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Articles 31 - 60 of 133
Full-Text Articles in Construction Engineering and Management
Stick Built Vs. Precut Wall Framing For New Home Construction: A Comparison Of Framing Labor Hours, Waste Hauls, And Purchase Orders, Eric A. Holt, Mark Laliberte, Tristan Grant, Jordan Dentz
Stick Built Vs. Precut Wall Framing For New Home Construction: A Comparison Of Framing Labor Hours, Waste Hauls, And Purchase Orders, Eric A. Holt, Mark Laliberte, Tristan Grant, Jordan Dentz
The Professional Constructor
Due to many trends in the construction industry (material cost increase, labor shortages, supply chain issues, pandemic, market demand outpacing supply), the homebuilding industry is looking for alternative ways to frame homes. In response to the National Housing Endowment (NHE) Request for Proposal, the researchers reviewed the literature on the housing market’s current state regarding the scale and scope of the skilled construction framers shortage and the current market share of single-family framing method; stick-built vs. precut framing packages. Working with industry partners, the team analyzed time studies for multiple new home builds. It was found that precut wall framing …
Total Cost Of Ownership Of Battery-Powered Vs. Hardwired Sensor Faucets In Commercial And Educational Construction Projects, Marie Patterson, Blake Wentz
Total Cost Of Ownership Of Battery-Powered Vs. Hardwired Sensor Faucets In Commercial And Educational Construction Projects, Marie Patterson, Blake Wentz
The Professional Constructor
Owners who are pursing the construction of a new commercial building are becoming increasingly more interested in the sustainability, energy efficiency and life cycle costs of their proposed project. These owners are asking designers and construction companies to develop innovative strategies to lower their utility use and total cost in their projects. One area of opportunity to meet this owner need is the decision to use sensor lavatory faucets that are either battery-powered or hardwired.Several construction projects of various types and locations were analyzed to determine the total cost of ownership of both types of sensor faucets over a 12-year …
Best Practices For Reducing Construction Accidents Involving Hispanic Construction Workers, Michael E. Asuquo, Khalid Siddiqi
Best Practices For Reducing Construction Accidents Involving Hispanic Construction Workers, Michael E. Asuquo, Khalid Siddiqi
The Professional Constructor
The objective of this study was to determine best practices for reducing accidents among Hispanic construction workers. It was hypothesized that language barrier between the Hispanics and American workers contributed immensely to high rate of construction accidents on industrial projects. Accident case studies and questionnaire survey were both used. Data was collected through semi-structured interviews with Hispanic workers involved in industrial construction projects in Metro Atlanta. Findings from the study concluded that most accidents involving Hispanic workers were caused due to lack of communication from supervisors, ignorance of workers on work procedures, lack of equipment training, and worker negligence. Language …
Construction Management Internship: A Key Opportunity For Assessment And Continuous Curriculum Improvement, James S. Vaux, Bree Dority, Dana E. Vaux
Construction Management Internship: A Key Opportunity For Assessment And Continuous Curriculum Improvement, James S. Vaux, Bree Dority, Dana E. Vaux
The Professional Constructor
The internship is an integral part of most Construction Management curricula. Studies have noted the importance and reciprocal value of internships for the student, the employer, and the academic program. However, to date, no studies have specifically outlined the value internships provide to the CM program for assessment and evaluation. This paper examines the value of the CM internship as an indirect measure to assess and incorporate change into program curricula. With 10 years of qualitative and quantitative data collected from CM student interns, industry employers, and university internship supervisors, this study supports that CM internships are a valuable tool …
Airborne Contaminant Dispersal In Critical Built Environments, Arup Bhattacharya
Airborne Contaminant Dispersal In Critical Built Environments, Arup Bhattacharya
All Dissertations
The Indoor Air Quality (IAQ), being one of the most significant exposures to human beings, encompasses the concepts of comfort and safety from unwanted contaminants. Whereas the thermal comfort is controlled through proper conditioning and distribution of ventilated air, controlling the airborne contaminants requires careful investigation of the flow characteristics. IAQ translates to different requirements, depending on the intended use of the indoor environment. In critical indoor spaces such as Operating Rooms and Cleanrooms, the principal focus of IAQ is to remove/contain/divert contaminants flowing with the airstream to maintain the required sterility, as contamination can lead to adverse patient/product outcomes. …
