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2021

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Articles 181 - 210 of 271

Full-Text Articles in Construction Engineering and Management

Los Angeles Homeless Epidemic - An Analysis Of Proposition Hhh, Howard T. Duong Mar 2021

Los Angeles Homeless Epidemic - An Analysis Of Proposition Hhh, Howard T. Duong

Construction Management

Passed in 2016, Proposition HHH is a $1.2 billion bill hoping to curb the homelessness epidemic that is rising in the city of Los Angeles with the newly added construction of 10,000 supportive housing units. This study serves to analyze and detail the homelessness epidemic in the Los Angeles Area, familiarizes the reader with how Proposition HHH funding works together with developers, as well as some of its shortcomings to date so far. To garner additional research, a survey was performed with a sample size from both the developers engaged with Proposition HHH and residents of the product in order …

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Risk Management In Response To Covid-19: Comparative Case Study, Justin Hong Mar 2021

Risk Management In Response To Covid-19: Comparative Case Study, Justin Hong

Construction Management

The COVID-19 pandemic has affected many aspects of the construction industry. Construction industry members such as owners, developers, subcontractors have experienced varying degrees of impacts because of COVID-19. It is important for companies to adopt risk management strategies to mitigate risk and reduce potential injuries. Due to new rules and regulations mandated by the government, companies had to change the way they operate. This comparative case study focuses on how the pandemic has affected large and small residential companies and compare the risk management strategies set in place by different companies. It was determined that most residential companies were not …

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Field Welding Repair Of Heavy Equipment, Phil Akahori Mar 2021

Field Welding Repair Of Heavy Equipment, Phil Akahori

Construction Management

Welding repairs of heavy equipment in the field can vary in levels of success. This can be due to the high strength steels used in the manufacture of heavy equipment implements that require special metallurgical considerations. Repair difficulties can be further compounded by the limitations of tooling typically found on a construction site and schedule commitments. Overloading or excessive impacts can cause damage to the bucket teeth of an excavator or bulldozer rippers. A shop could perform a proper repair but that increases cost and takes precious time. A successful repair of these items done out in the field can …

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Indispensable Homes In Third World Countries: Constructing A Home In Tijuana, Mexico, Myles Hubers Mar 2021

Indispensable Homes In Third World Countries: Constructing A Home In Tijuana, Mexico, Myles Hubers

Construction Management

This project was created to explore a way in which poverty around the world could ultimately be reduced. The way in which this project intends to demonstrate a method used to reduce poverty is by building a home for a specific family in Tijuana, Mexico. In doing so, this home will act as a model home for a manual, comprised of steps that should be taken to construct similar homes throughout any third world country. The goal of this project is to highlight the importance of poverty in the world while also creating a buildable solution in order to reduce …

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Common Issues Of Compliance With Personal Protective Equipment For Construction Workers, Alexandra N. Gattuso Mar 2021

Common Issues Of Compliance With Personal Protective Equipment For Construction Workers, Alexandra N. Gattuso

Construction Management

Personal Protective Equipment (PPE) is an essential component to the safety of workers on construction jobsites. Construction is ranked one of the most dangerous industries to work in, with the highest reports of fatal work injuries. For this reason, it is required that construction employees wear PPE to keep them safe during work. Despite this requirement, many workers neglect to wear PPE, exposing themselves to high risk of injury and death. A survey was conducted on thirty-three (33) construction workers in California to gain a better understanding of issues with PPE and reasons for non-compliance. The survey found that only …

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Subcontractor Claim Management And Dispute Resolution Methods In The State Of California Versus The Province Of British Columbia: A Case Study, Harrison A D Grant Mar 2021

Subcontractor Claim Management And Dispute Resolution Methods In The State Of California Versus The Province Of British Columbia: A Case Study, Harrison A D Grant

Construction Management

In the construction industry, discordance between what is expected versus what is delivered often arises. This disparity is commonly handled using informal negotiation. However, if negotiations fail, then claims and disputes often emerge. Issues involving scope of work, change orders, schedule, and payment can lead to conflicts. Companies try to employ the best alternative dispute resolution method to settle subcontractor claims and disputes without the need for litigation. Speaking with construction professionals in California and British Columbia, a difference in opinion exists as to which method is considered most effective when dealing with subcontractor claims and disputes. In California, the …

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The Effects Of Waste Marble Powder On Sustainable Concrete, Jeremy S. Tennesen Mar 2021

