Architectural Engineering Commons^™

Appraisal Of The Sustainability Of Compressed Stabilized Earthen Masonry, Elena Claire Hoff

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

Compressed stabilized earthen block (CSEB) masonry presents an environmentally and economically sustainable alternative to conventional residential construction materials such as clay brick masonry or concrete masonry (CMU). Earthen masonry is locally sourced and manufactured on site, thus minimizing costs associated with raw material extraction and transportation. Furthermore, CSEB requires very little use of electricity and water during both the manufacture and construction processes and it has excellent thermal resistivity while in use, allowing for additional cost and energy savings during most phases of its life cycle. Analyzing the life cycle trade-offs in a comparative study between CSEB and clay brick …

Investigation Of Subjective Perception And Objective Metrics Of Acoustic Room Diffusion, Jay Michael Bliefnick

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

While a variety of assessment methodologies have been proposed to quantify acoustic diffusivity within rooms, a link between these and the perception of diffusion has not been fully established. This study investigated various ways of analyzing diffusion, through both human perception and objective metrics. Numerous impulse response measurements were collected from a physical acoustics testing facility designed for diffusion research. This space featured reversible absorptive/diffusive/reflective wall panels, which allowed numerous testing configurations. One such setup investigated how changing the diffusivity of an isolated wall surface impacted diffusive room conditions. Alternatively, the effects diffuser configurations had on diffusive room conditions were …

Impact Of Cross Section, Web Reinforcement And Load History On The Seismic Performance Of Slender Concrete Walls, Anahid A. Behrouzi

Architectural Engineering

Many reinforced concrete buildings in seismic regions employ reinforced concrete shear walls as part of the lateral force resisting system and these walls often have non-planar cross-sectional geometries. To date, the majority of experimental tests on slender concrete walls have been conducted on planar walls which have been subject to low shear stress demands. An experimental program was developed to examine the response of flanged C-shaped walls with respect of load history and a computational parametric study was conducted to focus more specifically on the impact of web reinforcement for walls subject to a range of shear stress demands.

The …

Research And Study Of Fashion And Costume History Spanning From Ancient Egypt To Modern Day, Kaitlyn E. Dennis Miss

Posters-at-the-Capitol

Through a generous donation to Morehead State University, research has been conducted on thousands of slides containing images of artwork and artifacts of historical significance. These images span from Egyptian hieroglyphs to the inaugural dress of every first lady of the United States. The slides are in the process of being recorded and catalogued for future use by students in hopes of furthering academic comprehension and awareness of the influence of fashion and costume history through the ages. Special thanks to the family of Gretel Geist Rutledge, faculty mentor Denise Watkins, as well as the Department of Music, Theatre, and …

How Acoustics In California High Performance Schools Relate To Student Achievement, Devin K. Wong

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

This research project seeks to determine if students attending K–12 schools meeting a minimum standard of high performance classroom conditions in the state of California do evidence higher scholastic achievement, based on publically available results on state-wide standardized tests. In three phases, a subset of 200+ schools applying for grants dedicated to building high performance schools over the past decade was correlated with an existing database of achievement scores for all public schools in California. The criteria utilized to specify high performance classrooms was provided by the California High Performance Initiative (HPI) Grant program. Academic achievement was evaluated on a …

Touch Of Nature - Design Build, Katlyn Montague

ASA Multidisciplinary Research Symposium

Touch of Nature, an educational facility that’s goal is to enhance learning of the natural environment, hired our Architecture Building Technology class to design and build several educational kiosks located along the Rocky Ledges Trail. These kiosks included signage that will educate hikers on the environment around them.

Buildings As An Assembly Of 3d Printed Components, Stephen S. Lauer

ASA Multidisciplinary Research Symposium

This project aimed to design a series of components that would be assembled to become a house. The design is a house that is printed in a series of modules and assembled using a series of printed connectors for not only attaching the modules but also used in other various details.

