钢筋混凝土梁动态试验与数值模拟
详细信息 本馆镜像全文    |  推荐本文 | | 获取馆网全文
摘要
试验研究、数值模拟地震作用范围内加载速率对钢筋混凝土梁影响。试验研究混凝土强度、钢筋强度、剪跨比、加载速率及加载模式等对钢筋混凝土梁力学及变形性能影响;基于ABAQUS有限元软件建立钢筋混凝土梁计算模型,考虑钢筋、混凝土的率敏感性,对梁试件在不同工况下动态性能进行数值模拟;模拟结果与试验结果吻合较好。
The effects of loading rate that might be experienced during earthquakes on reinforced concrete beams were experimentally and numerically studied here. Firstly,the effects of loading rate on mechanical properties and deformation of reinforced concrete beams were experimentally studied with the variation of several parameters including concrete strength,steel strength,shear span ratio,loading rate and loading mode. Then,based on the finite element software ABAQUS,considering the strain rate sensitivity of concrete and steel,the dynamic performances of reinforced concrete beams under different loading conditions were simulated,and the simulation results agreed well with the test ones.
引文
[1]林峰,顾祥林,匡昕昕,等.高应变率下建筑钢筋的本构模型[J].建筑材料学报,2008,11(1):14-20.LIN Feng,GU Xiang-lin,KUANG Xin-xin,et al.Constitutive models for reinforcing steel bars under high strain rates[J]Journal of Building Materials,2008,11(1):14
    [2]梁磊,顾强康,原璐.AFRP约束混凝土多次冲击试验研究[J].振动与冲击,2013,32(5):90-95.LIANG Lei,GU Qiang-kang,YUAN lu.Experimental research on AFRP confined concrete under repeated impact[J].Journal of Vibration and Shock,2013,32(5):90-95.
    [3]Bertero V V,Rea D,Mahin S,et al.Rate of loading effects on uncracked and repaired reinforced concrete members[C].Proceeding of Fifth World Conference on Earthquake Engineering,Rome,1973(1):1461-1471.
    [4]Kulkarni S M,Shah S P.Response of reinforced concrete beams at high strain rates[J].ACI Structural Journal,1998,95(6):705-715.
    [5]Fu H C,Erki M A,Seckin M.Review of effects of loading rate on reinforced concrete[J].Journal of Structural Engineering,1991,117(12):3660-3679.
    [6]Pankaj P,Lin E.Material modeling in the seismic response analysis for the design of RC framed structures[J].Engineering Structures,2005,27:1014-1023.
    [7]阎石,张亮,王丹.钢筋混凝土板在爆炸荷载作用下的破坏模式分析[J].沈阳建筑大学学报,2005,21(3):177-180.YAN Shi,ZHANG Liang,WANG Dan.Failure mode analysis for rc slab under explosive loads[J].Journal of Shenyang Architectural and Civil Engineering Institute,2005,21(3):177-180.
    [8]Wei J,Quintero R,Galati N,et al.Failure modeling of bridge components subjected to blast loading.part1:strain rate-dependent damage model for concrete[J].International Journal of Concrete Structures and Materials,2007,1(1):19-28.
    [9]Chen L,Fang Q,Zhang Y,et al.Rate-sensitive numerical analysis of dynamic responses of arched blast doors subjected to blast loading[J].Transactions of Tian Jin University,2008,14:348-352.
    [10]Shimazaki K,Wada A.Dynamic analysis of a reinforced concrete shear wall with strain rate effect[J].ACI Structural Journal,1998,95(5):488-497.
    [11]李敏,李宏男.建筑钢筋动态试验及本构模型[J].土木工程学报,2010,43(4):70-75.LI Min,LI Hong-nan.Dynamic test and constitutive model for reinforcing steel[J].China Civil Engineering Journal,2010,43(4):70-75.
    [12]Lee J,Fenves G L.Plastic-damage model for cyclic loading of concrete structure[J].Journal of Engineering Mechanics,1998,124(8):892-900.
    [13]GB50010-2002,混凝土结构设计规范[S].北京:中国建筑工业出版社,2001.
    [14]李敏,李宏男,张皓,等.中强混凝土应变率效应的试验研究与数值模拟[J].混凝土,2014(4):34-37.LI Min,LI Hong-nan,ZHANG Hao,et al.Experimental and numerical study on the effects of strain rate of middle strength concrete[J].Concrete,2014(4):34-37.
    [15]Eibl J.Concrete structures under impact and impulsive loading(CEB-bulletin d’information,NO.187)[R].Dubrovnik:Comite Euro-International du Beton,1988.

版权所有:© 2021 中国地质图书馆 中国地质调查局地学文献中心