Architectural Engineering Commons^™

Synergetic Effect Of Viscosity Modifying Admixtures And Polycarboxylate Ether Superplasticizer On Key Characteristics Of Thixotropic Uhpc For Bonded Bridge Deck Overlay Rehabilitation, Le Teng, Ming Jin, Jiadi Du, Kamal H. Khayat

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

Thin bonded ultra-high-performance concrete (UHPC) overlay is an advanced technology for bridge deck rehabilitation. UHPC should be tailored to secure adequate flowability and high thixotropy to facilitate mixing and placement with a low risk of sagging of the material on sloped bridge deck surfaces. The synergetic effect between nano clay (NC) and polycarboxylate ether (PCE) superplasticizer or cellulose-based viscosity modifying admixture (VMA) and PCE on the rheological properties (yield stress, plastic viscosity, and thixotropy), cement hydration, autogenous shrinkage, compressive strength, and porosity was systematically investigated. The bond strength between conventional concrete (CC) representing existing bridge deck concrete and thixotropic UHPC …

Application Of Multidisciplinary Community Resilience Modeling To Reduce Disaster Risk: Building Back Better, Wanting "Lisa" Wang, John W. Van De Lindt, Blythe Johnston, P. Shane Crawford, Guirong Grace Yan, Thang Dao, Trung Do, Katie Skakel, Mojtaba Harati, Tu Nguyen, Robinson Umeike, Silvana Croope, Andre R. Barbosa

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

From december 10 to december 11, 2021, a deadly tornado outbreak struck across several states in the us, including arkansas, illinois, kentucky, and tennessee. This tornado outbreak resulted in at least $3.9 Billion in damage, more than 90 fatalities, and hundreds of injuries. Mayfield, kentucky, a small city in the eastern united states, was hit by a long-track tornado rated as an enhanced fujita 4 (ef4) scale and was one of the communities most heavily damaged during the tornado outbreak. Following the 2021 tornado event, an analysis was performed in the interdependent networked community resilience modeling environment (in-core) for the …

Chloride Binding Mechanism In Seawater-Mixed Uhpc, Wei Zhang, Dawei Ding, Mengmeng Li, Tiao Wang, Hongyan Ma, Binmeng Chen, Hongxing Hu, Jizhou Chen, Xiaomin Liu, Dongshuai Hou

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

The rapid development of marine concrete structures and the sharp shortage of freshwater resources contribute to the wide investigation of seawater-mixed ultra-high-performance concrete (swuhpc). However, few studies have investigated the chloride ions (cl-) binding mechanism of swuhpc. Herein, the chloride binding experiments and molecular dynamics (md) simulation were carried out to reveal the physically and chemically bound cl- mechanisms of swuhpc. The results of the experiments clearly demonstrate that the addition of silica fume (sf) led to a significant decrease in the capacity of cl- binding. Conversely, the incorporation of metakaolin (mk) resulted in a marked increase in the content …

A Review Of Whipple Shield Ballistic Limit Equations, S. Ryan, W. (William) P. Schonberg

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

Ballistic limit equations (BLEs) are semi-analytical expressions used to predict the risk posed by micrometeoroid and orbital debris (MMOD) impacts on a spacecraft. A foundational BLE, known as the new non-optimum (NNO) equation was published by Eric Christiansen of NASA Johnson Space Center in 1990 for application on Whipple shields – two-plate configurations consisting of a thin sacrificial plate located at some standoff in front of the spacecraft pressure hull or structural wall. Today, BLEs for almost all multi-plate spacecraft structures, e.g., honeycomb sandwich panels, monolithic structures with thermal insulation blankets, etc., are based on the NNO Whipple BLE. We …

Four-Way Cfd-Dem Coupling To Simulate Concrete Pipe Flow: Mechanism Of Formation Of Lubrication Layer, Tooran Tavangar, Masoud Hosseinpoor, Jeffrey S. Marshall, Ammar Yahia, Kamal H. Khayat