Crack Control And Bond Performance Of Alternative Coated Reinforcements In Concrete, Sachin Sreedhara
Crack Control And Bond Performance Of Alternative Coated Reinforcements In Concrete, Sachin Sreedhara
All Dissertations
Concrete cracking in structures is a ubiquitous problem which can lead to the deterioration of the structure. Other than affecting the strength aspect of a structure, cracking impacts the serviceability criteria as well. Although cracking phenomenon in any structure is highly inevitable, it has to be minimized in order to maintain a structure’s life effectively. Cracking in reinforced concrete structures is related to the bond strength developed between the bar and the concrete. It also depends on an ability of the bar to resist the stresses due to shrinkage to minimize the crack. Another important aspect is the resistance offered …
Machine Learning-Enabled Model-Based Condition Assessment Of Water Pipelines By Leveraging Hydraulic Monitoring Data, Ahmad Momeni
Machine Learning-Enabled Model-Based Condition Assessment Of Water Pipelines By Leveraging Hydraulic Monitoring Data, Ahmad Momeni
All Dissertations
Overpopulation and climate change have direly challenged the freshwater resources, specifically potable water supplied by water distribution networks (WDNs). One aggravating issue associated with the WDNs is associated with the pipeline leakage, which accounts for almost 20% of freshwater loss in WDNs throughout the US. Leakage detection and severity measurement are of top
asset management priorities in water utilities to minimize and mitigate complicated risks attributed to background and burst leakage. Accordingly, decline in other pipe condition parameters such as effective hydraulic diameters and roughness coefficients, which are complex and uncertain in nature, abets leakage by worsening the WDN status …
Digitalization Of Construction Project Requirements Using Natural Language Processing (Nlp) Techniques, Fahad Ul Hassan
Digitalization Of Construction Project Requirements Using Natural Language Processing (Nlp) Techniques, Fahad Ul Hassan
All Dissertations
Contract documents are a critical legal component of a construction project that specify all wishes and expectations of the owner toward the design, construction, and handover of a project. A single contract package, especially of a design-build (DB) project, comprises hundreds of documents including thousands of requirements. Precise comprehension and management of the requirements are critical to ensure that all important explicit and implicit requirements of the project scope are captured, managed, and completed. Since requirements are mainly written in a natural human language, the current manual methods impose a significant burden on practitioners to process and restructure them into …
The Professional Constructor, Full Issue, Volume 47, Number 01
The Professional Constructor, Full Issue, Volume 47, Number 01
The Professional Constructor
No abstract provided.
Current State Of The Workforce Demographics And Knowledge Transfer Strategies In The Southeast United States, Vivek Sharma, Dhaval Gajjar, Kapil Madathil, David Davis, Shreyas Patel
Current State Of The Workforce Demographics And Knowledge Transfer Strategies In The Southeast United States, Vivek Sharma, Dhaval Gajjar, Kapil Madathil, David Davis, Shreyas Patel
The Professional Constructor
The construction industry is a very diverse industry due to the unique nature of projects and expertise within various construction companies driven by multiple regional/national factors. The United States Department of Labor reported 44% of the current US employed population will be above 65 in eleven years by 2028, making workforce studies and knowledge transfer a key driver in leading construction business models. This study conducted an in-depth investigation in the southeast region of the US on the current state of workforce demographics and the need for knowledge transfer within the ranks of management coupled with trade personnel. The study …
Perceptions Of Remote Work Within The Construction Industry Resulting From The Covid-19 Pandemic In The South Central United States, Sara B. Overturf, Ben Bigelow, Matthew Reyes
Perceptions Of Remote Work Within The Construction Industry Resulting From The Covid-19 Pandemic In The South Central United States, Sara B. Overturf, Ben Bigelow, Matthew Reyes
The Professional Constructor
