Evaluation of Load-Transfer Efficiency of Steel Mesh Reinforced Contraction Joints in Concrete Pavement: Accelerated Pavement Test and FE Analysis

Authors : Muhammet ÇELİK, Mehmet Tevfik SEFEROĞLU, Muhammet Vefa AKPINAR, Mohammad Manzoor NASERY, Ayşegül Güneş SEFEROĞLU

Pages : 11337-11359

Doi:10.18400/tekderg.643027

View : 7 | Download : 2

Publication Date : 2021-11-01

Article Type : Research Paper

Abstract :Transverse contraction joints are by far the most common type of joint in jointed plain concrete pavements. Early loading of contraction joints can create a weakened vertical plane and later grow as a full-depth crack. In this study, load transfer efficiency insert ignore into journalissuearticles values(LTE); of steel mesh reinforced transverse contraction joints were studied at accelerated pavement tests insert ignore into journalissuearticles values(APT);. 3D finite element insert ignore into journalissuearticles values(FE); model of jointed plain concrete pavement insert ignore into journalissuearticles values(JPCP); was developed to study deflections and crack propagation in just under the joint of the concrete pavement. The APT tests were focused on the LTE values before and after the crack initiation under the contraction joint region. Experiments were performed on three slabs in which two of these slabs were prepared without reinforcement and one of them was reinforced with steel mesh. Data generated by APT was used for verification of crack propagation modeling in the finite element analysis. Steel mesh reinforced slab gave the lowest vertical deflections insert ignore into journalissuearticles values(51μm); and highest LTE insert ignore into journalissuearticles values(91.56%);. The LTE value in the reinforced slab after 25,000 passes was 13.63% higher than the average of unreinforced slabs. The findings suggest that the load transfer efficiency was found to be a complex parameter and should be interpreted together with average displacement values when contraction joints are evaluated at early traffic loadings.
Keywords : Accelerated pavement test, finite element analysis, concrete pavement, transverse contraction joint, steel mesh reinforcement