Enhancement of flat flabs' shear resistance using gabion mesh

Inhaltsverzeichnis (Table of Contents)

• Chapter-1:-Introduction
• 1.1. The background
• 1.2. Statement of the problem
• 1.3. Objective of the study
• 1.4. Scope of the study
• Chapter-2:-LITERATURE REVIEW
• 2.1. Introduction
• 2.2. Behavior of slabs falling by punching
• 2.3. Enhancing the punching shear strength of flat slabs
• Chapter-3:- FINITE ELEMENT MODELING AND METHODS
• 3.1. Overview of abaqus
• 3.2. Material modeling
• 3.3. Selected geometry and modeling of flat slab
• 3.4. Material properties
• 3.5. Interaction
• 3.6. Element type selection
• 3.7. Loading and boundary condition
• 3.8. Mesh convergence
• Chapter 4:- RESULTS AND DISCUSSIONS
• 4.1. Introduction
• 4.2. Ultimate load capacity
• 4.3. Effect of gabion arrangements and their ultimate load prediction
• 4.4. Load-deflection relationships
• 4.5. Failure mode and failure location
• 4.6 Effect of gabion for flexural resistance
• 4.7 Effect of column size on percentage enhancement of gabion for punching
• 4.8 Effect of thickness of slab on punching resistance
• 4.9 Effect of drop panel for punching resistance
• 4.10 Comparison of Numerical Results with euro Code Provision
• Chapter:-5-Conclusion and recommendation
• 5.1. Conclusion
• 5.2. Recommendations

Zielsetzung und Themenschwerpunkte (Objectives and Key Themes)

This thesis aims to investigate the enhancement of flat slabs' punching shear resistance using gabion mesh. The study utilizes finite element modeling to evaluate the effectiveness of gabion mesh in improving the load-carrying capacity of flat slabs under punching shear stress. The analysis focuses on determining the optimal arrangement and configuration of gabion mesh for maximum shear strength enhancement.

• Punching shear resistance of flat slabs
• Finite element modeling of flat slabs with gabion mesh
• Optimal arrangement and configuration of gabion mesh
• Load-carrying capacity enhancement of flat slabs
• Failure modes and failure location under punching shear

Zusammenfassung der Kapitel (Chapter Summaries)

• Chapter 1 provides an introduction to the research, outlining the background, statement of the problem, objectives, and scope of the study. It emphasizes the importance of enhancing punching shear resistance in flat slabs, particularly in the context of modern construction.
• Chapter 2 delves into a comprehensive literature review, discussing the behavior of slabs under punching shear, existing methods for enhancing punching shear strength, and previous research on the application of gabion mesh in concrete structures. It examines the advantages and limitations of various approaches, setting the stage for the current study.
• Chapter 3 describes the finite element modeling methodology employed in the research. It introduces the software used (Abaqus) and outlines the material modeling, geometry selection, material properties, and interaction definitions for both the flat slab and the gabion mesh. It also discusses element type selection, loading and boundary conditions, and mesh convergence strategies.
• Chapter 4 presents the results and discussions of the numerical analysis. It analyzes the ultimate load capacity of the flat slab with and without gabion mesh, examines the effect of different gabion arrangements on load prediction, and investigates load-deflection relationships. It also explores the failure mode and failure location, analyzes the effect of gabion mesh on flexural resistance, and examines the influence of column size, slab thickness, and drop panels on punching resistance. Finally, the chapter compares the numerical findings with Eurocode provisions.

Schlüsselwörter (Keywords)

The primary focus of this thesis is on the enhancement of punching shear resistance in flat slabs using gabion mesh. This involves the use of finite element modeling to investigate the effectiveness of gabion mesh in increasing the load-carrying capacity of flat slabs. The research examines various factors including optimal arrangement of gabion mesh, load-deflection relationships, failure modes, and comparison with Eurocode provisions.