The Effects Of Waste Marble Powder On Sustainable Concrete, Jeremy S. Tennesen

Construction Management

Sustainability has been growing consistently more popular in construction, with projects introducing innovative ideas to build greener every year. One material that has not experienced many innovations since emerging in building use is concrete. The reason behind this could be the chemical process of curing concrete being unique compared to most materials. While concrete can be broken down into some of its original components, water, cement, and admixtures used are not retainable. This makes it difficult to recycle the material, and the aggregates recovered from recycling also experience a loss in strength. With admixtures being involved in most concrete mixes …

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Net-Zero Homes, The Homes Of The Future, Primo Guseppi Facchini Mar 2021

Net-Zero Homes, The Homes Of The Future, Primo Guseppi Facchini

Construction Management

Net-Zero homes are the homes of the future (Holmes, 2018). What makes Net-zero homes unique is they rely on solar power, opposed to all standard housing that relies on the power grid. These homes use solar instead of other forms of energy generating technology because it is more affordable and better for the environment. California has blazed the trail for the rest of the United States and the world to follow with their Net-Zero housing proposition. Starting January 2020 California will require all residential buildings to be net-zero homes. Net-Zero homes are important because it is no secret that our …

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Wood Post And Non-Climb Fencing Construction For Hoofstock Pasture, Jessica Miller Mar 2021

Wood Post And Non-Climb Fencing Construction For Hoofstock Pasture, Jessica Miller

Construction Management

This paper covers the planning, site clearing and construction of a new 7,100 square foot hoofstock pasture for the nonprofit group Conservation Ambassadors at their Northern campus in Weimar, California. The project involved planning the layout of the new pasture based on the owner’s preferences for pasture size, material type and location as well as removing several old pre-existing posts to prepare for the new fence to be built. New two-foot deep post holes were dug and the four-inch diameter, eight-foot long wood posts were leveled and set in concrete. Horizontal H-braces and cross brace tension wire were added to …

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Sustainable Bus Stop: Design & Pre-Construction, Nadov O. Rader Mar 2021

Sustainable Bus Stop: Design & Pre-Construction, Nadov O. Rader

Construction Management

The objective of this project is to design and prepare to build a sustainable bus stop for the City of San Luis Obispo (SLO). Compiled are pre-construction plans and documents for delivery of a sustainable bus stop. All pre-construction services include: project budget/estimates, construction plans and specifications including architectural and electrical plans, timeline/schedule, and materials lists. With a strong focus on sustainability, the design incorporates the use of photovoltaic panels as a form of renewable energy to power features of the sheltered bus stop. This includes a light fixture and a pump to use collected rainwater to nourish native vegetation …

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Schedule Efficiency Associated With The Tilt-Up Construction Method: A Case Study, Jake A. Barron Mar 2021

Schedule Efficiency Associated With The Tilt-Up Construction Method: A Case Study, Jake A. Barron

Construction Management

Tilt-up is an efficient method of project delivery that is best suited for large, flat projects such as commercial warehouses and distribution centers. The hypothesis is that this method of casting wall panels on site, and then tilting them upright, allows for certain unique activity sequences which could provide faster project completion. In order to prove this theory, analysis of two tilt-up projects completed within a mile of each other by the same contractor, and assessment of their schedules, will provide insight into the specific tasks that allow for better delivery speed. This methodology paired with interviews of team members, …

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Industry Perceptions On Public Sector Construction Delivery Methods, Evan Mccollough Mar 2021

Industry Perceptions On Public Sector Construction Delivery Methods, Evan Mccollough

Construction Management

The public construction sector in the United States has predominantly used the traditional delivery method, also known as design-bid-build, to obtain and deliver projects. Accurately assessing the direction of the public construction sector must include analysis of the emergence of Public-Private Partnerships (P3) and alternative delivery methods. P3 projects in the United States are relatively new, an emerging trend from the late 2000s as an innovative way to utilize private capital to finance public projects, beyond a typical bond sale. Alternative delivery methods refer to any project award or management arrangement other than the typical design-bid-build, lump sum, competitive bidding …

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Paso Robles Police Department Outdoor Training Facility Improvements - Phase 1, Zachary T. Stellini Mar 2021

Paso Robles Police Department Outdoor Training Facility Improvements - Phase 1, Zachary T. Stellini

Construction Management

This paper outlines the pre-construction and construction of the 24,300 square foot Paso Robles Police Department outdoor training facility improvements. The project focuses 12,000 square feet of the total site with improvements that include earthwork and new concrete flatwork. This project is group project with Gavin Abraham and Nic Petri that is broken up into 3 phases, this paper will primarily focus on the phase 1 which includes grading and excavation. The purpose of this project was to provide the Paso Robles Police Department with a modern, functional facility that allows its officers to be better equipped to protect the …