Working remotely became increasingly popular over the previous two years, given organization’s need to rapidly adjust to changing conditions as a result of the Coronavirus. It allowed companies to more easily adapt to stay-at home orders and create a safer environment for their employees. While working remotely can have a positive impact on employees, there are also challenges to overcome for both employees and organizations. This study focused on understanding both the prevalence and implementation of remote work within the commercial Construction industry to face the professional challenges resulting from the Coronavirus. This paper provides insight into companies that have …
Educating The Construction Client: Training Strategy For Buyers Of Commercial Design And Construction Services, Michael J. Emmer
Educating The Construction Client: Training Strategy For Buyers Of Commercial Design And Construction Services, Michael J. Emmer
The Professional Constructor
Business owners can face a myriad of challenges when venturing into a new construction project. Most of the design and construction process is unfamiliar territory as compared to their customary business operations and owners face a wide assortment of issues when making the decision to build a new facility. Consequently, the majority of owners are entirely out of their business element when deciding to enter into the undertaking of a new building project. Since most of the risk with any given project rests with the Owner, better training and strategies for owners will lead to a higher likelihood of project …
Using Flight Simulation As A Convenient Method For Uas Flight Assessment For Contractors, Colin Dees, Joseph M. Burgett
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 …
Impact Of Covid-19 On Sense Of Community / Student Engagement, Aaron Sauer, Richard Gebken, Richard Bruce
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 …
The Professional Constructor, Full Issue, Volume 46, Number 02
The Professional Constructor, Full Issue, Volume 46, Number 02
The Professional Constructor
No abstract provided.
Evaluation Of In-Cab Air Quality For Nonroad Diesel Construction Equipment, Phil Lewis, Sherif El Khouly, Adam Mayer, Jeremy Johnson
Evaluation Of In-Cab Air Quality For Nonroad Diesel Construction Equipment, Phil Lewis, Sherif El Khouly, Adam Mayer, Jeremy Johnson
The Professional Constructor
Previous research indicates that air quality near the cabs of nonroad diesel equipment may exceed recommended exposure limits for certain pollutants. The objective of this case study was to collect and analyze air pollutant data near the cabs of nonroad diesel equipment while performing real world activities. Using state-of-the-art instrumentation, the research team conducted 24 tests on nine different items of nonroad equipment. The team collected data related to pollutant concentrations of carbon monoxide, carbon dioxide, nitric oxide, nitrogen dioxide, particulate matter, and black carbon. Average concentrations of carbon monoxide and nitric oxide did not exceed published exposure limits on …
Prefabrication In Buildings With Focus On Emerging Mep Rack Systems, Mark Daniels, M.G. Matt Syal
Prefabrication In Buildings With Focus On Emerging Mep Rack Systems, Mark Daniels, M.G. Matt Syal
The Professional Constructor
The growth in technology and automation has influenced the construction industry to explore prefabrication alternatives in building design and construction. In addition, the shortage of skilled labor is accelerating the push for the adoption of prefabrication in building industry. This paper provides an overview of the present construction market and labor trends and summarizes various levels and categories of prefabrication. It then provides detailed information on an emerging MEP prefabricated solution known as the MEP rack systems. The implementation of the MEP rack systems is discussed with the help of a hospital case study project. It concludes with the discussion …
Case Study Of Using Unmanned Aircraft Systems To Support Bridge Inspections, Joseph M. Burgett, Gurcan Comert
Case Study Of Using Unmanned Aircraft Systems To Support Bridge Inspections, Joseph M. Burgett, Gurcan Comert
The Professional Constructor
This paper presents the results of a case study conducted to evaluate the potential benefit of unmanned aircraft systems (UAS), commonly referred to as drones, as a tool to improve the bridge inspection workflow. The study conducted two experiments to determine how well deficiencies could be detected using a UAS. Both experiments were conducted using the same test bridge. The first experiment was carried out by the bridge inspection engineers (BIEs), who had previously inspected the bridge using traditional methods. They used the drone to search for inspection points identified in the inspection report. The second experiment was conducted by …
