- 摘 要
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(清華大學土木工程系，結構工程與振動教育部重點實驗室，北京 100084)
［摘要］通過ANSYS軟件對混凝土翼板開洞的鋼-混凝土組合梁進行了分析計算，與試驗結果的對比表明有限元計算結果可靠。通過有限元建模計算分析，探討了混凝土翼板的正應力分布規(guī)律，并通過參數分析，提出了在彈性范圍內鋼-混凝土組合梁混凝土翼板開洞截面有效寬度的實用設計公式，并與試驗測得的撓度及有限元計算撓度進行了對比。
［關鍵詞］鋼-混凝土組合梁；翼板開洞；有效翼緣寬度
Analysis of effective flange width on composite steel-concrete beams with openings in concrete slab
Nie Jianguo, Wang Yuhang(Dept.of Civil
Abstract:Composite steel-concrete beams with openings in concrete slab were analyzed by finite element program ANSYS, and the predicted results were verified by experiment. Normal stress distributed law was analyzed by the results of finite element program. Parametric analysis was conducted to give the practical simplified design method for effective width of composite steel-concrete beams with openings in concrete slab. The deflection predicted by simplified method was compared with the test results and FEA results.
Keywords:composite steel-concrete beams; openings in concrete slab; effective flange width
國家杰出青年科學基金資助項目(50025822)。
作者簡介：聶建國，教授，博士生導師，教育部長江學者特聘教授，Email:niejg@mail.tsinghua.edu.cn
