What type of movement is accommodated by a strip seal expansion joint?

A strip seal expansion joint is designed to accommodate both horizontal and vertical movements that occur in a bridge as a result of temperature changes, traffic loads, and other external factors. These joints are typically used in structures where there is a need for movement due to thermal expansion and contraction.

The design of strip seal joints allows for horizontal movement, which is often caused by temperature variations that expand or contract the bridge deck. At the same time, the flexible nature of the materials used in these joints helps accommodate vertical movements as well, such as those caused by traffic loads or settling of the bridge elements over time. This dual capability is crucial in maintaining the structural integrity and functionality of bridges, preventing damage and ensuring a smoother connection between sections of the bridge deck.

Other options suggest more limited movement capabilities, which do not accurately reflect the function of a strip seal expansion joint, as it is specifically engineered to handle both types of movements effectively.