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(黑龍江八一農(nóng)墾大學(xué)土木水利學(xué)院, 大慶 163319)

摘要: 為簡(jiǎn)化四邊連接開洞屈曲約束鋼板墻結(jié)構(gòu)的建模、分析和設(shè)計(jì),提出采用等效多斜桿模型作為四邊連接開洞屈曲約束鋼板墻的等代模型. 確定了合理的桿件數(shù)量、位置和斜桿截面面積分配比例. 基于剛度和承載力等效原則給出了斜桿截面面積和等效材料強(qiáng)度的計(jì)算公式. 利用有限元方法對(duì)四邊連接開洞屈曲約束鋼板墻和等效多斜桿模型進(jìn)行了分析對(duì)比,驗(yàn)證了等效多斜桿模型的準(zhǔn)確性. 結(jié)果表明:提出的等效多斜桿模型不僅能夠準(zhǔn)確模擬四邊連接開洞屈曲約束鋼板墻的受力過程,還能較好地模擬開洞屈曲約束鋼板墻對(duì)邊緣構(gòu)件的傳力,結(jié)構(gòu)的初始剛度、屈服承載力、荷載-位移曲線和邊緣構(gòu)件的內(nèi)力大小與分布均符合較好,可以作為四邊連接開洞屈曲約束鋼板墻的等代模型進(jìn)行結(jié)構(gòu)分析與設(shè)計(jì).

關(guān)鍵詞: 屈曲約束鋼板墻; 開洞; 四邊連接; 等效多斜桿模型

中圖分類號(hào):TU392. 4 文獻(xiàn)標(biāo)志碼:A 文章編號(hào):1002-848X(2023)03-0122-05

DOI:10. 19701 / j. jzjg. LS210346

Simplified analysis model for four-side connected buckling restrained steel plate shear wall with holes

LIU Wenyang, DAI Qipeng, GUO Wei, ZHANG Ronghua

(College of Civil Engineering and Water Conservancy, Heilongjiang Bayi Agricultural University, Daqing 163319, China)

Abstract:In order to simplify the modeling, analysis and design of four-side connection buckling restrained steel plate shearwall (FBRW) with holes, the equivalent diagonal strip model was presented as the equivalent model of holed FBRW. Thereasonable number of diagonal strips, location and section area distribution ratio of diagonal strips were proposed. Based onthe principle of equal stiffness and bearing capacity, the formulas for calculating the section area and equivalent materialstrength of diagonal strips were presented. The holed FBRW and the equivalent diagonal strip model were analyzed by finiteelement method to verify the accuracy of the equivalent diagonal strip model. The results indicated that the equivalentdiagonal strip model can accurately simulate the loading process of the holed FBRW and the force transmission of the holedFBRW to boundary elements. The initial stiffness, bearing capacity, load-displacement curve, the magnitude anddistribution of internal forces of boundary elements were all in good agreement. So the proposed equivalent diagonal stripmodel can be used as the equivalent model of the holed FBRW in structural analysis and design.

Keywords:buckling restrained steel plate shear wall; holes; four-side connection; equivalent diagonal strip model

∗國(guó)家自然科學(xué)基金項(xiàng)目(51608180),黑龍江八一農(nóng)墾大學(xué)學(xué)成、引進(jìn)人員科研啟動(dòng)計(jì)劃課題(XDB-2017-05),黑龍江八一農(nóng)墾大學(xué)研究生創(chuàng)新科研項(xiàng)目(YJSCX2021-Y118).

第一作者:劉文洋,博士,副教授,主要從事鋼結(jié)構(gòu)抗震研究,Email:wyliu81@ 126. com.

[引用本文] 劉文洋,代啟鵬,郭巍,等. 四邊連接開洞屈曲約束鋼板墻簡(jiǎn)化分析模型[ J]. 建筑結(jié)構(gòu),2023,53(3):122-126. LIU Wenyang,DAI Qipeng,GUO Wei,et al. Simplified analysis model for four-side connected buckling restrainedsteel plate shear wall with holes[J]. Building Structure,2023,53(3):122-126.