Architectural Engineering Commons^™

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

Ogden College of Science & Engineering Publications

No abstract provided.

Enhanced Series-Parallel Model For Estimating The Time-Dependent Thermal Conductivity Of Fly Ash Soil Mixtures, Xin Kang, Louis Ge

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

An enhanced series-parallel (S-II) model of one-dimensional conductive heat flow through a unit cell was developed to estimate the time-dependent thermal conductivity of Class C fly ash stabilized soils. The unit cell is composed of three separate heat flow paths: a continuous path through solid contacts (soil contacts, fly ash contacts, and soil fly ash contacts) in parallel arrangement, a series-parallel path of solids in a series arrangement with a parallel arranged path of solid-miniscule pores (miniscule portion of solid water and miniscule portion of solid air), and a continuous path through water and air in parallel arrangement. The solid-miniscule …

The Bridge Newsletter Winter 2015, Missouri University Of Science And Technology

The Bridge Newsletter

-S&T’s Solar House Design Team sets out to redefine the American housing market
-A monumental anniversary
-Academy awards Sneed
-ASCE honors Holmes

Distributed Yielding Concept For Improved Seismic Collapse Performance Of Rigid Wall-Flexible Diaphragm Buildings, Maria Koliou, Andre Filiatrault, Dominic J. Kelly, John W. Lawson

Architectural Engineering

Rigid wall-flexible diaphragm (RWFD) buildings are a common type of single-story construction in North America, Europe, and New Zealand that incorporate rigid in-plane concrete or masonry walls and flexible in-plane wood, steel, or hybrid roof diaphragms. RWFD buildings have shown poor seismic performance during past earthquake events. In particular, it has been observed that the global seismic response is dominated by the response of the diaphragm, which is mainly attributed to large in-plane diaphragm displacements that significantly exceed the displacements of in-plane walls. In this study, the concept of distributed yielding in the flexible diaphragm by weakening certain intermediate diaphragm …

Bim; Postgraduate Multidisciplinary Collaborative Education, Malachy Mathews

Conference papers

BIM Technologies and Process are steadily increasing in the design and construction industry. The amount of undergraduate courses delivering BIM based applied and theory courses is also on the rise. These students will be entering a job market where their skillsets in digital modelling and collaborative practice will be in demand. However, existing AEC (architectural, engineering, construction) professionals are recognising the changes happening in the industry. Each domain is influenced and challenged by BIM. The traditional process and workflows will change as BIM adoption grows. Tobin [1] states the long-term impact of any innovation is often not understood when it …

Pigs Feet, Jesse W. Standlea

The Transdisciplinary STEAM+ Journal

My sculpture “Pigs Feet” has literal foundations upon casts of live pig’s feet. I locally sourced the pig’s feet before casting them. My sculpture makes use of a once cutting edge casting technology, alginate. Alginate molds were once the standard in dentistry. Alginate is an appealing casting material as it is refined from brown seaweeds, is both food and skin safe, it is suitable for educators, for artists and engineers alike.

Physical Models In The Reinforced Concrete Design Classroom, Anahid A. Behrouzi

Architectural Engineering

An overview is presented of various physical demonstration tools intended to supplement lectures in topic areas that students consistently identify as being troublesome. The article describes the design, fabrication, and implementation of classroom models to help explain flexural behavior and detailing of beams, slabs, and frame systems.

Assessment Of Empirical Equations For The Compression Index Of Fine-Grained Soils In Missouri, Site Onyejekwe, Xin Kang, Louis Ge

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

The use of correlations and empirical relationships in geotechnical engineering provides a fast, cost-effective means of predicting the value of a parameter based on the values of certain other, possibly more easily determined, parameters. The correlation between two or more soil properties has been found to be dependent in varying degrees on soil type, the testing method used to obtain the numerical value of the parameter itself and the homogeneity of the soil. Many empirical correlations among soil properties have been published. These correlations, based on widely sourced data, may not be appropriate for local situations. Hence, there is a …

The Effect Of Classical Order On The Seismic Behavior Of Ancient Masonry Columns, Cody M. Buckley

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

The design and erection of columns in classical Greece and Rome was a deceptively complicated task. Ancient engineers were not guided by a set of building codes, resulting in several regional design variations. The writer Vitruvius condensed these variations into three archetypes or “orders” defined by proportions based on an arbitrary “module.”

