Architecture Commons^™

Heritagutopia: A New Utopian Paradigm, Luca Donner, Francesca Sorcinelli

All Works

The progress of humanity has always, and sometimes even unconsciously, been confronted with the concept of utopia at the social, economic, political, and urban level. The strength of every utopian vision lies in the disruptive factor inherent in the idea of metamorphosis of the status quo. In the urban context, it represents the pillar on which the vision of modern society and its city are based and understood as potential and progress for mankind. Authors such as Bauman, Bloch, Calvino, More, Mumford, Tafuri, and others, have formed the theoretical framework of the dialectic on which this study is based. As …

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 …

Coarse-Work: An Investigation Into The Impact Of Materiality In The Interior Educational Setting, Isabel G. Robb

Honors Theses

Education design in modern suburban America curates learning environments that are cold and impersonal, being used more as a place to keep youth during the day than as a place where they can truly learn about and understand the world around them. This learning environment does not suit all students, especially those with learning disabilities, and it leaves little room for flexibility in classroom usage.

Focusing on creating a learning environment where all students feel welcome and are able to effectively learn, this projective design research project aims to provide a comprehensive intervention through the built environment and interior design, …

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 …

Mapping Stratcom: The Architecture Of Offutt, The U.S. Military, And Strategic Command, Anna Miles

Honors Theses

Architecture and the military have always been intertwined. The built environment both on and off U.S. military installations responds to the events, history, and influences of the military. This project explores one example of this by investigating the history of the United States Strategic Command (USSTRATCOM), headquartered at Offutt Air Force Base in Nebraska, through the lens of architecture.

When exploring USSTRATCOM, this project aims to understand not only its history, but also its impact: on Offutt, on the world, and most importantly, on architecture. Firstly, the project explores the history of the military in the state of Nebraska and …

Space & Capital Management Services Presentation, Ryan Ward, Tricia A. Hobbs

Office of Facilities Management

Slides from presentation given by Ryan Ward, Director of Space and Capital Management Services, University of Maine Office of Facilities Management and Tricia A. Hobbs, University Designer/Architect & Space Manager to the professional staff of Raymond H. Fogler Library on April 25, 2024.

White Paper - Sustainable Housing For Downtown Jacksonville, Jose David Caicedo Gallego

Dean's Leadership Council Library Research Prize

This paper examines the issue of sustainable housing in downtown Jacksonville, focusing on the role of the Downtown Investment Authority (DIA). Established in 2012, the DIA serves to drive growth, and dynamic several aspects in the downtown core. The paper delves into the impacts of the lack of affordable housing on residents, businesses, and visitors, highlighting its implications for health, well-being, and economic prosperity. Drawing on scholarly research and empirical evidence, it exposes the importance of housing policies as determinants of health and advocates for integrated approaches to housing development. Additionally, the paper provides data-driven insights into population demographics, housing …

Health And Healthcare: Designing For The Social Determinants Of Health And Blue Zones In North Nashville, Rebecca Tonguis, Honor Thomas, Olivia Hobbs

Belmont University Research Symposium (BURS)

Owned by North Nashville’s First Community Church, a now empty site in the Osage-North Fisk neighborhood of North Nashville has been identified as a potential site for a new location of The Store, in addition to a community-centric architectural development based on the social determinants of health and informed by the principles behind Blue Zones, the locations with the highest lifespans in the world. Opened by Brad Paisley and Kimberly Williams-Paisley, The Store is a free grocery store that “allow[s] people to shop for their basic needs in a way that protects dignity and fosters hope”, for which North Nashville …

Photography, Architecture, And Environment: An Architectural Analysis Of Edward Ruscha’S 26 Gasoline Stations, Rebecca Tonguis

Belmont University Research Symposium (BURS)

This presentation explores Edward Ruscha’s photobook 26 Gasoline Stations through an architectural lens. Specifically, it treats Ruscha’s work as historic evidence of how consumption, industry, and commodity have infiltrated all kinds of environmental contexts through architectural manifestations. Known for being the first artist’s book, 26 Gasoline Stations ambiguously exists as both fine art and documentation of everyday conditions, with the overall graphic character highlighting its perceived focus on overarching narrative. Since gasoline stations are the primary subject of each of the 26 photographs, the subject of this work is arguably architecture, suggesting that the historic relationship between mass gas consumption—or …

Bachelor Of Architecture Submission Slides, Heather Hankins

Digital Commons Training Materials

Submission Guide for Bachelor of Architecture students.

