EXPERIMENTAL STUDY OF THE NEIGHBORHOOD EFFECTS ON THE MEAN WIND LOADING OVER TWO EQUIVALENT HIGH‐RISE BUILDINGS

Authors

  • GREGORIO SANDRO VIEIRA UNIVERSIDADE FEDERAL DE UBERLÂNDIA, FACULDADE DE ENGENHARIA CIVIL, UBERLÂNDIA, MG, BRASIL
  • JOSÉ LUIS VITAL DE BRITO UNIVERSIDADE DE BRASÍLIA, PROGRAMA DE PÓS‐GRADUAÇÃO EM ESTRUTURAS E CONSTRUÇÃO CIVIL, BRASÍLIA, DF, BRASIL
  • ACIR MÉRCIO LOREDO-SOUZA UNIVERSIDADE FEDERAL DO RIO GRANDE DO SUL, LABORATÓRIO DE AERODINÂMICA DAS CONSTRUÇÕES, PORTO ALEGRE, RS, BRASIL

Abstract

THIS PAPER PRESENTS A SERIES OF RESULTS WITH RESPECT TO THE SHEAR STRESSES IN THE BASE, TIPPING MOMENT AND TORSION ACTING IN A BUILDING OBTAINED THROUGH AN EXPERIMENTAL WIND TUNNEL STUDY USING THE STANDARD BUILDING PROPOSED BY THE COMMONWEALTH ADVISORY AERONAUTICAL RESEARCH CONCIL (CAARC) AS BUILDING REFERENCE. IN THE EFFORTS DETERMINATION, THE INTERFERENCE OF A NEIGHBORING BUILDING WITH SIMILAR GEOMETRIC CHARACTERISTICS TO THE CAARC WAS SIMULATED, CONSIDERING VARIATIONS OF POSITIONING AND SPACING IN RELATION TO THE REFERENCE BUILDING. IT WAS CONCLUDED THAT THE PRESENCE OF THE NEIGHBORING BUILDING INCREASED THE VALUES OF THE EFFORTS IN THE REFERENCE BUILDING IN A SIGNIFICANT NUMBER OF DIRECTIONS CONSIDERED. IN THE CASE OF THE CONSIDERED DEVIATIONS AND THE PROPOSED PROVISIONS BY THIS STUDY, IT WAS CONCLUDED THAT THE NEIGHBORHOOD FACTOR THAT WOULD CONTEMPLATE THE MAJORITY OF THE RESULTS OBTAINED IN THE TESTS SHOULD INCREASE THE EFFORTS DUE TO THE WIND ACTION BY AT LEAST 60% IN RELATION TO THE VALUES OBTAINED FOR THE REFERENCE BUILDING CONSID-ERED ISOLATED.

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Published

2018-02-02

Issue

Vol. 15 No. 3 (2018)

Section

Articles

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