CAJ | 학술논문

基于一外形复杂的高层建筑刚性模型表面压力测量风洞试验,对高层建筑立面上测点的最不利风压系数进行了研究,分析了局部外形特征对高层建筑立面上围护结构风荷载的影响.试验结果表明,最不利正风压系数不受建筑立面局部外形特征的影响,可以基于来流湍流特征用准定常理论近似预测.最不利负风压系数与尾流分离有关,受建筑局部外形特征的影响较大,平直立面上的小,弧形立面上的大.这些结论为高层建筑围护结构的设计提供了参考.
기우일외형복잡적고층건축강성모형표면압력측량풍동시험,대고층건축립면상측점적최불리풍압계수진행료연구,분석료국부외형특정대고층건축립면상위호결구풍하재적영향.시험결과표명,최불리정풍압계수불수건축립면국부외형특정적영향,가이기우래류단류특정용준정상이론근사예측.최불리부풍압계수여미류분리유관,수건축국부외형특정적영향교대,평직립면상적소,호형립면상적대.저사결론위고층건축위호결구적설계제공료삼고.
Based on the surface pressure measurement results in wind tunnel tests of the rigid model of a real high-rise building with complex shape,the most unfavorable pressure coefficients on measured taps were analyzed and the effects of the local shape of facades on the most unfavorable pressure coefficients were studied. The results show that the most unfavorable positive pressure coefficients are not affected by the local shape of facades and can be approximately estimated with the quasi-steady method. The most unfavorable negative pressure coefficients differ seriously as the local shape of facades changes and those on flat facade are small,while large on curved one. These conclusions provide the basis for cladding design of high-rise buildings.