Architectural Engineering Commons^™

Harmonizing Vaccine And Infrastructure Development To Tame Cholera Outbreaks Across Africa, Amira Mohamed Taha, Hussam Mahmoud, Emad M. Hassan, Mohamed M. Ghonaim

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

Vaccines and clean water shortages continue to give rise to cholera outbreaks in Africa. Coordinated efforts to increase vaccine distribution and improve physical infrastructure are needed while considering future outbreaks and water demands due to conflicts and climate events.

Energetics Of Mode-1 Internal Waves Interacting With Topographic Ridges Of Varying Height And Slope, Matthew R. Klema, Subhas K. Venayagamoorthy

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

Energetics of mode-1 internal waves interacting with topographic ridges are investigated using high-resolution two-dimensional simulations at spatial scales of m that span between classical laboratory-scale (m) and field-scale simulations (m). This paper focuses on the energetics of wave-Topography interaction, with emphasis on systematically examining the partitioning of the incident wave energy as a function of wave forcing and topographic parameters. Partitioning of energy into the transmitted, reflected and dissipated components is quantified as a function of wave Froude number (velocity amplitude of forcing and internal wave celerity), slope criticality, where topographic slope and wave characteristic slope, and the ratio of …

Rethinking Human-Autonomy Teamwork In The Context Of Design And Robotic Fabrication, Iremnur Tokac Celikyay, Caja Thimm, Sigrid Brell-Cokcan

Human-Machine Communication

The integration of autonomous agents in design is challenging due to its unstructured nature. The increasing focus on human-robot interaction (HRI) is driven by its potential to address this issue, enabling human-robot teams to effectively manage creative design tasks. This paper aims to identify interactive processes among the agencies of humans, robots, and materials. We explore how HRI can shift robotic fabrication from a linear deterministic process to an iterative co-creation one. Through reflective analysis of robotic fabrication studies, we illustrated how interaction interfaces can distribute agency among humans, robots, and materials while negotiating the design intent with material and …

Towards Human-Machine Collaboration In Autonomous Material Handling On Construction Sites, Jyrki Oraskari, Lukas Kirner, Marit Zöcklein, Sigrid Brell-Cokcan

Human-Machine Communication

In the contemporary construction industry, the shortage of skilled labor has prompted the exploration of automation as a remedy and machine autonomy as a potential solution to the environmental conditions at the site. This research explores the balance between human oversight and the independent decision-making capabilities of robots for material delivery on construction sites. Using a scenario-based approach, autonomy in construction robotics is evaluated across four human-machine interaction cases with spatial and temporal dimensions. The expected outcomes revolve around improved safety through better human-machine communication and establishing an interoperable data model to enhance robot autonomy. This aims to automate tasks …

Automating Modular Construction Manufacturing For Affordable Housing, Enaam Mohammed Ouda

Thesis/ Dissertation Defenses

In recent years, there has been an increase in the frequency and intensity of natural disasters worldwide, resulting in loss of life, displacement, and extensive property damage. According to the UNHCR's report, 89.3 million individuals were displaced in 2021, highlighting that the speed and volume of displacement exceeds the availability of solutions for those affected. To address the urgent need for affordable housing solutions, modular construction is preferred over traditional construction methods as it tackles limitations such as long project durations, high costs, and safety and environmental concerns. Integrating advanced technologies in modular construction can further enhance its benefits and …

Evaluating The Feasibility And Efficacy Of 3d Printing Versus Traditional Construction Techniques: A Study Of Cost, Time And Energy Of A New Lowrise Office Building On The Uaeu Campus, Hala Mohammed Basel

Thesis/ Dissertation Defenses

In line with the forward-looking vision of the United Arab Emirates University (UAEU), this research evaluates the feasibility and effectiveness of 3D printing technology compared to traditional construction methods, focusing on cost, time, and energy efficiency for a new low-rise office building on the UAEU campus. With the growing number of PhD students in the Architectural Engineering Department, expanding office space has become a priority. This study explores how 3D printing technology, known for its sustainability, reduced material waste, and accelerated construction, can address these challenges more efficiently than conventional methods.Guided by the UAE Vision 2030, which promotes innovation and …

