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Full-Text Articles in Architectural Engineering

Piles Redesigned: A Comparison Of Concrete And Timber, Riley N. Mullen Dec 2021

Piles Redesigned: A Comparison Of Concrete And Timber, Riley N. Mullen

Architectural Engineering

This project redesigned a foundation with timber piles and assesses the environmental impacts.

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Parametric Study Of New Diaphragm Design Methods, Emily Rose Taylor Dec 2021

Parametric Study Of New Diaphragm Design Methods, Emily Rose Taylor

Architectural Engineering

Large retail buildings and warehouses are typically a one-story concrete or masonry walled structure with a panelized wood roof. These buildings fall under the category of “RWFD”, or “Rigid Wall Flexible Diaphragm”. There are two preexisting methods that can be utilized in designing flexible diaphragms, but there is a third being introduced in the new ASCE 7-22 code. Given this code is unreleased, there really is no guidance to the user as far as which method is the most time efficient or cost effective. The purpose of this project is to analyze the same building using each design method in …

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Makom Hillel: Slo Hillel Outdoor Event Space, Eli J. Greenberg Dec 2021

Makom Hillel: Slo Hillel Outdoor Event Space, Eli J. Greenberg

Architectural Engineering

This report details the design development for Makom Hillel, an outdoor event space dedicated to San Luis Obispo’s Hillel chapter. Hillel is an international organization working to connect Jewish students and community members with each other and their religion. The platform was designed as a service-learning senior project for the ARCE Department at Cal Poly SLO. The gravity and lateral systems were designed using the 2018 NDS, ASCE 7-16, and Simpson Strong Tie’s 2021 Wood Construction Connectors catalog. This project was conducted during Spring and Fall 2021 and supervised by Professor Brent Nuttall.

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Investigation Into Excessive Deflections In A Concrete Flat Slab, Matthew Frydman Dec 2021

Investigation Into Excessive Deflections In A Concrete Flat Slab, Matthew Frydman

Architectural Engineering

This senior project was inspired by a project experience during a summer internship in Denver, Colorado at Wiss, Janney, Elstner Associates, Inc. After a pipe froze and burst in the 13,000 sq. ft. basement of a two story building built in the 1990’s, an investigation was needed to determine the structural impacts of the event. A site visit was performed to collect data, and it quickly became clear that slab deflections and strength were top priorities. The slab was able to deflect in the basement due to a cardboard void form that was used to accommodate expansive soils. This project …

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Chinese Timber Woven Arch Bridges, Owen M. Anderson, Kaleigh G. Kant Dec 2021

Chinese Timber Woven Arch Bridges, Owen M. Anderson, Kaleigh G. Kant

Architectural Engineering

This is a report on the study and analysis conducted on Chinese timber woven bridges. It explores historical and cultural values behind them as well as their structural behavior. Finally, the bridge design is described in a series of equations that would make for simple design and construction.

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Growing Grounds Farm & Nursery - Serenity Shade Structure, Jack C. Radovan Dec 2021

Growing Grounds Farm & Nursery - Serenity Shade Structure, Jack C. Radovan

Architectural Engineering

This project includes the design and construction of a shade structure over the serenity seating area at Growing Grounds Farm & Nursery. Growing Grounds is a part of TransitionsMental Health Association. It is a nonprofit wholesale nursery that provides horticulture, socialization opportunities, paid employment and soft job skills training for adults with severe and persistent mental illness. The shade structure will serve as place where staff and volunteers can gather and sit.

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The Bridge Newsletter Winter 2021, Missouri University Of Science And Technology Dec 2021

The Bridge Newsletter Winter 2021, Missouri University Of Science And Technology

The Bridge Newsletter

-S&T contributes to infrastructure through national center
-Brinkmann leads Missouri Highways and Transportation Commission
-Wu wins NSF CAREER Award for 2D metals work
-Academy of Civil Engineers induction and 150th celebration

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Higher Sound Levels In K-12 Classrooms Correlate To Lower Math Achievement Scores, Laura Caroline Brill, Lily M. Wang Nov 2021

Higher Sound Levels In K-12 Classrooms Correlate To Lower Math Achievement Scores, Laura Caroline Brill, Lily M. Wang

Durham School of Architectural Engineering and Construction: Faculty Publications

