Structural Behavior of a Skew Two Span Reinforced Concrete Box Girder Bridge Model. Volume II: Reduction, Analysis and Interpretation of Results

摘要

This is the second of a four volume sequence on the structural behavior of a skew two span four cell box girder bridge model as follows: Volume I - Design, Construction, Instrumentation and Loading; Volume II - Reduction, Analysis and Interpretation of Results; Volume III - Response during Ultimate Loading to Failure and Volume IV - Detailed Tables of Experimental and Analytical Results. In the present volume, a detailed presentation of the reduction, analysis and interpretation of the experimental and theoretical results obtained in testing a large scale 45 degree skew, two span, four cell, reinforced concrete box girder bridge model is given. The various computer programs used in obtaining theoretical results are described and compared. The methods and computer programs used for reduction of experimental data are also presented. Results, in terms of reactions, deflections, strains and moments, for the response of the bridge to dead load, working stress loads and at overload stress levels are given and comparisons between experimental and theoretical values are made. A review of the behavior under sustained dead load during the load history of the model is given with respect to strains, deflections and cracking. A comparison is made at all stages between the behavior of the skew bridge studied in this investigation, and of similar straight and curved bridges studied previously.