不同风场下高层建筑风效应的风洞试验研究的中期报告摘要：本实验以某高层建筑为对象，选取3种不同的风场场景（近地面强迫流、近地面自然风、低风速均匀风场），进行风洞试验，研究不同风场场景下高层建筑的风效应。首先，使用风洞测试设备测量了风场的参数。然后，测量了模型表面的静压力和动压力，并利用这些数据计算出风反力系数和峰值因数。最后，根据实验结果进行分析和讨论。实验结果表明，在近地面强迫流中，高层建筑的风反力系数和峰值因数均较大，相比之下，近地面自然风和低风速均匀风场中的风反力系数和峰值因数则较小。另外，高层建筑的风效应主要集中在顶部和侧面，而底部的风效应较弱。这表明在高层建筑设计中，应该注重对于建筑顶部和侧面的加固设计。关键词：风洞试验，高层建筑，风反力系数，峰值因数，风效应Abstract:Thisexperimenttakesahigh-risebuildingastheobject,selectsthreedifferentwindfieldscenarios(near-surfaceforcedflow,near-surfacenaturalwind,low-speeduniformwindfield)forwindtunneltestingtostudythewindeffectsofhigh-risebuildingsunderdifferentwindfieldscenarios.Firstly,theparametersofthewindfieldweremeasuredusingthewindtunneltestingequipment.Then,thestaticpressureanddynamicpressureonthemodelsurfaceweremeasured,andthewindforcecoefficientandpeakfactorwerecalculatedfromthisdata.Finally,theexperimentalresultswereanalyzedanddiscussed.Theexperimentalresultsshowthatinnear-surfaceforcedflow,thewindforcecoefficientandpeakfactorofthehigh-risebuildingarelarge,whileinnear-surfacenaturalwindandlow-speeduniformwindfields,thewindforcecoefficientandpeakfactoraresmaller.Inaddition,thewindeffectsofhigh-risebuildingsaremainlyconcentratedonthetopandsides,whilethewindeffectsatthebottomareweaker.Thisindicatesthatinthedesignofhigh-risebuildings,attentionshouldbepaidtothereinforcementdesignofthetopandsidesofthebuilding.Keywords:windtunneltest,high-risebuilding,windforcecoefficient,peakfactor,windeffect.