Sound levels from occupied classrooms have been gathered from 220 classrooms across four grade levels (3, 5, 8 and 11) over six school days each and processed with k-means clustering into speech and non-speech clusters. Three metrics describing the classroom acoustics, including the average daily A-weighted equivalent level for non-speech, the average daily difference between the A-weighted equivalent levels for speech and nonspeech (a signal to noise ratio), and the mid-frequency averaged reverberation time, were analyzed against classroom-aggregated standardized reading and math achievement test scores, while controlling for classroom demographics including socioeconomic status. Interactions between the metrics and demographics were …

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Preservation Of The Urban Development And Architectural Heritage Of The Clay Buildings In Hadhramout Region, Yemen Through Public Participation Of The Region’S Residents, Anwar Ahmed Baeissa Nov 2021

Preservation Of The Urban Development And Architectural Heritage Of The Clay Buildings In Hadhramout Region, Yemen Through Public Participation Of The Region’S Residents, Anwar Ahmed Baeissa

Hadhramout University Journal of Natural & Applied Sciences

The archeological heritage is considered the roots for civilization and development for any nation that maintains its development and flourishing. Therefore, if such roots were eradicated or exposed to destruction, this nation will be lost and lose its constituents of growth and flourishing. This study deals with the value concepts and policies to preserve the architectural heritage within the context of sustainable development system. The study was carried out through reviewing the concepts of heritage and heritage value (historical, artistic and functional). The aim of this study is to discuss the most important reasons behind the deterioration of urban areas …

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Investigation Of The Prevalence Of Faults In The Heating, Ventilation, And Air-Conditioning Systems Of Commercial Buildings, Amir Ebrahimifakhar Nov 2021

Investigation Of The Prevalence Of Faults In The Heating, Ventilation, And Air-Conditioning Systems Of Commercial Buildings, Amir Ebrahimifakhar

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

This dissertation describes a large-scale investigation of heating, ventilation, and air-conditioning (HVAC) fault prevalence in commercial buildings in the United States. A multi-year dataset with 36,556 pieces of HVAC equipment including air handling units (AHUs), air terminal units (ATUs), and packaged rooftop units (RTUs) was analyzed to determine values for several HVAC fault prevalence metrics. The primary source of data for this study comes from three commercial fault detection and diagnostics (FDD) providers. Since each FDD provider uses different terms to refer to the same fault in an HVAC system, a mapping function was created for each FDD provider’s dataset, …

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Gated Communities In The Uae: From A Social Sustainability Barrier To A Catalyst, Marwa Salem Al Jaberi Nov 2021

Gated Communities In The Uae: From A Social Sustainability Barrier To A Catalyst, Marwa Salem Al Jaberi

Theses

Gated communities are commonly defined as residential areas with restricted access, where commonly public spaces are privatized. The main characteristic of gated communities, based on the physical aspect of the development, involves gates, walls, guards, and closed-circuit surveillance. Scholarly studies have focused on the phenomenon of gated communities through covering its implications on the society and the city, where the benefits of this type of development have been frequently questioned. Gated communities have been linked with their negative impacts on the communities as socially segregated areas form the surrounding urban context. Nonetheless, several other studies advocated paradoxical theories related to …

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The Effects Of The Visual Environment On K-12 Student Achievement, Michael Kuhlenengel, Iason Konstantzos, Clarence E. Waters Oct 2021

The Effects Of The Visual Environment On K-12 Student Achievement, Michael Kuhlenengel, Iason Konstantzos, Clarence E. Waters

Durham School of Architectural Engineering and Construction: Faculty Publications

The varying indoor environments among educational buildings can have an impact on students’ ability to learn. This study looks at field data from 220 classrooms in the Midwest, United States, over a two-year period, to analyze the effects of the visual environment on student achievement. The visual environmental metrics considered within this scope include the three new view metrics introduced within the EN 17037 “Daylight of Buildings” standard (Horizontal Sight Angle, Outside Distance of View, and Number of View Layers), as well as standard daylight and electric lighting metrics, focusing on light availability and glare. To capture student achievement, math …

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Seismic Design Of Rigid Wall-Flexible Diaphragm Buildings, John W. Lawson, Dominic J. Kelly, Andre Filiatrault, Maria Koliou Oct 2021

Seismic Design Of Rigid Wall-Flexible Diaphragm Buildings, John W. Lawson, Dominic J. Kelly, Andre Filiatrault, Maria Koliou

Architectural Engineering

No abstract provided.

