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Concentric Compressive Performance of Precast Concrete Filled Steel Tube with Intermediate Construction Connection Made of High-Performance Concretes
Faculty
Engineering
Year:
2025
Type of Publication:
ZU Hosted
Pages:
Authors:
Mohammed Reda Ali Elewa
Staff Zu Site
Abstract In Staff Site
Journal:
International Journal of Concrete Structures and Materials Springer Nature
Volume:
19
Keywords :
Concentric Compressive Performance , Precast Concrete Filled
Abstract:
Precast concrete-filled steel tubular (CFST) circular columns assembled with connecting joints are commonly employed in building structures. However, there is a lack of research regarding the behavior of precast CFST columns that are connected with construction joints made of high-performance concrete (HPC), such as engineered cementitious composites (ECC) as well as high-strength fiber-reinforced concrete (HSFRC). This paper presents an experimental investigation of precast CFST circular columns subjected to axial loads, tubed with galvanized steel sheets (GSS) and connected with joints made of ECC, HSFRC and normal concrete (NC). Ten slender columns are tested until collapse. The primary studied parameters include the development length along with the connection concrete type. The experimental results reveal that an increase in the development length of the reinforcement, i.e., the length of the connecting concrete joint significantly enhances both the cracking and the load-bearing capacity of slender CFST precast columns that are connected with an intermediate concrete joint. Moreover, the combination of GSS tubes with ECC and HSFRC joints markedly enhances the ultimate load, demonstrating an impressive increase of 115% and 247%, respectively, over the precast NC control column. In addition, three-dimensional nonlinear finite element modeling is performed considering the initially existing imperfection within the precast CFST columns which is validated against the experimentally obtained data. These models are utilized to further investigate parameters, such as GSS thickness and longitudinal reinforcement ratio.
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
Nagwa Ragab Mahmoud Elsakhawy, "Enhancing Behavior of Soil-Steel Culvert with Geogrids", Fifteenth International Conference on Structural and Geotechnical Engineering, Cairo, Egypt., 2018
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Ahmed Samir Abdallah Eisa, "Experimental Investigation of Pre-Cracking Behavior of Reinforced Concrete Beams with and without Steel Fiber", IJTRD, 2020
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Mahmoud Tolba Mohamed Tolba Nawar , "Modeling and testing of laminated curtain wall systems under blast loading", American Society of Civil Engineers (ASCE, 2013
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