|
OALib Journal期刊
ISSN: 2333-9721
费用：99美元
|
|
|
|
桥用无粘结预应力混凝土T梁非线性有限元分析与试验研究
Keywords: 桥梁,无粘结预应力筋,T形梁,非线性,有限元
Abstract:
为研究桥用无粘结预应力混凝土梁的荷载-变形特性,用平面应力等参元建立了直线配索无粘结预应力混凝土T形截面简支梁的有限元模型,混凝土和钢筋分别采用了Ottosen屈服准则和Von-Mises屈服准则的弹性-完全塑性本构关系,无粘结预应力钢束简化为随加载过程不断更新的外力边界条件;用弥散式裂缝模型模拟了混凝土的开裂并用Euler-Newton迭代法求解每个增量荷载步的有限元方程。用计算跨径为4200mm的简支试验梁进行两集中力三分点加载的试验对有限元模型进行验证,所建有限元模型可有效地分析出结构开裂和普通钢筋屈服等荷载-挠度曲线特征,与试验结果较为吻合,具有实用意义。
| [1] | 王丽荣.无粘结预应力混凝土简支梁的极限强度分析及试验研究
|
| [2] | [D].哈尔滨:哈尔滨工业大学,2001.
|
| [3] | MAKOTO KAWAKAMI,TADAHIKO ITO.Nonlinear finite element analysis of prestressed concrete members using ADINA
|
| [4] | FRANCOIS BUYLE-BODIN,EMMANUELLE DAVID,ERIC RAGNEAU.Finite element modeling of flexural behaviour of externally bonded CFRP reinforced concrete structures
|
| [5] | [J].土木工程学报,2003,36(12):31-38.
|
| [6] | 陈惠发,A F 萨里普.土木工程材料的本构方程
|
| [7] | [M].余天庆,王勋文译.武汉:华中科技大学出版社,2001.
|
| [8] | [M].北京:清华大学出版社,1993.
|
| [9] | [J].Computers and Structures,2003,81:727-734.
|
| [10] | S K PADMARAJAIAH,ANANTH RAMASWAMY.A finite element assessment of flexural strength of prestressed concrete beams with fiber reinforcement
|
| [11] | [J].Cement & Concrete Composites,2002,24:229-241.
|
| [12] | [J].Engineering Structures,2002,24:1 423-1 429.
|
| [13] | 程晓东,叶贵如,程莉莎.方钢管混凝土偏压柱非线性屈曲承载力的有限元分析
|
| [14] | J C GALVEZ,J CERVENKA,D A CENDON,V SAOUMA.A discrete crack approach to normal/shear cracking of concrete
|
| [15] | [J].Cement and Concrete Research,2002,32:1 567-1 585.
|
| [16] | M V K V PRASAD,C S KRISHNAMOORTHY.Computational model for discrete crack growth in plain and reinforced concrete
|
| [17] | [J].Computer Methods on Applied Mechanics and Engineering,2002,191:2 699-2 725.
|
| [18] | 沈聚敏,王传志,江见鲸.钢筋混凝土有限元与板壳极限分析
|
Full-Text
|
|
Contact Us
service@oalib.com QQ:3279437679 
WhatsApp +8615387084133
|
|
