- 摘 要
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（中國中元國際工程有限公司, 北京 100089）
［摘要］介紹了采用等效連續(xù)梁模型模擬樓蓋振動的基本原理和《多層廠房樓蓋抗微振設計規(guī)范》（GB 50190—93）中頻率密集區(qū)和位移系數(shù)等概念的理論基礎及計算方法；對粘滯阻尼、滯變阻尼兩種阻尼模式對計算結果的影響和理想鉸、實際柱的支座形式對等效連續(xù)梁模型的自振特性和峰值位移的影響進行了分析。分析結果表明，采用等效連續(xù)梁模型模擬樓蓋振動可簡化計算，并可滿足工程精度要求。
［關鍵詞］樓蓋振動; 等效連續(xù)梁; 阻尼模式; 支座模型
中圖分類號：TU375.3 文獻標識碼：A 文章編號：1002-848X(2014)16-0064-04
Calculation method of equivalent continuous beam for floor vibration
Zhang Song, Zhang Tongyi, Shi Cheng, Li Ya
(China IPPR International Engineering Co., Ltd., Beijing 100089, China)
Abstract: The basic principle of floor vibration simulation with equivalent continuous beam calculation model was introduced as well as theoretical basis and calculation methods of frequency-intensive area and displacement coefficient in Code for design of anti-microvibration of multistory factory floor(GB 50190—93). The effects of viscous damping and lag variable damping on calculation results were analyzed. The effects of the bearing form with ideal hinge and actual column on the natural vibration characteristics and peak displacement of equivalent continuous beam model were analyzed. The results show that the equivalent continuous beam model for floor vibration analysis makes calculation simple and can meet the accuracy requirements of the project.
Keywords: floor vibration; equivalent continuous beam; damping mode; bearing model
作者簡介：張松，博士，高級工程師，一級注冊結構工程師，注冊土木工程師（巖土），Email: zhangsong@ippr.net。
參考文獻
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