کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
258426 503617 2013 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Analytical, numerical and experimental investigations on flexural strengthening for wood/PVC composite members using flat bar strips
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی عمران و سازه
پیش نمایش صفحه اول مقاله
Analytical, numerical and experimental investigations on flexural strengthening for wood/PVC composite members using flat bar strips
چکیده انگلیسی

This paper investigates the flexural performances of strengthened wood/PVC (WPVC) composite members using a high carbon steel (HCS) flat bar strip adhered to the tension side and a carbon steel (CS) flat bar strip attached to the compression side. The analytical models, numerical results of finite element analysis (FEA), and experimental investigation are studied. The stress–strain relationship to represent material models for WPVC, HCS and CS were determined. These material models were applied for analytical solution development and numerical model using FEA program of ABAQUS. Good correlations of analytical, numerical and experimental results were obtained for the members before and after strengthening. The deviations of load at specified displacement of the members before and after strengthening on tension side were in average of 5.6% while the deviations of members strengthening on both tension and compression sides were in average of 5.5%. The ultimate loads increased about 1.93 and 1.64 times for edge-wise and flat-wise loading directions, respectively. For the members strengthening on both the tension and compression sides, numerical and experimental results showed a good correlation while analytical models gave an underestimation. The strengthening of members on both sides can improve significantly the bending stiffness up to 4.53–6.00 times, but the ultimate load increased only in the range of 1.45–2.16 times for the edge-wise and 1.78–1.91 times for the flat-wise loading direction due to debonding effects. The use of analytical models and ABAQUS showed good potential for predicting the flexural behavior of WPVC composite members.


► We focused on the flexural performances of strengthened wood/PVC composite members.
► High carbon steel flat bar strip is adhered to the tension and carbon steel flat bar strip is attached to the compression side.
► The analytical models and numerical results were presented and verified experimentally.
► Good correlations between analytical models and ABAQUS program were obtained.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Construction and Building Materials - Volume 41, April 2013, Pages 545–556
نویسندگان
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