无腹筋板柱节点抗冲切承载力计算研究
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摘要
以国内外既有方形中柱节点试验数据作为评估样本,对比分析国内外设计规范关于板柱节点抗冲切承载力计算和规定的差异。基于对样本的回归分析,提出形式简单的无腹筋板冲切承载力建议计算公式,结果表明,预测值与样本吻合较好。最后提出了无腹筋板柱节点抗冲切承载力的建议计算公式,为我国相关规范的编写提供参考。
The test data of the square pillars at home and abroad were taken as the evaluation samples, and the differences between the domestic and foreign design specifications on punching bearing capacity of the slab-column joints were compared and analyzed. Based on the regression analysis of the sample, a formula for calculating the punching bearing capacity of slab without shear reinforcement was proposed. The results show that the predicted value agrees well with the sample. Finally, the proposed calculation formula for the punching bearing capacity of slab-column joints without shear reinforcement was proposed, which provides a reference for the preparation of relevant specifications in China.
The test data of the square pillars at home and abroad were taken as the evaluation samples, and the differences between the domestic and foreign design specifications on punching bearing capacity of the slab-column joints were compared and analyzed. Based on the regression analysis of the sample, a formula for calculating the punching bearing capacity of slab without shear reinforcement was proposed. The results show that the predicted value agrees well with the sample. Finally, the proposed calculation formula for the punching bearing capacity of slab-column joints without shear reinforcement was proposed, which provides a reference for the preparation of relevant specifications in China.
引文
[1] SVEN KINNUNEN,HENRIK NYLANDER.Punching of concrete slabs without shear reinforcement[J].ACI Structural Journal,2008,105(4):440-450.
[2] MIKAEL W B,MOGENS P N,JENSEN B C.Axisymmetric punching of plain and reinforced concrete [R].Copenhagen:Technical University of Denmark,1976:80-88.
[3] JIANG DAHUA,SHEN JINGHUA.Strength of concrete slabs in punching shear[J].Journal of Structural Engineering,1986,112(12):2578-2591.
[4] BORTOLOTTI L.Punching shear strength in concrete slabs[J].ACI Structural Journal,1990,87(2):208-219.
[5] SCOTT B A,SIDNEY H S.Ultimate strength of slab-column connections[J].ACI Structural Journal,1987,84(3):225-261.
[6] TALBOT A N.Reinforced concrete wall footings and column footings[D].Urbana-Champaign:University of Illinois,1925:67.
[7] Building code requirements for structural concrete(ACI 318M-11) and commentary:ACI Committee 318[S].Farmington Hills:American Concrete Institute,2011:503.
[8] Design of concrete structures:CAN/CSA A23.3-04[S].Mississauga:Canadian Standards Association,2004:214.
[9] Structural use of concrete-part 1:code of practice of design and construction:BS 8110-1∶1997 [S].British:British Cement Association,1997:55-58.
[10] Eurocode 2:Design of concrete structures-part 1-1:general rules and rules for buildings [S].Brussels:Standards Policy and Strategy Committee,2003:225.
[11] 混凝土结构设计规范:GB 50010—2010 [S].北京:中国建筑工业出版社,2011:201.
[12] 魏巍巍,贡金鑫,田磊.钢筋混凝土板受冲切承载力对比分析[J].建筑科学与工程学报,2010,27(4):44-56.
[13] 赵晋.钢筋混凝土板柱节点冲切破坏后性能研究[D].长沙:湖南大学.2016:144-149.
[14] 赵晋,易伟建,朱泽华.板柱节点冲切破坏后受力性能试验研究[J].建筑结构学报.2015,36(7):35-42.
[15] 易伟建,赵晋,朱泽华.偏心荷载作用下中柱节点冲切破坏后受力性能试验研究[J].建筑结构,2016,46(2):1-7.
[16] TIAN YING,JAMES O J,OGUZHAN B.Strength evaluation of interior slab-column connections[J].ACI Structural Journal,2008,105(6):692-700.
[17] ALEXANDER S D B,SIMMONDS S H.Tests of column-flat plate connections[J].ACI Structural Journal,1992,89(5):495-502.
[2] MIKAEL W B,MOGENS P N,JENSEN B C.Axisymmetric punching of plain and reinforced concrete [R].Copenhagen:Technical University of Denmark,1976:80-88.
[3] JIANG DAHUA,SHEN JINGHUA.Strength of concrete slabs in punching shear[J].Journal of Structural Engineering,1986,112(12):2578-2591.
[4] BORTOLOTTI L.Punching shear strength in concrete slabs[J].ACI Structural Journal,1990,87(2):208-219.
[5] SCOTT B A,SIDNEY H S.Ultimate strength of slab-column connections[J].ACI Structural Journal,1987,84(3):225-261.
[6] TALBOT A N.Reinforced concrete wall footings and column footings[D].Urbana-Champaign:University of Illinois,1925:67.
[7] Building code requirements for structural concrete(ACI 318M-11) and commentary:ACI Committee 318[S].Farmington Hills:American Concrete Institute,2011:503.
[8] Design of concrete structures:CAN/CSA A23.3-04[S].Mississauga:Canadian Standards Association,2004:214.
[9] Structural use of concrete-part 1:code of practice of design and construction:BS 8110-1∶1997 [S].British:British Cement Association,1997:55-58.
[10] Eurocode 2:Design of concrete structures-part 1-1:general rules and rules for buildings [S].Brussels:Standards Policy and Strategy Committee,2003:225.
[11] 混凝土结构设计规范:GB 50010—2010 [S].北京:中国建筑工业出版社,2011:201.
[12] 魏巍巍,贡金鑫,田磊.钢筋混凝土板受冲切承载力对比分析[J].建筑科学与工程学报,2010,27(4):44-56.
[13] 赵晋.钢筋混凝土板柱节点冲切破坏后性能研究[D].长沙:湖南大学.2016:144-149.
[14] 赵晋,易伟建,朱泽华.板柱节点冲切破坏后受力性能试验研究[J].建筑结构学报.2015,36(7):35-42.
[15] 易伟建,赵晋,朱泽华.偏心荷载作用下中柱节点冲切破坏后受力性能试验研究[J].建筑结构,2016,46(2):1-7.
[16] TIAN YING,JAMES O J,OGUZHAN B.Strength evaluation of interior slab-column connections[J].ACI Structural Journal,2008,105(6):692-700.
[17] ALEXANDER S D B,SIMMONDS S H.Tests of column-flat plate connections[J].ACI Structural Journal,1992,89(5):495-502.