Architecture Commons^™

Behavior Of Ultrahigh-Performance Concrete Plates Encasing Steel H-Piles, Mohamed Elgawady, Binod Shrestha

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

Steel H-piles are exposed during their service life to wet-dry cycles in combination with salts, such as deicing, that may result in corrosion, leading to cross-sectional loss and reduction in axial load-carrying capacity. This paper proposes an innovative repair method for corroded steel H-piles using ultrahigh-performance concrete (UHPC) plates. The UHPC plates are reinforced with carbon fiber-reinforced polymer (CFRP) grids. The UHPC plates bridge the corroded segment so that the axial force bypasses the corroded segment. The UHPC are bolted to the steel H-pile using high-strength bolt connectors (HSBCs). Eleven steel H-piles bolted with UHPC plates were investigated experimentally under …

Utilizing Waste Latex Paint Toward Improving The Performance Of Concrete, Mohamed Leithy, Eslam Gomaa, Ahmed A. Gheni, Mohamed Elgawady

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

In this paper, incorporating the waste latex paint (WLP) into the conventional concrete as a partial replacement of sand to improve its durability was investigated. The fresh and hardened characterizations, in addition to the durability of concrete, were examined. The slump test was used to evaluate the fresh properties, while the hardened properties were evaluated through the volume of voids and absorption rate, in addition to the compressive, splitting tensile, and flexural strengths tests. The durability performance was evaluated by the surface resistivity, bulk electrical resistivity, as well as freeze and thaw resistance tests. The results showed a reduction in …

A Systematic Review On The Ecosystem Services Provided By Green Infrastructure, Daniel Jato-Espino, Fabio Capra-Ribeiro, Vanessa Moscardó, Leticia Bartolome Del Pino, Fernando Mayor-Vitoria, Laura Gallardo, Patricia Carracedo, Kristin Dietrich

Faculty Publications

Urbanization and climate change are endangering the sustainability of public spaces through increased land artificialization, ecological fragmentation, reduced resource availability, and limited accessibility to natural and seminatural areas. Properly managing Green Infrastructure (GI) can contribute to mitigating these challenges by delivering multiple provisioning, regulating, supporting and cultural Ecosystem Services (ES). This would facilitate the implementation of strategically planned GI networks in cities for urban regeneration purposes. In this context, this study developed a systematic review on the ES provided by GI using the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) statement. The analysis of 199 eligible articles indicated …

Reimaging The Library Of The Future. From Social Condenser And Community Hub To Regenerative Design, Steffen Lehmann

Architecture Faculty Research

The primary objective of this article, an architectural forecasting opinion piece written by a design expert, is to investigate the various models of public library buildings and explore the continuous evolution of library design (presenting valuable information for anyone planning a library). The main question explored in this article is: What will be the design characteristics of the next-generation library? Methods used include precedent analysis, cases selected from an international list of 50 libraries built between 2010–2023 following a web search using the phrase “public library architecture” and analyzing these cases for repeated thematic similarities. Three similarities are identified.

Machine Learning-Based Seismic Damage Assessment Of Residential Buildings Considering Multiple Earthquake And Structure Uncertainties, Xinzhe Yuan, Liujun Li, Haibin Zhang, Yanping Zhu, Genda Chen, Cihan H. Dagli

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

Wood-frame structures are used in almost 90% of residential buildings in the United States. It is thus imperative to rapidly and accurately assess the damage of wood-frame structures in the wake of an earthquake event. This study aims to develop a machine-learning-based seismic classifier for a portfolio of 6,113 wood-frame structures near the New Madrid Seismic Zone (NMSZ) in which synthesized ground motions are adopted to characterize potential earthquakes. This seismic classifier, based on a multilayer perceptron (MLP), is compared with existing fragility curves developed for the same wood-frame buildings near the NMSZ. This comparative study indicates that the MLP …

The Municipal Acequias Of San Fernando De Béxar: A Working Paper, José A. Rivera Ph.D

