重庆建筑
重慶建築
중경건축
CHONGQING ARCHITECTURE
2014年
12期
48-51
,共4页
风洞试验%高层结构%体型系数%风荷载
風洞試驗%高層結構%體型繫數%風荷載
풍동시험%고층결구%체형계수%풍하재
wind tunnel test%high-rise structure%shape coefficient%wind load
基于同步测压试验，对某超高层结构在考虑周边建筑与不考虑周边建筑两种遮挡条件进行风洞试验，研究其体型系数，并以此作为结构设计的参考。结果表明：无周边建筑时，风荷载分布符合钝体结构表面风荷载分布规律；有周边建筑时，结构表面局部体型系数正峰值与无周边建筑干扰时相比普遍略小；通过各层局部体型系数积分得到的整体体系系数比规范规定的略小。
基于同步測壓試驗，對某超高層結構在攷慮週邊建築與不攷慮週邊建築兩種遮擋條件進行風洞試驗，研究其體型繫數，併以此作為結構設計的參攷。結果錶明：無週邊建築時，風荷載分佈符閤鈍體結構錶麵風荷載分佈規律；有週邊建築時，結構錶麵跼部體型繫數正峰值與無週邊建築榦擾時相比普遍略小；通過各層跼部體型繫數積分得到的整體體繫繫數比規範規定的略小。
기우동보측압시험，대모초고층결구재고필주변건축여불고필주변건축량충차당조건진행풍동시험，연구기체형계수，병이차작위결구설계적삼고。결과표명：무주변건축시，풍하재분포부합둔체결구표면풍하재분포규률；유주변건축시，결구표면국부체형계수정봉치여무주변건축간우시상비보편략소；통과각층국부체형계수적분득도적정체체계계수비규범규정적략소。
Based on synchronous pressure measurement, the wind tunnel test of a super high-rise structure is done under the sheltering conditions with and without considering the surrounding buildings. The shape factors are studied for reference of structural design. The results show that wind load distri-bution accords with the distribution rule of wind load of bluff structural surface when there is no buildings surrounded;the peak value of shape factor is smaller without surrounding buildings;and the overall shape factor obtained through the particular shape factor of each layer is smaller than the one regu-lated.
