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Full-Text Articles in Architecture

Do Humans Prioritize Time, Energy, Intensity… Or Something Else Altogether When Making Decisions About Walking On Level Vs. Uphill Surfaces?, Helena Gabrielle Meyer Jan 2019

Do Humans Prioritize Time, Energy, Intensity… Or Something Else Altogether When Making Decisions About Walking On Level Vs. Uphill Surfaces?, Helena Gabrielle Meyer

Undergraduate Honors Theses

During daily life, people walk from one point to another. Sometimes they choose to walk along designated paths; other times they take shortcuts. To determine how humans weigh costs like time, metabolic energy expenditure, and metabolic intensity, I studied subjects making walking decisions about walking up a hill vs. along a level surface for various distances. I hypothesized that subjects would be indifferent to walking uphill at an 8.5% grade vs. on the level when the two options required the same time or the same amount of metabolic energy.

Further, I hypothesized that subjects would walk at speeds such ...


Environmental And Reinforcement Effects On Concrete Expansion Undergoing Accelerated Alkali-Silica Reaction, David Graff Jun 2018

Environmental And Reinforcement Effects On Concrete Expansion Undergoing Accelerated Alkali-Silica Reaction, David Graff

Civil Engineering Graduate Theses & Dissertations

This thesis is a part of ongoing research investigating the effects of alkali-silica reactions (ASR) on concrete’s mechanical properties. Over 50 concrete specimens have been cast and cured to encourage ASR development to the point of damage in less than a year. Specimens include 42”×30”×10” shear specimens, 14”×14”×14” blocks, 6”×6”×14” prisms, 4”×4”×16” prisms, cylinders, and wedge splitting test specimens. Some samples are stored in a fog room with conditions of 100oF, and 95% relative humidity and wrapped in burlap wetted or submerged in 1.0M sodium hydroxide (NaOH). Other specimens are ...


Archaeology And Conservation Of The Middle Phrygian Gate Complex At Gordion, Turkey, Semih Gönen, Richard F. Liebhart, Naomi F. Miller, Elspeth Dusinberre May 2018

Archaeology And Conservation Of The Middle Phrygian Gate Complex At Gordion, Turkey, Semih Gönen, Richard F. Liebhart, Naomi F. Miller, Elspeth Dusinberre

Classics Faculty Contributions

In 2016, a project was undertaken at Gordion, Turkey, to stabilize and conserve the remains of a rubble platform built early in the Middle Phrygian period (ca. 800–700 b.c.e.) under the vast Gate Complex leading to the megarons on the Citadel Mound. In the process, aspects of Middle Phrygian building strategies came to light that enhanced our understanding gained from the original excavation in the 1950s. This article outlines the archaeology of the Middle Phrygian Gate Complex and the sophisticated internal structures that lent stability to the rubble platform upon which it was built, and examines the ...


I Am A Magic Carpet: Life In A Liminal Space, Yasmin Mazloom Apr 2018

I Am A Magic Carpet: Life In A Liminal Space, Yasmin Mazloom

Art Practices MFA Theses

The life of immigrants is discussed in two chapters: living in the country of origin and living abroad. The space that exists in between these two countries and places, is diminished and not discussed because it is not physical but more of a mental space that is rarely recognized unless it is experienced firsthand. Even though only a minority of people will understand this liminal space, it is important to be aware of its existence. Those who reside in this space need to recognize they are not alone, even if their liminal space is different from others, so that they ...


Hazard Recognition In Design: Evaluating The Effects Of Design Information On Hazard Recognition Performance, Dylan Clee Hardison Jan 2018

Hazard Recognition In Design: Evaluating The Effects Of Design Information On Hazard Recognition Performance, Dylan Clee Hardison

Civil Engineering Graduate Theses & Dissertations

The construction industry has long been known for its high injury and fatality rate. To combat this, researchers and practitioners have strived to develop new safety management methods to reduce construction safety risks. One of these methods is known as Construction Hazard Prevention through Design (CHPtD). CHPtD theory is founded in recognizing construction safety hazards during the design phase of a project so they may be removed with design solutions. Although this theory has seen substantial research and promotion as an effective safety management practice, the efficacy of the theory remains untested. To test the viability of recognizing safety hazards ...


