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Structural behavior of Lightweight and High strength Layered Hollow Core Slabs
Faculty
Engineering
Year:
2023
Type of Publication:
ZU Hosted
Pages:
Authors:
Ahmed Samir Abdallah Eisa
Staff Zu Site
Abstract In Staff Site
Journal:
Fracture and Structural Integrity Italian Group of Fracture
Volume:
63
Keywords :
Structural behavior , Lightweight , High strength Layered Hollow
Abstract:
A new technique of Layered Hollow Core Slab (LHCS) has been used to obtain a slab with an optimum weight-to-strength ratio. Specimens with a 90 mm top layer of High Strength Concrete (HSC) and a 90 mm bottom layer of Lightweight Aggregate Concrete (LWAC) were examined. Nine full scale slabs with dimensions of 1600* 450* 180 mm were tested under a 4- point loading test. The %core, a/d, RFT ratio, and connection method were the different studied parameters. A push-out test was conducted on triplet specimens to study the bond strength at the interface between HSC jacket and LWAC cubes using bond agent material or shear dowels, or without treatment, to determine which method of them is suitable for connecting the two layers of the tested slabs. Load, deflection, ductility, strain, crack pattern, and mode of failure were studied. The results indicate that ultimate strength is enhanced with decreasing a/d and %core and with an increasing RFT ratio of the LHCS specimens. Using shear dowels ensures an efficient bond between the two layers of the tested slabs. ANSYS program used for modelling the slab. The numerical study accepted the experimental data with a variation of less than 10% for all slabs
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Elsayed saad Abdelsalam Salman, "S. Abdel Salam and M. Mashhour, “EFFECT OF FOOTING DIMENSIONS ON THE CONTACT PRESSURE AND INTERNAL STRESSES FOR A STRIP FOOTING” 24 Journal of Egyptian Society of Engineers, No.1, Vol.:P9-14,", 24 Journal of Egyptian Society of Engineers, No.1, Vol.:P9-14,, 1985
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Hesham Mohamed Fawzy Ibrahiem Shaban , "Behavior of Continuous Steel-Concrete Composite Beams Reinforced with CFRP sheets", Conference: American Society for Composites—Thirty-Second Technical Conference on Composite MaterialsAt: Purdue University, West Lafayette, Indiana, 2017
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Mohammed Reda Ali Elewa, "Experimental Investigation of Both SCC and Rubberized Concrete Beams with Vertical Openings", Springer Nature, 2025
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