RJ Watson, Inc.

Polyset Presentation

Mon, 18 Jan 2010 16:33:07 -0500

Presentations

Mon, 18 Jan 2010 08:14:03 -0500

EQS

Sat, 07 Feb 2009 11:27:07 -0500

The EQS transfers the energy of a moving mass (kinetic energy), such as a bridge deck during an earthquake, into heat and spring (potential energy). This is done through the MER which connects the superstructure to the substructure. The EQS can be adjusted at the direction of the design engineer to achieve a wide variety of energy dissipation levels. This is because the EQS is designed to dissipate energy through friction.

By adjusting the friction levels the amount of damping can be controlled. This extraordinary feature gives the engineer the ability to optimize the structural design. Unlike an elastomeric isolation bearing, the lateral effective stiffness of an EQS bearing can be varied in different directions to optimize the response of a structure.

Do you have a project that requires special bearing considerations? Or would you like more detailed bearing dimensions than available here? Please download our Design Questionnaire and send it to our design team for free, no obligation design services.

Bearings

Sat, 07 Feb 2009 11:24:48 -0500

Multirotational Disk Bearings - Disktron

The Disktron Bearing is a highload multirotational compact disk bearing which accommodates design loads of 10 to 10,000 kips while providing rotational capabilities in both longitudinal and transverse directions. Thousands of RJ Watson bearings have been tested and installed worldwide.

Sliding Isolation Disk Bearings - EQS

R.J. Watson's Bridge Disk Bearings feature The EradiQuake System (EQS) which is a state of the art seismic isolation disk bearing system designed to minimize forces and displacements experienced by structures during an earthquake.

Disktron Bearing Design Questionnaire

EQS Bearing Design Questionnaire

Disktron Bearings

Sat, 07 Feb 2009 09:58:44 -0500

Multirotational Disk Bearings - Disktron

The Disktron Bearing is a highload multirotational compact disk bearing which accommodates design loads of 10 to 10,000 kips while providing rotational capabilities in both longitudinal and transverse directions. Thousands of RJ Watson bearings have been tested and installed worldwide.

Disktron Bearing Design Questionnaire

Disktron Specification

Bridge Bearings

Sat, 07 Feb 2009 09:58:44 -0500

Sliding Isolation Disk Bearings - EQS

Disktron Bearing Design Questionnaire

EQS Bearing Design Questionnaire

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Sat, 27 Sep 2008 09:33:08 -0400

Contact Us | 716.691.3301

Thu, 20 Mar 2008 15:12:35 -0400

Upcoming Events

Wed, 06 Feb 2008 06:40:14 -0500

February 24 - 26

2010 Concrete Bridge Conference

Phoenix, AZ - Booth 118

April 8 - 9

2010 FHWA Bridge Engineering Conference

Orlando, Florida - Booth 205

April 21 - 23

2010 Design Build Transportation Conference

Grapevine, Texas - Booth 218

Spray Applied Membrane

Tue, 05 Feb 2008 14:42:59 -0500

BDM Bridge Membrane is a cold spray applied waterproofing membrane for use on railway bridge decks, piers and abutments. The system provides protection from corrosion and freeze-thaw damage in all climates and conditions found in North America. This seamless, highly flexible joint system assures a complete watertight system for bridge decks and has been independently tested and certified to exceed AREMA Chapter 29, Section 2.3.10.

Fiber Composites

Tue, 05 Feb 2008 14:42:32 -0500

The TYFO Fibrwrap System is a high strength fiber composite material designed to strengthen and rehabilitate columns, beams, walls, tanks, girders, piles, slabs, chimneys, pipes, poles and other structural elements.

For more information go to www.fyfeco.com

Bridge Expansion Joints

Tue, 05 Feb 2008 14:42:01 -0500

Silicoflex Bridge Deck Joint Sealing System is a preformed silicone joint that is bonded to concrete, elastomeric concrete, polymer concrete and steel joint interfaces. It is a long term solution to the ever present problem of sealing deck joints on highway bridges, parking structures, railroad bridges and other structures experiencing thermal displacements.

Poly-Tron Elastomeric Concrete is an easy to mix, three component, modified polyurethane elastomeric concrete. Poly-Tron is used primarily as an expansion joint edge material. It has excellent adhesion to various substrates, is flexible yet tough and provides excellent impact resistance. Poly-Tron is resistant to U.V. and ozone exposure and resists freeze-thaw changes.

Tronflex Elastomeric Concrete is used primarily as an expansion joint edge material, a flexible nosing material for metallic expansion joint assemblies, and a patching compound for spalls in concrete deck surfaces.

UraTron Sealant is a two component, self leveling, fast curing, urethane sealant for use in deck joint sealing.

ZED Seal is an enhanced co-polymer foam designed to give greater resilience and higher tensile and tear performance. The seal is bonded into place with a high stength single component adhesive. ZED Seal will permanently bond to concrete, steel or elastomeric concrete joint surfaces.

ETIC Expansion Joints are available in Aluminum Saw-Tooth design 110 and 160 mm movement capabilities and in Steel Finger Joint design from 100 to 500 mm capacities in 50 mm increments or to custom requirements.

Disk Bearings

Tue, 05 Feb 2008 14:41:35 -0500

Multirotational Disk Bearings - Disktron

The Disktron Bearing is a highload multirotational compact disc bearing which accommodates design loads of 10 to 10,000 kips while providing rotational capabilities in both longitudinal and transverse directions. Thousands of RJ Watson bridge bearings have been tested and installed worldwide.

Sliding Isolation Disk Bearings - EQS

R.J. Watson's Seismic Bearings feature The EradiQuake System (EQS) which is a state of the art seismic isolation disc bearing system designed to minimize forces and displacements experienced by structures during an earthquake.

Spherical Bearings

RJW Spherical Bearings are used to accommodate thermal, seismic and mechanical expansion and contraction and also provide multidirectional rotation for highway bridges, railway bridges and other civil engineering structures.

Disktron Bearing Design Questionnaire

EQS Bearing Design Questionnaire