Faculty Publications

Of the seven acequia irrigation systems constructed during the height of San Antonio’s Spanish colonial period, five were built for the benefit of the Franciscan missions and their indigenous residents: San Antonio de Valero, Nuestra Señora de la Purísima Concepción de Acuña, San José y San Miguel de Aguayo, San Juan Capistrano, and San Francisco de la Espada. In addition to the five mission acequias, other diversions from the Río de San Antonio and San Pedro Creek were constructed for civilian use within the municipality of San Fernando de Béxar, founded in 1731, now San Antonio: the San Pedro Acequia …

The Water Mills Of The Historic Río Arriba In Northcentral New Mexico, 1598-1975, José A. Rivera Ph.D, Thomas F. Glick Ph.D

Faculty Publications

The water mills of New Mexico played a major role in the agricultural economy of the Río Arriba for centuries following the introduction of wheat from the Old World to the Americas. Wheat, in its ground form as flour, was a staple during the Spanish colonial period. To process raw wheat, local grist mills (molinos) were essential infrastructure as were the aceq uias (ditches) that powered them. Situated near the banks of rivers, the internal components of each mill were driven by the gravity force of water from an acequia, itself diverted from the river. Researchers have documented …

Data-Driven Framework For Predicting And Scheduling Household Charging Of Evs, Ahmad Almaghrebi

Durham School of Architectural Engineering and Construction: Dissertations, Theses, and Student Research

The increasing prevalence of EV charging poses challenges for power grid stability and quality due to high charging load demands. Without effective energy management strategies for EV charging, the simultaneous power demand from numerous EVs can strain the electric grid, impacting power quality and the wholesale electricity market. To address these challenges, this dissertation presents a comprehensive framework comprising five critical tasks: analyzing EV charging behavior, optimizing charging schedules, developing predictive models, analyzing aggregated impacts, and evaluating implications of predicted user behavior on scheduling. By examining EV charging behavior at household and public charging stations, this study aims to understand …

Framework Development For Evaluating The Impacts Of Nursing Home Acoustics On Older Adults, Brian J. Puckett

Durham School of Architectural Engineering and Construction: Dissertations, Theses, and Student Research

Nursing homes are complex, multi-faceted environments which provide necessary medical supervision and housing for older adults in need of long-term care. With cognitive and sensory impairments being common adversities faced throughout the aging process, research is needed to better understand characteristics of the built environment which may contribute to difficulties for nursing home residents. Noise, in particular, has been shown to be problematic for nursing home residents in a variety of ways including disrupting sleep, associating with behavioral and psychological symptoms of dementia, and leading to increased readmission to hospitals due to verbal communication misunderstandings. As the older adult population …

Effect Of Competitive Adsorption Between Specialty Admixtures And Superplasticizer On Structural Build-Up And Hardened Property Of Mortar Phase Of Ultra-High-Performance Concrete, Le Teng, Jingjie Wei, Kamal Khayat, Joseph J. Assaad

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

This study aims to enhance structural build-up of ultra-high-performance concrete (UHPC) without influencing the initial flowability, which is critical in repair applications (e.g., use of UHPC in thin bonded overlays for bridge deck rehabilitation). Specialty admixtures, such as a viscosity-modifying admixture (VMA), have been used to enhance the structural build-up at rest. However, the use of specialty admixtures can increase superplasticizer (SP) demand to maintain proper flowability; the synergistic effect of these admixtures on structural build-up is not well understood as the coupled admixture content can reverse the net effect on yield stress, viscosity, and thixotropy. In this study, VMAs …

Development And Characterization Of Coal-Based Thermoplastic Composite Material For Sustainable Construction, Haibin Zhang, Wenyu Liao, Genda Chen, Hongyan Ma

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

The exploitation of coal and the disposal of waste plastic present significant environmental and economic challenges that require sustainable and profitable solutions. In response, we propose a renewable construction composite material of coal-based thermoplastic composite (CTC) that can be made from low-grade coal and plastic waste. We developed and tested the hot-press fabrication method for this CTC, using coal with a maximum particle size of 4.75 mm and recycled high-density polyethylene (HDPE). The effects of the coal fraction (50–80 wt.%) on compressive properties, thermal properties, microstructure, and ecological and economic efficiencies of the CTC were investigated. Test results revealed that …

