DEVELOPMENT OF A GENERALLY VALID METHOD OF CALCULATING CRACK WIDTHS FROM APPLIED STRESS, BASED ON THEORETICAL KNOWLEDGE AND THE RESULTS OF TESTS

ABLEITUNG EINES ALLGEMEINGUELTIGEN BERECHNUNGSVERFAHRENS FUER RISSBREITEN AUS LASTBEANSPRUCHUNG AUF DER GRUNDLAGE VON THEORETISCHEN ERKENNTNISSEN UND VERSUCHSERGEBNISSEN

THE EXISTING CHECK PROCEDURE FOR RESTRICTING CRACKING IN DIN 1045 LEADS IN A LARGE NUMBER OF CASES TO RESTRICTIONS IN CONSTRUCTION PRACTICE. THESE RESTRICTIONS ARE BROUGHT ABOUT BY THE TYPE OF CHECK AND NOT BY SAFETY REQUIREMENTS. OTHER CHECKING PROCEDURES - FOR EXAMPLE CEB PROPOSALS, BRITISH STANDARD, AMERICAN DESIGN PROPOSALS ETC - ALSO BRING ABOUT SIMILAR RESTRICTIONS IN USE. THE BASIC FACTORS WHICH DETERMINE CRACKING ARE WELL-KNOWN. THERE IS A NEED TO DRAW UP A FORMULA FOR CHECKING CRACK WIDTHS IN SUCH A WAY THAT ENGINEERING INFORMATION FOR ALL FIELDS OF APPLICATION IS RELIABLY DETERMINED. AFTER A GENERALLY VALID FORMULA HAS BEEN DEVELOPED A SIMPLER DESIGN PROPOSAL CAN BE DERIVED FROM THIS.

Language

• German

Project

• Status: Active
• Contract Numbers:

  ITRD 15.077 R 78 H

• Sponsor Organizations:

  BUNDESMINISTER FUER VERKEHR (FEDERAL MINISTER OF TRANSPORT)

  POSTFACH 20 01 00
  BONN,   DEUTSCHLAND BR  D-5300
• Project Managers:

  -, 

• Performing Organizations:

  INSTITUT FUER BETONSTAHL UND STAHLBETON E.V. (INSTITUTE FOR CONCRETE STEEL AND REINFORCED CONCRETE)

  LANDSBERGER STR. 414
  MUENCHEN,   DEUTSCHLAND BR  D-8000
• Start Date: 19780000
• Expected Completion Date: 19790000
• Actual Completion Date: 0
• Source Data: ITRD D701836

Subject/Index Terms

• TRT Terms: Bibliographies; Cracking; Design; Evaluation; Loads; Reinforced concrete; Reinforcing materials; Research projects; Tests; Theory
• ITRD Terms: 8518: Bibliography; 5211: Cracking; 9011: Design (overall design); 9020: Evaluation (assessment); 5567: Load; 4794: Reinforced concrete; 3471: Reinforcement (in mater); 8557: Research project; 6255: Test; 9078: Theory
• Subject Areas: Design; I24: Design of Bridges and Retaining Walls;

Filing Info

• Accession Number: 01294463
• Record Type: Research project
• Source Agency: Bundesanstalt für Straßenwesen (BASt)
• Contract Numbers: ITRD 15.077 R 78 H
• Files: ITRD
• Created Date: Nov 21 2010 4:35AM