Architectural Engineering Commons^™

Modular House Revival, Kevin Chiang, Spencer Dilley, Sarah Dowthwaite, Trevor Houghton, Ryan Lefebvre, Michele Leung, Cameron Lober, Chris Martinez, Katie Mayer

Architectural Engineering

The Modular House, located in Poly Canyon, has seen extensive damage since the last caretaker left nearly ten years ago. To prevent further damage and improve the safety and appeal of the structure, we are proposing a renovation of the existing building that removes the existing cladding and partitions. By the end of Spring Quarter 2017, the Modular House will have a guardrail system replacing the wood paneling on the walls and a new steel composite deck to replace the current flooring system. The structural steel framing system will remain as is.

Improving The Estidama Rating For New Adec Prototype Schools By Renewable Energy Integration Joud Abdalla Al Jumaa Al Dakheel, Joud Abdalla Al Jumaa Al Dakheel

Architectural Engineering Theses

The building sector in the United Arab Emirates (UAE) has experienced a tremendous expansion in the last forty years due to population growth and economic development. Presently, the UAE has one of the world’s largest energy consumption per capita, with the building sector accounting for 70% of the consumed energy. In the last decade, the government intensified its efforts to implement stringent environmental regulations and schemes by mandating environmental policies and regulations. It introduced “Estidama”; the local sustainability framework, and the Pearl Building Rating System (PBRS) to promote the development of sustainable buildings. All governmental buildings must achieve …

The Atascadero Printery, Kaylee Efstathiu, Jami Hahn, Tyler Pizarro, Elizabeth Townsend, Mark Luzi

Architectural Engineering

No abstract provided.

Design And Simulation A Novel Three-Phase, Five-Level Inverter Topology, Fares Al Juheshi

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

There is a high integration of renewable energy sources in modern building electrical systems. The main components of these new systems are power electronics switches that inherit their foundations from signal amplifier technologies and then developed to drive high powers. Nowadays, the static converter can connect systems with different electrical characteristics. For instance, choppers connect two DC systems with different voltage levels, whereas inverters transform power from DC to AC with variable amplitude and frequency. Since multilevel inverters offer a better quality of the output waveforms than standard inverters, a novel three-phase, five-level inverter topology is proposed. The goal of …

Exploring The Correlation Between Occupied And Unoccupied Noise Levels In K–12 Classrooms, Laura Caroline Brill

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

Students learn in occupied spaces, yet acoustical standards specify recommendations for unoccupied levels. While some studies have quantified the relationship between occupied and background noise levels in classrooms, their definitions of background noise level were often inconsistent with those recommended by the standards. The research presented in this thesis examines the relationship between occupied and unoccupied levels in 110 classrooms in two Midwestern school districts. Acoustic levels were logged for a total of six days in each classroom. Occupied and unoccupied levels were parsed from the logged data using k-means clustering, an unsupervised statistical learning technique. The results from this …

Uncovering The Mystery Of Machu Picchu, Barbara Cardona

Butler Journal of Undergraduate Research

If mysteries were ranked, Machu Picchu would be on the top of the list. This Incan site, destination for millions of tourists, archaeologists and researchers each year, is one of the biggest enigmas of Incan culture. Its mesmerizing view has prompted hundreds of unanswered questions about this civilization. Incan culture revolved around cities, built without reference to the world beyond. Although the Incas were incredible architects and inventors, they lack written records, shrouding their culture in mystery for many years. While research has illuminated some facets of Incan culture, a significant question still remains: what purpose did Machu Picchu play …

Experimental And Numerical Investigation Of Flexural Concrete Wall Design Details, Anahid A. Behrouzi, T. Welt, Dawn Lehman, Laura Lowes, J. Lafave, Daniel Kuchma

Architectural Engineering

Reinforced concrete structural walls are common in mid- to high-rise structures in high seismic regions, and are expected to have good strength and ductility characteristics if designed in accordance with ACI 318-14. However, experimental and analytical investigations of reinforced concrete structural walls and isolated boundary element prisms indicate that the existing design provisions may be insufficient to provide ductile, flexure-dominated response under cyclic loading. Walls designed with an ACI compliant boundary element length are susceptible to shear-compression failures below the maximum ACI allowable shear stress of 10Acv√fc’. Also of concern is the frequent use of thinner walls in modern design; …

Wall Panel Optimization For Refugee Shelters In Germany: An Ahp Study, Zhu Jiadong

