CON-SERV Inc will supply elastomeric bearing pads to provide structural support in bridges as well as commercial and industrial buildings, petro-chemical and power plant applications. These parts, depending on the type of elastomer, provide uniform load transfer, accommodate thermal movement, allow for end-beam rotation and isolate components of the structure against vibration, noise and shock. CON-SERV Inc designs and produces both AASHTO grade neoprene pads as well as AASHTO grade preformed fabric pads. These pads can also be supplied with filled Teflon® (PTFE) bonded to them for use as the lower element in a slide bearing which will provide for longitudinal movement as well as the rotation required.
The following formula has proven successful in calculating the thickness of the preformed fabric pad to accept a given rotation. This formula allows for the internal stresses built up in the pad upon rotation.
PF Thickness Required = (W x tan a) / C
W = width of pad in rotation direction C = coefficient of friction
CON-SERV Inc recommends an 11 ga. plate be laminated every 2" in pads over 2" thick for strength and stability.
These materials will substitute for neoprene in areas where vibration or heavier loads are present. The random fiber material is well-suited to concrete construction as a cost-saving alternative to neoprene or preformed fabric pads. These materials may be provided with holes, slots or surfaced with Teflon (PTFE). CON-SLIDE™ Type RFR may also be used in conjuntion with a Type CSA or CSB assembly. Please consult CON-SERV Engineering Department.