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SEQUENTIAL CONNECTOR: A NEW STRUCTURAL CONNECTION FOR EARTHQUAKE RESISTANT…

Award Information

Agency:
National Science Foundation
Branch:
N/A
Award ID:
21792
Program Year/Program:
1993 / SBIR
Agency Tracking Number:
21792
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
Weidlinger Associates, Inc.
40 Wall Street 18th Floor New York, NY 10005-
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Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
 
Phase 1
Fiscal Year: 1993
Title: SEQUENTIAL CONNECTOR: A NEW STRUCTURAL CONNECTION FOR EARTHQUAKE RESISTANT STEEL STRUCTURES
Agency: NSF
Contract: N/A
Award Amount: $50,000.00
 

Abstract:

THERE EXIST NUMEROUS DEVICES THAT IMPROVE THE PERFORMANCE OR REDUCE THE COST OF EARTHQUAKE RESISTANT STRUCTURES. THESE DEVICES, SUCH AS DAMPERS, ISOLATORS, ENERGY DISSIPATORS, AND ACTIVE CONTROLS, USE MATERIALS AND TECHNOLOGY THAT ARE QUITE NEW AND UNTRIED. THEIR LONG-TERM ENDURANCE, MAINTENANCE REQUIREMENTS, AND PRACTICAL APPLICABILITY HAVE YET TO BE DEMONSTRATED. RESEARCHERS ARE DEVELOPING A DEVICE THAT IS COMPLETELY WITHIN THE STATE-OF-THE-ART OF STANDARD STRUCTURAL STEEL CONSTRUCTION. IT CONSISTS OF A SPECIALIZED CONNECTOR CALLED THE "SEQUENTIAL CONNECTOR" THAT ADMIST AN INITIAL, LIMITED, AND REPEATED ZERO RESISTANCE SLIP UNDER LOADING. THIS CONNECTOR IS USED FOR SOME OF THE CONNECTIONS IN A STANDARD STRUCTURE. A STRUCTURAL ELEMENT, CONNECTED BY MEANS OF THE SEQUENTIAL CONNECTOR TO A LATERAL FORCE RESISTING SYSTEM, AUGMENTS THE RESISTANCE OF THE SYSTEM WITHOUT A CORRESPONDING INCREASE IN ITS RESPONSE FREQUENCY. THIS UNIQUE PROPERTY PRODUCES A RESPONSE TO SEISMIC EXCITATION THAT IS SIGNIFICANTLY LOWER THAN THE DISPLACEMENT RESPONSE IF A STANDARD CONNECTION IS USED. THE DEVELOPMENT AND APPLICATION OF THIS INNOVATION WILL SIGNIFICANTLY REDUCE THE COST OF EARTHQUAKE MITIGATION AND IMPROVE THE PERFORMANCE OF STEEL BUILDINGS.

Principal Investigator:

Paul Weidlinger
2125635200

Business Contact:

Small Business Information at Submission:

Weidlinger Associates
333 7th Ave New York, NY 10001

EIN/Tax ID:
DUNS: N/A
Number of Employees: N/A
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No