COMBINED DEFLECTIONS

Very often an expansion joint must accept a combination of some or all of the above deflections, most often because of space limitations in the system. In order to clearly understand whether the proper expansion joint is selected, the movements should, if possible, be broken down into the above various types and stated that way in the specification. Then PT&P's expansion joint designer will confirm that the offered expansion joint can accept each of these types of movements, when combined. Most catalogs, including this one, give the movement capability of each expansion joint in an uncombined form, or "non-concurrent." Page 43 of this catalog shows the method by which various movements should be combined when determining a single equivalent deflection which can then be used for the proper expansion joint selection.

Axial Deflection | Angular Deflection | Lateral Deflection | Torsional Deflection | Combined Deflections | Cyclic Deflections and Cycle Life

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