Inquiry (采购产品): Isolator properties requested I am working on a research project at Georgia Tech concerning retrofitting of mid-America bridges using elastomeric bearings. I am attempting to design the bearings per the AASHTO Guide Specifications for Seismic Isolation Design. I am attempting to design the bridge for a target period but am in need of isolator properties (elastomer material constant, bulk modulus, shear modulus, etc.) in order to calculate the effective stiffness of the bridge and so on. I was wondering, are there general values for all bearings or do they vary per site and structure? I was hoping to design these based on generally used design values, but I was unsure if there even any general values used or if they vary per isolator design. I hope that made sense. Please contact me if you can offer any assistance. Thanks, Dustin Reed **** Hidden Message ***** Dustin Reed 482 Calhoun Street Atlanta, GA 30318 USA Company: Georgia Institute of Technology Phone: 404-433-6651 E-mail: gte454v@mail.gatech.edu **** Hidden Message ***** gte454v@mail.gatech.edu