- 摘 要
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(1 東南大學(xué)土木工程學(xué)院， 南京210096； 2 蘇州市吳中區(qū)建筑工程質(zhì)量監(jiān)督站， 蘇州 215128；
3 北京城建設(shè)計發(fā)展集團股份有限公司， 北京 100037）
［摘要］大跨、輕柔結(jié)構(gòu)的設(shè)計中，結(jié)構(gòu)舒適度控制已經(jīng)成為其中重要設(shè)計控制準則之一。設(shè)計初期的理論分析值與現(xiàn)場實測值往往會產(chǎn)生較大的出入，因此需要對結(jié)構(gòu)有限元模型進行精細化研究。影響結(jié)構(gòu)舒適度分析模型的主要因素包括結(jié)構(gòu)質(zhì)量的選取、樓板面層剛度、主次鋼梁的連接，結(jié)構(gòu)優(yōu)化選擇及阻尼比的設(shè)定，由此提出更為精確的結(jié)構(gòu)舒適度分析模型。并以該模型為依據(jù)進行TMD減振控制。以武漢大學(xué)萬林博物館不規(guī)則懸挑樓蓋工程為背景，進行理論分析并與實測值對比驗證。結(jié)果表明：極限承載力模型對于振動舒適度評價不再適用。采用文中考慮的相關(guān)因素進行精細化分析可以比較精確模擬結(jié)構(gòu)在實際使用中的動力特性與動力響應(yīng)， TMD減振控制后結(jié)構(gòu)滿足舒適要求，本文的研究方法可為進行舒適度分析的結(jié)構(gòu)建模提供參考。
［關(guān)鍵詞］不規(guī)則懸挑； 精細化研究； 動力特性； TMD減振控制； 舒適度
中圖分類號： TU352 文獻標識碼： A文章編號： 1002-848X(2016)S2-0130-07
Sophisticated study on the influencing parameter of irregular and cantilever floor
based on vibration serviceability evaluation
Zhou Chen1,2， Zhang Zhiqiang1， Ye Fei3， Hu Xinyi1,3， Yang Kang1
(1 School of Civil Engineering, Southeast University, Nanjing 210096, China;
2 Construction Quality Supervision Station of Wuzhong, Suzhou 215128， China;
3 Beijing Urban Construction Design & Development Group Co., Ltd., Beijing 100037, China)
Abstract: The vibration serviceability has become one of the governing principles for large-span flexible structure design. The calculated values have bit diffidence with the measured, accurate model was necessary to established. Factories influence the vibration serviceability including structural quality, stiffness of floor surface, connection between primary and secondary steel beam, structure optimization and damping ratio. TMD vibration control is construct in this modal. Based on the steel-concrete floor structure of Wanlin museum in Wuhan University, calculated and measured modal values are in compared. The results show that ultimate load-bearing capacity structure model is no longer applicable for vibration serviceability; The sophisticated model presented can better reflect the characteristics and dynamic response of the structure, the structure can meet vibration serviceability after TMD vibration control. The research method proposed eventually can be significant to structure modeling using for vibration serviceability evaluation．
Keywords: irregular; cantilever; sophisticated study; dynamic characteristics; TMD vibration control; serviceability evaluation
*國家自然科學(xué)基金“高鐵站房大跨樓蓋結(jié)構(gòu)隨機人群荷載效應(yīng)及其MTMD減振控制研究”（批準號：51278106）。
作者簡介： 周晨，碩士，Email：zc_npl@sina.com。