Masters Theses & Specialist Projects

The German government is experiencing difficulties housing and assimilating Syrian refugees in its borders. Erecting temporary shelters on location is one way to deal with the current crises. This thesis attempts to use Analytic Hierarchy Process (AHP) to determine the optimum combination of materials and construction methods to be used in the shelter’s walls in order to improve the living conditions of the refugees and to ensure that the cost is acceptable to the German government. This thesis compares six existing wall panel products from China, which have the lowest cost on the worldwide market. The R-value, strength, price, weight, …

Numerical Simulations Of Intrusive Gravity Currents Interacting With A Bottom-Mounted Obstacle In A Continuously Stratified Ambient, Jian Zhou, Subhas K. Venayagamoorthy

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

In this study, the flow dynamics of intrusive gravity currents past a bottom-mounted obstacle were investigated using highly resolved numerical simulations. The propagation dynamics of a classic intrusive gravity current was first simulated in order to validate the numerical model with previous laboratory experiments. A bottom-mounted obstacle with a varying non-dimensional height of D~ = D/ H, where D is the obstacle height and H is the total flow depth, was then added to the problem in order to study the downstream flow pattern of the intrusive gravity current. For short obstacles, the intrusion re-established itself downstream without much distortion. …

How Tonality And Loudness Of Noise Relate To Annoyance And Task Performance” Noise Control Eng. J. 65(2), 71-82., Joonhee Lee, Jennifer M. Francis, Lily M. Wang

Durham School of Architectural Engineering and Construction: Faculty Publications

Audible tones in noise generated by building mechanical equipment can be a leading cause of complaints from occupants. A number of metrics have been developed to quantify prominence of a tone, but previous work has shown that the impact of a certain tonality appears to vary with the level of the broadband noise signal. More work on how tonal signals of varying tonality, tone frequency and broadband noise levels relate to annoyance and task performance is needed. This paper investigates such relationships between current noise metrics, annoyance and task performance under assorted tonal noise conditions through subjective testing. Participants rated …

Measurements Of Dermal Uptake Of Nicotine Directly From Air And Clothing, G. Bekö, Glenn Morrison, C. J. Weschler, H. M. Koch, C. Pälmke, T. Salthammer, T. Schripp, J. Toftum, G. Clausen

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

In this preliminary study, we have investigated whether dermal uptake of nicotine directly from air or indirectly from clothing can be a meaningful exposure pathway. Two participants wearing only shorts and a third participant wearing clean cotton clothes were exposed to environmental tobacco smoke (ETS), generated by mechanically "smoking" cigarettes, for three hours in a chamber while breathing clean air from head-enveloping hoods. The average nicotine concentration (420 μg/m3) was comparable to the highest levels reported for smoking sections of pubs. Urine samples were collected immediately before exposure and 60-hour post-exposure for bare-skinned participants. For the clothed participant, post-exposure urine …

Irish Bim Study 2017, Barry Mcauley, Alan Hore, Roger West

Articles

The Construction IT Alliance (CitA) recently published its Global BIM Study as part of its BIM Innovation Capability Programme (BICP). The study sought to identify how BIM was being currently addressed in 27 countries across the globe. The study sought to identify the presence of three key ingredients in these countries:

1. Regulatory requirement for BIM

2. Champions driving BIM

3. Noteworthy publications

The report identified a number of recurring themes that would help to shape Ireland’s BIM programme. The report concluded that Ireland should adopt a programme of partnership between industry and the Irish Government in order to affect …

Portfolio [Mother's Bridge], Sara Lack, Melvin Fuentes, Damon Williams, Emma Barraza

Architectural Engineering

No abstract provided.

Polaris, Dennise M. Manalo, Andy Do, Emilio Lozano, Mackenzie Stickney

Architectural Engineering

The project explores the relationship between the architecture and the engineering behind thin-shelled concrete structures. Initially, hanging chain models were used to observe pure compression; then, this model was improved upon using software like Rhinocerus, AutoCAD. From AutoCAD, the model was imported into SAP2000 for analysis.

Clothedral, Jacob T. Holmes, Andres Munoz, Sam Tenreiro Theis, Marta Blachowicz

Architectural Engineering

No abstract provided.

