STRIPPING TESTS ON HOT-DIP GALVANISED AND BLACK HIGH-STRENGTH SCREWS

ABWUERGVERSUCHE AN FEUERVERZINKTEN UND SCHWARZEN HV-SCHRAUBEN

THE TEST PROGRAMME PROVIDED FOR SHEARING TESTS FOR ALL HV SCREWS TO DIN 6914 HAVING THE DIMENSIONS USED IN STEEL CONSTRUCTION. IN ADDITION, THE DIAMETER HAD TO BE VARIED FROM HV M12 TO HV M30 AND THE SCREW LENGTH FROM 40 TO 240 MM. IN ORDER TO FIND THE BEST LUBRICATION THE EFFECT OF A NUMBER OF LUBRICANTS WAS EXAMINED. TEST TECHNIQUE AND RESULTS ARE GIVEN. THE RESULTS COULD BE CONSIDERED DIRECTLY WITH THE NEWLY REVISED HV GUIDELINES (DAST GUIDELINE 010). THE NUMERICAL VALUES OF THE FINAL REPORT ARE ALREADY INCLUDED IN THESE GUIDELINES. IN ADDITION TO THE TIGHTENING METHODS, TORQUE METHOD AND ANGULAR MOMENT METHOD PREVIOUSLY ALLOWED, THE ANGLE OF ROTATION METHOD COULD BE USED. THE HOT GALVANIZED HV SCREW HAS IN ADDITION BEEN SHOWN TO BE EQUIVALENT UNDER CERTAIN CONDITIONS. THE EXTENSION WITH REGARD TO TIGHTENING METHODS AND THE INTRODUCTION OF HOT GALVANIZED HV SCREWS PRESENT GREATER OPPORTUNITIES AND ECONOMIC ADVANTAGES FOR STEEL CONSTRUCTION (SEE ALSO IDS NO. 700778).

    Language

    • German

    Project

    • Status: Completed
    • Contract Numbers:

      ITRD 4.2.12/II

      ITRD 2820

    • Sponsor Organizations:

      ARBEITSGEMEINSCHAFT INDUSTRIELLER FORSCHUNGSVEREINIGUNGEN E. V. (WORKING COMMITTEE OF INDUSTRIAL RESEARCH ASSOCIATIONS)

      BAYENTHALGUERTEL 23
      KOELN,   Germany  D-5000

      DEUTSCHER AUSSCHUSS FUER STAHLBAU (GERMAN STEEL WORKS COMMITTEE)

      EBERTPLATZ 1
      KOELN,   Deutschland  D-5000
    • Project Managers:

      VALTINAT, G

      STEINHARDT, O

    • Performing Organizations:

      KARLSRUHE UNIV. (TH), VERSUCHSANSTALT FUER STAHL, HOLZ UND STEINE (KARLSRUHE TECHNICAL UNIV., TESTING INST. FOR STEEL, WOOD AND STONES)

      KAISERSTR. 12
      KARLSRUHE,   Germany  D-7500
    • Start Date: 19730000
    • Expected Completion Date: 0
    • Actual Completion Date: 19730000
    • Source Data: ITRD D701213

    Subject/Index Terms

    Filing Info

    • Accession Number: 01304425
    • Record Type: Research project
    • Source Agency: Bundesanstalt für Straßenwesen (BASt)
    • Contract Numbers: ITRD 4.2.12/II, ITRD 2820
    • Files: ITRD
    • Created Date: Nov 21 2010 9:55AM