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

This study introduced a four-way CFD-DEM coupling approach to simulate the shear-induced particle migration (SIPM) mechanism leading to formation of the lubrication layer (LL) during concrete pumping. The CFD-DEM simulations considered the coupled effect of concentration (10 %–40 %) and wide size distribution (1–17 mm) of aggregate and rheology of the mortar for forces between the suspending matrix and the particles (and vice versa), as well as force transmission directly between particles (and the pipe wall). The formation of the LL was successfully simulated through a more realistic understanding the SIPM mechanism and rheological evaluation across the pipe with comparable …

Utilizing Biomimicry To Design Sustainable Architecture, Virginia Hammond

Architecture Undergraduate Honors Theses

Nature has an integral relationship with architecture and serves as a sustainable role model and inspiration for designers. The process of biomimicry in architecture has the potential to produce more sustainable design solutions and foster a connection between humans and nature. Existing biomimetic design projects have varying strengths and weaknesses as examples of the process. Utilizing guidelines and references from key leaders in biomimetic design consultancy (Biomimicry 3.8), selected case studies are assessed for their ability to demonstrate the benefits of this design strategy. Using these evaluations, the case studies are diagrammed and critiqued to determine how new projects could …

Poster Session: Onu Engineering Freshman And Senior Design Projects, Keith Schimmel

Scholar Week 2016 - present

This poster session is held Friday, April 19, 4:45-6:15pm, with food served, in the Reed Hall of Science Tech Center.

The capstone engineering senior design projects at Olivet Nazarene University involve interdisciplinary engineering teams completing real-life projects sponsored by companies, mission organizations, and professional society competitions. The engineering first-year design projects at Olivet Nazarene University involve interdisciplinary engineering teams proposing product improvement designs, using Computer Aided Design (CAD) software. Posters for both the senior and freshman engineering design projects will be presented during this poster session.

Adventure Course - Hocking Hills Retreat Center, Donavan Yelle, Valerie Froylan, Nathaniel Nargang, Samantha Paterson

Scholar Week 2016 - present

Hocking Hills Retreat Center located in Logan, Ohio tasked a senior engineering design group with the creation of a high and low ropes adventure course. The goal of this course is to increase the number of visitors to the retreat center. The course was designed to feature a kid’s area; a teamwork section; and beginner, intermediate, and expert courses. All course elements range from ten to thirty feet in elevation to allow for a variety of difficulty levels. The course has been modeled using both AutoCAD and Revit software. Additionally, structural analysis was performed to ensure the safety and strength …

Efficient, Affordable, And Accessible (Eaa) House Design, Jack Holohan, Matthew Carpenter, Faith Dalton, Payton Tindal

Scholar Week 2016 - present

Recent trends in the housing market, along with household income disparities, underscore the need for efficient, affordable, and accessible (EAA) housing for middle to lower-middle-income families. The EAA House Design project presents an alternative solution through a detailed set of construction documents encompassing architectural, electrical, mechanical, structural, plumbing, and interior design. Revit software was used to plan, design, and manage the project. The completed project will be submitted for the National Council of Examiners for Engineering and Surveying (NCEES) Engineering Education Award.

Education And Advocacy For Universal Design And Accessibility In Housing, Apisara Vairojanakich, Amy Lyons-Brown, Molly Wuebker

Spring 2024 Virtual OTD Capstone Symposium

In the United States, there is a lack of adequate numbers of universally designed and accessible houses in the housing market for the older population and people with disabilities. Many barriers, such as financial support and lack of knowledge for housing-related professionals, can prevent this population from participating in home occupations. The project developed educational products, including the universal design housing experience booklet, universal design housing checklist, and universal design blueprints. These products were delivered through the blog post on Uncurbed LinkedIn website. The needs assessment was conducted to provide the guidelines for the chapters in the booklet and checklist. …

