This study aims to estimate the wind loads acting on a tower structure by comparing and reviewing design codes and the results of wind tunnel tests. To this end, the modal properties of the tower were identified through short-term on-site measurements of the Busan Tower in Korea. The wind load acting on the tower was calculated using four design codes: KBC2009 (Korea), ASCE7-10 (USA), EUROCODE (Europe), and AIJ2004 (Japan). Additionally, force measurement tests and aeroelastic model tests were conducted for comparison. The results obtained indicated that the design wind velocity of each design code differed slightly, reflecting the individual characteristics of each country. The base shear force, base moment, and maximum displacement obtained from each design code were similar to those obtained in the wind tunnel tests. The magnitudes of the base moments and maximum displacements calculated by each design code were in the order of KBC > AIJ ≈ EUROCODE > ASCE7. The overall results indicate that each design code reasonably estimates the wind forces and the responses of the tower and also has an appropriate safety margin. The scatter in the predicted wind loads occurs primarily from the variations in the design wind velocity in the respective design codes.

中文翻译：

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风洞试验与设计规范对塔架顺风效应评估的比较研究

本研究旨在通过比较和审查设计规范以及风洞测试的结果来估计作用在塔架结构上的风荷载。为此，通过对韩国釜山塔的短期现场测量，确定了塔的模态特性。使用四个设计规范计算作用在塔上的风荷载：KBC2009（韩国），ASCE7-10（美国），EUROCODE（欧洲）和AIJ2004（日本）。此外，还进行了力测量测试和气动弹性模型测试以进行比较。得到的结果表明，每个设计规范的设计风速略有不同，反映了每个国家的个性。从每个设计规范获得的基础剪力，基础弯矩和最大位移与在风洞试验中获得的相似。每个设计规范计算出的基本力矩和最大位移的大小顺序为KBC> AIJ≈EUROCODE> ASCE7。总体结果表明，每个设计规范都合理地估算了风力和塔架的响应，并具有适当的安全裕度。预测风荷载中的分散主要是由于各个设计规范中设计风速的变化引起的。