Toward an LRFD-Based AASHTO Bridge Specification

by John M. Kulicki, Modjeski & Masters, United States,
Dennis R. Mertz, Modjeski & Masters, United States,

Document Type: Proceeding Paper

Part of: Structural Design, Analysis and Testing


During the 1987 AASHTO Bridge Committee Meeting, recommendations from NCHRP Project 20-7/31 regarding the development of a probability-based LRFD bridge specification were accepted. NCHRP Project 12-33 was initiated to actually develop the specification and a suitable commentary. Project 12-33 was officially started in July of 1988. Since that time, a core-group of design professionals from the Principal Investigator's staff and a group known as the Code Coordinating Committee have been defining the basic philosophy, content and organization of the specification through the development of a 'strawman' document. This paper presents an overview of the preliminary content of the proposed specification and provides a general update on status.

Subject Headings: Load and resistance factor design | Bridges | Bridge design | Highway and road design | Highway bridges | Architect/Engineers | Standards and codes | Professional practice

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