Stick Built Vs. Panelize Wall/Truss Framing For New Home Construction: A Time Study Labor Comparison., Eric A. Holt, Jim Anzlovar, Alexander Welsh
Stick Built Vs. Panelize Wall/Truss Framing For New Home Construction: A Time Study Labor Comparison., Eric A. Holt, Jim Anzlovar, Alexander Welsh
The Professional Constructor
Due to many trends in the construction industry (material cost increase, labor shortages, supply chain issues, pandemic, market demand outpacing supply), the homebuilding industry is looking for alternative ways to frame homes. In response to the National Housing Endowment (NHE) Request for Proposal, the researchers reviewed the literature on the housing market’s current state regarding the scale and scope of the skilled construction framers shortage and the current market share of single-family framing method; stick-built vs. panelization. Working with industry part ners, the team analyzed time studies for multiple new home builds. It was found that panelized wall framing systems …
Minority And Female Participation In Construction Industry Apprenticeship Programs, Richard Bruce, Aaron Sauer, Patrick Sells, Curtis Bradford
Minority And Female Participation In Construction Industry Apprenticeship Programs, Richard Bruce, Aaron Sauer, Patrick Sells, Curtis Bradford
The Professional Constructor
According to the U.S. Bureau of Labor Statistic’s Current Population Survey, nearly 90 percent of the 10.7 million people employed in the construction industry are white males (2021). This statistic will remain unchanged unless more minorities and females are recruited into the industry. For craft workers, a primary recruitment mechanism is the registered apprenticeship program. This study analyzes the U.S. Department of Labor’s Registered Apprenticeship Database (RAPIDs) from 2000 to 2019 to identify trends for new apprentices. The study found that there was no change in the proportion of new female apprentices in the previous 20 years and no change …
The Professional Constructor, Full Issue, Volume 46, Number 01
The Professional Constructor, Full Issue, Volume 46, Number 01
The Professional Constructor
No abstract provided.
How New, Innovative Technology Can Be Implemented To Combat The Construction Industry Labor Shortage, Noah David Jackson
How New, Innovative Technology Can Be Implemented To Combat The Construction Industry Labor Shortage, Noah David Jackson
The Professional Constructor
This essay addresses the construction industry’s need to compensate for the current and projected labor shortage through innovative technologies. In the first portion of this essay, three technologies that are most feasible for implementation – the Internet of Things (IoT), Drones, and Prefabrication – are detailed. The challenges faced are then discussed before the second major portion in which steps for implementation are outlined. These steps include forming partnerships, learning the process, communicating, training, implementing, and adapting and improving. The essay concludes with a discussion of how the AGC organization, and members within, can aid the industry in meeting this …
The Adaptative Construction Industry, Rhett Cox
The Adaptative Construction Industry, Rhett Cox
The Professional Constructor
The construction industry is an industry that always unites to find ways to solve problems. It is very complex and requires considerable organization, hard work, specific skills, and a whole lot of determination. In this paper, I will discuss three ways that the industry is making strides to make construction better and more efficient: (a) increased use of modular construction and prefabrication, (b) use of drones, and (c) Building Information Modeling (BIM) use. With the construction process becoming more and more complex, improving efficiency and safety has gained more attraction, especially when coping with fundamental issues such as labor shortage, …
How New, Innovative Technology And Project Execution Tools And Techniques Can Be Used To Improve The Construction Process (Including Safety And Efficiency), James L. Craig
The Professional Constructor
Humanity has often sought to utilize tools and technology to make working faster, more efficient, more comfortable, and more accurate. While humans may have started with stone tools, we have since developed complex and sophisticated mechanical and digital technologies. The construction industry has been utilizing construction technology and equipment for these same reasons for generations. While other industries have embraced the use of smart, autonomous technology and robotics, the construction industry has steadily fallen behind in this effort. In this paper, I will discuss current work using these tools and possible applications for future development.