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Possible Use For Recycled Disposable Face Masks In Concrete, Lauren Douglas Mar 2021

Possible Use For Recycled Disposable Face Masks In Concrete, Lauren Douglas

Construction Management

Disposable face masks are one of many single use products that are detrimental to the environment. The construction industry has been introducing new ways to incorporate recycled products into their materials. This paper addresses one possible way to use more environmentally friendly materials in the construction industry. 16 concrete cylinders were prepared using 4x8 forms. The mix was manipulated to test the impact of incorporating varying levels of disposable shredded face masks. Compressive strength and workability were measured in these cylinders. Eight cylinders were prepared for the control batch. Four cylinders were prepared using 10 oz. of shredded face masks …

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A Case Study On The Capacity And Competitiveness Of Small-Sized Contractors On The Central Coast Of California, Lev S. Garcia Mar 2021

A Case Study On The Capacity And Competitiveness Of Small-Sized Contractors On The Central Coast Of California, Lev S. Garcia

Construction Management

The market conditions in which small-sized construction firms in California compete can be significantly influenced by the regional location of their projects. This research paper reviews a qualitative case study executed through semi-structured interviews with two construction firms on the Central Coast of California. Through gaining the perspectives of two companies, one that recently grew into a medium sized company and one that is small-sized, this case study aims to identify market characteristics that influence small-sized companies’ abilities to compete on the Central Coast. The case study indicates that competition between existing companies, the threat of new arrivals, the cost …

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Residential Bathroom And Tile Shower Addition During Covid-19 Quarantine, Joseph Szillinsky Mar 2021

Residential Bathroom And Tile Shower Addition During Covid-19 Quarantine, Joseph Szillinsky

Construction Management

This paper outlines the design and construction of a new code compliant bathroom including: a low profile shower pan, ceramic-tile shower enclosure, and new plumbing piping and fixtures. One of the main objectives was to complete the new shower which would be easily accessible and maintenance free in order to support a local elderly couple. The selection of this project took place during the COVID-19 pandemic approximately nine months after California issued the first mandatory statewide Stay-at-Home Order. During the early design and development stages an opportunity to collaborate with a local trades-person was identified as well as the need …

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Comparing The Environmental Impacts Of Using Mass Timber And Structural Steel, Khang Hoang Nguyen, Steelee Knight Morgan Mar 2021

Comparing The Environmental Impacts Of Using Mass Timber And Structural Steel, Khang Hoang Nguyen, Steelee Knight Morgan

Construction Management

Although mass timber has seen a gradual rise in demand in the past, there has been a lack of extensive research on the environmental impacts of using mass timber as a primary structural framing material. This paper compares structural steel, and mass timber’s total embodied carbon emissions. Accurate estimates were made using plans and specs for different projects retrieved from semi-structured interviews. The estimates were input through the EC3 Calculator to provide extensive total carbon emissions measurements between each construction material. Using structural steel framing increased the project’s overall environmental impact by roughly 84% compared to using mass timber. The …

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Developing Infrastructure Adaptation Pathways To Combat Hurricane Intensification: A Coupled Storm Simulation And Economic Modeling Framework For Coastal Installations, Alexander J. Baldwin Mar 2021

Developing Infrastructure Adaptation Pathways To Combat Hurricane Intensification: A Coupled Storm Simulation And Economic Modeling Framework For Coastal Installations, Alexander J. Baldwin

Theses and Dissertations

Climate change projections suggest intensification of extreme weather events, including hurricanes, is expected throughout the 21st century. This will lead to increased destruction for coastal military bases unless infrastructure resiliency and adaptation measures are implemented. This research focuses on examining the simulation of probabilistic, climate-intensified hurricane events at Eglin Air Force Base. FEMA Hazus models are combined with climate projections for wind Intensity, tide, and sea-level rise to produce an assessment of losses to the installation. Damage estimates and hurricane intensity outputs are downscaled to the facility-level so that climate adaptation signals can be identified. The facility losses and climate …

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Bs News March/April Mar 2021

Bs News March/April

Building Services Engineering

No abstract provided.