A Spike-Shaped Anchorage For Steel Reinforced Polymer (Srp)-Strengthened Concrete Structures, Xingxing Zou, Keenan L. Mcburney, Lesley H. Sneed

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

Steel reinforced polymer (SRP) composite has recently emerged as an effective and economical solution for strengthening of reinforced concrete (RC) structures. Premature debonding failure of unanchored SRP at low load levels generally governs the performance of RC structures strengthened with externally bonded SRP. Therefore, a novel yet simple spike-shaped anchorage system was proposed in this study to prevent the debonding failure of SRP and to improve the interfacial shear capacity. Experimental investigation through single-lap shear tests of SRP-concrete joints showed that the anchorage system changed the failure mode from composite debonding to fiber rupture. In addition, the anchorage system substantially …

The Spatiotemporal Variation Characteristics Of Urban Sustainability Based On The Sdgs In Yangtze River Delta, China, Xue Fang, Xinyu Shi, Tyson Keen Phillips, Peng Du, Weijun Gao

College of Architecture and the Built Environment Faculty Papers

At present, most developing countries need to improve the quality of the built environment by means of large-scale infrastructure construction, thereby promoting rapid urbanization. The quality of the built environment ((Formula presented.)) and its environmental pressure ((Formula presented.)) have become our primary focus to achieve a globally acknowledged vision of the Sustainable Development Goals (SDGs). In this study, we proposed an overall workflow by combining the proven urban sustainability ((Formula presented.)) assessment tool with the evaluation process and the analysis of the spatiotemporal dimension to investigate the urban characteristics of the 41 cities in the Yangtze River Delta. Our results …

Signal Classification Based On Analog Computing Using Mems Network, Mohammad Okour

Durham School of Architectural Engineering and Construction: Dissertations, Theses, and Student Research

The rising complexity of machine learning algorithms and Artificial Intelligence in many applications, such as smart building, has prompted the development of alternate computing options. Because of their compact size, low power consumption, and diverse functionality, microelectromechanical systems (MEMS) have emerged as a possible candidate. This thesis focuses on using MEMS networks as computing units to classify a simple signal classification task using neural network methodology. The study intends to show the potential of using MEMS as an analog computing unit by discussing the advantage of the bi-stability pull-in behavior and hysteresis to create an accurate classifier of these waveforms. …

Experiential Learning And Exposure To Professional Experience In Civil Engineering Education, Sanjay Tewari

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

Experiential learning is increasingly recognized as a crucial component of modern education, especially in fields like civil engineering, where practical skills and real-world exposure are paramount. This paper explores the various avenues through which civil engineering education can offer professional exposure and experiential learning opportunities. By analyzing the impact of senior seminars, internships, co-ops, undergraduate research, study abroad programs, service learning, student design teams, leadership positions, and involvement in technical and professional student organizations, this paper aims to underscore the importance of these approaches in shaping well-rounded and industry-ready civil engineers.

Filling The Knowledge Gaps In Mass Timber Construction: Where Are The Missing Pieces, What Are The Research Needs?, Steffen Lehmann, Paul D. Kremer

Architecture Faculty Research

As mass timber construction evolves from a niche product to a mainstream, there is an urgent need for focused research activities to support the industry and avoid duplication or overlap of work being done internationally. To identify and prioritise the future of mass timber research agenda, this article pursues responses to the following questions: What is the current state of knowledge and where are the remaining research needs in mass timber construction? For example, newcomers to mass timber often believe it is imperative to research fire performance, fire resistance, or sound transmission when these areas have been extensively explored and …

The Success Of Florence Small-Scale Walkability Vs. The Second Downfall Of Rome, Nia Mcgann

Architecture Cultures Student Papers

This is a student paper completed during an Architecture course during Summer 2023.The goal of this paper is to pinpoint certain aspects of urban spaces that are related to walkability, with a special emphasis on Florence, Italy in comparison to Rome.

