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    汪明棟¹，  王鐵成²，  于慶榮²，  孫  曄²
    （1 山東交通學(xué)院，濟(jì)南250023；2 天津大學(xué)建筑工程學(xué)院，天津300072）

[摘要] 實(shí)際工程中，輕骨料混凝土( LC)剪力墻的軸壓比在抗震設(shè)計中對其抗剪強(qiáng)度和延性性能有著直接的影響。為使設(shè)計規(guī)程具有足夠的理論依據(jù)，在六榀輕骨料混凝土剪力墻試件的試驗(yàn)與相關(guān)研究的基礎(chǔ)上，研究了在低周反復(fù)荷載作用下，著重考慮不同軸壓比對中等高度有邊框剪力墻的斜截面抗剪強(qiáng)度的影響效應(yīng)，并利用軟化桁架模型，建立剪切問題控制方程組，進(jìn)行了理論分析和預(yù)測，所得結(jié)果與測試數(shù)據(jù)符合良好。
[關(guān)鍵詞] 輕骨料混凝土剪力墻；軸壓比；抗剪強(qiáng)度；軟化桁架模型
中圖分類號：TU375.3    文獻(xiàn)標(biāo)識碼：A  文章編號：1002-848X(2011) S2-0208-03

    Analysis of axial compression ratio on shear strength of reinforced light-weight concrete shear walls with softened truss model
    Wang Mingdong¹,  Wang Tiecheng²,  Yu Qingrong²,  Sun Ye²
    (1 Shandong Jiaotong University, Jinan 250023, China;  2 School of Civil Engineering, Tianjin University, Tianjin 300072, China)

Abstract: For practical reasons, the axial compression ratio is considered to be a critical factor in light weight concrete shear wall design relating to the shear strength as well as the ductility. According to the experiment and relevant research, the shear strength and failure mode of mid-rise light-weight concrete shear walls under cyclic loads, especially under different axial loads, were analyzed. By using a softened truss model,  satisfactory agreement between theoretical results and experimental ones is achieved so as to present an approach for those designers.
Keywords: light-weight concrete shear wall; axial compression ratio; shear strength; softened truss model