雙層鋼板混凝土組合剪力墻有限元分析及設計方法研究*
馬愷澤1，劉超1，劉伯權1，鄢紅良2
- 摘 要
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（1 長安大學建筑工程學院，西安 710064； 2 武漢和創(chuàng)建筑工程設計有限公司, 武漢 430071）
［摘要］以雙層鋼板混凝土組合剪力墻的試驗研究為基礎，采用有限元軟件ABAQUS建立雙層鋼板混凝土組合剪力墻的非線性有限元模型。通過考慮材料非線性和模擬加載全過程對鋼板屈曲等受力性能進行分析。有限元分析結(jié)果與試驗結(jié)果吻合較好。在此基礎上，分析了影響雙層鋼板混凝土組合剪力墻承載力和變形能力的主要因素，包括軸壓比、高寬比、混凝土強度、鋼材強度和鋼板厚度。結(jié)果表明：隨著軸壓比的增大，雙層鋼板混凝土組合剪力墻的極限承載力有所提高，但變形能力下降，隨著高寬比的增大，雙層鋼板混凝土組合剪力墻的極限承載力降低，變形能力增加；隨著混凝土強度的增加，雙層鋼板混凝土組合剪力墻的極限承載力提高，變形能力減??；隨著鋼材強度和鋼板厚度的增加，雙層剛板混凝土組合剪力墻承載能力和變形能力都明顯增加。提出計算該類組合剪力墻壓彎承載力簡化計算公式，將該簡化公式計算結(jié)果與試驗結(jié)果進行對比驗證，結(jié)果表明，該公式的計算精度較高，可用于雙層鋼板混凝土組合剪力墻壓彎承載力計算。［關鍵詞］雙層鋼板混凝土組合剪力墻; 有限元分析; 變形能力; 軸壓比; 混凝土強度等級中圖分類號：TU398 文獻標識碼：A 文章編號：1002-848X(2015)15-0070-06
Study on finite element analysis and design method of dual steel-concrete composite shear wallMa Kaize1, Liu Chao1，Liu Boquan1, Yan Hongliang2,(1 Department of Architecture Engineering, Chang'an University, Xi'an 710064, China; 2 Wuhan Hechuang Architectural Engineering Design Co., Ltd., Wuhan 430071, China)Abstract:Base on the experimental study of dual steel-concrete composite shear wall(DSCW), the finite element analysis software ABAQUS was performed to set up a nonlinear finite element model of DSCW structure.Mechanical properties of buckling of steel plates were analyzed by considering material nonlinearity and simulation of loading process. The finite element analysis results were in good agreement with experimental results. Based on the proposed model, main factors influencing bearing capacity and deformation capacity of the structure were analyzed including axial compression ratio, height-width ratio, concrete strength grade, steel strength and steel plate thickness. It is concluded that with the increase of axial compression ratio, the ultimate bearing capacity of DSCW increases but the deformation capability decreases. With increase of high-width ratio, the deformation capability of DSCW improves but the bearing capacity decreases. With increase of concrete strength grade, the bearing capacity of DSCW improves and the deformation capability decreases. The deformation capability and bearing capability of DSCW improve greatly with increase of the steel strength and steel plate thickness. The simplified formula for compression-bending capacity for DSCW was proposed and fitted well with the experimental results. The formula is good precision and can be used to calculate the compression-bending capacity of DSCW.Keywords:dual steel-concrete composite shear wall; finite element analysis; deformation capacity; axial compression ratio; concrete strength grade
*中國博士后科研基金項目(2012M511958)，國家自然科學基金項目(51308052,51208042)，中央高?？蒲袠I(yè)務費基礎研究項目(2014G1281068)。作者簡介：馬愷澤，博士，副教授，Email：topmkz@126.com。