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 …

A Review On Recent Deep Learning-Based Semantic Segmentation For Urban Greenness Measurement, Doo Hong Lee, Hye Yeon Park, Joonwhoan Lee

Landscape Architecture and Environmental Planning Student Research

Accurate urban green space (UGS) measurement has become crucial for landscape analysis. This paper reviews the recent technological breakthroughs in deep learning (DL)-based semantic segmentation, emphasizing efficient landscape analysis, and integrating greenness measurements. It explores quantitative greenness measures applied through semantic segmentation, categorized into the plan view- and the perspective view-based methods, like the Land Class Classification (LCC) with green objects and the Green View Index (GVI) based on street photographs. This review navigates from traditional to modern DL-based semantic segmentation models, illuminating the evolution of the urban greenness measures and segmentation tasks for advanced landscape analysis. It also presents …

Slr Practitioner Needs, Daniella Hirschfeld, Kelli Archie, Emilio Mateo, James C. Arnott, Julie A. Vano

Browse all Datasets

As sea levels continue to rise, practitioners at the local and regional scale are under increased pressure to reduce risks to people and property posed by the threats of sea-level rise (SLR) and associated impacts. To achieve this, a transdisciplinary approach that integrates data-driven research with local knowledge and community engagement is necessary. As such, it is imperative the science community understands the needs of practitioners. However, there has been little qualitative assessment of adaptation practice in coastal areas, especially with a focus on the needs of practitioners in making use of current SLR science. Our mixed-methods approach began with …

From Affordable To Equitable: An Analysis Of Affordable Housing As A Solution In A National Shortage, Machelle Cooper

Honors Theses

Amid a national shortage of housing, the United States needs housing solutions that both remedy infrastructural concerns imposed by outdated standards of urban development and address a widespread lack of equity across several urban areas. Conventional approaches to public housing have proven ineffective in promoting equitable change within underdeveloped contexts. These areas desire innovative, intentional interventions that adequately address all aspects of their social, economic, and environmental needs that existing patterns of development have neglected for decades. Public and state sentiments regarding areas of concentrated poverty and segregation in urban space must change for a future of equitable housing to …

Southern Nevada Regional Industrial Study, Brookings Mountain West, Center For Business And Economic Research, Transportation Research Center

Policy Briefs and Reports

Recognizing the ongoing need to diversify the Southern Nevada economy, in 2023 GOED commissioned Brookings Mountain West, the UNLV Center for Business and Economic Research, and the UNLV Transportation Research Center to evaluate how Southern Nevada can leverage its geography and connectivity to neighboring states and metros at the megapolitan level to pursue industrial opportunities in the face of shifting global supply chains, diminishing developable land, the need for efficient management of the regional water supply, and the availability of unprecedented federal resources to support clean energy development, manufacturing, electrification of transportation systems, and supply-chain resiliency.

The study builds on …

Comprehensive Numerical Modeling Of Prestressed Girder Bridges Under Low-Velocity Impact, Mohamed T. Elshazli, Mohanad M. Abdulazeez, Mohamed Elgawady, Ahmed Ibrahim

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

Accidental Collisions Involving Over-Height Trucks That Exceed Vertical Clearance Limits And Bridge Superstructures Frequently Happen, Resulting In Compromised Girders And Potential Threats To Structural Safety And Performance. The Numerical Simulation Of Large-Scale Prestressed Girder Bridge Collisions Poses Challenges Due To The Associated Nonlinearities, As Well As The Limited Availability Of Large-Scale Experimental Testing Data In The Literature Due To Cost And Complexity Constraints. This Study Introduces A Numerical Modeling Approach To Efficiently Capture The Response Of Prestressed Girder Bridges Under Lateral Impact Loads. A Finite Element (FE) Model Was Developed Using LS-DYNA And Meticulously Validated Against Experimental Data From The …

Methodology To Design Eco-Friendly Fiber-Reinforced Concrete For 3d Printing, Haodao Li, Alfred Addai-Nimoh, Eric Kreiger, Kamal H. Khayat

