钢筋混凝土低剪力墙拟静力试验及滞回模型
|
摘要
目的研究钢筋混凝土低剪力墙在低周期反复荷载作用下受力性能.方法将剪力墙的横截面和配筋保持不变,只改变剪力墙的轴向荷载(轴压比),对3片钢筋混凝土低剪力墙采用低周反复加载方式进行了试验,比较不同轴压比下剪力墙的破坏形态、破坏程度,以及对试验现象进行分析.结果 3个试件剪跨比较小,没有明显的屈服荷载和明显的下降段,滞回能力差,循环次数少,延性差,耗能能力差.结论在对钢筋混凝土低剪力墙恢复力曲线模型进行选取时,建议采用坡顶刚度退化二线型模型或坡顶刚度退化三线型模型.
This paper aims to study the bearing capability of shear walls made of reinforced concrete under the circumstance of low cyclic lateral loading.Quasi-static test of three reinforced concrete shear walls are carried out under cyclic lateral loading,while keeping reinforced sections unchanged,changing axial load,so that the relationship between force and displacement could be obtained.By comparing the destructed behaviors and grades of the walls under different axial compression ratio,and shear span ratio based on the analysis of test and hysteretic curve,it can be concluded that there is not apparent yield point and decline stage for the short shear walls,with the poor hysteresis and ductility performance,low cycle frequency,inferiror extension ability,and bad energy consuming capability.Three-linear model of sloping stiffness degradation and two-linear model of sloping stiffness degradation are suggested for RC short shear walls.
This paper aims to study the bearing capability of shear walls made of reinforced concrete under the circumstance of low cyclic lateral loading.Quasi-static test of three reinforced concrete shear walls are carried out under cyclic lateral loading,while keeping reinforced sections unchanged,changing axial load,so that the relationship between force and displacement could be obtained.By comparing the destructed behaviors and grades of the walls under different axial compression ratio,and shear span ratio based on the analysis of test and hysteretic curve,it can be concluded that there is not apparent yield point and decline stage for the short shear walls,with the poor hysteresis and ductility performance,low cycle frequency,inferiror extension ability,and bad energy consuming capability.Three-linear model of sloping stiffness degradation and two-linear model of sloping stiffness degradation are suggested for RC short shear walls.
引文
[1]姚振纲,刘祖华.建筑结构试验[M].上海:同济大学出版社,2000.(Yao Zhengang,Liu Zuhua.Building Structural Test[M].Shanghai:Tongji University Press,2000.)
[2]Frederic L,Paultre P.Behavior of high-strength concrete columns under cyclic flexure and con-stant axial load[J].ACI Structural Journal,2000,97(4):591-601.
[3]李兵,李宏男,曹敬党.钢筋混凝土高剪力墙拟静力试验[J].沈阳建筑大学学报:自然科学版,2009,25(2):230-234.(Li Bing,Li Hongnan,Cao Jingdang.Research of quasi-static test and hysteretic curve model for re-inforced concrete high shear walls[J].Journal of Shenyang Jianzhu University:Natural Science,2009,25(2):230-234.)
[4]李兵,陈鑫,赵乃志.RC框-剪结构多维弹塑性时程反应分析[J].低温建筑技术,2009,31(8):29-31.(Li Bing,Chen Xin,Zhao Naizhi.Nonlinear anal-ysis of R/C frame-wall structures to multiple earthquake excitations[J].Low Temperature Ar-chitecture Technology,2009,31(8):29-31.)
[5]李兵,李宏男,史文学,等.RC框架-剪力墙结构的弹塑性时程分析[J].沈阳建筑大学学报:自然科学版,2006,22(3):393-396.(Li Bing,Li Hongnan,Shi Wenxue,et al.Elastic-plastic time history analytical method for marco-finite element model of RC frame-wall structure[J].Journal of Shenyang Jianzhu University:Nat-ural Science,2006,22(3):393-396.)
[6]张松,吕西林,章红梅.钢筋混凝土剪力墙构件极限位移的计算方法及试验研究[J].土木工程学报,2009(4):10-16.(Zhang Song,LXilin,Zhang Hongmei.Experi-mental and analytical studies on the ultimate dis-placement of RC shear walls[J].China Civil En-gineering Journal,2009(4):10-16.)