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Twisted Buildings: Concepts And Approaches, Amani Marmar, Sally Zouia, Sahar Ismail, Ahmad Hallik Sep 2021

Twisted Buildings: Concepts And Approaches, Amani Marmar, Sally Zouia, Sahar Ismail, Ahmad Hallik

Architecture and Planning Journal (APJ)

With the emerging of new technologies, the look for more sustainable towers appears. Through designing twisted towers, an aerodynamic and energy efficient structure can be made to reduce materials and wind loads towards it. By definition, a twisted building is one that has gradually rotating floor plates along its height. The problem here rises due to the risk of structural failure and lack of load transfer and unorganized interior function. Thus, this research aims to detect the design solutions used to execute the twisted buildings achieving stability, safety, and withstanding climatic effects. In order to accomplish the mentioned aim, the …

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Potentials Of Containers In Creating Modular Architectural Spaces, Karim Al-Khatib, Jinan Makkawi, Ali Kobeissi Sep 2021

Potentials Of Containers In Creating Modular Architectural Spaces, Karim Al-Khatib, Jinan Makkawi, Ali Kobeissi

Architecture and Planning Journal (APJ)

Containers are currently considered as one of the inventive trends of framing architectural objects. Container architecture is defined as the type of architecture that is characterised by the usage of steel containers as a structural elements and architectural envelope that can be presented as a part of architecture or a function that an activity can happen in it. Due to the specific dimensions that the container has, architects tend to use it to obtain modularity in their projects and the modular design strategies refer to using the containers as a standard unit to carry out the process, these containers are …

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Considerations Of Diversity, Equity, And Inclusion In Advanced Structural Engineering Courses, Claire Leader, Faith Sharp, Anahid Behrouzi Sep 2021

Considerations Of Diversity, Equity, And Inclusion In Advanced Structural Engineering Courses, Claire Leader, Faith Sharp, Anahid Behrouzi

Architectural Engineering

This paper presents various techniques investigated by the authors to bring discussion of societal impact into two advanced structural engineering courses taught at Cal Poly – San Luis Obispo within the Architectural Engineering (ARCE) department during the 2020-21 academic year. The first was an undergraduate reinforced concrete design lecture/lab class where the instructor was able to convey the stories of the individuals and events that influence the ACI 318 code and ASTM standards used for concrete design. The second was a graduate nonlinear structural behavior lecture class that involves a weekly seminar by guest speakers who presented case studies with …

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3d Printed Concrete & Polymer Concrete For Infrastructure Applications, Daniel Heras Murcia Sep 2021

3d Printed Concrete & Polymer Concrete For Infrastructure Applications, Daniel Heras Murcia

Civil Engineering ETDs

Additive manufacturing technology has been established as one of the fastest-growing building technologies worldwide. Three-dimensional concrete printing (3DCP) has developed an increasing interest in the last decade due to its prospects as a transformative technology for industries such as the concrete precast. Besides the improvements in automation technologies in construction, traditional construction has faced considerable challenges: high accident rates, labor dependency, significant potential for automation, and high costs associated with the use of traditional formwork. In this context, three-dimensional concrete, also referred to as physical prototyping, is a novel construction technique in which the concrete is extruded layer-to-layer. 3DCP is …

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Simulation For A Mems-Based Ctrnn Ultra-Low Power Implementation Of Human Activity Recognition, Muhammad Emad-Ud-Din, Mohammad H. Hasan, Roozbeh Jafari, Siavash Pourkamali, Fadi M. Alsaleem Sep 2021

Simulation For A Mems-Based Ctrnn Ultra-Low Power Implementation Of Human Activity Recognition, Muhammad Emad-Ud-Din, Mohammad H. Hasan, Roozbeh Jafari, Siavash Pourkamali, Fadi M. Alsaleem

Durham School of Architectural Engineering and Construction: Faculty Publications

This paper presents an energy-efficient classification framework that performs human activity recognition (HAR). Typically, HAR classification tasks require a computational platform that includes a processor and memory along with sensors and their interfaces, all of which consume significant power. The presented framework employs microelectromechanical systems (MEMS) based Continuous Time Recurrent Neural Network (CTRNN) to performHAR tasks very efficiently. In a real physical implementation, we show that the MEMS-CTRNN nodes can perform computing while consuming power on a nano-watts scale compared to the micro-watts state-of-the-art hardware. We also confirm that this huge power reduction doesn’t come at the expense of reduced …

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Arise (Certcoin)- Inspiring Demand For Sustainable Energy Skills, Barry Mcauley, Paul Mccormack, Andrew Hamilton, Eduardo Rebelo Sep 2021