The goal of this thesis is to better understand the effect of these proportions on the seismic response of ancient columns through the use of Equivalent Lateral Force Procedure and finite element analysis software. To this end, a parametric study of linearly elastic, free-standing columns with homogeneous material …

Design Guideline To Select Systems And Strategies To Achieve Adequate Indoor Air Quality In The Mojave Desert Climate Region, Nicholas Robert Williams Inouye

UNLV Theses, Dissertations, Professional Papers, and Capstones

The awareness of climate change has led to many energy-related changes in

building behavior and space conditioning systems. Unfortunately, these changes often

led to the degradation of indoor air quality (IAQ) in residential construction. In an effort

to improve IAQ, a design guideline was developed for homeowners in the Mojave

Desert. A case study designed for the U.S. Department of Energy, Race to Zero

Student Design Competition was used to develop the design guideline. The design

guideline and compilation of codes and standards that affect both IAQ and space

conditioning shall be used in tandem by Mojave Desert homeowners to …

Accumulation Of Gas-Phase Methamphetamine On Clothing, Toy Fabrics, And Skin Oil, G. Morrison, N. V. Shakila, K. Parker

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

To better understand methamphetamine exposure and risk for occupants of former residential clandestine methamphetamine laboratories, we measured the dynamic accumulation of methamphetamine in skin oil, cotton and polyester (PE) clothing, upholstery, and toy fabric (substrates) exposed to 15-30 ppb (91-183 μg/m3) neutral methamphetamine in air for up to 60 days. The average equilibrium partition coefficients at 30% RH, in units of μg of methamphetamine per gram of substrate per ppb, are 3.0 ± 0.2 for a PE baby blanket, 5.6 ± 3.5 for a PE fabric toy, 3.7 ± 0.2 for a PE shirt, 18.3 ± 8.0 for a PE/cotton …

Thermal Energy Storage In Building Integrated Thermal Systems: A Review. Part 2. Integration As Passive System, Dervilla Niall, Sarah Mccormack, Philip Griffiths, Luisa Cabeza, Lidia Navarro, Albert Castell, Alvaro De Grazia, Maria Brown

Articles

Energy consumption trends in residential and commercial buildings show a significant increase in recent decades. One of the key points for reducing energy consumption in buildings is to decrease the energy demand. Buildings envelopes are not just a structure they also provide protection from outdoor weather conditions always taking into account the local climate. Thermal energy storage has been used and applied to the building structure by taking advantage of sensible heat storage of materials with high thermal mass. But in recent years, researchers have focused their studies on the implementation of latent heat storage materials that if well incorporated …

Quantification And Subjective Perception Of Varying Reflection Densities In Measured Room Impulsed Responses, Hyun Hong, Lily M. Wang

Durham School of Architectural Engineering and Construction: Faculty Publications

This project focuses on quantifying and testing the subjective perception of reflection densities, or the number of reflections per second, from different room impulse responses. The widely used room acoustic metric, reverberation time, is linked to the perceived reverberation in a room. Two different rooms having the same reverberation time, though, can have different reflection densities in their room impulse responses, and this difference in reflection density may affect how listeners perceive spatial impression in rooms. To investigate how sensitive humans are to a change of reflection density, this paper first reviews assorted parameters for quantifying reflection density from measured …

Room Acoustic Effects On Speech Comprehension Of English-As-Second-Language Talkers And Listeners Versus Native-English-Speaking Talkers And Listeners, Lily M. Wang

Durham School of Architectural Engineering and Construction: Faculty Publications