The Making Of A Rain-Induced Roof Collapse And The Lessons Learned For Our Profession, M. E. Parolini, John Lawson

Architectural Engineering

Using a recent rain-induced roof collapse as a forensic case study, the authors will demonstrate a number of vital points of interest in the collaboration between structural engineers and other design disciplines. Citing a number of problems with the building’s design and the current code standards, this paper will investigate the avoidable events that led to a costly failure of the roof structure presented. As the practice of each construction design profession has become more specialized, communication among those professions on many overlapping design choices has eroded from common practice. This is true for one such area where multiple disciplines …

Elastic Field And Frequency Variation In Extendable Wind Turbine Blades, Jeswin John, Donald W. Radford, Subhas Karan Venayagamoorthy, Paul R. Heyliger

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

The behaviors of tip displacement, maximum stress, and natural frequency of vibration as a function of blade length are investigated for extendable wind turbine blades. A three-dimensional linear elasticity finite-element model of the blade is used along with a typical profile and representative material properties. The quasi-linear response and free vibration behavior are investigated for a sequence of blade geometries. These estimates are intended to give approximate measures of expected changes in the elastic and dynamic field as the operating length changes and provide preliminary guidelines for this novel class of structure.

Plastic Fantastic: The Fiberglass Boatbuilding Industry In Holland, Michigan, Geoffrey D. Reynolds

Faculty Publications

Plastic Fantastic: The Fiberglass Boatbuilding Industry in Holland, Michigan is a chapter concerning the use of fiberglass reinforced plastic (FRP) to build boats starting in the 1940s. In the 1950s boat builders discovered that fiberglass would allow them to design boats that would lead to new boat sales and increased profit margins for years to come. This technology steadily spread throughout American boat manufacturing plants, including Holland, Michigan, placing the town among the leaders in the industry.

The Bridge Newsletter Winter 2016, Missouri University Of Science And Technology

The Bridge Newsletter

-World's only cold-formed steel conference
-2016 Alumni of Influence
-National intelligence leader speaks
-Senne Memoria

Case Study Of Quantifying Energy Loss Through Ceiling-Attic Recessed Lighting Fixtures Through 3d Numerical Simulation, Ri Na, Shengmao Lin, Zhigang Shen, Linxia Gu

Department of Mechanical and Materials Engineering: Faculty Publications

Abstract Air leakage through recessed lighting fixtures has been identified as a common issue that causes extra energy consumption in residential buildings. However, few quantitative studies in this area were found. As such, a preliminary assessment of the magnitude of this type of energy loss was conducted by using three-dimensional (3D) transient computational fluid dynamics (CFD) models. A hypothetical layout of recessed lighting fixtures was designed with boundary conditions of four different seasons, which were obtained from recorded roof/attic temperature data sets. The results of the study indicate that leakage of recessed lighting fixtures could be a significant channel of …

Appendix To The Minutes Of Evidence: Taken Before The Lords Committees To Whom The Bill Intituled "An Act For Improving The Approaches To London Bridge," Was Committed, City Liberal Club

The Wilbur & Sara Ruth Watson Bridge Book Collection

In 1829 legislation was submitted to the British Parliament, regarding improvements to the approaches to London Bridge. Referred to a Lord’s Committee, a report was issued, this being the appendix of exhibits offered in support. Note especially the maps at the end of the report. The original book, offered as an e-book here, is housed in the Wilbur J. & Sara Ruth Watson Bridge Book Collection, in Special Collections of the Michael Schwartz Library of Cleveland State University.

Acoustic Management Of Library Fishbowls, Zachary J. Lilley

Materials Engineering

The purpose of this project is to aid the Cal Poly Robert E. Kennedy library in modifying the “fishbowl” study spaces to more effectively maintain the desirable sound that is generated within the fishbowls while avoiding the entrance and exit of excess noise to and from the fishbowls. A collaboration between the Materials Engineering Department and the Architecture Department provided the combined expertise needed to design, test, and install a prototype acoustic treatment in fishbowl 216-R in consultation with the Cal Poly Library as the voice of the customer. The fishbowl’s undesirable acoustic properties can be attributed to the hard …

Measuring Building Substructures: Solutions To ‘First Year’ Introductory Level Examination Questions, Tony Cunningham

Other Resources

The measurement of substructure works to simple domestic type buildings is a logical starting point for students to commence the process of taking-off building quantities. Substructure work is typically the first class of work to be explained in textbooks dealing with both construction technology and building measurement. However, substructure work is often one of the most challenging elements to measure. In this paper, the author demonstrates the process of measuring basic substructure designs. The approach involves providing solutions to a sample of four Irish Department of Education Technological Certificate: Builders’ Quantities Intermediate Stage examinations. The intention is to demonstrate how …

Theoretical Study Of Two States Reactivity Of No Activation On Iron Atom, Xiaoman Wang, Yaxin Su, Wenyu Liao, Wenyi Deng

