臨沂氣象雷達(dá)塔自振頻率調(diào)整與結(jié)構(gòu)分析
楊永哲，孟祥良，費(fèi)添慧，郭越洋
- 摘 要
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（天津大學(xué)建筑設(shè)計(jì)研究院， 天津 300073）
［摘要］山東臨沂氣象雷達(dá)塔是集科學(xué)研究與觀光為一體的高聳結(jié)構(gòu)，采用框架核心筒結(jié)構(gòu)。由于氣象雷達(dá)塔的特殊性，對(duì)結(jié)構(gòu)自振頻率要求較高。通過(guò)增加外剪力墻厚度、改變外剪力墻變截面的位置、布置斜撐和增設(shè)剪力墻翼緣等措施，對(duì)提高結(jié)構(gòu)自振頻率進(jìn)行了計(jì)算分析，并對(duì)結(jié)構(gòu)進(jìn)行反應(yīng)譜分析和彈性時(shí)程分析。提出的關(guān)于氣象雷達(dá)塔自振頻率的調(diào)整方法以及設(shè)計(jì)方法可為其他類似結(jié)構(gòu)設(shè)計(jì)提供參考。［關(guān)鍵詞］氣象雷達(dá)塔; 高聳結(jié)構(gòu); 自振頻率; 模態(tài)分析; 彈性時(shí)程分析中圖分類號(hào)：TU973.2 文獻(xiàn)標(biāo)識(shí)碼：A 文章編號(hào)：1002-848X(2015)16-0087-04
Vibration frequency adjustment and structural analysis of Linyi meteorological radar towerYang Yongzhe, Meng Xiangliang, Fei Tianhui, Guo Yueyang(Architectural Design and Research Institute of Tianjin University, Tianjin 300073, China)Abstract: Linyi meteorological radar tower in Shandong province is a tall and slender structure with frame-corewall system, which contains scientific research and sightseeing functions. Because of the particularity of meteorological radar tower, the natural frequency requirement of the structure is strict. Some methods were introduced to improve the natural frequency, such as increasing exterior shear wall thickness, changing setting position of variable cross-section of exterior shear wall, adding diagonal braces and adding shear wall flanges. The response spectrum analysis and elastic time-history analysis of the structure were carried out as well. The adjustment method of natural frequency and design method of the meteorological radar tower can provide reference for other similar structural designs.Keywords: meteorological radar tower; tall and slender structure; vibration frequency; mode analysis; elastic time-history analysis
作者簡(jiǎn)介：楊永哲，高級(jí)工程師，一級(jí)注冊(cè)結(jié)構(gòu)工程師，Email: yyzyang01@sina.com。
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