BP Neural Network-Based Prediction of Load-Bearing Capacity of Concrete Column Reinforced by FRP
-
摘要: 为提高纤维增强复合材料(FRP)加固混凝土轴压柱承载力的计算精度,建立了FRP加固混凝土轴压柱承载力的BP神经网络预测模型.利用大量试验数据对神经网络模型进行训练,并用训练成熟的神经网络模型对FRP加固混凝土轴压柱的承载力进行了预测.通过模型预测值与试验结果的比较,证明该模型的预测结果具有一定的可信度,最大误差不超过15%,比其他计算模型的精度高.
-
关键词:
- 纤维增强复合材料(FRP) /
- 混凝土柱 /
- 轴压 /
- 承载力 /
- 神经网络
Abstract: In order to enhance the calculation accuracy of concrete columns reinforced by FRP(fiber reinforced polymer) under axial compression,a BP(back propagation) neural network model was established to predict the load-bearing capacity of a concrete column reinforced by FRP under axial compression.The BP neural network model was trained by volume test data,and using the trained model,the load-bearing capacity of concrete columns reinforced by FRP was predicted.A comparison between the predicted and experimental results shows that the BP neural network model can consider more affecting factors and is reliable.Moreover,its maximum error is less than 15%,and its precision is higher than other models.-
Key words:
- fiber reinforced polymer /
- concrete column /
- axial compression /
- load-bearing capacity /
- neural network
-
范颖芳,周晶.受腐蚀钢筋混凝土梁极限承载力神经网络预测[J].大连理工大学学报,2003,43(3):349-353.FAN Yingfang,ZHOU Jing.Prediction on ultimate load bearing capacity of corroded reinforced concrete beams using neural networks[J].Journal of Dalian University of Technology,2003,43 (3):349-353.[2] 陈适才,王天稳.应用神经网络方法对粘钢加固钢筋混凝土梁的承载力预测[J].建筑技术,2004,35(6):419-420.CHEN Shicai,WANG Tianwen.Forecast on beating capacity of binding steel reinforced concrete beam based on nerve network method[J].Architecture Technology,2004,35 (6):419-420.[3] 杨勇新,王敬,岳清瑞,等.基于神经网络方法的碳纤维布加固混凝土梁承载力计算[J].工业建筑,2002,32(4):349-353.YANG Yongxin,WANG Jing,YUE Qingrui,et al.Bearing capacity of RC beams strengthened with carbon fiber sheets based on neural network algorithms[J].Industrial Architecture,2002,32(4):349-353.[4] 杨勇新.预应力CFRP加固RC梁承载力的神经网络预测[J].华侨大学学报:自然科学版,2007,28(3):304-307.YANG Yongxin.Neural network prediction of bearing capacity of RC beams strengthened with prestressed CFRP sheets[J].Journal of Huaqiao University:Natural Science Edition,2007,28(3):304-307.[5] RUMELHART D E,MCCLELLAND J L.Parallel distributed processing---Volume 1:Foundations[M].Cambridge:MIT Press,1986:148-157.[6] KSKIRSAGAR S,LOPEZ A R A,GUPTA R K.Environmental aging of fibre-reinforced polymer-wrapped concrete cylinders[J].ACI Material Journal,2000,97(6):703-712.[7] ROCHE-TIE P,LABOSSIERE P.Axial testing of rectangular column models confined with composites[J].Journal of Composites for Construction,2000,4(3):129-136.[8] ZHANG S,YE L,MAI Y W.A study on polymer composites strengthening systems for concrete colunms[J].Application of Composites Material,2000,7(3):125-138.[9] XIAO Y,WU H.Compressive behavior of concrete confined by carbon fiber composite jackets[J].Journal of Material in Civil Engineering,2000,12(2):139-146.[10] 敬登虎.GFRP组合RC柱轴心受压的试验研究与分析[D].重庆:重庆大学土木工程学院,2003.[11] 潘毅.短期和长期负载下FRP约束混凝土应力一应变模型的理论分析与试验研究[D].南京:东南大学土木工程学院,2008.[12] LAM L,TENG J G.Strength models for fiber-reinforced plastic-confined concrete[J].Journal of Structure Engineering,2002,128(5):612-623.
点击查看大图
计量
- 文章访问数: 1654
- HTML全文浏览量: 90
- PDF下载量: 397
- 被引次数: 0