Arise (Certcoin)- Inspiring Demand For Sustainable Energy Skills, Barry Mcauley, Paul Mccormack, Andrew Hamilton, Eduardo Rebelo

Conference papers

The European AEC Sector now faces impending challenges over the next decade concerning escalating climate targets. To reach these targets, it vital that the green economy deliver a better-skilled workforce and develops new competencies and methods of working. Training in the domain of digital construction technologies and processes, such as Building Information Modelling (BIM), are now seen as essential upskilling vehicles that must be embraced if the sector is to transition towards a greener agenda. To assist in meeting these training needs a selection of partners from the BIM EPA will partake in the Horizon 2020 ARISE project, aiming to …

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Framework To Develop Time- And Voltage-Dependent Building Load Profiles Using Polynomial Load Models, Andrew Parker, Mhd Anas Alkrch, Kevin James, Ahmad Almaghrebi, Mahmoud Alahmad Sep 2021

Framework To Develop Time- And Voltage-Dependent Building Load Profiles Using Polynomial Load Models, Andrew Parker, Mhd Anas Alkrch, Kevin James, Ahmad Almaghrebi, Mahmoud Alahmad

Durham School of Architectural Engineering and Construction: Faculty Publications

The power consumption of buildings over the course of each minute, hour, day and season plays a major role in how this load influences the Electric Power System voltage and frequency, and vice versa. This consumption is based on the building's load component types, efficiencies, and how they consume power and react to changes in real time. Due to this complexity, standard full-building load models are typically voltage-invariant. This paper proposes a novel framework to transform these voltage-invariant building load models into fully time- and voltage-dependent load profiles using available data on the voltage sensitivity of individual load components. While …

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A Case Study To Quantify Variability In Building Load Profiles, Andrew Parker, Sam Moayedi, Kevin James, Dongming Peng, Mahmoud Alahmad Sep 2021

A Case Study To Quantify Variability In Building Load Profiles, Andrew Parker, Sam Moayedi, Kevin James, Dongming Peng, Mahmoud Alahmad

Durham School of Architectural Engineering and Construction: Faculty Publications

Recent technology development and penetration of advanced metering infrastructure (AMI), advanced building control systems, and the internet-of-things (IoT) in the built environment are providing detailed information on building operation, performance, and user's comfort and behavior. Building owners can obtain a wide range of energy consumption details at various levels of time granularity to augment their decisions as they manage the building operation and interact with the grid. AMI data are providing a new level of detail and visibility that may enhance building services and assets in the smart grid domain and make buildings inch closer to becoming a grid-interactive energy …

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Common Ground Newsletter Fall 2021, Missouri University Of Science And Technology Sep 2021

Common Ground Newsletter Fall 2021, Missouri University Of Science And Technology

Common Ground

-Lighting the way with solar panel inspections
-CArEE Miner athletes score recognition
-Celebrating 150 years of civil engineering at S&T

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Equilibrium Without Statics: The Modern Muller Breslau Method, Claire Tyler Ballard Sep 2021

Equilibrium Without Statics: The Modern Muller Breslau Method, Claire Tyler Ballard

Architectural Engineering

This senior project report discusses the applications of the Modern Muller-Breslau Method. To complete this project, the student learned this method and created unique example problems. The report explores these unique example problems with explanations of the processes to solve each problem. The examples shown consist of determinant beams, frames, trusses, and 3-hinged arches. In addition, a more complex structural analysis topic, plastic analysis, will be explained. Lastly, the report concludes with an insight into a student’s experience with the method.

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Sustainable Building Materials Of The Future: Architectural Forms And Structural Design, Sean Sadler, Moritz Meditz Aug 2021

Sustainable Building Materials Of The Future: Architectural Forms And Structural Design, Sean Sadler, Moritz Meditz

Symposium of Student Scholars

This research investigates the use of non-rigid formwork and the techniques aiming to create more efficient concrete forms. During casting, concrete takes the shape of its formwork; traditionally, these formworks are made of rigid materials like steel or wood. The results are prismatic members, which are not optimized for material usage but only for simplicity in construction. Most of the research in the area focuses on improving the constituent materials, while the formworks have remained unchanged throughout the years. By using the approach described in this study, optimized shapes are achieved. These geometries can save up to 30% of the …

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Digital Construction And Bim Research In Ireland 2016-2020, Barry Mcauley, Roger P. West, Alan V. Hore Aug 2021