Reduced Order Models For Rapid Analysis Of Ambient Loops For Commercial Buildings, Nicholas Lee Long Jan 2018

Reduced Order Models For Rapid Analysis Of Ambient Loops For Commercial Buildings, Nicholas Lee Long

Civil Engineering Graduate Theses & Dissertations

Fifth-generation district heating and cooling (5GHDC) systems are the next generation of district systems which rely on water approaching indoor ambient temperatures (≈20-25C). The lower temperatures allow for additional heat sources to be added to the network, allowing for some buildings to become prosumers (e.g. data centers, supermarkets through refrigeration heat rejection). The energy performance of buildings served by a 5GDHC network is a strong function of the inlet temperature, which corresponds to the network supply temperature. Optimizing the network’s efficiency and its grid topology leads to an evaluation of many possible network topologies, which is numerically ...


Performance Measures For Alternative Project Delivery Methods On Highway Transportation Projects, Alan J. Therrien Jan 2018

Performance Measures For Alternative Project Delivery Methods On Highway Transportation Projects, Alan J. Therrien

Civil Engineering Graduate Theses & Dissertations

The use of alternative project delivery methods such as Design-Build (D-B) and Construction Manager/General Contractor (CM/GC) is becoming an effective solution for state transportation agencies to deliver highway construction projects. These delivery methods have been introduced to increase efficiency and innovation, while decreasing costs and schedule durations. Studies have explored the benefits of D-B and CM/GC delivery methods, but they have not explored how to best measure the performance of these projects when viewed in aggregate as a program. Through a survey of 41 transportation practitioners across the country, this study addresses that need by identifying 6 ...


The Business Value Of Buildings, An Exploratory Study, Morgan J. Westbrook Jan 2018

The Business Value Of Buildings, An Exploratory Study, Morgan J. Westbrook

Civil Engineering Graduate Theses & Dissertations

This paper examines current methods for determining the value associated with building investments. The purpose of this research is to model the current practice of value creation as it applies to buildings. Specifically, the research aims to explore how agents of value deliver financial returns from building investments. Analysis of interviews with current decision makers shows a Simple Payback analysis to be the determining factor for most decisions. Along with exploration into current practice, this thesis presents a potential model, developed with a group of both industry and academic members, for building valuation that incorporates a more holistic view of ...


Evaluating The Value Of Intelligent Building Systems: A Review And Case Study, Cory Mosiman Jan 2018

Evaluating The Value Of Intelligent Building Systems: A Review And Case Study, Cory Mosiman

Civil Engineering Graduate Theses & Dissertations

The overall goal of this thesis is to provide a high level framework and motivation for intelligent building development by using data available in typical base building systems and finding synergies between these data streams to evaluate questions progressing beyond the traditional building operational metrics. This is done by exploiting a highly underutilized data point in buildings, the occupants, and relating this to the business objectives of tenants, property managers, and other key stakeholders to develop more interesting and valuable key performance indicators.

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This framework is then deployed in a living laboratory, commercial office environment in Boulder, CO ...


Probabilistic Assessment Of The Benefits Of Retrofitting Nonductile Concrete Buildings In Terms Of Regional Losses, Samantha Michelle Grey Jan 2018

Probabilistic Assessment Of The Benefits Of Retrofitting Nonductile Concrete Buildings In Terms Of Regional Losses, Samantha Michelle Grey

Civil Engineering Graduate Theses & Dissertations

Los Angeles, California, is a densely populated city located in an area of high seismic hazard. The region’s aging building stock has contributed to concerns about the seismic resilience of the community. Recent research has highlighted the vulnerability of nonductile concrete buildings and their associated risk to safety and post-disaster recovery. Currently, there are approximately 1500 nonductile concrete buildings in the city of Los Angeles, motivating discussions for retrofit policies to mitigate the risk stemming from these buildings. While the understanding of individual building retrofit is important for the building owner, investor, and/or tenants, the evaluation of structural ...


