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徐宙元，趙人達(dá)，占玉林

（西南交通大學(xué)土木工程學(xué)院， 成都 610031）

 

［摘要］為了研究一種新型的鋼-混凝土組合雙向板的性能，采用屈服線理論對其極限承載力進(jìn)行了分析與推導(dǎo)。并利用有限元軟件ABAQUS對3塊組合雙向板進(jìn)行了數(shù)值模擬，建模中考慮了混凝土的非線性本構(gòu)關(guān)系、鋼板與混凝土之間的非線性接觸關(guān)系。與已有組合單向板試驗結(jié)果的對比表明，ABAQUS軟件能較合理地模擬此類帶開孔鋼板剪力連接件的組合板的受力性能。隨后分析了鋼底板厚度、開孔鋼板間距對承載力的影響，并將數(shù)值模擬結(jié)果與理論計算結(jié)果進(jìn)行比較，證明了采用普通直線形屈服線分布模式的計算結(jié)果是安全可行的。

［關(guān)鍵詞］鋼-混凝土組合結(jié)構(gòu); 雙向板; 開孔鋼板; 屈服線理論; 極限承載力

中圖分類號：TU398      文獻(xiàn)標(biāo)識碼：A      文章編號：1002-848X(2013)14-0067-06

 

Xu Zhouyuan, Zhao Renda, Zhan Yulin

(School of Civil Engineering, Southwest Jiaotong University, Chengdu 610031, China)

 

Abstract: The behavior of a new steel-concrete composite two-way slab was studied. Based on the Yield Line Theory, a practical method to predict the ultimate load of composite slabs was proposed. Three slabs’ behavior was analyzed using ABAQUS program. Nonlinear property of concrete and steel and nonlinear contact between concrete and steel were considered in this model. The comparison between test results and calculated results was performed in order to verify the rationality of the FEM model, and it indicates that the developed FEM model could represent the test exactly. Some parameters including the thickness steel plate and the spacing of perfobond steel plate were considered and calculated. The results reveal that the ordinarily linearity yield line mode is safe and could be used in practice.

Keywords: steel-concrete composite structure; two-way slab; perfobond steel plate; yield line theory; ultimate bearing capacity

*高等學(xué)校博士學(xué)科點(diǎn)專項科研基金資助課題（20090184120033）,西南交通大學(xué)科技發(fā)展基金資助(2009QK04)。

作者簡介：徐宙元，博士研究生，Email：xzhy1242@126.com。

 

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