing plates are used to reduce the creep of concrete structures. They are typically made of steel or aluminum and are placed between the concrete and the foundation. The plates help to distribute the load more evenly and prevent the concrete from deforming.
Anti-creep bearing plates are often used on bridges and approaches, as these structures are subject to a lot of weight and vibration. They can also be used on other concrete structures, such as buildings and retaining walls.
Here is a brief explanation of each option:
- Option A: Bridges and approaches. Bridges and approaches are often subject to a lot of weight and vibration. This can cause the concrete to deform, which can lead to cracks and other problems. Anti-creep bearing plates help to reduce the creep of concrete structures by distributing the load more evenly and preventing the concrete from deforming.
- Option B: Joints. Joints are used to connect two pieces of concrete together. They allow for movement between the pieces of concrete, which can help to prevent cracking. Anti-creep bearing plates can be used in joints to help reduce the creep of concrete structures.
- Option C: Both (A) and (B). Anti-creep bearing plates are often used on bridges and approaches, as these structures are subject to a lot of weight and vibration. They can also be used on other concrete structures, such as buildings and retaining walls.