Seismic Elastomeric Bearings - Testing Problems
Seismic Elastomeric Bearings - Testing Problems
(OP)
We have some Steel Laminated Elastomeric Bearings to be used on a bridge for both thermal movement and seismic isolation. The testing requirements for the bearings states that each bearing shall be shear tested for a displacement of 5.25 inches. The laminated bearings are only 4.025 inches total thickness. Per AASHTO Method A & B the total height of the bearing is to be greater than or equal to 2 times the shear displacement. Does anyone know if a laminated bearing of only 4.025 inches will be able to shear 5.25 inches without failure? Does anyone have any similar experience with steel laminated elastomeric bearings? By exceeding the AASHTO requirements, is the bearing destined to fail?
Thank you for any help.
Thank you for any help.





RE: Seismic Elastomeric Bearings - Testing Problems
RE: Seismic Elastomeric Bearings - Testing Problems
With that said, the shear displacement value does seem odd for the bearing height.
RE: Seismic Elastomeric Bearings - Testing Problems
RE: Seismic Elastomeric Bearings - Testing Problems
RE: Seismic Elastomeric Bearings - Testing Problems
Regards,

Qshake
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