AN ANALYTICAL STUDY OF EIGHT DIFFERENT TYPES OF HIGHWAY BRIDGE STRUCTURES. STUDY OF EFFECT OF NEW VEHICLE WEIGHT LAW ON STRUCTURES

THE EFFECTS OF HEAVY TRUCK LOADS ON BRIDGE STRUCTURES ARE STUDIED BY AN ANALYTICAL STUDY OF THE STRESSES AND DEFLECTIONS DUE TO HEAVY TRUCKS FOR VARIOUS BRIDGE STRUCTURES. A BRIEF DESCRIPTION IS GIVEN OF THE ANALYTICAL METHODS USED IN THE STRUCTURAL ANALYSIS. THE LIVE LOAD STRESSES, EVALUATED UNDER THE CONSIDERATION OF AASHO CODE AND THEORY, UTILIZED A SINGLE BPR TEST TRUCK AS A LOADING. THE COMBINED STRESSES, LISTED BY THEORY AND CODE IN A TABLE, ARE LOW COMPARED TO THE ALLOWABLE MATERIAL PROPERTIES. EXAMINATION OF THOSE BRIDGES DETAILED IN THIS REPORT, SUBJECT TO THE BPR TEST TRUCK AND ACCORDING TO THEORY, INDICATES THERE IS AN ADEQUATE MARGIN OF SAFETY OF OVERSTRESSING FOR THESE STRUCTURES. THE FINAL ANSWER TO THE QUESTION OF THE EFFECTS OF EXCESS AXLE LOADS WILL BE ANSWERED COMPLETELY UPON COMPLETION OF THE BRIDGE TESTING AND STATISTICAL ANALYSIS.

• Supplemental Notes:
  • Progress RePT, 293 PP, 176 FIG, 12 TAB, 2 APP
• Corporate Authors:

  University of Maryland, College Park

  Department of Civil and Environmental Engineering
  College Park, MD  United States  20742
• Authors:
  • Heins, C P
  • Looney, C T
• Publication Date: 1966-9

Subject/Index Terms

• TRT Terms: Axle load force; Bridges; Deflection tests; Loads; Structural analysis; Theory; Trucks
• Subject Areas: Bridges and other structures; Highways; Motor Carriers;

Filing Info

• Accession Number: 00208335
• Record Type: Publication
• Files: TRIS
• Created Date: Aug 30 1994 12:00AM