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

Greater use of locally available supplementary cementitious materials (SCM) to reduce cement content and addition of fiber reinforcement can enhance the performance of 3D printing (3DP) technology in construction. In this study, three classes of eco-friendly 3D printable fiber-reinforced mixtures were targeted, namely ultra-high-performance concrete (UHPC), high-performance concrete (HPC), and conventional concrete (CC). A step-by-step methodology was proposed to maximize the substitution rate of cement with SCM and limestone filler and optimize fiber volume for the successful development of 3D printable fiber-reinforced materials. Binder combinations were initially investigated on the paste level to determine the packing density and robustness. Selected …

Red Stone, Invisible Legacy: Goan Aesthetics In Charles Correa's Design, Vishvesh Prabhakar Kandolkar, R. Benedito Ferrão

Arts & Sciences Articles

Excerpt from publication: "The obituary for Charles Correa (1930-2015) in the New York Times hails him as an ''American trained" architect, who reached "deep into India's past for inspiration in producing work that is notable for its imagination and breadth."1 Of course, Correa's design practice drew from "Indian" traditions, including the use of the mandala, a sacred geometric configuration associated with Buddhism. The visibility of mandalas in the architect's designs questions the alignment of his legacy with an Indianness that can only be understood as heralding a mythic Hindu past..."

Natural Gas Induced Vegetation Stress Identification And Discrimination From Hyperspectral Imaging For Pipeline Leakage Detection, Pengfei Ma, Ying Zhuo, Genda Chen, Joel G. Burken

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

Remote Sensing Detection of Natural Gas Leaks Remains Challenging When using Ground Vegetation Stress to Detect Underground Pipeline Leaks. Other Natural Stressors May Co-Present and Complicate Gas Leak Detection. This Study Explores the Feasibility of Identifying and Distinguishing Gas-Induced Stress from Other Natural Stresses by Analyzing the Hyperspectral Reflectance of Vegetation. the Effectiveness of This Discrimination is Assessed Across Three Distinct Spectral Ranges (VNIR, SWIR, and Full Spectra). Greenhouse Experiments Subjected Three Plant Species to Controlled Environmental Stressors, Including Gas Leakage, Salinity Impact, Heavy-Metal Contamination, and Drought Exposure. Spectral Curves Obtained from the Experiments Underwent Preprocessing Techniques Such as Standard …

Characterization Of Alkali-Silica Reaction (Asr) Products And C-S-H Using Swir Spectroscopy For Nondestructive Detection Of Asr, Pengfei Ma, Wenyu Liao, Ying Zhuo, Hongyan Ma, Yanping Zhu, Genda Chen

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

This study explores the feasibility of characterizing alkali-silica reaction (ASR) products and calcium silicate hydrates (C-S-H) from short-wave infrared (SWIR) spectroscopy. ASR products and C-S-H samples with different Ca/Si ratios were synthesized and analyzed through XRD, 29Si nuclei magnetic resonance (NMR) and SWIR spectroscopy. Fourier-transform infrared spectroscopy (FTIR) was collected to help interpret the results from the SWIR spectroscopy. The obtained spectroscopic features were applied to quantify the ASR product abundance denoted by the length expansion of mortar bars after an accelerated ASR test. The results show that the SWIR spectra of the synthetic ASR gels are similar regardless of …

Evolution Of Sbs-Modified Asphalt Performance Under Aging And Rejuvenation Cycle Conditions, Ke Shi, Feng Ma, Jenny Liu, Zhen Fu, Ruimeng Song, Dongdong Yuan, Aboudou Wassiou Ogbon

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

Improving the poor long-term service performance of rejuvenated SBS-modified asphalt (REF-LT) is highly challenging. In this study, a blend of aged and virgin binders was used to rejuvenate REF-LT and the evolution of the asphalt performance was observed during regeneration and reaging processes. An SBS-modified asphalt (SBM) and base asphalt (BA) were mixed with REF-LT in specified ratios to prepare SBM- and BA-rejuvenated asphalts. The rejuvenated asphalts were subjected to short- and long-term aging. The high/low-temperature rheological properties, fatigue resistance, rejuvenation mechanism, and changes in the functional groups of the rejuvenated and reaged asphalts were characterized using a dynamic shear …

