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Concentric compressive behavior of hybrid concrete–Stainless Steel Double-Skin Tubular Columns incorporating High Performance Concretes
Faculty
Engineering
Year:
2020
Type of Publication:
ZU Hosted
Pages:
Authors:
Mohammed Reda Ali Elewa
Staff Zu Site
Abstract In Staff Site
Journal:
Thin-Walled Structures Elsevier
Volume:
Keywords :
Concentric compressive behavior , hybrid concrete–Stainless Steel
Abstract:
This paper investigates experimentally and numerically concentric compressive behavior of hybrid concrete–Stainless Steel (SS) Double-Skin Tubular Columns (DSTCs) employing High Performance Concretes (HPCs). DSTCs can be prefabricated using outer-and-inner double tubes positioned concentrically sandwiching the concrete core in-between. However, the ordinary steel tubes beside the poor mechanical properties of Normal Concrete (NC) may not be appropriate for the environmental attack. This research proposes employing two durable SS tubes sandwiching HPCs in-between to gain satisfied performance. Beside NC, three types of HPCs were suggested: Engineered-Cementitious Composites (ECC), High-Strength Fiber-Reinforced Concrete (HSFRC) and High-Strength Concrete (HSC). Forty specimens were tested experimentally under axial monotonic compressive loading up to failure. The main variables were: void ratio created by inner tube, concrete core type and vertical stiffeners embedded in the concrete core. Parallel to those implemented experimentally, nonlinear three-dimensional Finite Element Models (FEMs) were set-up, executed and validated against experimental outcomes generating an accepted model with about 6% error. Results revealed that the studied parameters could significantly enhance the behavior in terms of load–displacement response, elastic/plastic appearance, ultimate capacity, and capturing ductile failure mode. Finally, both experimental and numerical results were extended deriving new formula could estimate the ultimate capacity with difference about 12%.
Author Related Publications
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, "Experimental and theoretical study on the compressive strength of the high strength concrete incorporating steel fiber and metakaolin", 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
Elsayed saad Abdelsalam Salman, "S. Abdel Salam, A. Akl, O. Shallan, “DYNAMIC ANALYSIS OF TUNNEL”, Proceedings of the International Congress on Tunneling and ground Conditions, 3-7 April 1994, national Authority for Tunnels, Cairo, Egypt.", Proceedings of the International Congress on Tunneling and ground Conditions national Authority for Tunnels, Cairo, Egypt., 1994
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Mohamed Salah Amin Abdelaal, "Ultrasonic characterization of expanded polystyrene used for shallow tunnels under seismic excitation", journal homepage: www.sciencedirect.com, 2022
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Hanaa Alsayed Elsayed Abdelmoteleb, "Ultrasonic characterization of expanded polystyrene used for shallow tunnels under seismic excitation", journal homepage: www.sciencedirect.com, 2022
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Alaa Abdelhamied Ali Ata, "Numerical analysis of underground tunnels subjected to surface blast loads", Frattura ed Integrità Strutturale, 2021
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