A Life Cycle Assessment And Life Cycle Cost Analysis Of Colorado Department Of Transportation Concrete Mixtures, Morgan Talmage Jan 2018

A Life Cycle Assessment And Life Cycle Cost Analysis Of Colorado Department Of Transportation Concrete Mixtures, Morgan Talmage

Civil Engineering Graduate Theses & Dissertations

This thesis presents a comprehensive life cycle assessment of all 1262 pre-approved Colorado Department of Transportation (CDOT) concrete mixture designs and compares the results with the published National Ready Mix Concrete Association (NRMCA) sustainability national and regional benchmarks. This thesis provides a cradle-to-gate comparative life cycle assessment (LCA), which accounts for impacts occurring during raw material supply, transportation, and manufacturing of the concrete mixtures. The environmental impacts compared in this LCA are global warming potential, ozone depletion potential, acidification potential, eutrophication potential, smog potential, total primary energy consumption, and non-renewable energy consumption. In addition, a life cycle cost analysis is ...


(De)Constructing Concrete: Meaning And Materiality In Postcolonial India, Siddharth Menon Jan 2018

(De)Constructing Concrete: Meaning And Materiality In Postcolonial India, Siddharth Menon

Geography Graduate Theses & Dissertations

Across rural India today, house building practices are rapidly transforming as communities discard traditional(kuccha) building materials like mud and bamboo and use modern (pucca) ones like concrete and steel. Within the elite urban discourse in India, the use of concrete is perceived as “bad” and “unpleasant,” due to massive energy costs associated with its production. Moreover, the association of concrete with ideas of modernity are considered primary reasons for these changes. However, not much is known about the circumstances under which changes in building material technology take place and about how these transformations play out in the daily lives ...


Designing An Immersive World: Exploring Theme Parks Through Hayao Miyazaki's Spirited Away, Elyse Skinner Jan 2018

Designing An Immersive World: Exploring Theme Parks Through Hayao Miyazaki's Spirited Away, Elyse Skinner

Undergraduate Honors Theses

Most theme parks today have a ride component, whether it is a themed roller coaster or water park, but the entertainment design industry has not focused as much on designing interactive experiences without the need for thrill. Experience design and themed entertainment design focus on how thematic elements create a somatic and immersive environment. Design, like entertainment, is constantly transforming to fit the needs of its visitors. The design of entertainment spaces needs to be considered through multiple lenses and this project seeks to understand design elements that are necessary for a successful immersive design. The film Spirited Away, by ...


Reframing The Narrative: Urban Art, Civil Discourse, And #Optoutside, Natalie Bognanno Jan 2018

Reframing The Narrative: Urban Art, Civil Discourse, And #Optoutside, Natalie Bognanno

Undergraduate Honors Theses

The #OptOutside campaign used by popular lifestyle brand REI promotes the cause people should utilize their time and access to the natural landscapes to participate in outdoor activities. As this idea has become popularized and promoted, communities like Boulder, who maintain similar values of the outdoor lifestyle, have become a symbol for this ideology. But when we apply this narrative to the entire community, including the homeless segment, there exists a divide, where the weight of #OptOutside in a voluntary and recreational sense for everyone, is lost because it does not fit the ideas and values of the homeless population ...


Materializing Absence: Traces Of Long's Farm, Michael O. Foster Nov 2017

Materializing Absence: Traces Of Long's Farm, Michael O. Foster

Art and Art History Graduate Contributions

No abstract provided.


One Icon, Two Audiences: How The Denver Art Museum Used Their New Building To Both Brand The City And Bolster Civic Pride, Georgia Lindsay Nov 2017

One Icon, Two Audiences: How The Denver Art Museum Used Their New Building To Both Brand The City And Bolster Civic Pride, Georgia Lindsay

Program in Environmental Design Faculty Contributions

Iconic architecture can draw global attention while simultaneously speaking to local audiences. In 2006, the Denver Art Museum opened an iconic new wing that help brand the city as a cultural city for both external and internal audiences. Based on analysis of interviews with stakeholders and archival documents, this paper demonstrates that the Hamilton Building project was used both to brand the city for potential tourists and to engender civic pride in Denver residents. This research provides a complex understanding of what roles iconic architecture plays in a city.