Digital Construction And Bim Research In Ireland 2016-2020, Barry Mcauley, Roger P. West, Alan V. Hore

Conference papers

As the construction industry opens up post pandemic, new and significant challenges will demand considerable expertise, not least in financial viability, solving the housing crisis and facing the very significant climate change pressures to make the industry less wasteful and less carbon intensive. This presents an excellent opportunity to further inculcate aspects of lean construction, particularly BIM into many aspects of construction not traditionally associated with digital construction, provided the necessary expertise is available and known to exist. Following a well-received recent conference paper summarising BIM-related research published by academics in Ireland’s higher education institutions in 2020, this paper will …

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Comparison Between Precast And Cast-In-Place Reinforced Concrete Structures In Mexico City, Santiago Rodriguez Sanchez Aug 2021

Comparison Between Precast And Cast-In-Place Reinforced Concrete Structures In Mexico City, Santiago Rodriguez Sanchez

International Programs

Both Precast and Cast-in-place reinforced concrete structures have its own advantages and disadvantages. However, Precast RC structures have more advantages than Cast-in-place RC structures. Furthermore, it has been found that, under seismic loads, Precast structures can behave similar to Cast-in-place ones. Therefore Precast structures are an optimal option in Mexico City.

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Evaluating Prediction Models Of Creep And Drying Shrinkage Of Self-Consolidating Concrete Containing Supplementary Cementitious Materials/Fillers, Micheal Asaad, George Morcous Aug 2021

Evaluating Prediction Models Of Creep And Drying Shrinkage Of Self-Consolidating Concrete Containing Supplementary Cementitious Materials/Fillers, Micheal Asaad, George Morcous

Durham School of Architectural Engineering and Construction: Faculty Publications

Supplementary cementitious materials (SCMs) and fillers play an important role in enhancing the mechanical properties and durability of concrete. SCMs and fillers are commonly used in self-consolidating concrete (SCC) mixtures to also enhance their rheological properties. However, these additives could have significant effects on the viscoelastic properties of concrete. Existing models for predicting creep and drying shrinkage of concrete do not consider the effect of SCM/filler on the predicted values. This study evaluates existing creep and drying shrinkage models, including AASHTO LRFD, ACI209, CEB-FIP MC90-99, B3, and GL2000, for SCC mixtures with different SCMs/fillers. Forty SCC mixtures were proportioned for …

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Sullivan Sustainable Housing Unit, Riem Rostom Aug 2021

Sullivan Sustainable Housing Unit, Riem Rostom

2021 Spring Reports (Sullivan)

Students in ENGR401 were tasked with providing recommendations for an energy efficient heating and cooling system for a housing design provided by IAD251. Students performed necessary calculations and compared information with sustainability factors. There are also further recommendations for building sustainable housing.

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The Facility Infection Risk Estimator™: A Web Application Tool For Comparing Indoor Risk Mitigation Strategies By Estimating Airborne Transmission Risk, Marcel Harmon, Josephine Lau Aug 2021

The Facility Infection Risk Estimator™: A Web Application Tool For Comparing Indoor Risk Mitigation Strategies By Estimating Airborne Transmission Risk, Marcel Harmon, Josephine Lau

Durham School of Architectural Engineering and Construction: Faculty Publications

The COVID-19 pandemic created needs for (a) estimating the existing airborne risk of infection from SARS-CoV-2 in existing facilities and new designs and (b) estimating and comparing the impacts of engineering and behavioural strategies for contextually reducing that risk. This paper presents the development of a web application to meet these needs, the Facility Infection Risk Estimator™, and its underlying Wells–Riley based model. The model specifically estimates (a) the removal efficiencies of various settling, ventilation, filtration and virus inactivation strategies and (b) the associated probability of infection, given the room physical parameters and number of individuals infected present with either …

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The Art Of The Climbing Wall, Gavin P. Day Aug 2021

The Art Of The Climbing Wall, Gavin P. Day

Undergraduate Honors Theses

The aim of my thesis is to share the intricacies of climbing wall design, and the building blocks of art, science, and philosophy that go into the work. I will also be detailing my journey of learning through mentorship, trial and error, and my own experience with climbing. All of this culminates in a redesign of the current climbing wall at ETSU’s Basler Center for Physical Activity. While there is limited information on climbing wall design theory, insight is given through industry standards, competition regulations, and interdisciplinary design philosophies

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