Browsing by Author "Tukashaba, Shafan"

Now showing 1 - 7 of 7
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    Addressing Differential Axial Deformation Effect and Sway in 3D Building Frame Analysis
    (East African Nature and Science Organization, 2024-05-01) Tukashaba, Shafan
    The Differential Axial Deformation Effect (DADE) is a significant consideration in the 3D analysis of building frames, where elements like columns and walls experience compression forces leading to differential shortening. Traditional design methods often overlook DADE, yet the existing building stock seems serviceable despite this omission. However, modern 3D analysis inherently introduces DADE, prompting designers to seek methods to approximate traditional design forces while utilizing advanced analysis techniques. The aim is to achieve design forces close to those historically used, ensuring structural integrity without disregarding DADE entirely. The methods outlined in this report demonstrate how to reconcile 3D analysis results with traditional design principles while also addressing concerns about sway deflections and the need for a conservative approach. While there's a debate about the economic viability of designing for a wider envelope of design conditions, the report illustrates that the additional reinforcement needed is typically minimal. Notably, the DADE phenomenon is universal across Finite Element Method (FEM) analysis software, and the strategies discussed here can be applied across different platforms. The notion that staged construction analysis effortlessly resolves DADE issues is debunked. Staged construction analysis is complex, doesn't fully eliminate DADE, and can yield unreliable results if not used carefully. In summary, this report offers practical insights into navigating DADE in 3D structural analysis, emphasizing the importance of balancing modern techniques with traditional design considerations
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    Assessing the Environmental Sustainability of UHPC in Modern Construction Practices
    (East African Nature and Science Organization, 2024-05-12) Tukashaba, Shafan
    A comprehensive examination was undertaken to investigate various aspects related to the development and application of Ultra-High-Performance Concrete (UHPC). The research explored eco-friendly approaches, such as incorporating supplementary cementitious materials and nanoparticles, optimizing binder systems, and assessing chemical activators. These modifications improved mechanical properties and reduced environmental impact, including embodied CO2 emissions. Additionally, the utilization of waste materials like CRT glass showed energy savings and reduced emissions. Studies focused on optimizing UHPC mix designs, emphasizing a balance between performance and environmental impact. Techniques like statistical mixture design methods and dynamic testing assessed UHPC's environmental and economic impacts, highlighting significant energy savings and reduced CO2 emissions with waste material recycling. Overall, the research contributes valuable insights into UHPC development and its ecological footprint in construction
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    Comparative Analysis of Performance of Mat Foundations in Non-liquefiable and Liquefiable Soil
    (East African Nature and Science Organization, 2024-06-13) Tukashaba, Shafan; Ping, Yi
    This study investigates the behavior and performance of mat foundations in non-liquefiable and liquefiable soil, aiming to provide insights for engineers under soil liquefaction conditions. Through finite element analyses, the study explores shallow foundation design complexities, assesses the bearing capacities of mat foundations under liquefaction soil characteristics, and offers data-driven design strategies for such conditions. The findings on mat foundations in liquefiable soil reveal that iterative dimension adjustments lead to significant enhancements in bearing capacity, hence exceeding the load-bearing capacity in non-liquefiable soil that is used as benchmark. The modification factors range from 2.4 to 2.6 times the original dimensions verified to be effective. These results emphasize the role of tailored design adjustments and numerical designs in solving diverse soil settings and enhancing structural safety, performance, and integrity in foundation design, especially in challenging soil conditions with liquefaction
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    Design of a Stormwater Management System in Lady Irene Campus
    (East African Nature and Science Organization, 2024-07-08) Tukashaba, Shafan
    This project aimed to design an efficient drainage system for Ndejje University's Lady Irene Campus, addressing issues of erosion and flooding exacerbated by recent construction projects. The goal was to create a hydraulic conveyance system that balances environmental protection with structural integrity and affordability. The project involved field reconnaissance, data collection, and analysis of the campus's landscape, soil types, and development trends to inform the design. Methodologically, the project used GPS surveying to create topographical maps and obtained rainfall data to size drainage facilities using the rational method. The peak runoff was calculated considering land use characteristics, while Manning’s formula was applied to design drainage channels and culverts. The design aimed to ensure high hydraulic capacity and prevent erosion with specific slope and material choices. An Environmental Impact Assessment was conducted, addressing noise, dust, water quality, waste management, and ecological impacts. Mitigation measures were recommended to minimize adverse effects during the construction and operation phases. Despite challenges such as limited access to surveying equipment and data, the project concluded with a comprehensive stormwater management plan. Recommendations include rehabilitating the university’s weather station and establishing a project database to support future planning and research. The project underscores the importance of integrating sustainable practices in urban development to safeguard environmental and infrastructural integrity.