Bricks, Branding, And The Everyday: Defining Greatness At The United Nations Plaza In San Francisco, Georgia Lindsay Jul 2017

Bricks, Branding, And The Everyday: Defining Greatness At The United Nations Plaza In San Francisco, Georgia Lindsay

Program in Environmental Design Faculty Contributions

After over a decade of reports, designs, and public outreach, the United Nations Plaza in San Francisco was dedicated in 1976. Using historical documents such as government reports, design guidelines, letters, meeting minutes, and newspaper articles from archives, I argue that while the construction of the UN Plaza has failed to completely transform the social and economic life of the area, it succeeds in creating a genuinely public space. The history of the UN Plaza can serve both as a cautionary tale for those interested in changing property values purely through changing design, and as a standard of success in ...


Hygromorphic Scales For Use In Water From Morning Dew And Elementary Model Of Hydrogel Expansion Properties, Nate Margolis Jan 2017

Hygromorphic Scales For Use In Water From Morning Dew And Elementary Model Of Hydrogel Expansion Properties, Nate Margolis

Materials Science & Engineering Graduate Theses & Dissertations

Secure access to water is a growing problem in the world today. Millions of people do not have contact with fresh or clean water for drinking. Consuming dirty water leads to many illnesses and deaths every year. When water is scarce people are less likely to follow basic hygiene which also adds to the problem of sickness from water. Currently most of the population gets their water from run-off such as rivers, lakes and other fresh water bodies. Aquafers can also provide water, however, once they do not replenish themselves so once they are empty they will no longer provide ...


Analysis Of Energy Efficient Curtain Wall Design Considerations In Highrise Buildings, Kate M. Dumez Jan 2017

Analysis Of Energy Efficient Curtain Wall Design Considerations In Highrise Buildings, Kate M. Dumez

Civil Engineering Graduate Theses & Dissertations

This study evaluates design variables associated with curtain walls in highrise buildings across the various climate zones in the United States. The study evaluates the potential energy and cost impacts of each critical variable related to façade design in order to provide guidance as to what variables offer the greatest potential to achieve energy cost and consumption savings throughout the life of the facility. A parametric analysis was performed to determine the potential consumption and cost impacts of an optimized façade. Additionally, impacts related to equipment sizing and occupant comfort are evaluated across the climate zones and the various impacts ...


Effect Of Hydration And Confinement On Micro-Structure Of Calcium-Silicate-Hydrate Gels, Harish Kumar Gadde Jan 2017

Effect Of Hydration And Confinement On Micro-Structure Of Calcium-Silicate-Hydrate Gels, Harish Kumar Gadde

Civil Engineering Graduate Theses & Dissertations

Calcium-silicate-hydrate(C-S-H) gel is a primary nano-crystalline phase present in hydrated Ordinary Portland Cement (OPC) responsible for its strength and creep behavior. Our reliance on cement for infrastructure is global, and there is a need to improve infrastructure life-times. A way forward is to engineer the cement with more durability and long-term strength. The main purpose of this research is to quantify the micro-structure of C-S-H to see if cement can be engineered at various length scales to improve long-term behavior by spatial arrangement. We investigate the micro-structure evolution of C-S-H in cement as a function of hydration time and ...


Development Of A Simplified Heat And Moisture Transfer Model For Residential Buildings, Joowook Kim Jan 2017

Development Of A Simplified Heat And Moisture Transfer Model For Residential Buildings, Joowook Kim

Civil Engineering Graduate Theses & Dissertations

A large number of building energy simulation programs are used to evaluate indoor conditions and energy performance of buildings. Every building energy modeling tool calculates the heat and moisture exchange among the outdoor environment, the building envelope, and indoor environments as a fundamental component of heating, ventilating, and air conditioning (HVAC) loads. While all tools account for moisture flow through the envelope by infiltration, almost no users calculate moisture diffusion through the envelope or moisture storage in the building due to excessive computation time and unavailable material properties. However, research has shown, and work in this dissertation has confirmed, that ...


