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Impact of various dowel bars techniques in joints of plain concrete connected rigid pavements: Experimental and numerical investigations
Faculty
Engineering
Year:
2025
Type of Publication:
ZU Hosted
Pages:
Authors:
Mohammed Reda Ali Elewa
Staff Zu Site
Abstract In Staff Site
Journal:
Results in Engineering Elsevier
Volume:
25
Keywords :
Impact , various dowel bars techniques , joints
Abstract:
This study investigates the effectiveness of different dowel bar techniques in enhancing the performance of joints connecting concrete slabs in jointed plain concrete pavement. Eighteen specimens were divided into three groups to explore the influence of various factors including dowel embedment length (100 mm, 150 mm, and 200 mm) on joint behavior, dowel anchors provided to the ends of the dowels, and the effect of incorporating strain- hardening cementitious composites in the middle slab on joint performance. Results revealed that increasing dowel length improved load transfer efficiency and resulted in more favorable crack patterns, while end anchors further enhanced crack distribution by preventing debonding between the dowel and concrete. Longer dowels increased ultimate load capacity by 38 %. This increase was 30 %, and 10 %, for specimens with end anchors and strain-hardening cementitious composites, respectively. Both longer dowels and strain-hardening cementitious composites significantly enhanced energy absorption capacity. Finally, a finite element model developed to simulate the behavior of the tested specimens showed good agreement with the experimental data. Based on the finite element results, increasing the base layer thickness, using advanced concrete materials like strain- hardening cementitious composites, or incorporating anchors can significantly enhance the structural performance of jointed plain concrete pavement.
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Mohammed Reda Ali Elewa, "Flexural response and load capacity of reinforced concrete beams strengthened with reinforced mortar layer", Elsevier, 2021
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Mohammed Reda Ali Elewa, "Behavior of ECC columns confined using steel wire mesh under axial loading", Elsevier, 2021
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Mohammed Reda Ali Elewa, "Effect of Cement Alternative on the Mechanical Properties of Self Compacting Concrete Using Variable Aggregate Types", Faculty of Engineering - Zagazig University, 2011
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Mohammed Reda Ali Elewa, "Effect of sustained loading and environmental conditions on the creep behavior of an epoxy adhesive for concrete structures strengthened with CFRP laminates", elsevier, 2017
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Department Related Publications
Eshak Ibrahiem Eshak Hana, "Dynamic Effect of Trains on Multispan Railway Bridges", لايوجد, 1900
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Eshak Ibrahiem Eshak Hana, "A Robust Nonlinear Mathematical Programming Model for Design of Laterally Loaded Orthotropic Steel Plates", Structural Engineering and Mechanics, Vol.14, No.2 (2002) 223-236, Techno-Press, Korea., 2002
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Eshak Ibrahiem Eshak Hana, "Effect of Temperature Variation on Bridges due to Locking of Movable Bearings and Expansion Joints", 1st Eng. Conference, Engineering Between Theory and Practice, Assuit Univ., Faculty of Eng., Egypt, 7-8 May 2007., 2007
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Eshak Ibrahiem Eshak Hana, "Effect of Partial Fixity of Bearings on the Structural Behaviour of Bridges", The 13th International Conference on Civil, Structural and Environmental Engineering computing, Greece, 6-9 Sept. 2011., 2011
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