Experimental Study of Shear Failure of Damaged RC Beam Strengthened with GFRP
Antecedents of Variations in Construction Contracts - A Statistical Correlational Study
Dynamic Response of Footbridge Decks
Urban Green Spaces and their Role in Enhancing Quality of Life
Parametric Study on Structural Behaviour of RCC Box Culvert
Study on Strength Properties of Lightweight Expanded Clay Aggregate Concrete
A Step By Step Illustrative Procedure to Perform Isogeometric Analysis and Find the Nodal Displacements for a Two Dimensional Plate Structure
Lateral - Torsional Buckling of Various Steel Trusses
Comparative Study on Methodology of Neo-Deterministic Seismic Hazard Analysis Over DSHA and PSHA
A Step by Step Procedure to Perform Isogeometric Analysis of Beam and Bar Problems in Civil Engineering Including Sizing Optimisation of a Beam
Investigation on the Properties of Non Conventional Bricks
Analysis on Strength and Fly Ash Effect of Roller Compacted Concrete Pavement using M-Sand
Investigation on Pozzolanic Effect of Mineral Admixtures in Roller Compacted Concrete Pavement
Effect of Symmetrical Floor Plan Shapes with Re-Entrant Corners on Seismic Behavior of RC Buildings
Effect of Relative Stiffness of Beam and Column on the Shear Lag Phenomenon in Tubular Buildings
The beam-column joint is a critical component of reinforced concrete buildings, responsible for effectively transferring loads between connected members while withstanding gravity and seismic forces. However, these joints are often the weakest link in the structure due to insufficient shear strength. To ensure structural integrity, Carbon Fiber Reinforced Polymer (CFRP) materials are widely utilized for retrofitting beam-column joints. CFRP offers high strength, stiffness, and corrosion resistance without significantly increasing the joint's dimensions. ANSYS Workbench is a powerful software tool that enables detailed analysis and design of beam-column joints. By providing advanced simulation capabilities, it reduces the necessity for physical testing and streamlines the retrofitting process, thereby enhancing project efficiency and cost-effectiveness. This study focuses on the analysis and retrofitting of beam-column joints using CFRP materials in ANSYS Workbench, specifically in the 2022 R2 Student and 2022 R1 Teaching versions. The findings of this study reveal significant improvements in the retrofitted beam-column joints compared to their original condition. Notably, the use of CFRP wrapping reduces deformation and increases the maximum principal stress in various reinforcement patterns. The study also includes a comparison between manual and analytical results, further validating the effectiveness of the retrofitting approach using CFRP materials.
The work studied the use of special concrete, specifically lightweight concrete, by incorporating pumice as a natural aggregate. One significant disadvantage of nominal concrete is its high dead load, or self-weight, which makes it economically inefficient as a structural material. In contrast, lightweight concrete, with its low density, offers advantages such as reduced dead loads and improved thermal insulation. This reduced density is achieved by partially replacing the coarse aggregate with pumice in the concrete mix. The investigation aimed to compare nominal concrete with lightweight concrete using grade M20. The lightweight concrete was created by replacing different proportions of the coarse aggregate with pumice, ranging from 0%, 20%, 40%, and 60%. The objective of the work was to determine the compressive strength and split tensile strength of the lightweight concrete. The results were then compared with those of conventional concrete to identify the optimal percentage of replacement that provides better strength and meets the structural recommendations. The work aimed to explore the benefits of using lightweight concrete with pumice as a replacement material, assess its strength characteristics, and determine the most favorable replacement percentage for achieving improved strength and meeting structural requirements.
This research investigates and reports on the usage of plastic granules in place of coarse aggregate while constructing concrete cubes and cylinders. Concrete cubes and cylinders made of plastic granules were hand cast, and the concrete's strength was then empirically assessed in terms of split tension and compression. It has been discovered that the compression and split tension strengths of plastic-replaced concrete can be on par with those of ordinary concrete. The current analysis focuses on concrete mixes that have plastic granules (0%, 5%, 10%, 15%, 20%, and 25%) partially replacing the coarse aggregate, which will help reduce the structure's dead weight. This mix, in the form of cubes and cylinders, was subjected to compression and split tension to ascertain the strength parameter. Therefore, using plastic granules for creating concrete is not only advantageous but also useful for getting rid of plastic trash.
Green concrete is a sustainable and eco-friendly solution as a building material. Conventional concrete releases huge volumes of carbon dioxide, which leads to environmental pollution. In green concrete, cement is partially replaced with by-products of the industrial production process of other materials or recycled waste. This study investigates the mechanical and physical properties of green concrete based on the partial replacement of cement with Ground Granulated Blast Furnace Slag (GGBS) and fine aggregates with bagasse ash. A series of trial mixes were conducted to determine the optimal mix design for the green concrete, and a sufficient number of samples were prepared and tested for various properties, including compressive strength, tensile strength, flexural strength, water absorption, and porosity. The results indicate that the green concrete containing GGBS and bagasse ash as partial replacements for cement and fine aggregates, respectively, exhibited comparable or even higher compressive strengths than traditional concrete. The green concrete also exhibited lower water absorption and porosity, indicating improved durability. The findings suggest that green concrete based on GGBS and bagasse ash has significant potential as a sustainable building material.
This paper explores the development and utilization of bio-based lightweight building blocks as a sustainable solution in the construction industry. With increasing concerns about the environmental impact of traditional building materials, there is a growing need for eco-friendly alternatives. This study investigates the potential of natural and renewable materials, such as agricultural waste fibers, bamboo, or hemp, in combination with binders to create lightweight building blocks that offer both structural integrity and environmental sustainability. The research focuses on the formulation of these blocks, considering the optimal combination of bio-based materials and binders to achieve the desired properties. The performance characteristics of the bio-based lightweight building blocks, including structural strength, thermal insulation, fire resistance, and durability, are evaluated. The study also highlights the contribution of these blocks to sustainable construction practices, such as reducing carbon footprints and promoting resource efficiency. By providing an overview of the existing research in this field, the paper discusses the benefits and challenges associated with bio-based lightweight building blocks exploring economic feasibility, availability of materials, and compatibility with existing construction practices. Furthermore, the paper suggests avenues for future research, emphasizing the need for standardized testing protocols, certification systems, and a wider implementation of bio-based lightweight building blocks in the construction industry. This study sheds light on the potential of bio-based lightweight building blocks to mitigate environmental impact, improve sustainability, and drive innovation in construction practices.