Method For Quantifying The Spectral Based Error In Luminance Measurements, Katherine Louise Teman Jan 2017

Method For Quantifying The Spectral Based Error In Luminance Measurements, Katherine Louise Teman

Civil Engineering Graduate Theses & Dissertations

The accuracy of luminance measurements throughout the visible spectrum was investigated by breaking down a broadband source into narrow bandwidth sections. Measurements from a standard luminance meter were then compared to a derived luminance found with an illuminance spectrophotometer. High Dynamic Range Images (HDRI) of the narrow bandwidth sources were also taken in order to evaluate the spectrally dependent accuracy of HDRI as a luminance measurement tool. These results were evaluated for nine saturated color sources throughout the visible spectrum, as well as a white LED. The saturated sources were expected to produce errors in luminance measurements, based on previous ...


Prediction Of Urban-Scale Building Energy Performance With A Stochastic-Deterministic-Coupled Approach, Hyunwoo Lim Jan 2017

Prediction Of Urban-Scale Building Energy Performance With A Stochastic-Deterministic-Coupled Approach, Hyunwoo Lim

Civil Engineering Graduate Theses & Dissertations

Urban areas consume two-thirds of the world's energy and account for 71% of global greenhouse gas emissions. In the U.S., residential and commercial buildings consume 22% and 19% of the total energy use, respectively. In response to current energy and environmental issues, policymakers have been actively engaged in the establishment of regulations and incentives to promote strategies for energy and greenhouse gas reduction in urban areas. To assist such decision makings requires an accurate and dynamic prediction and analysis of urban energy needs and developing trends, especially for building stocks.

Five primary challenges exist in modeling urban level ...


Energy Performance Anlaysis Of Transparent Wood Composite-Based Glazing Systems In Commerical Buildings, Joseph Hoberg Arehart Jan 2017

Energy Performance Anlaysis Of Transparent Wood Composite-Based Glazing Systems In Commerical Buildings, Joseph Hoberg Arehart

Civil Engineering Graduate Theses & Dissertations

Transparent wood composites (TWCs) have 15% the thermal conductivity of silicon-based glass and can be used in alternative glazing systems. Single-paned and double-paned TWC based window assemblies were developed for implementation in commercial reference buildings of three vintages (Pre-1980, Post-1980, and Post-2004) located in 15 climate zones. Energy simulations were performed for baseline buildings and compared against buildings with TWC based glazing systems in place of traditional glass based glazing. In addition, a cost analysis was performed for lab-scale production of TWCs. Results showed that buildings with TWC based windows reduced space conditioning by up to 33.3%. Commercial buildings ...


A Comparison Of Techniques Used For The Removal Of Lens Flare Found In High Dynamic Range Luminance Measurements, Sarah Frances Safranek Jan 2017

A Comparison Of Techniques Used For The Removal Of Lens Flare Found In High Dynamic Range Luminance Measurements, Sarah Frances Safranek

Civil Engineering Graduate Theses & Dissertations

The presence of lens flare has been identified as a limitation associated with luminance measurements obtained using High Dynamic Range Imaging (HDRI) technology. Current documentation is lacking on the magnitude of error lens flare has on luminance values as well as the methods for lens flare removal. The purpose of this study is to provide an evaluation of the effectiveness of two existing lens flare removal techniques. The first technique involves the implementation of blind deconvolution during image postprocessing within commonly used HDRI software. The second technique aims to separate and extract lens flare from luminance values which are true ...