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Initial Assessment Of Liquefied Scrap Tire Concrete, Abdulkareem Kuaryouti, Christopher D. Eamon Feb 2021

Initial Assessment Of Liquefied Scrap Tire Concrete, Abdulkareem Kuaryouti, Christopher D. Eamon

Civil and Environmental Engineering Faculty Research Publications

A new approach to incorporate scrap tire material into concrete was investigated, where two reclaimed waste tire components, carbon black and fuel oil, were used to replace a portion of water. The effect of “liquid tire” content to water ratios from 5-40% on an otherwise typical concrete mix were assessed, where compressive and flexural strength, flexural toughness, modulus of elasticity, and several fresh concrete properties were determined. Results were compared to typically expected results of traditional shredded tire mixes with equivalent tire content. It was found that the liquid tire mixes experienced significantly less losses of compressive strength and workability …

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Quantifying Materials Waste In The Egyptian Construction Industry: A Critical Analysis Of Rates And Factors, Ayman Ahmed Ezzat Othman, Ahmed Osama Daoud Dr., Obas John Ebohon, Ali Bayyati Feb 2021

Quantifying Materials Waste In The Egyptian Construction Industry: A Critical Analysis Of Rates And Factors, Ayman Ahmed Ezzat Othman, Ahmed Osama Daoud Dr., Obas John Ebohon, Ali Bayyati

Architectural Engineering

Construction and demolition waste (CDW) is a critical challenge facing the construction industry. It leads to deterioration of the triple bottom line of sustainability. Unfortunately, the CDW management research in Egypt lacks studies investigating (1) the variations in CDW generation (CDWG) among different types of construction projects, and (2) the factors affecting CDW reduction (CDWR). Based on a benchmarking approach, this research (1) quantifies CDW in terms of generation rates and costs among different construction project types in Egypt, and (2) investigates the relationship between CDWG and different adopted CDWR factors. Using structured interviews, a comparative case study was conducted …

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Multi-Skilled Labor Optimization With Partial Allocation Of Resources, Amira Saleh Jan 2021

Multi-Skilled Labor Optimization With Partial Allocation Of Resources, Amira Saleh

Theses and Dissertations

The current practice of labor allocation in construction schedules assumes single-skilled workforce; meaning that each worker is assumed to be skilled in only one trade. In such practice, at any instance in the project lifecycle, some of the workforce become idle waiting for other labor types to complete their work. Traditionally, companies may relocate idle workers to other projects and return them back to their original project when needed again. This complicates the resource management process and is not often performed successfully, leading to schedule and cost overruns. Alternatively, project managers may keep the idle workforce at their projects because …

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A Web-Based Change Control Management Toolkit For Lump-Sum Turnkey Contractors: Transformation To Third Generation, Ahmed Omran Jan 2021

A Web-Based Change Control Management Toolkit For Lump-Sum Turnkey Contractors: Transformation To Third Generation, Ahmed Omran

Theses and Dissertations

Project deviations and changes are one of the key common particulars encountered in the Construction industry. Project changes can occur in different forms, may impact different pillars of the project, and can be caused due to the existence of various underlying factors. Mismanaging or lack of controlling these changes is one of the key contributing factors leading to project hardships. Contractors incur profit erosion, scope creep, and time slippages mainly by failing to have an effective project change management system enforced within its project execution philosophy. Such adversity is amplified for contractors engaging in lump-sum turnkey “LSTK” projects. Contractors encounter …

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Wearable Sensing Devices: Towards The Development Of A Personalized System For Construction Safety And Health Risk Mitigation, Chukwuma Nnaji, Ibukun Awolusi, Jeewoong Park, Alex Albert Jan 2021

Wearable Sensing Devices: Towards The Development Of A Personalized System For Construction Safety And Health Risk Mitigation, Chukwuma Nnaji, Ibukun Awolusi, Jeewoong Park, Alex Albert

Civil and Environmental Engineering and Construction Faculty Research

Wearable sensing devices (WSDs) are increasingly helping workers stay safe and healthy in several industries. However, workers, especially in the construction industry, have shown some aversion towards the use of WSDs due to their ability to capture specific information that may be considered personal and private. However, this revered information may provide some critical insight needed by management to plan and optimize worksite safety and support technology adoption in decision making. Therefore, there is a need to develop personalized WSD systems that are mutually beneficial to workers and management to ensure successful WSD integration. The present study aims to contribute …

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Using System Dynamics To Study The Effect Of Change Orders On Labor Productivity, Shrouk Gharib Jan 2021

Using System Dynamics To Study The Effect Of Change Orders On Labor Productivity, Shrouk Gharib

Theses and Dissertations

Change orders in construction projects lead to numerous negative impacts, including loss of labor productivity, delays, and cost overruns. Owners and contractors are usually in disagreement when it comes to allocating the extent of responsibilities with respect to the resulting overruns. Each party tries to hold the other party fully responsible for such overruns through a series of claims and disputes. Several delay analysis techniques have been developed to aid in settling such disputes, however, they do not fully grasp the rippled impacts of change orders and do not assist parties in reaching consensus when it comes to finding the …

