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  Title

  Load and resistance factor rating (LRFR) in NYS : final report

  Author

  Ghosn, Michel.  

  Publisher:

  Department of Civil Engineering, City College of New York, City University of New York,

  Pub date:

  [2011]

  Pages:

  2 volumes (various pagings) :

  Item info:

  2 copies available at New York State Library.
  

  • 
  • Holdings			Change Display
    New York State Library
    	Copy	Material	Location
    TRA 470-4 LOARF 213-1498	1	BOOK-Q	D-NYS-DOC (nocirc)
    	2	BOOK-Q	D-NYS-DOC

• MARC Record

  Load and resistance factor rating (LRFR) in NYS : final report
  Ghosn, Michel.
  

  Control number:

  ocn861986319

  Local control number:

  (OCoLC)861986319

  Gov. Doc. Call #:

  TRA 470-4 LOARF 213-1498

  Author:

  Ghosn, Michel.

  Title:

  Load and resistance factor rating (LRFR) in NYS : final report / by Michel Ghosn, Bala Sivakumar, Feng Miao.

  Publication info:

  New York, New York : Department of Civil Engineering, City College of New York, City University of New York, [2011]

  Physical description:

  2 volumes (various pagings) : ill. ; 28 cm

  Content Type:

  text

  Note:

  "Project no. C-06-13."

  Note:

  "September 2011."

  Note:

  "Sponsoring agency ... NYS Department of Transportation"--Page ii.

  Note:

  Includes bibliographical references.

  Abstract:

  "This report develops a Load and Resistance Factor Rating (NYS-LRFR) methodology for New York bridges. The methodology is applicable for the rating of existing bridges, the posting of under-strength bridges, and checking Permit trucks. The proposed LRFR methodology is calibrated to provide uniform reliability index values for all applications. The reliability calibration of live load factors is based on live load models developed using Truck Weigh-In-Motion (WIM) data collected from several representative New York sites. The live load models provide statistical projections of the maximum live load effects expected on New York bridges. A new set of NYS Legal Trucks along with appropriate live load factors are proposed for performing Operating Level Ratings of existing bridges. Permit load factors are calibrated for unlimited crossings of divisible loads as well as single crossings and unlimited crossings of non-divisible loads. An equation is proposed for determining Posting weight limits for bridges with low Rating Factors as a function of the effective span length. It is proposed that different posting weights be imposed for single unit trucks and semi-trailer trucks."--Page ii.

  Abstract:

  Volume II contains the appendices for the final report. Appendix I provides the proposed NYS-LRFR Guidelines for load rating and load posting of New York State bridges. The proposed guidelines are the result of the calibration of the live load factors and load posting procedures calibrated using reliability methods as described in Volume I. Appendix II provides a review of current NYSDOT procedures for load rating, load posting and permit load checking. Appendix III provides an overview of current national practice related to the load rating, load posting, and permit load checking of highway bridges. Appendix IV presents a comparison between the ratings obtained using the proposed procedures to those from the current NYSDOT method for a representative sample of New York bridges.

  Other formats:

  Also available in electronic format.

  Held by:

  NYSL

  Subject:

  Bridges--New York (State)--Design and construction.

  Subject:

  Load factor design.

  Added entry:

  Sivakumar, Bala.

  Added entry:

  Miao, Feng.

  Added entry:

  City University of New York. City College. Department of Civil Engineering.

  Added entry:

  New York (State). Department of Transportation.

  Electronic access:

  https://purl.nysed.gov/nysl/861986319