5TH International Congress on Technology - Engineering & Science - Kuala Lumpur - Malaysia (2018-02-01)

Numerical Modeling Of Mechanical Behavior Concrete Slabs Reinforced By Frp Materials

This paper investigates and analyze the finite elements of FRP sheets reinforced slabs. This paper examines the analysis results of finite element method used to increase the flexural strength of reinforced concrete slabs that their tensile surface wasenhanced using CFRP sheets, in a 3D and non-linear manner. For this purpose, two groups of reinforced concrete slabs were modelled in ABAQUS software. Group B are those slabs having similar dimension and size to group A, i.e. thickness of 15 cm and length and width of 100 and 90, respectively, except that it has lower percentage of rebar. These slabs have been investigated through various methods such as changes in the thickness of concrete slab, changes in the thickness of CFRP sheets, changes in the dimensions of CFRP sheets and changes in the layout of CFRP. Later, structure responses including resistant and vertical displacement were investigated. Finally, results indicated that maximum increase in strength of a slab covered by CFRP sheets with 0.167 mm thickness equals to 363.117 and 358.867 kN for groups of A and B, respectively. In the maximum case, a decrease in vertical displacement of slab with said properties was observed and there was a 43 percent decrease in group A compared to group B. the best layout result s in two groups of A and B performed in a whole composite sheet were 347.854 and 332.244 kN, respectively
Amir Sharif, S.M Mirhosseini, Ehsanollah Zeighami