Effects Of Rest Time And Curing Regime On Short- And Long-Term Strength Of Class C Fly Ash-Based Alkali-Activated Mortars, Cedric Kashosi, Ahmed Gheni, Eslam Gomaa, Mohamed Elgawady

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

This study investigated how different rest times affect the strength development of fly-ash-based alkali-activated mortar (aam) over a period of 90 days. Two types of fly ash with varying calcium oxide contents of 37 and 21% were used. The rest times ranged from 2 to 36 h, and three curing methods (ambient, oven, and steam) were tested. The results showed that the rest time significantly influenced the compressive strength of the aam. The optimal rest time was found to be between 12 and 30 h depending on the curing method and fly ash type. Beyond this range, there were only …

Building For Safety: Design Considerations For Refuge Areas In Tall Buildings From Quality Management Perspective, Enass. A. Salama, Heba. M. Gaber, Ahmed. M. Selim

Journal of Engineering Research

New El Alamein City is one of the largest urban projects in Egypt, and the largest project on the north coast. Tall buildings (super high-rise buildings) are considered the prevailing trend by architectural designers to obtain the maximum view of the Mediterranean Sea. The provision of safety evacuation in emergencies for these buildings’ occupants is a crucial challenge from the Quality management point of view. In contrast, there are no sufficient architectural design guidelines for the tall buildings provided by the Egyptian code for protecting buildings from fire, especially the design of the refuge areas. This study aims to investigate …

Impact Of Mega Projects Construction On Surrounding Traffic - A Case Study Of The Oncology Institute, Rania Abdo, Huda Soliman Seddiq, Walaa Ahmed Nour Prof, Bahaa El-Boshy

Journal of Engineering Research

The adverse effects of traffic on the quality of life have become undeniable, with congestion, noise, and pollution significantly impacting urban environments. Large construction projects risk exacerbating existing traffic problems or creating new ones without proper traffic planning and management. Notably, most existing studies predominantly concentrate on the post-construction phase of buildings, neglecting the broader temporal spectrum of project development. The importance of traffic studies is further underscored as they provide a proactive framework for planners, policymakers, and developers. By delving into the nuances of traffic impact during the entire project lifecycle, this research, instead of our research, not only …

دور الخرائط الصوتية في التوثيق المستدام للمناطق التراثية The Role Of Sound Maps In Sustainable Documentation Of Heritage Areas, Rasha Hassan El-Adl, Esraa M. Elazab, Nanees Abdel Hamid Mohamed Ali Elsayyad

Journal of Engineering Research

ملخص البحث- تُعد الخبرة الحسية مجالاً متطورًا في الهندسة المعمارية يُسهم في توجيه فهم الناس للتجربة المعمارية، خاصةً في مناطق التراث التي تُقدّر بشكل أساسي لأهميتها الثقافية. يُعتبر تحديد محفزات الاستجابة الحسية التي تشكل جزءًا أساسيًا من تقارب الناس مع المناطق التراثية أمرًا ضروريًا لتوثيق التراث. لذلك يهتم البحث بمناقشة ودراسة الإدراك الحسي ومراحله، مع التركيز على الفرق بين الإدراك الإيجابي والإدراك السلبي، ودراسة إدراك الفراغات العمرانية ودور العمارة في تعزيز الإدراك، مع التأكيد على أهمية المشي الحسي كممارسة حضرية للإدراك الحسي. بعد ذلك، يتحول البحث لاستكشاف الخرائط الحسية وأنواعها، مع التركيز على الخرائط الصوتية وتقنيات رسمها، كذلك …

Analyse Permeability And Integration In Architectural Landscapes To Create A Seamless Environment, Ensuring Ease Of Movement And Blending With The Surrounding Environment., Amira Fawzy Helmy Almaz

Journal of Engineering Research

The study explores the understanding of connectedness, integration, and axial route selection in urban parks using space syntax. It uses the Theory of Space Syntax to analyze georeferenced photographs and urban morphology data. The findings suggest that creating rules for integration and linkage that directly influence users' decision-making processes could lead to significant improvements in urban parks.

