RC-加气混凝土砌块组合墙的抗震性能
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摘要
为了解RC-加气混凝土砌块组合墙的抗震性能,进行3片不同构造形式的RC-加气混凝土砌块墙的水平低周反复荷载试验。介绍组合墙试件的破坏过程和破坏特点,重点研究3片试件的承载力、滞回曲线、刚度和延性性能,并与已有普通加气混凝土砌块墙试验数据进行对比分析。研究结果表明:构造柱和系梁限制砌块裂缝的产生和发展,改善砌块的脆性性质,提高砌块的力学性能;通过合理构造措施将钢筋混凝土与加气混凝土砌块结合在一起形成的组合承重墙,具有较好的抗震性能,为加气混凝土砌块墙在多层房屋结构中的应用提供基础。
Three composite wall specimens of RC-autoclaved aerated concrete blocks were tested under cyclic lateral loading to investigate their seismic performance.The damage processes and failure characters of the composite wall specimens were presented.And the load-bearing capacity,hysteresis behavior,stiffness and ductility capacity of the composite wall specimens were investigated,which were compared with those of the ordinary wall of autoclaved aerated concrete blocks.Test results show that the presence of constructional columns and beams constrained the propagation of cracks in the autoclaved aerate concrete blocks.And then the brittle behavior of the autoclaved aerated concrete blocks is changed,and the mechanical performance of the autoclaved aerated concrete blocks is improved.Composite walls of RC-autoclaved aerated concrete blocks with reasonable forms possess good seismic performance,and research on the composite walls provides a basis for the application of walls of autoclaved aerated concrete blocks in multi-storey buildings.
Three composite wall specimens of RC-autoclaved aerated concrete blocks were tested under cyclic lateral loading to investigate their seismic performance.The damage processes and failure characters of the composite wall specimens were presented.And the load-bearing capacity,hysteresis behavior,stiffness and ductility capacity of the composite wall specimens were investigated,which were compared with those of the ordinary wall of autoclaved aerated concrete blocks.Test results show that the presence of constructional columns and beams constrained the propagation of cracks in the autoclaved aerate concrete blocks.And then the brittle behavior of the autoclaved aerated concrete blocks is changed,and the mechanical performance of the autoclaved aerated concrete blocks is improved.Composite walls of RC-autoclaved aerated concrete blocks with reasonable forms possess good seismic performance,and research on the composite walls provides a basis for the application of walls of autoclaved aerated concrete blocks in multi-storey buildings.
引文
[1]吴东云,何向玲,成美凤.粉煤灰加气混凝土砌块墙体抗剪性能试验研究[J].新型建筑材料,2006(11):20-23.WU Dong-yun,HE Xiang-ling,CHENG Mei-feng.Experimental study on shear resistant of fly ash aerated concrete block wall[J].New Building Materials,2006(11):20-23.
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[3]赵全斌,于敬海.约束加气混凝土承重砌体抗震性能的试验研究[J].新型建筑材料,2008(5):35-37.ZHAO Quan-bin,YU Jing-hai.Experimental study on anti seismic performance of load-bearing masonry work of restraint autoclaved aerated concrete block[J].New Building Materials,2008(5):35-37.
[4]Narayanan N,Ramamurthy K.Structure and properties of aerated concrete:A review[J].Cement and Concrete Composites,2000,22(5):321-329.
[5]Briesemann D.A method of calculating the shear resistance of reinforced slabs and beams of autoclaved aerated concrete[J].International Journal of Cement Composites and Lightweight Concrete,1980,2(1):21-31.
[6]Hearne E J,Brettell R,Bright N J.The behaviour of autoclaved aerated concrete blockwork subjected to concentrated loading[J].International Journal of Cement Composites and Lightweight Concrete,1980,2(1):49-55.
[7]郭猛,姚谦峰.框架?密肋复合墙结构新体系研究[J].地震工程与工程振动,2009,29(5):73-78.GUO Meng,YAO Qian-feng.Research on frame-multi-ribbed composite wall structure new system[J].Earthquake Engineering and Engineering Vibration,2009,29(5):73-78.
[8]GB50003—2001,砌体结构设计规范[S].GB50003—2001,Code for design of masonry Structures[S].
[9]胡志远.采用端部约束的配筋砌块砌体剪力墙抗震性能试验研究[D].哈尔滨:哈尔滨工业大学土木工程学院,2006:37-41.HU Zhi-yuan.Experimental study on the seismic behavior of reinforced concrete masonry shear walls with end restraint[D].Harbin:Harbin Institute of Technology.School of Civil Engineering,2006:37-41.
[10]过镇海,时旭东.钢筋混凝土原理和分析[M].北京:清华大学出版社,2003:335-337.GUO Zhen-hai,SHI Xu-dong.Reinforced concrete theory and analyze[M].Beijing:Tsinghua University Press,2003:335-337.
[11]GB50011—2001,建筑结构抗震设计规范[S].GB50011—2001,Code for Seismic Design of Buildings[S].
[2]赵成文,张亮,高连玉,等.A类蒸压加气混凝土砌块墙体抗震性能试验[J].沈阳建筑大学学报,2009,25(3):426-432.ZHAO Cheng-wen,ZHANG Liang,GAO Lian-yu,et al.Experimental study on seismic performance of autoclaved aerated concrete block bearing walls[J].Journal of Shenyang Jianzhu University,2009,25(3):426-432.
[3]赵全斌,于敬海.约束加气混凝土承重砌体抗震性能的试验研究[J].新型建筑材料,2008(5):35-37.ZHAO Quan-bin,YU Jing-hai.Experimental study on anti seismic performance of load-bearing masonry work of restraint autoclaved aerated concrete block[J].New Building Materials,2008(5):35-37.
[4]Narayanan N,Ramamurthy K.Structure and properties of aerated concrete:A review[J].Cement and Concrete Composites,2000,22(5):321-329.
[5]Briesemann D.A method of calculating the shear resistance of reinforced slabs and beams of autoclaved aerated concrete[J].International Journal of Cement Composites and Lightweight Concrete,1980,2(1):21-31.
[6]Hearne E J,Brettell R,Bright N J.The behaviour of autoclaved aerated concrete blockwork subjected to concentrated loading[J].International Journal of Cement Composites and Lightweight Concrete,1980,2(1):49-55.
[7]郭猛,姚谦峰.框架?密肋复合墙结构新体系研究[J].地震工程与工程振动,2009,29(5):73-78.GUO Meng,YAO Qian-feng.Research on frame-multi-ribbed composite wall structure new system[J].Earthquake Engineering and Engineering Vibration,2009,29(5):73-78.
[8]GB50003—2001,砌体结构设计规范[S].GB50003—2001,Code for design of masonry Structures[S].
[9]胡志远.采用端部约束的配筋砌块砌体剪力墙抗震性能试验研究[D].哈尔滨:哈尔滨工业大学土木工程学院,2006:37-41.HU Zhi-yuan.Experimental study on the seismic behavior of reinforced concrete masonry shear walls with end restraint[D].Harbin:Harbin Institute of Technology.School of Civil Engineering,2006:37-41.
[10]过镇海,时旭东.钢筋混凝土原理和分析[M].北京:清华大学出版社,2003:335-337.GUO Zhen-hai,SHI Xu-dong.Reinforced concrete theory and analyze[M].Beijing:Tsinghua University Press,2003:335-337.
[11]GB50011—2001,建筑结构抗震设计规范[S].GB50011—2001,Code for Seismic Design of Buildings[S].
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