- 摘 要
-
（1 奧雅納工程顧問， 上海 200031； 2 Ove Arup & Partners International Limited, London B908AE）
［摘要］風荷載與風致加速度響應越來越成為高層建筑主體結構與圍護結構設計的主要控制性指標。工程技術人員能否選擇適合具體項目的風洞試驗單位，是否具備審核風洞試驗方法與試驗結果的能力越來越影響高層建筑抗風設計的安全性與經(jīng)濟性。首先指出了規(guī)范GB 50009—2012在實際工程應用中存在的不足，主要包括遠場地貌類別、陣風風速剖面、風速風向折減因子、圍護結構極值負壓與氣動阻尼比等參數(shù)，然后基于實際項目案例給出風洞試驗過程中出現(xiàn)的一些問題，例如測試技術與分析參數(shù)的選取、設備故障判斷與第三方獨立試驗，最后針對性的給出相關建議，可為相關技術人員進行風洞試驗管理與報告結果校核提供參考。
［關鍵詞］遠場地貌類別； 極值負壓； 風氣候分析； 風洞試驗
中圖分類號：TU973-14, TU973-32文獻標識碼：A文章編號：1002-848X(2018)18-0008-07
Analysis of problems and countermeasures in wind-resistant design of high-rise buildings
Zhang Zhengwei1, To Alex2, Andrew Allsop2
(1 ARUP, Shanghai 200031, China; 2 Ove Arup & Partners International Limited, London B908AE, UK)
Abstract:Wind load and wind-induced acceleration are the main control indicators for the main structure design and envelope design of high-rise buildings. Whether the engineering technicians can choose the wind tunnel labs suitably for specific projects and whether they have the ability to check the method of wind tunnel test and test results increasingly affects the safety and economy of the wind resistant design of high-rise buildings. Firstly the shortcomings of the load code GB 50009—2012 in practical engineering application were pointed out, mainly including the far field terrain roughness analysis, the gust wind velocity profile, the wind speed-direction reduction factor, the extreme negative pressure and the aerodynamic damping ratio. Then some problems during the wind tunnel test based on the actual projects were given, including the selection of test methods and analysis parameters, equipment faults judgment and third party independent wind tunnel test. Finally practical and effective suggestions were given to avoid the above problems. It can provide reference for the related technicians to check the wind tunnel test management and the report results.
Keywords:far field terrain roughness; peak negative pressure; wind climate analysis; wind tunnel test
作者簡介：張正維，博士，高級工程師，Email：zheng-wei.zhang@arup.com。
