Funicular Shell Exploration: Form Finding And Fabrication,
2022
California Polytechnic State University, San Luis Obispo
Funicular Shell Exploration: Form Finding And Fabrication, Alexis Truong, Adria Burton, Ethan Mach
Architectural Engineering
Analysis and evaluation of interdisciplinary challenges associated with integrating the design and construction processes to deliver innovative thin shell structures.
Using Flight Simulation As A Convenient Method For Uas Flight Assessment For Contractors,
2022
Clemson University
Using Flight Simulation As A Convenient Method For Uas Flight Assessment For Contractors, Colin Dees, Joseph M. Burgett
The Professional Constructor
Operating an unmanned aircraft system (UAS) for commercial purposes in the United States requires the pilot to pass the Federal Aviation Administration’s (FAA’s) knowledge exam to earn their UAS license. The exam does not include a practical component where flight proficiency is assessed. This represents a source of risk for contractors if flight proficiency is not evaluated in another way. The National Institute of Standards and Technology is a federal agency and has developed the Basic Maneuvering Test (BMT). It is the only nationally recognized UAS flight proficiency exam. While not required, the construction industry can benefit by using this …
Arce 415 Portfolio,
2022
California Polytechnic State University, San Luis Obispo
Arce 415 Portfolio, Jay Skaff, Audrey Williams, Sarah Tom
Architectural Engineering
The purpose of this studio is to design a sun shelter for children at the SLO Botanical Gardens. It will be used for outdoor presentations and learning experiences. When coming up with the initial design of the shell structure for the SLO Botanical Gardens, the team needed to consider the material being used, the constructability of the structure, the people who would be using the structure, and the overall lifespan of the shell.
Guastavino: Learn By Doweling,
2022
California Polytechnic State University, San Luis Obispo
Guastavino: Learn By Doweling, Audrey Luu, Gabrielle Favro, Robert Pulido, Cameron Grant
Architectural Engineering
We embarked on a journey into the world of shells this quarter! We began the process with form finding using rhino and grasshopper. Then made a study model using laser cutters to brainstorm ways to construct the real-life model. As a class, we completed two shell structures.
Development Of The Human Scale Twelve-Node Model,
2022
California Polytechnic State University, San Luis Obispo
Development Of The Human Scale Twelve-Node Model, Tebrez W. Khan
Architectural Engineering
The attempted creation of a full-scale twelve-node model made of PVC pipe and golf balls. Intended use of the structure was for students to tactically learn from the model.
Population Growth Vs. Landfill Capacity Vs. Recycling Mandates In California Counties,
2022
California Polytechnic State University, San Luis Obispo
Population Growth Vs. Landfill Capacity Vs. Recycling Mandates In California Counties, Thomas Soares
Architectural Engineering
As population growth increases in Monterey, Fresno, Kern, San Luis Obispo, Santa Barbara, and Ventura counties, so does waste production. More waste is a cause for concern because landfills have limited capacities. In order to combat the increase in waste, cities, counties, and the state are creating recycling mandates to ensure waste is being handled appropriately. More specifically, the trash generated by residents and construction and demolition (C&D) materials are being recycled and reused instead of thrown into landfills. This report indicates that increases in recycling mandates in California cannot withstand the increase in waste generation from population growth. Another …
Team Torroja,
2022
California Polytechnic State University, San Luis Obispo
Team Torroja, Justine Teoh, Lindsey Brophy, Brandon Watrin
Architectural Engineering
For this project, we were tasked with designing a sun shelter by SLO Botanical Gardens for their Children's Garden. It was requested that the form by derived from structural shells. The structure is to serve as a multi-purpose space to host a variety of activities on the 30 foot by 60 foot site.
Reaching A Young Audience In City And Regional Planning,
2022
California Polytechnic State University, San Luis Obispo
Reaching A Young Audience In City And Regional Planning, Kristie P. Woo, Vinnie P. Chen
City and Regional Planning
Currently, urban planning is a rare discussion topic in schools. The youth are often excluded in the planning process as most adults question their intellectual capacity and they hold little to no political power. However, this does not have to be the case - planning has the potential to change young minds when expressed in a medium children can understand.
