Proper Modeling for Expansion Joint in C2

[MELEED]

Could anyone share how to model an expansion joint with limit rod tightened on one end in Caesar II?

 

[C2it]

Read the Caesar II User Guide supplied with your software.

 

[MELEED]

Thank you C2it!

 

[howmansito]

THERE IS ANY WAY TO CALCULATE THE BENDING STIFF OR THE TORSION STIFF (IN.LB/DEG) OF A RUBBER EXPANSION JOINT???, IN CATALOGS ONLY SHOWS ALLOWABLE MOVEMENTS (IN or DEG), GENERAL SPRING RATE (LB/IN), AXIAL SPRING RATE (LB/IN) AND ROTATIONAL SPRING RATE (LB/DEG), THANKS REGARD.

 

[C2it]

The simple answer to your question is, there is no way.

The only realstic route to obtain proper results for a typicl rubber EJ would be with a calibrated test rig.

There are many reasons for this, for example, the longitudinal rotational spring rate of this kind of EJ is a fuction of axial compression. It is not a constant value as would be found in a metallic unit.

However, in most cases, for the normal range of imposed movements, the forces and moments developed by a rubber EJ are so small as to be insignificant.

 

[simon17]

You should contact the manufacturer for this information.