The Cultural Richness Of Italy, Kevin E. López

Architecture Cultures Student Papers

This is a student paper completed during an Architecture course during Summer 2023.

Descriptive And Network Post-Occupancy Evaluation Of The Urban Public Space Through Social Media: A Case Study Of Bryant Park, Ny, Bo Zhang, Yang Song, Dingyi Liu, Zhongzhong Zeng, Shuying Guo, Qiuyi Yang, Yuhan Wen, Wenji Wang, Xiwei Shen

Architecture Faculty Research

In modern cities, urban public spaces, such as parks, gardens, plazas, and streets, play a big role in people’s social activities, physical activities, mental health, and overall well-being. However, the traditional post-occupancy evaluation (POE) process for public spaces such as large urban parks is extremely difficult, especially for long-term user experiences through observations, surveys, and interviews. On the other hand, social media has emerged as a major media outlet recording millions of user experiences to the public, which provides opportunities to inform how public space is used and perceived by users. Furthermore, unlike previous research that primarily presented descriptive characters …

Effect Of Internal Curing And Shrinkage-Mitigating Materials On Microstructural Characteristics Of Fiber-Reinforced Mortar, Kamran Aghaee, Kamal Khayat

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

Internal curing (IC) and other shrinkage mitigating materials are employed to reduce shrinkage and risk of cracking. This study investigates the efficiency of individual versus combined use of IC and shrinkage mitigating materials on key characteristics of fiber-reinforced mortar (FRM). The investigated mixtures include a 25% pre-saturated lightweight sand (LWS) that is added individually and combined with 10% CaO-based expansive agent (EA) and 2% shrinkage reducing admixture (SRA). This elucidates the synergistic effect of high content IC and EA/SRA on macro- and micro-mechanical characteristics of FRM, especially at the interface of the matrix with fibers. Mechanical properties, microstructural characteristics, and …

Viscoelastic Properties Of Fresh Cement Paste: Measuring Procedures And Influencing Parameters, Ammar Yahia, Arnaud Perrot, Dimitri Feys, Kamal Khayat, Mohammed Sonebi, Shiho Kawashima, Wolfram Schmidt

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

Fresh cement pastes behave as viscoelastic materials below the flow onset. The measurements of viscoelastic properties of fresh cement paste provide valuable insight into the dispersion of solid particles as well as the hydration kinetics at early age and its influence on the structural evolution and solidification behavior at quasi-static conditions. Monitoring the development of viscoelastic properties of fresh cement paste using dynamic oscillatory shear measurements can also elucidate the working mechanisms of chemical admixtures. These properties are efficient indicators to guide mixture proportion design and are necessary to understand the rheology and stability of concrete. In this paper, the …

Design + Build: College Of Dupage Architecture Design + Build Studio, Summer 2023, Mark A. Pearson

Faculty and Staff Scholarship

Student Design + Build Team:

• Esmeralda Arteaga
• Barakat Hasan
• Brandon Martinez
• Marco Mavrenovic
• Denise Sanchez
• Sami Syed

Faculty and Staff:

• Professor: Mark A. Pearson, AIA
• Shop Instructor: Ryan Buckel

For more information about the project, visit our Design Build 2023 website.

Home: Where The Art Was, Molly Mcclain

History: Faculty Scholarship

California plein air artist Alfred R. Mitchell (1888-1972) and his wife Dorothea Webster Mitchell designed a unique studio space in the Arts & Crafts style in their home in Golden Hill with the assistance of architect Lloyd Ruocco.

