Effects of a construction tower crane on the wind loading of a high-rise building / T. G. Mara in Journal of structural engineering, Vol. 136 N° 11 (Novembre 2010)  

Public ISBD [article]  inJournal of structural engineering > Vol. 136 N° 11 (Novembre 2010) . - pp. 1453-1460 Titre : Effects of a construction tower crane on the wind loading of a high-rise building Type de document : texte imprimé Auteurs : T. G. Mara, Auteur Année de publication : 2011 Article en page(s) : pp. 1453-1460 Note générale : Génie Civil Langues : Anglais (eng) Mots-clés : Aerodynamics High-rise buildings Wind loads Cranes tunnels Construction sites Index. décimale : 624 Constructions du génie civil et du bâtiment. Infrastructures. Ouvrages en terres. Fondations. Tunnels. Ponts et charpentes Résumé : High-rise construction projects commonly use a tower crane attached to the building by braced connections along its height. The presence of the tower crane modifies the aerodynamic cross section of the building and can alter the expected wind loading characteristics. Wind tunnel tests were carried out to examine the impact of the solidity ratio, and location of the tower crane, on the wind loading for the overall building-crane system. Tower cranes of two solidity ratios, 20 and 100%, were tested. A tower crane having one of the two solidity ratios tested was placed at one of three locations along the building face in order to define a quantitative range of increased wind loads. Increases in mean and fluctuating loading were observed for particular wind directions, and were more pronounced for the greater solidity ratio. The increase was the most significant for the torsion base moment. The impact of the tower crane was reduced as its location neared the center of the building face. Recommendations are made for the choice of tower crane location. DEWEY : 624.17 ISSN : 0733-9445 En ligne : http://ascelibrary.org/sto/resource/1/jsendh/v136/i11/p1453_s1?isAuthorized=no [article] Effects of a construction tower crane on the wind loading of a high-rise building [texte imprimé] / T. G. Mara, Auteur . - 2011 . - pp. 1453-1460. Génie Civil Langues : Anglais (eng) in Journal of structural engineering > Vol. 136 N° 11 (Novembre 2010) . - pp. 1453-1460 Mots-clés : Aerodynamics High-rise buildings Wind loads Cranes tunnels Construction sites Index. décimale : 624 Constructions du génie civil et du bâtiment. Infrastructures. Ouvrages en terres. Fondations. Tunnels. Ponts et charpentes Résumé : High-rise construction projects commonly use a tower crane attached to the building by braced connections along its height. The presence of the tower crane modifies the aerodynamic cross section of the building and can alter the expected wind loading characteristics. Wind tunnel tests were carried out to examine the impact of the solidity ratio, and location of the tower crane, on the wind loading for the overall building-crane system. Tower cranes of two solidity ratios, 20 and 100%, were tested. A tower crane having one of the two solidity ratios tested was placed at one of three locations along the building face in order to define a quantitative range of increased wind loads. Increases in mean and fluctuating loading were observed for particular wind directions, and were more pronounced for the greater solidity ratio. The increase was the most significant for the torsion base moment. The impact of the tower crane was reduced as its location neared the center of the building face. Recommendations are made for the choice of tower crane location. DEWEY : 624.17 ISSN : 0733-9445 En ligne : http://ascelibrary.org/sto/resource/1/jsendh/v136/i11/p1453_s1?isAuthorized=no

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