WIND-LOAD DESIGN BASED ON STATISTICS

SHORTCOMINGS OF SOME OF THE WIND-LOAD DESIGN PROCEDURES CURRENTLY ADVOCATED ARE POINTED OUT. THESE INCLUDE THE INEFFICIENT USE OF INFORMATION AVAILABLE FROM WIND RECORDS. IN THE MODEL PROPOSED, ANNUAL RECORDS OF DIRECTIONAL WIND VELOCITY ARE TAKEN AS INDEPENDENT, IDENTICALLY DISTRIBUTED SAMPLES OF A NON-STATIONARY GAUSSIAN STOCHASTIC PROCESS WITH NEGLIGIBLE MEAN. ASSUMING THAT THE STRUCTURE RESPONSE CAN BE REPRESENTED BY A SECOND-ORDER DIFFERENTIAL EQUATION WITH CONSTANT COEFFICIENTS, A SIMPLE PROCEDURE FOR COMPUTING AN EQUIVALENT QUASI-STATIC DESIGN WIND IS OUTLINED. THE DESIGN WIND IS A FUNCTION OF THE WIND AND STRUCTURE CHARACTERISTICS, AS WELL AS OF THE USEFUL LIFE OF THE STRUCTURE, AND THE ACCEPTABLE RISK OF THE DESIGN STRESS BEING EXCEEDED DURING THE USEFUL LIFE OF THE STRUCTURE (A).

Media Info

  • Features: Figures; References; Tables;
  • Pagination: p. 69-82
  • Serial:
    • Volume: 51

Subject/Index Terms

Filing Info

  • Accession Number: 00210057
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Files: TRIS
  • Created Date: May 15 1974 12:00AM