The University Of Texas At Arlington: Green Infrastructure Report, Center For Metropolitan Density, Uta Office Of Facilities Management, Uta Office Of Sustainability, City Of Arlington, Us Epa, One Architecture & Urbanism, Climate Resilience Consulting, Sherwood Design Engineers, Taner R. Ozdil

Center for Metropolitan Density Publications - Archive

On the University of Texas at Arlington campus, investing in green infrastructure is critical for managing stormwater and heat stress today and addressing the emerging challenges caused by a changing climate: shifting precipitation patterns, “cloudbursts” or flash floods, and more frequent and severe extreme heat events. In 2022, the U.S. Environmental Protection Agency provided technical assistance to UTA as part of the tenth anniversary of the Campus RainWorks Challenge, a national design competition that advances green infrastructure design on college and university campuses across the country. This report builds on UTA’s extensive engagement with the competition and envisions the campus …

"The End Of Learning Is Gracious Living": A Centennial Of Life In Mary Trowbridge Hall, Kalmazoo College, Hunter Lorain Magrum

Historic Preservation Final Projects

No abstract provided.

The Effect Of Using Data Palm Waste Fibers In Plain Concrete Mixture By Comparing Three Pre‐Treatment Techniques, Dina Rushdy M. Moawad, Rania Rushdy Moussa

Architectural Engineering

The high rates of industrial and agricultural wastes and byproduct production produced several environmental concerns in addition to increasing the risks of contaminating natural resources. The amount of organic waste has been rising over the past few decades, but it has been poorly managed, especially in smaller countries where it is either burned, improperly disposed, or thrown in landfills. Moreover, the production of concrete generates a large amount of waste that has a negative impact on our planet even though it is an extremely significant building material. The potential of developing another plain concrete mixture sample with date palm mesh …

Water-Based Settlements At The Confluence: San Gabriel & El Guique New Mexico, José A. Rivera Ph.D

Faculty Publications

After more than four centuries, the acequias of New Mexico continue to serve agricultural purposes in spite of economic, demographic, political, technological, and environmental changes. Their origins can be traced to early settlements at the confluence of the Río Grande and the Río Chama, the birthplace of Iberian acequia irrigation in New Mexico. This article demonstrates the value of water in high desert environments where mountain snowpacks feed rivers and streams that are diverted to irrigate fields in places such as San Gabriel (now Chamita) and El Guique. These and other acequia communities in the region should be protected for …

The Morphology Of Space, Robinson Badell-Garcia

Architecture Cultures Student Papers

During the time studying under the Architectural Morphologies and Mappings Summer class  based in Italy, we were posed with a scenario in which we analyzed how plazas and public  spaces were interacting with the surrounding environment as well as ourselves within the  constant flow of circulation of the site. The following paper will take a glance at the firsthand  experiences of various public spaces around Italy and how this experience contrasts from how it  originally was purposed.

On The Development Of Part-Scale Fem Modeling For Laser Powder Bed Fusion Of Aisi 316l Stainless Steel With Experimental Verification, Muhammad Arif Mahmood, Asif Ur Rehman, M. Mustafa Azeem, Abedalkader Alkhouzaam, Marwan Khraisheh

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

In laser powder bed fusion (LPBF), the effects of operating conditions on thermal gradients and residual stresses are the utmost challenges that require significant attention. The magnitudes of residual stress in the printed layers, as well as the distribution along the printed components, have not been well explained for LPBF parts. In this study, a 3D finite element thermo-mechanical model has been established to investigate the effect of operating conditions on thermal distribution, melt pool evolution, residual stress distribution, and part distortion. The printed AISI 316L stainless steel cubes have been characterized experimentally. The results showed a proportional correlation among …

Prediction Of Compressive Strength And Evaluation Of Different Theoretical Standards And Proposed Models Of Brick Columns Confined With Frp, Frcm, Or Srg System, Zuhair Al-Jaberi, John J. Myers

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

The Strength Capacity of Confined Masonry Column is One of the Topics that Need to Be Studied. in This Study, the Efficiency of using Different Types of Advanced Composite (Non-Corrosive Materials) Such as Fiber Reinforced Polymer (FRP), Fiber Reinforced Cementitious Matrix (FRCM), or Steel Reinforced Grout (SRG) in Confining Masonry Columns is Investigated. a Wide Range of Experimental Database of Masonry Column Specimens Has Been Collected from the Results that Available in Scientific Literatures. Different Theoretical Standards and Proposed Models that Used to Predict the Capacity of Masonry Columns Confined with FRP and FRCM Are Evaluated based on Collected Experimental …