Association Between In Situ Ventilation And Human-Generated Aerosol Exposure In Meatpacking Plants During The Covid-19 Pandemic, Joshua L. Santarpia, Josephine Lau, Debayan Shom, Shanna A. Ratnesar-Shumate, Eric C. Carnes, Gearge W. Santarpia, Vicki L. Herrera, Danielle N. Rivera, Daniel N. Ackerman, Ashley R. Ravnholdt, John J. Lowe, Athena K. Ramos

Durham School of Architectural Engineering and Construction: Faculty Publications

During the COVID-19 pandemic, meatpacking workers were disproportionately affected by disease. Large outbreaks at meatpacking facilities resulted in loss of life and threatened the well-being of workers across the globe. Much work was done throughout the pandemic to understand and prevent these outbreaks. This study combined ventilation system evaluation and measurement of human-generated respiratory aerosol to investigate and identify areas of highest risk for disease transmission. These findings confirm that improved ventilation reduces exposure to human-generated aerosols in meatpacking facilities, including those that may contain infectious agents, such as SARS-CoV-2. This study suggests areas of greatest risk are likely areas …

Three-Dimensional Technique For Accurate Pavement Macrotexture Measurement Using Surface Volume Parameters, Alireza Pourhassan, Ahmed A. Gheni, Mohamed A. Elgawady

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

This study introduces a novel three-dimensional (3D) pavement macrotexture measurement technique using ISO 25178 Surface Volume Parameters (SVP). The method calculates pavement material volume and texture height using cutoff thresholds based on the cumulative probability density function of measured heights. The research aims to optimize these cutoff thresholds for accurate 3D analysis of pavement macrotexture. The study evaluates the performance of various 3D and 2D parameters—assessing their repeatability, reliability, and accuracy—across thirty pavement samples with diverse macrotexture conditions. Findings show that the 3D SVP method, with optimized cutoff thresholds, strongly correlates with sand patch mean texture depth (MTD) and exhibits …

المعايير العالمية المشتركة لتقييم جودة البيئة السكنية, Nahar Bahij Abdelfattah Mr., Ali Salem Bahammam Prof

Emirates Journal for Engineering Research

تعمل الحكومات على تحسين جودة الحياة لمواطنيها من خلال مشاريعها وبرامجها التنموية. حيث يُعنى برنامج جودة الحياة، كجزء من برامج دعم تحقيق رؤية المملكة العربية السعودية ٢٠٣٠، بتحسين جودة حياة أفراد المجتمع. في حين يتطلب تحسين جودة الحياة العمل على تعزيز مجالات الحياة المختلفة والبيئة المحيطة. ومن هنا، تحتل جودة البيئة المبنية أهمية محورية، خاصةً في البيئة السكنية التي تُشكّل الجزء الأكبر من النسيج العمراني.

إن تلبية الطلب المتزايد على الإسكان بجودة تساهم في تحقيق أهداف رؤية ٢٠٣٠ وبالسرعة المطلوبة يستدعي وضع معايير سعودية لتقييم جودة البيئة السكنية. هذه المعايير ستكون مرجعًا لكافة مراحل التصميم، والمراجعة، والتقييم. ولكن استنباط هذه …

Automating Modular Construction Manufacturing For Affordable Housing, Enaam Mohammed Ouda

Theses

In recent years, there has been an increase in the frequency and intensity of natural disasters worldwide, resulting in loss of life, displacement, and extensive property damage. According to the UNHCR's report, 122.6 million individuals were displaced by mid-2024, highlighting that the speed and volume of displacement exceeds the availability of solutions for those affected. To address the urgent need for affordable housing solutions, modular construction is preferred over traditional construction methods as it tackles limitations such as long project durations, high costs, and safety and environmental concerns. Integrating advanced technologies in modular construction can further enhance its benefits and …

Evaluating The Feasibility And Efficacy Of 3d Printing Versus Traditional Construction Techniques: A Study Of Cost, Time And Energy Of A New Lowrise Office Building On The Uaeu Campus, Hala Mohammed Basel

Theses

In line with the forward-looking vision of the United Arab Emirates University (UAEU), this research evaluates the feasibility and effectiveness of 3D printing technology compared to traditional construction methods, focusing on cost, time, and energy efficiency for a new low-rise office building on the UAEU campus. With the growing number of PhD students in the Architectural Engineering Department, expanding office space has become a priority. This study explores how 3D printing technology, known for its sustainability, reduced material waste, and accelerated construction, can address these challenges more efficiently than conventional methods.