Impact Of Covid-19 On Sense Of Community / Student Engagement,
2022
Missouri State University
Impact Of Covid-19 On Sense Of Community / Student Engagement, Aaron Sauer, Richard Gebken, Richard Bruce
The Professional Constructor
The spring of 2020 was a time of unprecedented change for higher education institutions. The COVID-19 pandemic forced schools to re-think instructional delivery and the undergraduate experience as they implemented measures to protect students, faculty, and staff. Unraveling the impact of the pandemic on higher education will take many years. This study investigated how the institutional response in the return to campus following the pandemic influenced sense of community, a component of student engagement. A previously developed instrument was delivered at two construction management programs in the U.S. Midwest before and after the pandemic. The two schools were similar in …
Hope's Village Of San Luis Obispo Charging Cabinet,
2022
California Polytechnic State University, San Luis Obispo
Hope's Village Of San Luis Obispo Charging Cabinet, Jackson S. Thomas, Payton E. Strout
Construction Management
This paper will review the steps the students took to provide Hope's Village of SLO with a new charging cabinet. Hope's Village of SLO is a local non profit that provides support for the central coast homeless community. Becky Jorgensen, who leads the organization, reached out to the students expressing her want for a new cabinet that people could use to charge their phones and tablets. The students then conceptualized the design with the help of an architecture student, applied for and received funding from the Alliance Group, purchased all materials and built the cabinet. This paper will walk you …
Proposal For Adobe Earthbag Disaster-Relief Structure,
2022
California Polytechnic State University, San Luis Obispo
Proposal For Adobe Earthbag Disaster-Relief Structure, John Camacho
Construction Management
The science behind creating an adobe house has been around for thousands of years; the primitive mixture contains only dirt, water, and straw. Left to cure in bricks or as a single cast-in-place system, the structure will provide long-lasting protection from the elements. Science has taken this a step further with the introduction of cementitious admixtures and reinforcement. The result is an adobe structure with exemplary thermo-retentive properties and load-bearing capabilities. This project provides an analysis on the “SuperAdobe” earthbag system that has been put into practice by independent contractors and housing-relief initiatives. The goal of the project was to …
The Integration Of Virtual Reality In The Commercial Construction Industry,
2022
California Polytechnic State University, San Luis Obispo
The Integration Of Virtual Reality In The Commercial Construction Industry, Justin T. Gin
Construction Management
Virtual reality has recently been spreading throughout the commercial construction industry rapidly. Some of its capabilities are safety training, helping spot Americans with Disabilities Act (ADA) issues, logistics planning, and virtual walkthroughs. Many construction companies were starting to utilize virtual reality's advantages until COVID-19 hit. The initial wave of COVID slowed down construction in general as well as the need or use of virtual reality. Now, some companies are worried about the health risks and implementation issues that virtual reality headsets might bring while other companies are optimistic about the future of virtual reality. This report will explore the different …
Bc-Dunet-Based Segmentation Of Fine Cracks In Bridges Under A Complex Background,
2022
Missouri University of Science and Technology
Bc-Dunet-Based Segmentation Of Fine Cracks In Bridges Under A Complex Background, Tao Liu, Liangji Zhang, Guoxiong Zhou, Weiwei Cai, Chuang Cai, Liujun Li
Civil, Architectural and Environmental Engineering Faculty Research & Creative Works
Crack is the external expression form of potential safety risks in bridge construction. Currently, automatic detection and segmentation of bridge cracks remains the top priority of civil engineers. With the development of image segmentation techniques based on convolutional neural networks, new opportunities emerge in bridge crack detection. Traditional bridge crack detection methods are vulnerable to complex background and small cracks, which is difficult to achieve effective segmentation. This study presents a bridge crack segmentation method based on a densely connected U-Net network (BC-DUnet) with a background elimination module and cross-attention mechanism. First, a dense connected feature extraction model (DCFEM) integrating …
Influence Of Phosphorus Sources On The Compressive Strength And Microstructure Of Ferronickel Slag-Based Magnesium Phosphate Cement,
2022
Missouri University of Science and Technology
Influence Of Phosphorus Sources On The Compressive Strength And Microstructure Of Ferronickel Slag-Based Magnesium Phosphate Cement, Cuirong Yan, Hongyan Ma, Zhongqiu Luo, Xintao Zhou, Luxing Wang
Civil, Architectural and Environmental Engineering Faculty Research & Creative Works
Electric furnace ferronickel slag (EFS) is a typical magnesium-rich industrial by-product discharged from the manufacture of nickel and iron-nickel alloys. The approach to use it as the raw material for the preparation of magnesium phosphate cement (MPC) has potential and proves effec-tive. In this study, three different phosphorus sources (PS) including phosphoric acid (H3 PO4, PA), sodium dihydrogen phosphate (NaH2 PO4, SDP) and potassium dihydrogen phosphate (KH2 PO4, PDP) were used to react with EFS to prepare the EFS-based MPC (EMPC), and the effects of raw material mass ratio (EFS/PA, EFS/SDP, EFS/PDP) on the compressive strength, early hydration temperature and …
M&S Highlight: De Larrard Et Al. (1998) Fresh Concrete: A Herschel-Bulkley Material,
2022
Missouri University of Science and Technology
M&S Highlight: De Larrard Et Al. (1998) Fresh Concrete: A Herschel-Bulkley Material, Dimitri Feys
Civil, Architectural and Environmental Engineering Faculty Research & Creative Works
No abstract provided.
