A Significance Analysis of Influence Factors on Carbon Fiber Heating Wire Concrete Pavement Slab Temperature Rising
ZHANG Chujie
XU Wei
CAI Liangcai
LI Chunming
Abstract：The temperature rising rate of carbon fiber reinforced concrete pavement slab has relations with many factors .In order to study the significance of influence of three factors,i .e .the working current in-tensity,the heating wire buried depth and spacing,on the temperature rising rate of the concrete,this pa-per uses ANSYS to modeling to test and obtains data by adopting orthogonal method and response surface methodology to analyze,and uses field test to verify .The F value of buried depth,spacing and tempera-ture obtained by orthogonal method is respectively 13.634,25.605 and 14.431 .The P value of three fac-tors obtained by response surface methodology is respectively 0.0375,0.0126 and 0.0150 .The analysis show s that these three factors have a significant effect on the temperature rising rate of concrete,and the order is B heating wire spacing> C working current intensity> A heating wire buried depth .The fitting equation of temperature rising rate obtained by DX is :α=2.73 -0.077A -0.099B+0.096C+0.008AB+0.013AC+0.01BC-0.097A2 +0.028B2 -0.063C2,thus it can also be obtained that the spacing of heating wire is 80 mm,buried depth is 50~90 mm,working current intensity is 0.5~1.0 A,and the temperature rising rate meets the requirements of pavement slab deicing and snow melting .
Keywords：simulation testorthogonal methodresponse surface methodologytemperature rise ratecarbon fiber wireconcrete pavement slab
Publication Date：2017-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：6( 55-60 )