Zureick, Abdul-Hamid

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Now showing 1 - 10 of 13
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    Condition assessment of existing bridge structures
    (Georgia Institute of Technology, 2009-08-01) Ellingwood, Bruce R. ; Zureick, Abdul-Hamid ; Wang, Naiyu ; O’Malley, Curtis
    Condition assessment and safety verification of existing bridges and decisions as to whether posting is required currently are addressed through analysis, load testing, or a combination of these methods. Structural analysis-based rating is by far the most common method for rating existing bridges. Load testing may be indicated when the analysis produces an unsatisfactory result or cannot be completed due to a lack of design documentation, information, or the presence of deterioration. The current rating process is described in the American Association of State Highway and Transportation Officials (AASHTO) Manual for Bridge Evaluation (MBE), First Edition (2008). This recently published Manual permits ratings to be determined through either allowable stress (ASR) or load factor (LFR) methods (Section 6B), or the load and resistance factor (LRFR) method (Section 6A). The LRFR method is keyed to the AASHTO LRFD Bridge Design Specifications, Fourth Edition (2007) which has been required for the design of new bridges since October, 2007. The State of Georgia currently utilizes the LFR method, which was permitted under the Manual for Condition Evaluation of Bridges, Second Edition. These three rating methods which continue to be commonly used – ASR, LRF, LRFR - may lead to different rated capacities and posted limits for the same bridge, a situation that has serious implications with regard to public safety and the economic well-being of communities that may be affected by bridge postings or closures. To address this issue, the Georgia Institute of Technology has conducted a research program, sponsored by the Georgia Department of Transportation, to develop improvements to the process by which the condition of existing bridge structures in the State of Georgia is assessed. The product of this research program is the Recommended Guidelines for Condition Assessment and Evaluation of Existing Bridges in Georgia. These guidelines address condition assessment and capacity evaluation by analysis, load test, or a combination of the two methods, depending on the circumstances and preferences of the GDOT. Part I of this report summarizes the technical approach taken to develop the Recommended Guidelines. Part II presents the Recommended Guidelines. An Appendix to Part II illustrates their use in typical rating situations.
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    Stainless structural shapes: design guideline development and ...
    (Georgia Institute of Technology, 2009-06-18) Zureick, Abdul-Hamid
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    Testing of Freeport Steel and Framing steel trusses
    (Georgia Institute of Technology, 2006-08) Zureick, Abdul-Hamid
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    Comprehensive evaluation of candidate guardrail delineation systems
    (Georgia Institute of Technology, 2004-04) Amekudzi-Kennedy, Adjo A. ; Zureick, Abdul-Hamid ; Folds, D.
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    Evaluation of Shear Capacity of Curved Steel Bridges I Girders
    (Georgia Institute of Technology, 2004-03-24) Zureick, Abdul-Hamid
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    Flexural and shear stiffness coefficients of the SEATIMBER
    (Georgia Institute of Technology, 2004) Zureick, Abdul-Hamid ; Kim, Yeonsoo S.
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    Structure Repairs Using Carbon Fiber Composites
    (Georgia Institute of Technology, 2002-02) Zureick, Abdul-Hamid ; Kahn, Lawrence F. ; Kim, Yeonsoo S.
    This report examines the performance of reinforced concrete bridge deck slabs externally strengthened using carbon fiber reinforced polymer (CFRP) composite plates shop-manufactured by the pultrusion process. Eleven full-scale reinforced concrete bridge deck specimens were constructed with 3,640 psi and 3,840 psi concrete and were reinforced with number 5 steel reinforcing bars near the top and bottom surface. Five specimens were subjected to two loading cycles. In the first cycle, the specimens were loaded until significant cracks were developed and the tensile reinforcing steel yielded. The specimens were then strengthened with carbon FRP composite plates. The second loading cycle was applied until failure of the deck specimens occurred. Six specimens were strengthened before cracking and then loaded to failure. The average ultimate strength increased by 30% after rehabilitation or strengthening. This increase was attained after allowing the epoxy adhesive to cure at least 10 days.
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    Acceptance test specifications and guidelines for fiber-reinforced polymeric bridge decks
    (Georgia Institute of Technology, 2002) Zureick, Abdul-Hamid
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    The Flexural Strength of Recycled Plastic Beam
    (Georgia Institute of Technology, 2001-12-05) Zureick, Abdul-Hamid
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    Composite Railroad Crosstie Development Program
    (Georgia Institute of Technology, 2001-11-07) Zureick, Abdul-Hamid