The Impact Of Climate Change On Building Energy Demands And Mitigation Measures In Florida, Aiyin (Erin) Jiang
The Impact Of Climate Change On Building Energy Demands And Mitigation Measures In Florida, Aiyin (Erin) Jiang
The Professional Constructor
Tropical and subtropical parts of the world are projected to be the most vulnerable to the impact of climate change on building energy consumption demand. Few studies, however, focus on all four greenhouse emission scenarios defined by International Panel of Climate Change, which would be useful in assessing the energy demand challenges areas such as Florida. This study applies the most recognized climate change model downscaling approach, the morphing method, to investigate the impact of climate change on the commonly used commercial buildings in Florida’s climate zones under all four emission scenarios. It also analyzes the efficacy of various mitigation …
Frequency And Magnitude Of Cost Growth In Public Works Contracts, George Fulton, Panagiotis Mitropoulos
Frequency And Magnitude Of Cost Growth In Public Works Contracts, George Fulton, Panagiotis Mitropoulos
The Professional Constructor
Cost overruns are a persistent issue in the construction industry. This paper investigates factors that may drive cost growth on public works contracts. The study collected data on 1,043 public works projects completed over a three year period. The analysis examined the impact of four factors on cost overruns: (1) Project type, (2) Contract size, (3) Contract duration, and (4) Construction placement (value per day). The data were analyzed using a combination of basic descriptive statistics along with statistical hypothesis testing of means for various factors affecting cost growth. Cost growth was found to vary significantly by project type, contract …
Case Study Of Real-World Emissions Rates Verus Epaemission Standards For Motor Graders, Boshra Karimi, Phil Lewis
Case Study Of Real-World Emissions Rates Verus Epaemission Standards For Motor Graders, Boshra Karimi, Phil Lewis
The Professional Constructor
Using the Volkswagen emissions scandal as motivation, the purpose of this case study was to investigate whether or not heavy-duty diesel construction equipment exceeds EPA emissions standards for nonroad diesel engines. The equipment analyzed included four separate motor graders with EPA emissions standards Tier 0, Tier 1, Tier 2, and Tier 3 engines. The analysis was based on a dataset of real-world emissions rates collected from in-use equipment on actual jobsites. The results showed that mass per time emissions rates for hydrocarbons, carbon monoxide, nitrogen oxides, and particulate matter decreased as the EPA emissions standards became more stringent. Furthermore, there …
Understanding Sub-Contractor Selection Factors In Thebuilding Construction Industry For The Southeastern United States, Dhaval Gajjar, Cayla Anderson
Understanding Sub-Contractor Selection Factors In Thebuilding Construction Industry For The Southeastern United States, Dhaval Gajjar, Cayla Anderson
The Professional Constructor
The primary entities within building construction industry consists of the owner, the architect / engineer, and the general contractor, that ensure the success of any construction project. On a traditional project, the owner selects and contracts with the general contractor to construct a building designed by the architect. A considerable amount of research has been conducted to understand the owner’s selection factors to hire a qualified general contractor. However, the general contractor selected for the project seldom self-performs the entire construction of a building. The general contractor might self-perform some aspects of the actual building construction, but they will typically …
The Professional Constructor, Full Issue, Volume 45, Number 02
The Professional Constructor, Full Issue, Volume 45, Number 02
The Professional Constructor
No abstract provided.
Identifying Challenges To Project Outcomes From A Transportation Project Owner Perspective, Evan D. Bingham, Clifton B. Farnsworth, Rebecca O. Warr, James P. Smith
Identifying Challenges To Project Outcomes From A Transportation Project Owner Perspective, Evan D. Bingham, Clifton B. Farnsworth, Rebecca O. Warr, James P. Smith
The Professional Constructor
Transportation project owners are often concerned with the risks associated with construction, because these challenges can directly affect project outcomes and often lead to increased time and cost for projects. It is, therefore, vital to identify challenges early within the project life cycle. Transportation project delivery has evolved to strengthen the influence that the owner has upon the project, transitioning away from the exclusive use of traditional Design-Bid-Build to the more innovative and involved approaches of Design-Build and Construction Manager / General Contractor. Unfortunately, this has resulted in increased owner risk. In this research, transportation project owners were asked to …