The study discusses space syntax as an architectural concept that views architecture as an interface between public and private spaces, analyzing landscapes through mirroring and focusing on internal configurations and exteriors. The study proposes a method to measure permeability and integration in urban …

The Applicability Of International-Environmental Rating Systems On Eco-Lodges, Amr Ali Bayoumi Dr., Ola Ali Bayoumi Dr.

Journal of Engineering Research

Thousands of years ago, Eco-lodges established in rural areas, away of the main cities, for multiple reasons; low populated area, healthier environment (psychological and physical health) and Economic development. Some of them were established randomly by local people and others were developed by architects or developers. Recently, it is essential to develop such projects in to deserts, forests or cold mountains in order to reduce the high population density in capital cities. Unfortunately, Environmental and International rating systems were not developed to be measuring tools to any type of Eco-lodge. Thus, the researcher had developed a new rating system adaptive …

Enhancing The Sustainability Of The Visual Scenery Elements Of Urbanism To Achieve Quality-Of-Life Standards, Sahar Said Gado, Henar A. Kalefa

Journal of Engineering Research

Abstract

The quality of life for urban areas is an idea that has recently been discussed in various studies as a response to the many problems facing cities around the world as well as in Egypt. As the city is the product of a reflection of its identity and cultural and civilised heritage that is growing and changing, and enhancing the sustainability of the elements of the visual image of the city is one of the changes that, in turn, seeks to create a suitable urban environment for the population and reach the highest rates of environmental comfort and complete …

تقنيات الاضاءة الصناعية وتأثيرها فى الفراغ السكنى على السلوك الانسانى, Samah Kamal Elfeky, Walaa Ahmad Nour, Lobna Abdelfatah Agha

Journal of Engineering Research

* Lighting is considered of main items in daily life begining from natural Lighting to industrial lighting. with all of it's different shapes . it is considerdone of the most important data that point Blank spaces and works to show architectural spaces, aesthetic values through being sharp and weak, ensure borders show texture or hide Features, suggest wideness, narrowness of space as the most beautiful design don't see beautiful without good lighting which designed carefully.Due to diversity of human activities, architictums spaces and it is wideness. Increased dependence on industrial Lighting to strengthen Job of performance, beauty of internal, external …

The Role Of Greenways In Achieving Urban Sustainability For Cities Accordance With The Sustainable Development Goals 2030, Walaa Ahmed Nour Prof, Aya Abdelazim Abdeen, Lobna Agha Prof

Journal of Engineering Research

The concept of "greenways" emerged to achieve sustainable development in urban areas and to address natural disasters resulting from climate change. This research paper aims to study the role of greenways in achieving urban sustainability and their facilitation in achieving the Sustainable Development Goals for 2030. The paper expounds on the idea and origin of greenways, their benefits, and analyzes some global examples. Furthermore, it categorizes the indicators of greenway design into two types: those with a positive impact and those without an impact on sustainable development goals. Using standardized tools, the relationship between each indicator and sustainable development goals …

Parametric Design As A Tool To Reduce Solar Penetration By Outdoor Shades In Hot Arid Climate, Rana O. Aboulfaraj, Iman O. Gawad, Mostafa Khalifa

Architecture and Planning Journal (APJ)

Conventional design methods and current tools infrequently link performance with the geometry of the design. These methods rarely enable backtracking through the design process and can't achieve full performance criteria. In this context, using both procedural geometry and information from numerical assessments and performance simulations should be discussed to support the search for effective solutions. Architects have gained control over the process of design by utilizing parametric methods to generate a sustainable design that interacts with sustainable, climatic, and environmental restrictions, particularly in hot arid zones where outdoor life is overlooked. This paper will discuss the performance-oriented design and a …