Guided by the UAE Vision 2030, which focuses on …

Human-Centered Approach For Resilience Assessment Of Healthcare Networks Subjected To Sequential Earthquakes, Emad Hassan, Hussam Mahmoud

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

Healthcare services are critical for community resilience and stability as their role after disastrous events is indispensable to reducing casualties and returning the community to normalcy. Sequential mainshock-aftershock events can damage hospital components, reduce utility availability, and cause multiple patient surges. No studies have been conducted to evaluate the impact of mainshock-aftershock events on healthcare resilience. Accordingly, here we investigate the impact of multiple earthquakes on the healthcare network in Shelby County, Tennessee, and determine the optimal resources needed to enhance its functionality. The functionality is estimated by combining functionality quantity and quality terms. The quantity is calculated based on …

Anti-Corrosion Performance Of Magnesium Potassium Phosphate Cement Coating On Steel Reinforcement: The Effect Of Boric Acid, Fan Zhang, Jihui Qin, Kangyi Cai, John J. Myers, Hongyan Ma

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

It has recently been found that magnesium potassium phosphate cement (MKPC) paste coating applied on the surface of steel reinforcement can effectively retard the onset of corrosion and suppress corrosion reactions. However, the fast-setting nature of MKPC—which is a merit in repair—can be problematic in a practical engineering process of coating the steel reinforcement with MKPC paste. To address this problem, boric acid (H₃BO₃) was added as a retarder in an MKPC formulation to prolong the setting time. This work investigated the impact of boric acid (at 5% by weight of MgO) on the anti-corrosion performance …

Innovative Integration Of Modern Facade Design With Traditional Bubungan Tinggi Facade: Towards A Sustainable Home, Nursyarif Agusniansyah, Gusti Novi Sarbini

ASEAN Journal on Science and Technology for Development

This study investigates the transformation of Bubungan Tinggi, a traditional Banjar house with a high roof, into a modern home through the integration of modern facade design with traditional Bubungan Tinggi facade elements. Bubungan Tinggi is a monumental artifact in South Kalimantan representing the collective memory of the Banjar community with its distinctive typology and anatomy. With its unique typology and anatomy, this particular building has evolved into an iconic structure that symbolizes the collective memory of the Banjarese people.

This study uses a qualitative approach with design experiments to explore the integration of facade design, new form, and contemporary …

Improving Mechanical Properties Of Magnesium Phosphate Cement-Based Ultra-High Performance Concrete By Ultrafine Fly Ash Incorporation, Jihui Qin, Zhichao Zhang, Hongyan Ma, Xiaobing Dai, Xing Cheng, Xingwen Jia, Jueshi Qian

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

Magnesium phosphate cement-based ultra-high-performance concrete (MPC-UHPC) develops strength rapidly but shows unsatisfactory ultimate strength (<150 >MPa). In this study, ultrafine fly ash (UFA) was incorporated in MPC-UHPC to improve mechanical properties. The effect of UFA content, varying from 0 % to 15 %, by weight of binder, on microstructure, fiber pullout behavior, mechanical strengths, flexural and tensile properties of MPC-UHPC reinforced with 2 vol% steel fibers was investigated. Experimental results indicate that the incorporation of 10 %–15 % UFA with mean particle size of 1.4 µm was effective in reducing porosity and microcracks of binder matrix and fiber–matrix interface, thereby …

Novel Insights On The Setting Process, Hardened Properties, And Durability Of Sustainable Ultra-High-Performance Seawater Sea Sand Concrete, Wei Zhang, Dawei Ding, Jianxing Sun, Feng Guo, Haibao Feng, Hongyan Ma, Shuxian Hong, Biqin Dong, Dongshuai Hou

