介绍了上海世茂北外滩商务楼中庭钢结构大跨点支玻璃幕墙及采光顶的风洞试验概况和结果,给出了玻璃幕墙的玻璃及支承体系抗风设计的风压确定方法,研究了幕墙及采光顶在考虑塔楼群体结构效应情况下的风压分布特征。利用风洞试验每个测点的风压时程信号,采用Newmark积分方法计算了幕墙及采光顶的风振时程响应,并以此为基础计算了风振系数。 The general situation and result of wind tunnel test of large-span point glass curtain wall and daylighting roof of steel structure in atrium of Shanghai Shimao North Bund Commercial Building are introduced. The wind pressure determination method for wind-resistant design of glass curtain wall and its supporting system is given. And the top of the lighting roof in the tower structure under the effect of considering the wind pressure distribution characteristics. Based on the wind pressure time-history signal of each measuring point in wind tunnel test, the wind-induced time-history response of the curtain wall and the lighting roof is calculated by the Newmark integral method, and the wind-induced vibration coefficient is calculated.