Distribution of Girder Loads in a Composite Highway Bridge

摘要

Background material on refined and simplified methods for the analysis of bridge superstructures was presented. Seven methods were briefly described: five refined methods and two simplified methods. Using the full-scale experimental specimen of Project 350, subjected to vertical loads at 4 points on the deck surface, the variation of bending moments along the length of center girder was determined, both before and after deck cracking. These experimentally determined girder moments were compared with the moments obtained from the AASHTO Specifications, from the Ontario Highway Bridge Design Code, and from a finite element model of the bridge.