INHIBITING LIMITATIONS IN EXISTING SYSTEMS We examined the limitations faced by cast-in-place concrete, precast concrete, and structural systems in providing superior and economical seismic performance. For example, precast concrete minimizes costly field labor and maximizes component quality, but limitations in current building codes restrict its widespread use in seismic applications.
BUILDING SYSTEM DEVELOPMENT Recognizing the disadvantages and capitalizing on the inherent advantages of precast concrete, We developed an alternative connector that produces a precast seismic frame system that enhances both economic and seismic performance. It eliminates field welding and structural grouting while providing a precast seismic system that maximizes open space.
PROTOTYPE TESTING AND CRITERIA DEVELOPMENT We developed and implemented a prototype-testing program to provide objective evidence of superior performance. Design criteria were also developed to assist the design professional in designing the Dywidag Ductile Connector.
TECHNICAL REPRESENTATION TO SECURE REGULATORY APPROVAL Innovative systems require regulatory approval before they can be used in projects. We prepared required documentation and successfully navigated the difficult path to secure ICBO approval to use the Dywidag Ductile Connector.
DESIGN GUIDANCE We assembled a team of experienced structural designers to provide design guidance and effectively implement system designs using the Dywidag Ductile Connector.
