What comprises an assembly joint without a seal in a sliding plate configuration?

In a sliding plate configuration, an assembly joint without a seal typically consists of two steel plates sliding against one another. This design allows for relative movement between the plates, accommodating thermal expansion, contraction, and other dynamic forces that might act on the bridge structure. The lack of a seal means that there is no barrier between the two plates, which is essential for a sliding system since seals can create friction and resistance, hindering the intended movement.

This type of joint is crucial in bridge design as it facilitates the necessary movement while reducing stress on the bridge components, ensuring durability and functionality. The simplicity and effectiveness of using steel plates in this manner underpins the proper operation of many bridge systems where movement and flexibility are necessary for structural integrity.