[7]李兵,李宏男.钢筋混凝土剪力墙弹塑性分析方法[J].地震工程与工程振动,2004,24(1):79-81.(Li Bing,Li Hongnan.Analytical method of elas-to-plasticity for R/C shear wall[J].Earthquake Engineering and Engineering Vibration,2004,24(1):79-81.)
[8]Colotti V.Shear behavior of R/C structural walls[J].Journal of Structure Engineering,1993,119(3):728-746.
[9]Li Hongnan,Li Bing.Study of a new macro-finite element model for seismic performance of RC shear walls using quasi-static experiments[J].Ad-vances in Structural Engineering,2006,9(2):173-184.
[10]Zhao Qiuhong.Cyclic behavior of traditional and innovative composite shear walls[J].Journal of Structural Engineering,2004,130(2):271-284.
[11]Jonah J S,Robert G D,Gilbert Y G.Analysis of steel plate shear walls using the modified strip model[J].Journal of Structural Engineering,2009,135(11):1357-1366.
[12]Ni Chun,Erol K.Performance of shear walls with diagonal or transverse lumber sheathing[J].Jour-nal of Structural Engineering,2007,133(12):1832-1842.
[2]Frederic L,Paultre P.Behavior of high-strength concrete columns under cyclic flexure and con-stant axial load[J].ACI Structural Journal,2000,97(4):591-601.
[3]李兵,李宏男,曹敬党.钢筋混凝土高剪力墙拟静力试验[J].沈阳建筑大学学报:自然科学版,2009,25(2):230-234.(Li Bing,Li Hongnan,Cao Jingdang.Research of quasi-static test and hysteretic curve model for re-inforced concrete high shear walls[J].Journal of Shenyang Jianzhu University:Natural Science,2009,25(2):230-234.)
[4]李兵,陈鑫,赵乃志.RC框-剪结构多维弹塑性时程反应分析[J].低温建筑技术,2009,31(8):29-31.(Li Bing,Chen Xin,Zhao Naizhi.Nonlinear anal-ysis of R/C frame-wall structures to multiple earthquake excitations[J].Low Temperature Ar-chitecture Technology,2009,31(8):29-31.)
[5]李兵,李宏男,史文学,等.RC框架-剪力墙结构的弹塑性时程分析[J].沈阳建筑大学学报:自然科学版,2006,22(3):393-396.(Li Bing,Li Hongnan,Shi Wenxue,et al.Elastic-plastic time history analytical method for marco-finite element model of RC frame-wall structure[J].Journal of Shenyang Jianzhu University:Nat-ural Science,2006,22(3):393-396.)
[6]张松,吕西林,章红梅.钢筋混凝土剪力墙构件极限位移的计算方法及试验研究[J].土木工程学报,2009(4):10-16.(Zhang Song,LXilin,Zhang Hongmei.Experi-mental and analytical studies on the ultimate dis-placement of RC shear walls[J].China Civil En-gineering Journal,2009(4):10-16.)
[7]李兵,李宏男.钢筋混凝土剪力墙弹塑性分析方法[J].地震工程与工程振动,2004,24(1):79-81.(Li Bing,Li Hongnan.Analytical method of elas-to-plasticity for R/C shear wall[J].Earthquake Engineering and Engineering Vibration,2004,24(1):79-81.)
[8]Colotti V.Shear behavior of R/C structural walls[J].Journal of Structure Engineering,1993,119(3):728-746.
[9]Li Hongnan,Li Bing.Study of a new macro-finite element model for seismic performance of RC shear walls using quasi-static experiments[J].Ad-vances in Structural Engineering,2006,9(2):173-184.
[10]Zhao Qiuhong.Cyclic behavior of traditional and innovative composite shear walls[J].Journal of Structural Engineering,2004,130(2):271-284.
[11]Jonah J S,Robert G D,Gilbert Y G.Analysis of steel plate shear walls using the modified strip model[J].Journal of Structural Engineering,2009,135(11):1357-1366.
[12]Ni Chun,Erol K.Performance of shear walls with diagonal or transverse lumber sheathing[J].Jour-nal of Structural Engineering,2007,133(12):1832-1842.
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心