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Title:
Bridge Expansion Joints and Bearings
Presenter: Dick Miles
Due to thermal expansion and
contraction…bridges move. The length of a bridge or an individual
span can determine how much it will move with the varying
temperatures. In this presentation we will explain why Elastomeric
Bearings are needed under bridge girders and the different types of
bearings that can be used under various structures.
Expansion Joints provide a smooth
transition for traffic between the bridge and the roadway while
accommodating movement. We will explain the various types of
Expansion Joints used in our area, what is good and bad about them,
how to install them and how to inspect them.
Dick has
been dealing with Expansion Joints and Bearings since the 1970s, so
he can give a broad perspective on the history behind their use and
development.
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