Aneffectiveinversemethodwasdevelopedtoestimateacross-windloadsappliedonastructurebyusing wind-induced responses.The Kalman filter and proper orthogonal decomposition (POD)technique were utilized for the inverse identification based on limited measured responses.The across-wind loads acting on a square shaped super tall building were estimated and compared with those determined by a wind tunnel test.The feasibility and accuracy of the method were examined.The results show that the time history and power spectra of across-wind loads obtained in the present research match well with the results of wind tunnel test.The accuracy of the estimated wind loads at different noise levels is acceptable in engineering practice.The presented results are valuable and referential to the design of super-tall buildings under wind storm or typhoon actions.%提出利用风致响应识别结构横风向风荷载的反分析方法。基于卡尔曼滤波理论及正交分解技术（POD），利用有限测试楼层的风致响应识别结构动态风荷载。结合工程实例，对方形超高层建筑进行风荷载反演分析，并与风洞试验结果对比研究，验证该方法的适用性及准确性。结果表明，估计的风荷载时程及功率谱与试验结果符合较好，多种噪声水平下反演结果基本满足实际工程需要。可为超高层建筑抗风设计及相关研究提供依据。
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