以台北 101 大楼为研究对象，应用一种新的湍流脉动流场产生方法( DSRFG) 模拟了台北 101 大厦周围风 场的湍流入口边界条件，采用分离涡方法对该建筑进行数值风洞模拟。根据大厦外形特征，建立了几何模型，用于大厦风荷载的数值模拟; 基于大厦振动监测系统得到的结构模态、自振频率等数据，建立了大厦的结构模型，用于气弹响应分析。 将计算结果与现场实测以及风洞测力试验的相应数据进行了对比，以验证数值风洞的有效性。对是否考虑流固耦合的大 厦数值模型的等效风荷载及风致响应进行对比分析，并探讨了流固耦合效应对大厦周围风流场的影响。对该对象的研究 结果表明，在顺风向上，建筑物的风致响应不易受流固耦合效应影响，而在横风向上，考虑了双向流固耦合的有限元模型， 其等效静风荷载及加速度与位移响应均小于未考虑流固耦合的有限元模型。在流场上，流固耦合效应减小了建筑两侧的 涡量，但会产生较大的脱落涡旋，可能会对下游建筑风环境造成不利影响。

Here, taking Taipei 101 Building as the study object, a new turbulent fluctuating flow field generation method named the discretizing and synthesizing random flow generator (DSRFG) was proposed to simulate turbulent inlet boundary conditions of the wind field around Taipei 101 building, and the detached eddy simulation (DES) was used to do numerical wind tunnel tests for the building. According to shape characteristics of the building, a geometric model was established for numerical simulation of wind load of the building. Based on the data of structural modes and natural frequencies obtained using the vibration monitoring system of the building, the structural model of the building was established for aeroelastic response analysis. The calculation results were compared with the corresponding data of field measurement and wind tunnel force tests to verify the effectiveness of the numerical wind tunnel. The equivalent wind load and wind-induced response of the building's numerical model with and without fluid-structure interaction were contrastively analyzed, and influences of fluid-structure interaction effect on the wind flow field around the building were explored. The study results showed that in the downwind direction, the wind-induced response of the building is not easily affected by fluid-structure interaction effect, while in the cross wind direction, the equivalent static wind load, acceleration and displacement responses of the finite element model considering bi-directional fluid-structure interaction are smaller than those of the finite element model without considering fluid-structure interaction; in wind flow field, the fluid-structure interaction effect reduces the vorticity on both sides of the building, but it can produce larger shedding vortex which may cause adverse effects on wind environment of downstream buildings.