Elastomeric Isolation Bearings
Elastomeric Isolation Bearings
(OP)
Does anyone here have experience designing elastomeric seismic isolation bearings with bolted connections (or doweled) I guess? If so, I was wondering how you go about checking stability at design/maximum displacement levels. For doweled connections you have rollover to consider as well, but I am primarily interested in regard to buckling.
Do you use AASHTO or other codes/specs? I'm more interested in the application to buildings, but 17.2.4.6 in ASCE 7-05 just basically states, "each element of the isolation system shall be designed to be stable under the design vertical load where subjected to a horizontal displacement equal to the total maximum displacement"
Thanks.
Do you use AASHTO or other codes/specs? I'm more interested in the application to buildings, but 17.2.4.6 in ASCE 7-05 just basically states, "each element of the isolation system shall be designed to be stable under the design vertical load where subjected to a horizontal displacement equal to the total maximum displacement"
Thanks.






RE: Elastomeric Isolation Bearings
Thanks.
RE: Elastomeric Isolation Bearings
Have you tried contacting a Isolator Manufacturer? We have worked with DIS, inc in the past (http://www.dis-inc.com/). You probably need some input from a Manufacturer anyway to get your stiffness (horizontal and vertical) values as well as bearing size and capacity.
They have an office here in the US and should be willing to assist. We tried tracking down other Isolator companies but most are not in US (Britain, Australia, Asia, etc.)
RE: Elastomeric Isolation Bearings