Approximately 21% of the children in the United States school system speak a language other than English at home, but are being taught in English at school. English is additionally being used more and more often as a common language in international settings, even though participants at these international events again are not native English speakers. How do adverse room acoustic environments, including higher background noise levels and longer reverberation times, impact English-as-a-Second-Language (ESL) talkers and listeners versus native English-speaking talkers and listeners? This presentation focuses on two recent studies at the University of Nebraska that investigate how assorted room …

Chemically Stabilized Soft Clays For Road-Base Construction, Xin Kang, Gi Chun Kang, Kuang Tsung Chang, Louis Ge

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

Soft clays are widely distributed in Missouri, United States. Due to their relatively low strength and high compressibility, subgrade construction in soft clays has encountered many difficulties. In recent practice, the use of fly ash (FA) along with lime to tackle soft subgrade problems has shown promising results. The effectiveness of Class C FA and lime kiln dust (LKD) in clay subgrade stabilization is examined in this research. Scanning electron microscopic (SEM) analysis, proctor compaction tests, unconfined compression tests, and resilient modulus tests were carried out on the FA and LKD modified soil mixtures. Test specimens were prepared at optimum …

New Civil Engineering Program Criteria: The Rest Of The Story, Allen Estes, Thomas A. Lenox, Richard O. Anderson P.E.

Architectural Engineering

The American Society of Civil Engineers (ASCE) organized the Civil Engineering Program Criteria Task Committee in October 2012 whose charge is to determine if the current ABET Civil Engineering Program Criteria (CEPC) should be changed to reflect one or more of the 24 outcomes of the second edition of the Civil Engineering Body of Knowledge published in 2008. After two years of work, a proposed CEPC has been approved by the relevant ASCE committees and forwarded to ABET for approval and incorporation into accreditation criteria. A paper chronicling the committee’s efforts through a review of the literature, the committee’s methodology …

Team Solar Sip, Patrick Fillingham, Wesley Goodson, Kenneth Li

Mechanical Engineering

No abstract provided.

After The Solar Decathlon: Creating A New Design-Build Program, Eric Weber

Architecture Faculty Presentations

The School of Architecture’s intent was to use the Solar Decathlon as a catalyst for creating a new Design Build program. The project allowed the School to leverage support into acquiring tools & equipment essential to creating the house, and for upgrading the school’s shop facilities. The projects completed immediately following the Solar Decathlon utilized both digital fabrication and prefabrication. This is significant because the School intends to leverage both of these competencies, developed during the Solar Decathlon, in order to further the School’s craft-based pedagogy. Due to the Design-Build Studio’s development of the Solar Decathlon house, there has been …

After The Solar Decathlon: Creating A New Design-Build Program, Eric Weber

Architecture Faculty Research

In Fall 2011, the University of Nevada-Las Vegas School of Architecture’s David G. Howryla Design Build Studio began development of UNLV’s entry into the U.S. Department of Energy Solar Decathlon 2013, an international, university-based competition to design and build solar-powered housing prototypes. As a competition that requires collaboration between engineering, architecture, interior design, marketing, and communications, the Solar Decathlon is an effective tool for simulating teamwork on real projects. The School of Architecture’s intent was to use the Solar Decathlon as a catalyst for creating UNLV’s Design Build program. The project allowed the School to use support for the project …

The Design Build Experience In The Context Of A Self-Consolidating Grout Research Project, Tanner Blumenfeld, Jordan Delfino, Deryk Izuo, Matthew Josten

Architectural Engineering

The purpose of this project was to experience the design-build project delivery method in the context of a research-fueled, procedural testing investigation. Thus, this project consisted of 3 main components each of which will be addressed in this report.

The first aspect to be addressed is the research aspect. The goal of our research was to establish a chemical understanding of how replacement of cement with pozzolans in a grout mixture affects chemical processes and resulting structural characteristics within and of the grout. This research was then applied to formulation of potentially self-consolidating mix designs to be tested in the …