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Structures Design

Structures Design / Divisions

Structures Research Center

Picture of the MainStreet Bridge in Florida

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Lab Interior

Load Truck
  • Welcome

  • The Marcus H. Ansley Structures Research Center, located at Innovation Park in Tallahassee, Florida is a structural research and testing facility for the Florida Department of Transportation. The primary mission of the Structures Research Center is to provide research, testing, and evaluations of innovative structural components and bridge systems along with testing existing inventory to provide for safe, reliable, and cost efficient structures across the State's highway system.
  • Our vision is to provide the Department the highest quality technical expertise in the field of structural research and structural testing.
  • News

  • Flexure Tests of Piles Prestressed with Stainless Steel
    Posted: August 24, 2017
    XM-29 Test Setup
    Corrosion resistant strands are not only desirable in any environment, but are essential in extremely corrosive environments. These strands, currently required in piles set in coastal environments, are being studied for use in prestressed concrete girders. An initial testing phase took pile specimens leftover from Contract#: BDK84-977-07 and tested them in a 4-point bending setup. Each specimen was pretensioned with a different stainless steel alloy. Results will aid the development of the AASHTO girder specimens for the final testing phases.

  • Fatigue of Unbonded Post-Tensioned Tendons
    Posted: January 17, 2017
    FDOT is investigating fretting fatigue life of post-tensioned tendons due to the recent policy change to use flexible fillers in post-tensioned applications. Research on post-tensioned concrete has found that the expected fatigue life of pre-stressing strand (as determined from strand-in-air tests) can be substantially reduced in post-tensioned concrete applications due to fretting fatigue of the tendon. Two reduced beam setups will be constructed to evaluate the potential for fatigue and fretting fatigue at deviation points in segmental bridges. The fatigue test will be carried out in accordance with section 960 of the FDOT Road and Bridge Specifications Manual, which recommends fatigue testing to be done following ETAG-013 Section 6.1.2-I. At the conclusion of testing, the strands and anchorages will be inspected for evidence of fatigue.

  • Proof Test for Lightweight Aluminum Bridge Deck
    Posted: March 11, 2016
    A concept for an aluminum bridge deck panel for use on moveable bridges was developed by the Florida Department of Transportation in consultation with AlumaBridge, SAPA and Hardesty & Hanover, LLC. The new deck system has the potential to replace 5” deep steel open grid deck systems and provide a better, quieter riding surface and lower maintenance costs. Prior to in-service use, the structural capacity and design is being verified by the Structures Research Center.

  • Pendulum Impact on a Commuter Bus
    Posted: July 23, 2012
    FDOT Research Project BDV30 943-05, Crashworthiness and Impact Analysis Laboratory. This was a pendulum impact study on a paratransit bus, conducted on 7/10/12. A 4,000 lb impact block was dropped reaching a speed of 30 mph before impact.