A Mathematical Model For Predicting The Carbon Sequestration Potential Of Exposed Ordinary Portland Cement (Opc) Concrete, Adriana Souto Martinez Jan 2017

A Mathematical Model For Predicting The Carbon Sequestration Potential Of Exposed Ordinary Portland Cement (Opc) Concrete, Adriana Souto Martinez

Civil Engineering Graduate Theses & Dissertations

This study concerns the development of a simple mathematical model that calculates the theoretical carbon sequestration potential of exposed ordinary portland cement (OPC) concrete. OPC concrete sequesters non-trivial amounts of carbon dioxide (CO2) via carbonation – a chemical reaction between cement paste and atmospheric CO2. Formulated by the reaction chemistries of cement hydration and carbonation, the model accounts for cement type and content, exposure, time, and type and quantity of supplementary cementitious materials (SCMs). Once validated with data from literature, the model is implemented to investigate the effect of these factors and the influence of compressive strength and geometry, namely surface-area-to-volume ...


A Mathematical Model For Predicting The Carbon Sequestration Potential Of Exposed Ordinary Portland Cement (Opc) Concrete, Adriana Souto Martinez Jan 2017

A Mathematical Model For Predicting The Carbon Sequestration Potential Of Exposed Ordinary Portland Cement (Opc) Concrete, Adriana Souto Martinez

Civil Engineering Graduate Theses & Dissertations

This study concerns the development of a simple mathematical model that calculates the theoretical carbon sequestration potential of exposed ordinary portland cement (OPC) concrete. OPC concrete sequesters non-trivial amounts of carbon dioxide (CO2) via carbonation – a chemical reaction between cement paste and atmospheric CO2. Formulated by the reaction chemistries of cement hydration and carbonation, the model accounts for cement type and content, exposure, time, and type and quantity of supplementary cementitious materials (SCMs). Once validated with data from literature, the model is implemented to investigate the effect of these factors and the influence of compressive strength and geometry ...


Model Predictive Control For Retrofit Rooftop Unit Control, Paul Weskalnies Jan 2017

Model Predictive Control For Retrofit Rooftop Unit Control, Paul Weskalnies

Civil Engineering Graduate Theses & Dissertations

This thesis explores the viability of model predictive control strategies for a retrofit rooftop unit control solution developed by start-up technology provider Transformative Wave, called the CATALYST. This research has been conducted in conjunction with a research project funded by the Wells Fargo Innovation Incubator program, in collaboration with the National Renewable Energy Laboratory (NREL) to enhance the commercial retrofit rooftop unit control solution with optimum control development. The goal is to develop a simple, easily implementable model predictive controller to further reduce energy costs in commercial retail buildings. This thesis extends previously developed building performance simulation models and model ...


A Dual Approach To Evaluating The Physical And Perceptual Impact Of Exterior Lighting Renovations On Denver's Historic 16th Street Mall, Shelby White Jan 2017

A Dual Approach To Evaluating The Physical And Perceptual Impact Of Exterior Lighting Renovations On Denver's Historic 16th Street Mall, Shelby White

Civil Engineering Graduate Theses & Dissertations

Denver's 16th Street Mall was first introduced as the retail and commercial heart of the city in the 1980’s through the distinctive design of I.M. Pei and Partners. However, in recent years, the need for a revitalization through an ambitious urban renewal plan has become apparent as years of "wear and tear" combined with rapid urban growth and development have begun to take a toll on the beloved mall. In recent years, the City of Denver has allocated funds to renovate this Central Denver corridor, in an effort at revitalizing this urban area. One of the central ...


Development Of A Simplified Heat And Moisture Transfer Model For Residential Buildings, Joowook Kim Jan 2017

Development Of A Simplified Heat And Moisture Transfer Model For Residential Buildings, Joowook Kim

Civil Engineering Graduate Theses & Dissertations

A large number of building energy simulation programs are used to evaluate indoor conditions and energy performance of buildings. Every building energy modeling tool calculates the heat and moisture exchange among the outdoor environment, the building envelope, and indoor environments as a fundamental component of heating, ventilating, and air conditioning (HVAC) loads. While all tools account for moisture flow through the envelope by infiltration, almost no users calculate moisture diffusion through the envelope or moisture storage in the building due to excessive computation time and unavailable material properties. However, research has shown, and work in this dissertation has confirmed, that ...