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

Using seawater and sea sand to prepare concrete could effectively alleviate the shortage of freshwater and river sand resources and promote the sustainable development of concrete. However, the current research on the setting process, hardened properties, and sustainability of ultra-high-performance seawater sea sand concrete (UHPSSC) remain considerably limited. In this paper, the UHPSSC was designed to mitigate the autogenous shrinkage and enhance the sustainability, and the effect of seawater, untreated and desalinated sea sand on the setting process, mechanical properties, durability, and sustainability was explored by various tests. Results show that the abundant ions (e.g., Cl- and SO42-) in seawater …

Virtual Reality To Preserve Heritage Buildings, Nesma Mohammed Abd El- Maksoud

Journal of Engineering Research

ملخص البحث:

تنمية التراث أساس لتنمية المجتمع والحفاظ على الهوية المحلية وذلك باستخدام التقنيات المستحدثة ويعتبر التوثيق احد اليات الحفاظ على المباني التراثية ويهدف البحث الى دراسة توثيق المباني التراثية بصورة تكنولوجية حديثة ( باستخدام الواقع الافتراضي) وتفعيل دوره في الحفاظ على المباني التراثية من خلال تطبيقاته بالعرض والتسويق و التوثيق للمباني التراثية والحصول على البيانات والدراسات المعمارية و التاريخية والتنبوء بالمخاطر المستقبلية واستخدامها في الصيانة والترميم والحفاظ على المباني التراثية بالاضاقة الى تحليل رؤية المستخدمين بنظرة شمولية تربط الواقع والهوية المحلية بالتوجهات المستحدثة

يتضمن البحث الدراسة الاستقرائية التحليلية ويشمل الجزء الاول على اهم مفاهيم التراث ورقمنة التراث و التراث …

The Impact Of Demographic Changes On 19th-Century Heritage Case Study (Central Cairo Khedive), Hagar Taha Mohammed Elnwahy, Ayman Abdel Tawab Professor, Wesam Abou Ei.Haggag Mehanna Dr

Journal of Engineering Research

ملخص : مثلت القاهرة الخديوية منذ نشأتها تطورت عمرانياً وممارياً، وبدأت في قلب الحياة الاجتماعية، حيث بدأت بدأت من جديد الديمغرافية في عدة قناعة والاعتماد، وقد شهد هذا التغير أيضاًً على تراثها الحديث، لذلك يستكشفون البحث عن الديموغرافية في وسط القاهرة من خلال حصر الفترة بين يبدأ القاهرة الخديوية وما بعد الاشتراكية، ودراسة أهم القوى العمرانية المؤثرة، ومن ثم تحليل الديناميكيات العسكرية المؤثرة في تحول بناء المجتمع التراثي، كما يرصد البحث مشروع التنمية في وسط القاهرة ويعرف مدى تأثيره على مصالح الأفراد في المجتمع، مما يقود الدراسة إلى استنتاج وصياغة الخبراء ونفعهم. السلامة تطوعية المجتمعية لتراث القاهرة الخديوية.

The Thermoplastic Honeycomb As An Eco-Friendly Material For Shelters, Neveen Youssef Azmy, Wesam Aeh Mehanna, Aya Fouad Kahla

Journal of Engineering Research

Nature-inspired design offers distinct environmental characteristics and makes them valuable in the development of structural designs within the construction industry, owing to their inherent natural and aesthetic qualities. Hexagonal structures exhibit remarkable mechanical, structural, and environmental attributes. Consequently, this research focuses on investigating honeycomb configurations composed of thermoplastic materials that engage thermally with the surrounding environment, as well as exploring their applications in temporary structures. The research aims to contribute to a temporary design model for shelter to protect the environment well and improve energy consumption by using a thermoplastic honeycomb to sustainable environment. A specialized model was developed to …

Key Performance Indicators To Support Decision-Making And Improve Housing Projects According To Egypt Vision 2030, Abdullah Badawy Mohammed

Journal of Engineering Research

Housing projects lack control and assessment tools and rely on the practices of companies or agencies, which have negatively affected the performance of these projects according to the development plans. Hence, the study seeks to formulate and devise a list of key performance indicators (KPIs). These KPIs are to boost the performance of housing projects so that implementation is effective and achieves Egyptian state goals. Hence, the utmost usefulness will come from investments within housing programs to achieve the maximum economic and social returns. Accordingly, the concept and priority of the housing sector in development plans, besides influencing and governing …