Understanding Effects Of Permafrost Degradation And Coastal Erosion On Civil Infrastructure In Arctic Coastal Villages: A Community Survey And Knowledge Co-Production,
2022
Missouri University of Science and Technology
Understanding Effects Of Permafrost Degradation And Coastal Erosion On Civil Infrastructure In Arctic Coastal Villages: A Community Survey And Knowledge Co-Production, Min Liew, Ming Xiao, Louise Farquharson, Dmitry Nicolsky, Anne Jensen, Vladimir Romanovsky, Jana Peirce, Lilian Alessa, Christopher Mccomb, Xiong Zhang, Benjamin Jones
Civil, Architectural and Environmental Engineering Faculty Research & Creative Works
This paper presents the results of a community survey that was designed to better under-stand the effects of permafrost degradation and coastal erosion on civil infrastructure. Observations were collected from residents in four Arctic coastal communities: Point Lay, Wainwright, Utqiaġvik, and Kaktovik. All four communities are underlain by continuous ice-rich permafrost with varying degrees of degradation and coastal erosion. The types, locations, and periods of observed permafrost thaw and coastal erosion were elicited. Survey participants also reported the types of civil infrastructure being affected by permafrost degradation and coastal erosion and any damage to residential buildings. Most survey participants reported …
Spatiotemporal Analysis Of Urban Road Congestion During And Post Covid-19 Pandemic In Shanghai, China,
2022
Missouri University of Science and Technology
Spatiotemporal Analysis Of Urban Road Congestion During And Post Covid-19 Pandemic In Shanghai, China, Pengfei Xu, Weifeng Li, Xianbiao Hu, Hangbin Wu, Jian Li
Civil, Architectural and Environmental Engineering Faculty Research & Creative Works
Coronavirus Disease 2019 (COVID-19) has become one of the most serious global health crises in decades and tremendously influence the human mobility. Many residents changed their travel behavior during and after the pandemic, especially for a certain percentage of public transport users who chose to drive their owned vehicles. Thus, urban roadway congestion has been getting worse, and the spatiotemporal congestion patterns has changed significantly. Understanding spatiotemporal heterogeneity of urban roadway congestion during and post the pandemic is essential for mobility management. In this study, an analytical framework was proposed to investigate the spatiotemporal heterogeneity of urban roadway congestion in …
Revealing Bluff-Body Aerodynamics On Low-Rise Buildings Under Tornadic Winds Using Numerical Laboratory Tornado Simulator,
2022
Missouri University of Science and Technology
Revealing Bluff-Body Aerodynamics On Low-Rise Buildings Under Tornadic Winds Using Numerical Laboratory Tornado Simulator, Ryan Honerkamp, Guirong Grace Yan, John Van De Lindt
Civil, Architectural and Environmental Engineering Faculty Research & Creative Works
Tornadoes result in death and property loss in communities around the world. To quantify the actions of tornadoes on civil structures, researchers have built physical laboratory tornado simulators to simulate tornadoes in the lab environment and tested building models in the simulated tornadic wind field, which is similar to wind tunnel testing when quantifying the wind effects induced by straight-line winds. Unfortunately, physical tornado simulators are much less common than straight-line wind tunnels, leading to the lack of research on bluff-body aerodynamics on civil structures under tornadic winds. Considering that it is expensive to conduct experimental testing in physical tornado …
Simplified Analytical Model To Assess Key Factors Influenced By Fiber Alignment And Their Effect On Tensile Performance Of Uhpc,
2022
Missouri University of Science and Technology
Simplified Analytical Model To Assess Key Factors Influenced By Fiber Alignment And Their Effect On Tensile Performance Of Uhpc, Le Teng, Huanghuang Huang, Kamal Khayat, Xiaojian Gao
Civil, Architectural and Environmental Engineering Faculty Research & Creative Works
The increase in single-fiber pullout strength usually improves tensile strength and toughness of UHPC. An increase in fiber orientation angle (θ) up to 45° to the direction of pullout load was found to enhance the single-fiber pullout strength. However, such increase in predominant θ value along tensile strength specimens led to a reduction in tensile strength of UHPC. In order to elucidate this controversial observation, analytical models combined with experiments were carried out to assess the key factors influencing the tensile properties of UHPC due to variations of fiber orientation. The test parameters involved the evaluation of the effect of …
Solving The Negative Earnings Dilemma Of Multistage Bidding In Public Construction And Infrastructure Projects: A Game Theory-Based Approach,
2022
Missouri University of Science and Technology
Solving The Negative Earnings Dilemma Of Multistage Bidding In Public Construction And Infrastructure Projects: A Game Theory-Based Approach, Muaz O. Ahmed, Islam H. El-Adaway, Kalyn T. Coatney
Civil, Architectural and Environmental Engineering Faculty Research & Creative Works
With the tremendous increase in spending on public projects, contractors need to employ efficient and effective bidding strategies to cope with the competitive bidding environment. Usually, general contractors carry a portion of the work and subcontract other parts to eventually submit a holistic joint bid. This bidding setting is referred to as multistage bidding where subcontractors submit their quotations/bids to the general contractor, after which the general contractor submits a final joint bid for the whole project. In a multistage bidding environment, general contractors may be faced with an increase in the probability of negative or below normal profits. Despite …