Numerical And Experimental Investigation Of Negative Stiffness Beams And Honeycomb Structures, Yasser Darwish, Mohamed A. Elgawady

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

Metamaterial structures that exhibit negative stiffness (MSNS) behavior have shown the potential to be used as energy dissipation systems in different applications. Negative stiffness honeycomb structures consist of multiple pre-buckled beams that snapping through from one pre-buckled mode to another buckled mode, when subjected to transverse loads, displaying negative stiffness, and dissipating a significant portion of the input energy. This paper presents finite element models (FEMs) developed to investigate the performance of negative stiffness pre-buckled beams and honeycombs. The FEMs were validated using experimental results of single pre-buckled beams and honeycomb structures. The experimental testing of the pre-buckled beams was …

Synergistic Effect Of Macro Synthetic Fiber And Shrinkage-Reducing Admixture On Engineering Properties Of Fiber-Reinforced Super-Workable Concrete, Jingjie Wei, Nima Farzadnia, Kamal H. Khayat

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

This study aims to enhance fiber-reinforced super-workable concrete (FR-SWC) by optimizing the system of shrinkage-reducing admixture (SRA) and macro-synthetic fiber (MSF) for low shrinkage and uncompromised mechanical properties. A factorial design approach was employed to model the effect of fiber content, SRA dosage, and combined ratios of two types of MSF on performance of FR-SWC. MSF content had the greatest impact on mechanical properties, followed by SRA and MSF combination. Using MSF increased equivalent flexural strength ratio by 310% compared to the control mixture, regardless of MSF combination and SRA. SRA had the most significant effect on drying shrinkage, followed …

From Pumping To Deposition: A Comprehensive Review Of Test Methods For Characterizing Concrete Printability, Ali Fasihi, Nicolas A. (Ali) Libre

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

3D concrete printing (3DCP) technology has gained significant attention in the construction industry due to its potential to revolutionize the way buildings are designed and constructed. However, successful application of 3DCP requires robust standard test procedures to characterize the printability of concrete. Printability is a measure of workability for a printing material in the 3DCP process, which is characterized by pumpability, extrudability, and buildability. This paper presents a comprehensive review of the test methods that could be used for material characterization during various printing steps, including pumping, extrusion, and layer deposition. The underlying mechanisms relevant to each step, key governing …

The Juan De La Cruz Molino: Folk Architecture At El Güique-Estaca New Mexico, José A. Rivera Ph.D

Faculty Publications

El Güique and Estaca are twin communities just north of the confluence of the Río Grande and the Río Chama. Like other Spanish colonial settlements in the historic Río Arriba, acequia-based agriculture was essential for food production in this high desert region of the northern Río Grande. Along with the construction of acequias, molinos (grist mills) were built to grind wheat into flour as part of the subsistence farming economy of the times. While acequias were communal, molinos most often were constructed and operated as private enterprises by local millers like the case of Juan de la Cruz Borrego and …

Research Space At Public R1 Universities In The Mountain West, 2021, Zachary Billot, Jesse Fager-Larsen, Caitlin J. Saladino, William E. Brown Jr.

Higher Education

This fact sheet reports data on research space square footage for public R1 universities in five Mountain West States: Arizona, Colorado, Nevada, New Mexico, and Utah. This fact sheet includes national rankings of public R1 universities in the Mountain West states based on total square footage and reports square footage for individual research disciplines for the two public R1 universities in Nevada: the University of Nevada, Las Vegas (UNLV) and the University of Nevada, Reno (UNR).

Use Of Hybrid Fibers And Shrinkage Mitigating Materials In Scc For Repair Applications, Kamran Aghaee, Kamal H. Khayat

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

Self-consolidating concrete (SCC) is used to repair structural elements with congested reinforcement or restricted access to placement and consolidation. In addition to adequate flowability, passing ability, filling capacity, and stability, adequate bonding to the substrate and reinforcing bars, low shrinkage and cracking resistance are required for successful repair. This study employs various shrinkage mitigating materials, including expansive agent (EA), coupled use of EA with shrinkage reducing admixture (SRA), and EA with pre-saturated lightweight sand (LWS) to fulfill these requirements. The effect of these materials on the performance of SCC made with a hybrid synthetic (PP) fiber and a hybrid steel-synthetic …