Search

Your search keyword '"Abed, Huda Saad"' showing total 6 results
Start Over Author "Abed, Huda Saad"
6 results on '"Abed, Huda Saad"'

5. Nonlinear finite element Analysis of laterally loaded piles in Layered Soils.

Author

Saeed, Haitham H. and Abed, Huda Saad

Subjects
SOILS, PILES & pile driving, STRUCTURAL engineering, FINITE element method, NONLINEAR analysis
Abstract

This work is based on Winkler's theory to analyze laterally loaded single piles using the finite element method. Soil nonlinearity is considered via nonlinear springs "p-y" curves. Exact element displacement shape functions and stiffness matrix are used for the element in the case of linear Winkler's modulus of subgrade reaction. In the nonlinear stage, an averaging technique for the element secant Winkler modulus is used to calculate the shape functions and stiffness matrix. An iterative technique is used to consider the nonlinearity of the soil. Few elements are required to simulate the pile efficiently. Unlike other analytical methods, the current method can be used to analyze piles with any load-transfer curves with arbitrary variation with depth. [ABSTRACT FROM AUTHOR]

Published
2023
Full Text
View/download PDF

6. Enhancement of bonding efficiency between overlay and substrate concrete using Styrene-Butadiene Rubber Latex and different surface roughness methods

Author

Khaleel, Ban Ahmed, Abed, Jasim Mohammed, and Abed, Huda Saad

Subjects
repaired concrete, substrate surface roughness, flexural strength, lcsh:T, lcsh:Technology (General), slant shear strength, lcsh:T1-995, lcsh:Technology, cement-sbr mortar, splitting strength
Abstract

The present study aims to accurately assess the binding efficiency between the substrate and the overlay using Styrene-Butadiene Rubber Latex (SBR) and ordinary Portland cement as a bonding mortar. Four different roughening techniques for the substrate surface were compared: surface roughening with a steel wire brush;, surface roughening by scarifying double parallel grooves in one direction; surface roughening by scarifying double parallel grooves in two directions; and surface roughening by scarifying double parallel grooves in one direction, drilling the substrate, and fixing screws in the double grooves. A total of 24 repaired prism specimens were tested for flexural strength with 45° and 90° angles between overlay and substrate. The cylinder specimens were also tested for splitting tensile strength and for slant shear strength at a 30° angle between overlay and substrate. The repaired specimens were cured at 23±2°C for 28 days before the flexural, splitting, and slant shear strength tests were performed. The experimental tests indicated that the best bonding strength was obtained in flexural strength tests when the surfaces were roughened by scarifying, carefully drilling the substrate, and fixing screws in the double grooves at a 45° angle between overlay and substrate.

Published
2021

Catalog

Books, media, physical & digital resources
See catalog results