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    Reducing Congestion in The Metropolitan Area: A Case of Greater Kampala Metropolitan Area
    (East African Nature and Science Organization, 2025-04-01) Tukashaba, Shafan; Kizito, Lule Ssentongo
    Traffic congestion poses significant challenges for cities in developing countries, with Kampala, Uganda, being no exception. As the capital and largest city in Uganda, Kampala grapples with a burgeoning population and inadequate transport infrastructure, leading to gridlock, environmental pollution, and economic losses. This paper proposes the introduction of a congestion charge zone as a solution to alleviate traffic congestion in Kampala. Drawing inspiration from successful implementations in cities like London, the proposed system aims to discourage private vehicle use during peak hours by levying charges on entering designated zones within the city. The paper outlines the current state of transport in Kampala, highlighting the dominance of private vehicles and the shortcomings in public transit infrastructure. It explores the concept and mechanics of congestion charge zones, emphasizing the role of technology in enforcement and the potential for cost-effective implementation in Kampala, leveraging existing CCTV and traffic control infrastructure. Furthermore, the paper discusses key considerations for successful implementation, including the need for viable alternative transport options, public awareness campaigns, stakeholder engagement, and robust enforcement strategies. By implementing a congestion charge zone, Kampala stands to mitigate traffic congestion, improve air quality, and enhance overall urban mobility, contributing to sustainable development in the region
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    Strategic Transportation Planning: Co-Site Planning at Coolwood SA Company
    (East African Nature and Science Organization, 2024-05-23) Tukashaba, Shafan; Shingiro, Clement
    This technical report presents a meticulous exploration of the site planning endeavours undertaken by CoolWood SA, a distinguished entity in wood furniture production, as it endeavours to relocate its operations to Hasselt, Belgium. With over 15 years of industry expertise, CoolWood SA seeks to optimize spatial utilization and operational efficiency through strategic site planning. The report delves into the intricacies of site location, area adjustment, department allocation, external flow access to the warehouse, and current road infrastructure analysis. Utilizing a multifaceted approach, CoolWood SA collaborated with Afro International Transport Planning Consultants to employ various software tools and adhere to international standards throughout the planning process. Key findings include detailed area adjustments, department allocations aimed at enhancing operational efficiency, and analyses of internal circulation, parking requirements, and external traffic movement. Notable measures such as prioritizing employee safety, accommodating diverse transportation modes, and promoting cleanliness and hygiene within the facility are meticulously outlined. The report concludes with insights gleaned from sight distance analyses, swept analysis simulations, and overarching recommendations for CoolWood SA to elevate safety standards and facilitate industry growth. By implementing the proposed strategies and measures, CoolWood SA stands poised to navigate its relocation journey with precision and foresight
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    Strategic Transportation Planning: Soft Mobility Network Planning Technical Report
    (East African Nature and Science Organization, 2024-05-21) Tukashaba, Shafan; Shingiro, Clement
    This technical report presents a comprehensive approach to soft mobility network planning, focusing on assessing the potential for growth in bicycle infrastructure. Utilizing GIS-based analysis and multi-criteria decision-making, the study aims to identify and prioritize areas for new bike infrastructure development. The methodology involved defining influential factors, selecting variables from available datasets, assigning value levels, weighting parameters, and generating cycling infrastructure potential maps. Factors such as connectivity, safety, and attractiveness are considered, with each variable assessed and scored based on current conditions and ideal benchmarks. The results highlight high-potential areas for infrastructure improvement and propose desired lines to enhance the existing network. Limitations of the study, including data currency and grid dimensions, are acknowledged, suggesting avenues for future research and improvement. Overall, the study underscores the importance of integrated planning approaches and the utilization of spatial analysis tools in promoting cycling as a sustainable and accessible mode of transportation