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

The mechanism of Fe+NO was calculated by the Density Functional Theory (DFT) with the B3LYP methods combined with the 6-311+G (d, p) basis set. The geometry of reactants, transition states, intermediates and products of two reaction systems were completely optimized, and all the transition states were verified by the vibration analysis and intrinsic reaction coordinate (IRC) calculations. The "Two State Reactivity (TSR)" was used to analyze the reaction mechanisms; Results showed that the reaction system preferentially involves low-spin state entrance channel and the high-spin state exit channel. In the reaction channel, the crossing point appears, which would effectively reduce the …

Methamphetamine Absorption By Skin Lipids: Accumulated Mass, Partition Coefficients, And The Influence Of Fatty Acids, K. Parker, G. Morrison

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

Occupants of former methamphetamine laboratories, often residences, may experience increased exposure through the accumulation of the methamphetamine in the organic films that coat skin and indoor surfaces. The objectives of this study were to determine equilibrium partition coefficients of vapor-phase methamphetamine with artificial sebum (AS-1), artificial sebum without fatty acids (AS-2), and real skin surface films, herein called skin oils. Sebum and skin oil-coated filters were exposed to vapor-phase methamphetamine at concentrations ranging from 8 to 159 ppb, and samples were analyzed for exposure time periods from 2 h to 60 days. For a low vapor-phase methamphetamine concentration range of …

Mechanical And Thermal Evaluation Of Different Types Of Pcm-Concrete Composite Panels, Dervilla Niall, Oliver Kinnane, Roger West, Sarah Mccormack

Conference papers

ABSTRACT: Thermal mass indicates the ability of a material to store and release heat and is a function of the heat storage capacity of a material. The thermal mass of construction materials can be used to reduce the energy required for heating and cooling buildings. The heat storage capacity of concrete can be increased by incorporating phase change materials (PCMs) into the concrete and hence providing additional latent heat storage capacity. Research was carried out to compare the thermal behaviour of two different types of PCM/concrete composite panels. The first type of panel was formed by adding microencapsulated paraffin to …

Lifelong Housing Design: User Feedback Evaluation Of Smart Objects And Accessible Houses For Healthy Ageing, Matteo Zallio, Niccolò Casiddu

Conference Papers

According to the latest research by the European Community and ISTAT (Italian National Institute of Statistics) surveys, Europe has the highest average age for its population. According to those data, in the near future, it could be necessary to move from a welfare model based on the centralization of care systems, to a system based on the distribution of certain healthcare facilities [1]. This means that the ageing population is ever increasing, thanks to better lifestyles, innovative medical care and wider access to different services. This work seeks to observe and analyse key implications of architectural and interior design features …

Ua66 Ogden College Of Science & Engineering Newsletter, Cheryl Stevens, Dean

Ogden College of Science & Engineering Publications

No abstract provided.

The Experiment And Analysis Of Active Mechanisms For Enhancing Heat And Mass Transfer In Sorption Fluids, Ziqi Shen

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

This project was funded by American Society of Heating, Refrigerating, and Air-Conditioning Engineers (ASHRAE RP-1462). It is a three years’ research, including the literature review, labs construction, experiments and data analysis.

In this thesis, first of all, we conducted literature review of mechanism motion influence on heat and mass transfer and additive effect in absorption chiller. This part helps us understand the basic idea of how mechanism motion affects the heat and mass transfer of sorption fluids and gives us reference on how to select the experiment instrument and the experiment operation range.

In the second part, the instrument selection …

3 E’S Enterprise Architecture Framework (That Encompasses Business Process, Information Systems, And Information Technology), Nicholas C. Bucciarelli Mr.

Articles

No abstract provided.

Accreditation Insights And The Next Body Of Knowledge, Allen Estes, Thomas A. Lenox, Kenneth J. Fridley, Richard O. Anderson P.E.

Architectural Engineering

The American Society of Civil Engineers (ASCE) published the second edition of the Civil Engineering Body of Knowledge (BOK2) in 2008 expanding the knowledge, skills and attitudes required of future civil engineers. There were major changes to the BOK2 as the number of expected outcomes increased from 15 to 24 and the cognitive level of attainment was more precisely defined. A major implementation and enforcement mechanism for the BOK is the ABET accreditation criteria which includes both general criteria 3 and 5 and the discipline-specific program criteria. Of those, the program criteria are the easiest to change.