Lateral Strength And Ductile Behavior Of A Mortise-Tenon Connected Timber Frame, Alexandros Kouromenos

Master's Theses

The primary goals of this project were to examine the amount of lateral force resisted by a single-bay mortise-tenon connected timber moment frame, and to introduce ductile behavior into the mortise-tenon connections by adding a steel sleeve around a traditional wood peg. This research aimed to provide proof that traditional timber frames are capable of ductile racking while reliably complying with ASCE 7-10 building code drift speci! cations, implying an increase in the ASCE 7-10 ductility factor (R) for wood frames when used as lateral force resisting elements. A secondary goal was to promote traditional heavy timber framing as a …

Bicp Global Bim Study - Lessons For Ireland’S Bim Programme, Barry Mcauley, Alan Hore, Roger West

Reports

The Construction IT Alliance (CitA) has been promoting the benefits of digitisation in the construction and engineering industry in Ireland since its formation back in 2002. Whilst the Alliance has always strived to ensure that its members are exposed to a wide spectrum of contemporary digital tools and processes, the concept of Building Information Modelling (BIM) has dominated the focus of its activities over the past five years.

BIM can be described as a digital tool that facilitates everybody to better understand a building or structure through the use of a digital model which draws on a range of data …

Bau, January 17-21, Munich, Jim Roche

Other resources

This bi-annual five-day event is one of the

leading and biggest trade fares of architecture,

materials, building systems and craft skills in

the world. Held in the huge Messe München

Trade Fair Center in eastern Munich and

stretching over 17 gigantic halls each the size

of a football pitch, it offers a truly rich display of

the latest innovations in building technology.

Biotransformation Of 2,4-Dinitroanisole By A Fungal Penicillium Sp, Hunter W. Schroer, Kathryn L. Langenfeld, Xueshu Li, Hans Joachim Lehmler, Craig L. Just

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

Insensitive munitions explosives are new formulations that are less prone to unintended detonation compared to traditional explosives. While these formulations have safety benefits, the individual constituents, such as 2,4-dinitroanisole (DNAN), have an unknown ecosystem fate with potentially toxic impacts to flora and fauna exposed to DNAN and/or its metabolites. Fungi may be useful in remediation and have been shown to degrade traditional nitroaromatic explosives, such as 2,4,6-trinitrotoluene and 2,4-dinitrotoluene, that are structurally similar to DNAN. In this study, a fungal Penicillium sp., isolated from willow trees and designated strain KH1, was shown to degrade DNAN in solution within 14 days. …

Evaluation Of Out-Of-Plane Wall Anchorage Force Provisions In Buildings With Rigid Walls And Flexible Roof Diaphragms, Maria Koliou, John W. Lawson, Andre Filiatrault, Dominic J. Kelly

Architectural Engineering

Heavy concrete and masonry walled buildings with lightweight steel or wood flexible roof diaphragms are a common type of construction in North America. Failures of the out-of-plane wall anchorage to these roof systems and the resulting partial roof collapses during past earthquakes have led to repeated revisions to the seismic design provisions in the U.S. model building codes. However, the force levels considered in the current design provisions have remained largely unchanged since their introduction in the 1997 Uniform Building Code, and these provisions have not been fully tested by strong ground motions in the field. Using a two dimensional …

The Bridge Newsletter Spring 2017, Missouri University Of Science And Technology

The Bridge Newsletter

-Bayless retires
-Lifesaving flood relief
-Asphalt expert joins S&T
-First Prakash Lecture

Roof Diaphragm Distributed Yielding Concept For Improved Seismic Collapse Performance Of Buildings With Rigid Walls/Flexible Roof Diaphragms, Maria Koliou, Andre Filiatrault, D.J. Kelly, John W. Lawson

Architectural Engineering

Buildings with rigid walls and flexible roof diaphragms (RWFD) 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 or steel 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 roof diaphragm, which is mainly attributed to large in-plane roof displacements that significantly exceed the displacements of in-plane walls. The present study explores the concept of distributed yielding in the flexible roof …

An Alternative Procedure For The Seismic Design Of Buildings With Rigid Walls / Flexible Diaphragms: Fema P-1026, John W. Lawson, Dominic J. Kelly, Maria Koliou, Andre Filiatrault

Architectural Engineering

Evidence indicates that the dynamic behavior of Rigid Wall - Flexible Diaphragm (RWFD) buildings is dominated by the flexible roof diaphragm’s response instead of the walls’ response, and this is a significant departure from the underlying assumptions of the widely used equivalent lateral static force methods in current building codes. RWFD buildings are common in the Americas and other parts of the world, and incorporate rigid in-plane concrete or masonry walls and flexible in-plane wood or steel roof diaphragms. In an effort to improve the seismic performance of this common building type, the National Institute of Building Sciences (NIBS) directed …

