STRUCTURAL EFFICIENCY OF TRANSVERSE WEAKENED-PLANE JOINTS

TESTS WERE CONDUCTED TO DETERMINE THE ABILITY OF THE JOINTS OF THE WEAKENED-PLANE TYPE TO REDUCE CRITICAL LOAD STRESSES. INFORMATION WAS OBTAINED ON THE STRUCTURAL BEHAVIOR OF WEAKENED-PLANE JOINTS AS AFFECTED BY: (1) TYPE OF COARSE AGGREGATE, (2) MAXIMUM SIZE OF COARSE AGGREGATE, (3) PRESENCE OR ABSENCE OF DOWEL BARS, (4) METHOD OF PRODUCING FRACTURE AT THE JOINT, (5) COMPRESSIVE FORCES ACTING TO CLOSE THE JOINT, AND (6) WIDTH OF JOINT OPENING. THE DATA OBTAINED INDICATED THAT: (1) THE JOINTS WERE MORE EFFECTIVE IN CONTROLLING CRITICAL CORNER-LOAD STRESSES THAN THEY WERE IN CONTROLLING CRITICAL EDGE-LOAD STRESSES, (2) IN THE PRESENCE OF COMPRESSION BETWEEN THE JOINTS FACES, ALL OF THE JOINTS WERE EFFECTIVE IN REDUCING CRITICAL STRESSES AT BOTH THE EDGES AND THE CORNERS, (3) WITHOUT COMPRESSION BETWEEN THE JOINT FACES, AGGREGATE INTERLOCK IS AN UNCERTAIN MEANS OF STRESS CONTROL REGARDLESS OF TYPE AND SIZE OF COARSE AGGREGATE, (4) DOWELS IMPROVED THE CONTROL OF CRITICAL EDGE STRESSES TO A LIMITED EXTENT BUT AIDED THE CONTROL OF CORNER STRESSES, AND (5) DOWELS IMPROVED UNIFORMITY IN STRESS REDUCTION FROM POINT TO POINT ALONG THE JOINT EDGE. /AUTHOR/

Media Info

  • Media Type: Print
  • Features: Figures; Tables;
  • Pagination: pp 89-108
  • Monograph Title: Investigational concrete pavements progress reports of cooperative research projects on joint spacing
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00207408
  • Record Type: Publication
  • Files: TRIS, TRB
  • Created Date: May 29 1972 12:00AM