[1]张峰,叶见曙.预应力混凝土梁开裂后的结构行为[J].东南大学学报(自然科学版),2005,35(4):584-588.[doi:10.3969/j.issn.1001-0505.2005.04.019]
　Zhang Feng,Ye Jianshu.Structure behavior of cracked prestressed concrete beam[J].Journal of Southeast University (Natural Science Edition),2005,35(4):584-588.[doi:10.3969/j.issn.1001-0505.2005.04.019]
点击复制

预应力混凝土梁开裂后的结构行为()
分享到：

《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
35
期数:
2005年第4期
页码:
584-588
栏目:
交通运输工程
出版日期:
2005-07-20

文章信息/Info

Title:
Structure behavior of cracked prestressed concrete beam
作者:
张峰;  叶见曙
东南大学交通学院, 南京 210096
Author(s):
Zhang Feng;  Ye Jianshu
College of Transportation, Southeast University, Nanjing 210096, China
关键词:
Timoshenko梁;  非线性;  有限元法;  本构关系;  中性轴;  试验
Keywords:
Timoshenko beam;  non-linearity;  finite element method;  constitutive equations;  neutral axis;  test
分类号:
U441
DOI:
10.3969/j.issn.1001-0505.2005.04.019
摘要:
为了研究预应力混凝土梁开裂后的结构非线性行为,基于Timoshenko分层梁理论,选取恰当的混凝土和钢筋的本构关系,考虑了混凝土的拉伸刚化效应和中性轴变化对预应力钢筋混凝土梁的受力、变形的影响,有效地模拟了预应力混凝土梁的开裂、屈服和失效全过程.分析了预应力混凝土梁在单调加载下的受力性能,并与试验结果进行比较.探讨了梁开裂后的刚度和截面的应力重分布现象.算例表明分层梁单元模型对于预应力混凝土梁的非线性分析有良好的适应性,对梁开裂后的使用性能评估有实际应用价值.
Abstract:
In order to research the non-linearity structure behavior of the cracked prestressed concrete beam, some factors were considered by using Timoshenko layered beam theory, including the constitutive equation of concrete and steel, the tension stiffening affection of concrete, and the impacts of neutral axis changing on the prestressed concrete beam’s mechanical performance. The whole process of the prestressed concrete beam’s cracking and crushing was effectively simulated. The nonlinear analysis results of a prestressed concrete beam model under monotonic loading were compared with the results from static test, and the stiffness and the stress redistribution were also analyzed. The results show that the layered beam model can well describe the nonlinear behavior of the prestressed concrete beams and it is valuable to evaluate the serviceability of the cracked beam.

参考文献/References:

[1] Peic N,Pilakoutas K.Concrete beams with externally bonded flexural FRP reinforcement:analytical investigation of bonding failure[J].Composites Part B,2003,34(4):327-338.
[2] Vecchio F J,Bucci F.Analysis of repaired reinforced concrete structures[J].Journal of Structural Engineering,1999,125(6):644-652.
[3] Thabet A,Haldane D.Three-dimensional simulate-on of nonlinear response of reinforced concrete members subjected to impact-loading[J].ACI Struct J,2000,97(5):689-701.
[4] Noguchi H,Uchida K.Finite element method analysis of hybrid structural frames with reinforced concrete columns and steel-beams[J].Journal of Structural Engineering,2004,130(2):328-335.
[5] Vulcano A,Brtero V,Colotti V.Analytical modeling of RC structural walls[A].In:Proc 9th WCEE[C].Tokyo-Kyoto,1988.812-819.
[6] 刘阳冰,刘晶波.损伤梁单元及其在RC结构构件非线性分析中的应用[J].地震工程与工程振动,2004,24(2):95-100.
　 Liu Yangbing,Liu Jingbo.A damage beam element model for nonlinear analysis of reinforced concrete member[J].Earthquake Engineering and Engineering Vibration,2004,24(2):95-100.(in Chinese)
[7] Kwak H-G,Kim S-P.Nonlinear analysis of RC beam subject to cyclic loading[J].Journal of Structural Engineering,2001,127(12):1436-1444.
[8] Karabinis A I,Kiousis P D.Plasticity model for reinforced concrete elements subjected to overloads[J].Journal of Structural Engineering,2001,127(11):1251-1256.
[9] 王勖成,邵敏.有限单元法基本原理和数值方法[M].北京:清华大学出版社,1995.285-292.
[10] 杨耀铨.跨径25米的装配式后张法预应力混凝土简支梁静载试验小结[R].北京:交通部第二公路勘察设计院,1979.