A Review Of Approaches To Solving The Problem Of Bim Search: Towards Intelligence-Assisted Design, Hamed Khademi, Avril Behan

Conference papers

Due to the growing adoption of BIM and the rising popularity of cloud computing, BIM models are increasingly stored in central cloud repositories or Common Data Environments. Effective management and exploitation of these models creates the requirement for BIM retrieval systems. Thus far, the BIM industry has utilized general-purpose, text-based search techniques that operate on BIM metadata. This paper highlights the need for a domain-specific BIM search engine and reviews various approaches to address the problem of BIM search. Three main approaches were identified as context-, geometry-, and content-based BIM retrieval. For a comprehensive BIM retrieval system, all three approaches …

Development Of Vegetation-Pervious Concrete In Grid Beam System For Soil Slope Protection, Xiaohua Bao, Wenyu Liao, Zhijun Dong, Shanyong Wang, Waiching Tang

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

One of the most efficient and environmentally friendly methods for preventing a landslide on a slope is to vegetate it. Vegetation-pervious concretes have a promising potential for soil protection. In this study, the vegetation-pervious concrete with low alkalinity was developed and studied. Combined with a grid beam structure system, the stability and strength between the vegetation-pervious concrete and base soil are believed to be enhanced effectively. For improving plant adaptability, the alkalinity of concrete can be decreased innovatively by adding a self-designed admixture into the cement paste. The effects of the admixture content on alkalinity and compressive strength of the …

Development Of Structural-Functional Integrated Energy Storage Concrete With Innovative Macro-Encapsulated Pcm By Hollow Steel Ball, Hongzhi Cui, Waiching Tang, Qinghua Qin, Feng Xing, Wenyu Liao, Haibo Wen

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

Phase change materials (PCMs) have great potential for applications in energy efficient buildings. In this study, an innovative method of macro-encapsulation of PCM using hollow steel balls (HSB) was developed and the thermal and mechanical performance of PCM-HSB concrete was examined. The macro-encapsulation system (PCM-HSB) was attached with a metal clamp (c) for better mechanical interlocking with the mortar matrix. The latent heat of PCM-HSB-c that can be acquired is approximately 153.1 J/g, which can be considered to rank highly among PCM composites. According to the self-designed thermal performance evaluation, the PCM–HSB-c concrete panel is capable of reducing and deferring …

The Freeman Performing Arts Center, Community Design Center

Community Design Center Project Reports

The Freeman Performing Arts Center marks the threshold between prairie and civic life. This small agricultural community of 1,300 has an outsized Anabaptist music tradition recognized nationally. The 37,000 sf hall-type building unifies a miscellaneous collection of public buildings and landscapes at the southwest corner of the town’s one-mile grid. The center’s massing projects an ascending system of familiar gable roofs, which absorb the fly tower into a composition reflective of pragmatic building forms. The principal face of the building is a translucent curtain wall that illuminates interior massing—a beacon on the prairie. A thru-Porch celebrates transitions between the prairie’s …

Research On Control Methods Of Roof Radiant Cooling System, Yongbin Li, Zhaoyi Zhuang, Qiqi Zhu, Jian Song, Haipeng An

Durham School of Architectural Engineering and Construction: Faculty Publications

Taking the capillary ceiling radiation air conditioning system in radiation cooling Laboratory of comprehensive experimental building in Shandong Jianzhu University as an example, research the two different control methods which are room temperature control and water temperature control. The roof cooling model was established by using TRNSYS simulation software, two typical summer days were selected to explore the stability of the room temperature and the supply and return water temperature, research the comfort of human body and system energy consumption under two control methods. The results show that the indoor temperature of the two control methods can be stable at …

2017 Scholarly Productivity Report, Missouri University Of Science And Technology

Civil, Architectural and Environmental Engineering Scholarly Productivity Reports

No abstract provided.

Implementing Sensory And Emotional Intelligence Into Architectural Design Education In Ireland., Aoife Hayes

Theses

The 21^st century, as a whole, has seen massive developments in smart technologies, environmental strategies and architectural form. The 3D built environment is advancing on a daily basis, but has become a very two dimensional experience, frontloaded with screened imagery and visual stimuli, which has encouraged a trend of ocular-centric dominance. Unfortunately, as a result of this, the human experience is often lost. The prioritisation of the multi-sensorial human experience is not only at threat from this visual predominance, but also environmental concerns and economy seem to hold a greater place on the hierarchy. Research carried out by the …