Question

Which statement best describes the importance of joints in the roadways of Bridges ?

a. Joints strengthen the roadway to support cars and trucks

b. Joints allow the roadway to expand and

contract with varying outside temperatures

c. Joints allow the roadway to expand and contract as cars put force on the bridge

d. Joints allow the bridge to be built in smaller, easier to assemble pieces.

Answer 1

c. Joints allow the roadway to expand and contract as cars put force on the bridge

Step-by-step explanation:

The reasons why joints are allowed on roadway is to accommodate the contraction and expansion of the road as cars put force on them.

• Most materials used in making roadways are susceptible to expansion and contraction.
• When a measure of force is applied their length either increases or decreases depending on the type of force.
• To accommodate these changes, joints are placed in roadways