相似文献/References:

[1]陈建松,陈南,殷国栋,等.考虑非线性特征的4WS车辆滑模鲁棒稳定性控制[J].东南大学学报(自然科学版),2010,40(5):969.[doi:10.3969/j.issn.1001-0505.2010.05.017]
　Chen Jiansong,Chen Nan,Yin Guodong,et al.Sliding-mode robust control for 4WS vehicle based on non-linear characteristic[J].Journal of Southeast University (Natural Science Edition),2010,40(4):969.[doi:10.3969/j.issn.1001-0505.2010.05.017]
[2]于冲,吕剑虹,吴科.ALSTOM气化炉的多模型预测控制[J].东南大学学报(自然科学版),2010,40(4):783.[doi:10.3969/j.issn.1001-0505.2010.04.023]
　Yu Chong,Lü Jianhong,Wu Ke.Multiple model predictive control for ALSTOM gasifier[J].Journal of Southeast University (Natural Science Edition),2010,40(4):783.[doi:10.3969/j.issn.1001-0505.2010.04.023]
[3]田学农,王志功.基于Volterra级数分析的半导体激光器非线性模型[J].东南大学学报(自然科学版),2010,40(2):253.[doi:10.3969/j.issn.1001-0505.2010.02.007]
　Tian Xuenong,Wang Zhigong.Nonlinear model of semiconductor laser diodes based on Volterra series analysis[J].Journal of Southeast University (Natural Science Edition),2010,40(4):253.[doi:10.3969/j.issn.1001-0505.2010.02.007]
[4]张艳,卜浩,王玉娟,等.基于原子力显微镜的纳米尺度摩擦力的速度依赖关系[J].东南大学学报(自然科学版),2012,42(2):286.[doi:10.3969/j.issn.1001-0505.2012.02.018]
　Zhang Yan,Pu Hao,Wang Yujuan,et al.Velocity-dependent nano-scale friction under atomic force microscope[J].Journal of Southeast University (Natural Science Edition),2012,42(4):286.[doi:10.3969/j.issn.1001-0505.2012.02.018]
[5]叶见曙,张剑,黄剑峰.预应力混凝土多T梁桥的极限承载力[J].东南大学学报(自然科学版),2009,39(1):106.[doi:10.3969/j.issn.1001-0505.2009.01.020]
　Ye Jianshu,Zhang Jian,Huang Jianfeng.Analysis of ultimate loads of prestressed concrete multi-T girder bridge[J].Journal of Southeast University (Natural Science Edition),2009,39(4):106.[doi:10.3969/j.issn.1001-0505.2009.01.020]
[6]吴科,吕剑虹,向文国,等.ALSTOM气化炉的分散PID控制[J].东南大学学报(自然科学版),2008,38(4):662.[doi:10.3969/j.issn.1001-0505.2008.04.023]
　Wu Ke,Lü Jianhong,Xiang Wenguo,et al.Decentralized PID control for ALSTOM gasifier[J].Journal of Southeast University (Natural Science Edition),2008,38(4):662.[doi:10.3969/j.issn.1001-0505.2008.04.023]
[7]周臻,孟少平,吴京.一种考虑杆件初始弯曲的非线性杆单元[J].东南大学学报(自然科学版),2007,37(2):201.[doi:10.3969/j.issn.1001-0505.2007.02.005]
　Zhou Zhen,Meng Shaoping,Wu Jing.Nonlinear link element considering member initial curvature[J].Journal of Southeast University (Natural Science Edition),2007,37(4):201.[doi:10.3969/j.issn.1001-0505.2007.02.005]
[8]孙蓓蓓,周长峰,张晓阳,等.工程车辆橡胶悬架系统的非线性动力学特性[J].东南大学学报(自然科学版),2007,37(6):974.[doi:10.3969/j.issn.1001-0505.2007.06.007]
　Sun Beibei,Zhou Changfeng,Zhang Xiaoyang,et al.Nonlinear dynamic characteristics of rubber suspension of construction vehicle[J].Journal of Southeast University (Natural Science Edition),2007,37(4):974.[doi:10.3969/j.issn.1001-0505.2007.06.007]
[9]蒋友宝,冯健,孟少平.求解结构可靠指标的线性可行方向算法[J].东南大学学报(自然科学版),2006,36(2):312.[doi:10.3969/j.issn.1001-0505.2006.02.027]
　Jiang Youbao,Feng Jian,Meng Shaoping.Linear feasible direction algorithm for calculation of reliability index of structure[J].Journal of Southeast University (Natural Science Edition),2006,36(4):312.[doi:10.3969/j.issn.1001-0505.2006.02.027]
[10]许志华,孙蓓蓓,孙庆鸿,等.铰接式自卸车平衡悬架系统橡胶弹簧刚度的非线性特性分析与优化[J].东南大学学报(自然科学版),2005,35(2):226.[doi:10.3969/j.issn.1001-0505.2005.02.014]
　Xu Zhihua,Sun Beibei,Sun Qinghong,et al.Non-linear stiffness analysis and optimization of rubber spring of articulated dump truck balanced suspension[J].Journal of Southeast University (Natural Science Edition),2005,35(4):226.[doi:10.3969/j.issn.1001-0505.2005.02.014]

备注/Memo

备注/Memo:
基金项目: 江苏省交通科学研究资助项目(04Y051).
作者简介: 张峰(1978—),男,博士生; 叶见曙(联系人),男,教授,博士生导师,yejianshu@seu.edu.cn.
更新日期/Last Update: 2005-07-20