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A Critical Analysis Of The Application Of Augmented Reality (Ar) For Monitoring And Documentation Of Construction Site Progress In The Irish Aec Industry., Bim Tudublin, Lukasz Sarnot Jan 2021

A Critical Analysis Of The Application Of Augmented Reality (Ar) For Monitoring And Documentation Of Construction Site Progress In The Irish Aec Industry., Bim Tudublin, Lukasz Sarnot

Capstone Reports

Sarnot, L. (2021) A critical analysis of the application of augmented reality (AR) for monitoring and documentation of construction site progress in the Irish AEC industry, Capstone Project from the MSc in aBIMM

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To What Extent Can Innovative International Project Delivery Strategies (Which Leverage Bim) Improve The Cost Certainty Of Large Complex Public Procurement Projects In The Context Of Irish Public Procurement?, Bim Tudublin, Roqaya Abouklaib Jan 2021

To What Extent Can Innovative International Project Delivery Strategies (Which Leverage Bim) Improve The Cost Certainty Of Large Complex Public Procurement Projects In The Context Of Irish Public Procurement?, Bim Tudublin, Roqaya Abouklaib

Capstone Reports

Cost overrun is one of the biggest issues in the construction sector, and cost certainty is one of the main aims of the public construction sector in Ireland. Studies have shown that multi-disciplinary collaboration will benefit a construction project throughout its lifecycle. BIM, Lean, and IPD are independent methodologies that encourage collaborative work, and there are existent effective synergies among these concepts. The synergetic innovative international strategies were utilised for delivering large complex projects successfully globally, and many authors have studied large complex public projects that have adopted innovative international project delivery strategies collaboratively and have shown that the cost …

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Opportunities In The Irish Reinforced Concrete Industry For Lean And Bim Adoption, Bim Tudublin, Kieran Mcconnell Jan 2021

Opportunities In The Irish Reinforced Concrete Industry For Lean And Bim Adoption, Bim Tudublin, Kieran Mcconnell

Capstone Reports

The Irish Reinforced Concrete (RC) sector has yet to realise the full potential of Building Information Modelling (BIM) and Lean construction. The positive impacts and benefits of both BIM and Lean in the wider Architecture, Engineering and Construction sector are widely recognised; many of these are transferable to the RC sector, but there is limited research and knowledge on practical transference, uses and advantages. This research aims to fill some of the existing knowledge gaps by examining BIM and Lean adoption and awareness in the Irish RC sector across sub-sectors, professions, and organisational levels, and by exploring opportunities for increasing …

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A Critical Examination Of Visual Programming And Generative Design For The Compliance Checking Of Open Plan Office Layouts Against Hse Guidelines Post Covid-19., Bim Tudublin, Ronan Byrne Jan 2021

A Critical Examination Of Visual Programming And Generative Design For The Compliance Checking Of Open Plan Office Layouts Against Hse Guidelines Post Covid-19., Bim Tudublin, Ronan Byrne

Capstone Reports

The purpose of this study is to explore the feasibility of Visual Programming (VP) and Generative Design (GD) in assisting employers review open plan office layouts against Ireland’s HSE guidelines implemented in May 2020 in response to Covid-19. The pandemic has affected all areas of life with workplace standards requiring a complete overhaul. This study will attempt to ascertain compliance with natural ventilation and social distancing requirements through the completion of an experimental research study, utilising Computational Design (CD) tools. A GD study will be undertaken to provide the designer with numerous office layout design solutions to evaluate and evolve. …

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Should Acoustic Simulation Technology Be Utilised In Architectural Practice? Does It Have The Potential For Bim Integration?, Bim Tudublin, Keith Harvey Jan 2021

Should Acoustic Simulation Technology Be Utilised In Architectural Practice? Does It Have The Potential For Bim Integration?, Bim Tudublin, Keith Harvey

Capstone Reports

The research presented in this paper, firstly, aims to convey the importance of our acoustic environment through focusing on the effects of undesirable acoustic conditions on cognitive abilities in spaces where cognitive performance is of the utmost concern, our learning environments. Secondly, it aims to investigate current state-of-the-art acoustic simulation methods, available platforms, and their levels of interoperability with architectural BIM authoring software. Structured interviews were carried out with 7 Irish architects and architectural technologists to determine if a disconnection between architectural design and acoustic performance exists and to identify the advantages and disadvantages of current workflows for acoustic performance …

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