- 摘 要
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(1 四川省建筑科學(xué)研究院有限公司， 成都 610081； 2 中國建筑第八工程局有限公司， 上海 200135；3 西南交通大學(xué)， 成都 610031)
［摘要］為研究玻璃幕墻邊界松弛后玻璃面板振動特性，對兩個(gè)足尺橫隱框豎明框玻璃幕墻試件進(jìn)行振動法測試試驗(yàn)，考察實(shí)際工程中邊界條件和邊界松弛條件下幕墻面板單元的的振動特性，對雙層彈性薄板的解析解進(jìn)行分析。研究結(jié)果表明：雙層鋼化玻璃面板的振動過程是內(nèi)外片玻璃協(xié)同工作相互耦合的過程；當(dāng)不對幕墻進(jìn)行激勵時(shí)，實(shí)測第一階自振頻率主要為幕墻整體單元的基頻，其主要特征為所有面板測得基頻基本一致；試驗(yàn)邊界構(gòu)造條件下玻璃面板基頻在兩長邊簡支板基頻至四邊嵌固板基頻范圍之間；隨著豎向壓條的拆除，玻璃面板實(shí)測基頻降低；而水平邊界密封膠的拆除、破壞等對玻璃面板基頻無明顯影響。
［關(guān)鍵詞］玻璃幕墻；振動測試；頻域分析；邊界松弛；試驗(yàn)研究
中圖分類號：TU524 文獻(xiàn)標(biāo)識碼： A文章編號：1002-848X(2021)23-0054-07
Test study on boundary relaxation of double-layer insulating glass curtain wall with semi-hidden frame based on vibration test
WEI Mingyu1 , ZHANG Yuanzhi1, YU Shaole2, GU Mingchuan3, CHEN Xinxi2
(1 Sichuan Institute of Building Research, Chengdu 610081， China； 2 China Construction Eighth Engineering Division Co.,Ltd., Shanghai 200135， China； 3 Southwest Jiaotong University, Chengdu 610031， China)
Abstract: For the study of glass curtain wall boundary relaxation after glass panel vibration characteristics, testing experiment using vibration method was conducted on the two full scale glass curtain wall specimens with horizontal hidden frame and vertical apparent frame, the vibration characteristics of the curtain wall panel unit under boundary conditions and boundary relaxation conditions in the actual project was investigated and the analytical solution of double layer elastic thin plate was analyzed. The study results show that the vibration process of the double-layer panel is a process of mutual coupling between the inner and outer sheets of glass; when the curtain wall is not excited, the measured first-order natural frequency is mainly the fundamental frequency of the overall unit of the curtain wall, and its main feature is that the measured fundamental frequencies of all panels are basically the same; the fundamental frequency of the glass panel under the experimental boundary structure conditions is between the fundamental frequencies of the two long sides simply supported plate and the four sides of the embedded plate; with the removal of the vertical battens, the measured fundamental frequency of the glass panel is reduced; and the removal and destruction of the horizontal boundary sealant has no significant effect on the fundamental frequency of the glass panel.
Keywords:glass curtain wall； vibration test； frequency domain analysis； boundary relaxation； test study
*四川省科技廳重點(diǎn)研發(fā)項(xiàng)目（2019YFS0065）。
作者簡介：魏明宇，碩士，正高級工程師，Email:570872855@qq.com； 通信作者：張?jiān)玻┦?，高級工程師，Email: zyzyuanzhi@163.com。
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