In 2013, ASCE …

Inquiry-Based Learning To Explore The Design Of The Built Environment, Anahid A. Behrouzi, Daniel Kuchma

Architectural Engineering

Typically in introductory structural engineering courses with a lab component, the instructional approach is to present the underlying theory via pre-lab lecture/reading and subsequently have students conduct guided experiments that affirm that theory. The new Fall 2015 course offering described in this paper takes the reverse approach where students’ hands-on exploration of a concept occurs prior to formal instruction. As such, the course is based upon Da Vinci’s perspective that: “[i]n the examination of physical problems I begin by making a few experiments,…we must commence with experience, and strive by means of it to discover truth.”

In the course, student …

Enhancing An Upper Division Structural Dynamics Course Using K'Nex Toys, Allen Estes, Cole C. Mcdaniel, Alec Roberto Zavala

Architectural Engineering

K’nex toys consist of various plastic rods and connectors cleverly-sized to allow the creation of a variety of structures. While the K’nex Corporation focuses on the K-12 market, there are a myriad of engineering applications that have been demonstrated at the university level. Many of these occur at the lower division level in freshman experience courses or introductory statics courses. Other applications have included constructing structural models for structural design and capstone courses. This paper takes this use of classroom technology even further by demonstrating how K’nex pieces can be used effectively in an upper-division, highly technical structural dynamics / …

Physical Artifacts In Introductory-Level Reinforced Concrete Design Instruction, Anahid A. Behrouzi

Architectural Engineering

Incorporating physical models and demonstrations in the introductory-level reinforced concrete design course has shown to be beneficial for students in clarifying and engraining fundamental concepts. The research study conducted at the author’s university during Spring 2015 involved the design, fabrication, and implementation of models to supplement traditional lectures on topics that students have found challenging in prior offerings of the course. Specifically, these demonstration tools illustrate:

• Three-dimensional stress blocks for rectangular/flanged beams subjected to varying levels of flexural demand • Distinctions between the flexural behavior of one and two-way slabs • Placement of steel reinforcement for singly/doubly reinforced beams …

Significance Of Parameters Affecting The Performance Of A Passive Down-Draft Evaporative Cooling (Pdec) Tower With A Spray System, Daeho Kang, Richard K. Strand

Publications and Research

PDEC towers with spray systems are known to achieve substantial energy savings. Various parameters such as the wet-bulb depression, the tower height, and the wind speed have been known to be key factors affecting the performance of the system. To date, the significance of these parameters and other important factors have not been adequately treated in the literature. There also has been a lack of models that can successfully investigate potential benefits of the system under various conditions where this particular system could be applicable. To address these critical issues, this study performed a parametric analysis by using a FLUENT …

On The Flux Richardson Number In Stably Stratified Turbulence, Subhas K. Venayagamoorthy, Jeffrey R. Koseff

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

The flux Richardson number Rf (often referred to as the mixing efficiency) is a widely used parameter in stably stratified turbulence which is intended to provide a measure of the amount of turbulent kinetic energy k that is irreversibly converted to background potential energy (which is by definition the minimum potential energy that a stratified fluid can attain that is not available for conversion back to kinetic energy) due to turbulent mixing. The flux Richardson number is traditionally defined as the ratio of the buoyancy flux B to the production rate of turbulent kinetic energy P. An alternative generalized definition …

Benefit-Cost Analysis Of Commercially Available Activated Carbon Filters For Indoor Ozone Removal In Single-Family Homes, J. R. Aldred, E. Darling, G. Morrison, J. Siegel, R. L. Corsi

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

This study involved the development of a model for evaluating the potential costs and benefits of ozone control by activated carbon filtration in single-family homes. The modeling effort included the prediction of indoor ozone with and without activated carbon filtration in the HVAC system. As one application, the model was used to predict benefit-to-cost ratios for single-family homes in 12 American cities in five different climate zones. Health benefits were evaluated using disability-adjusted life-years and included city-specific age demographics for each simulation. Costs of commercially available activated carbon filters included capital cost differences when compared to conventional HVAC filters of …

Cement Hydration-Based Micromechanics Modeling Of The Time-Dependent Small-Strain Stiffness Of Fly Ash-Stabilized Soils, Xin Kang, Louis Ge, Wen Cheng Liao

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

A contact mechanics model, based on the Hertzian elastic contact theory and cementation coating development at particulate scale, was established to predict the time-dependent small-strain stiffness of Class C fly ash-stabilized soils during curing. The cementation coating development model was developed at particulate level based on the Arrhenius law to predict the contact radius growth. A hyperbolic time-temperature relationship was proposed to capture the temperature change of fly ash-stabilized soils and links the pozzolanic reaction rate with curing time. Model-predicted small-strain stiffness was evaluated through both published and experimental test results with good success. The micromechanics modeling indicated that the …