Engineering Commons^™

Case Study On 3d Printing Implementation Strategies, William J. Leonard

Construction Management

The construction industry is one of the slowest to adapt and utilize new technologies. As a result, the construction industry has remained stagnant while almost all others are improving efficiency. It is becoming incredibly important for the construction industry to adapt to new technologies in order to counter the current worldwide shortage in skilled labor. 3D printing is one of the most advanced technologies that can help increase efficiency and reduce cost across all sectors of the construction industry. This paper will analyze implementation strategies used on three different construction projects using 3D printing and will evaluate what made them …

Application Of Mechanical, Electrical, And Plumbing Contractor’S Bim Practices To The Cal Poly San Luis Obispo Construction Management Program, Christopher J. Langstaff

Construction Management

Mechanical, Electrical, and Plumbing (MEP) contractors play such a crucial role in the construction and design phase of building a project; their success or failure can drastically affect the project's overall success. MEP contractors’ use of Building Information Modeling (BIM) in the construction industry has grown exponentially over the past decade. This paper will expand on the utilization and practices of BIM by MEP contractors. This information functions as a foundation for my research into current professional BIM trends as they relate to Cal Poly San Luis Obispo’s (SLO) Construction Management (CM) curriculum. Cal Poly SLO’s CM department has designed …

Spanish Language Topics Course Curriculum Proposal, George W. Healy

Construction Management

The objective of this report is to initiate the development of an introductory Spanish topics course within the construction management curriculum at Cal Poly. With each construction management student at Cal Poly that graduates, the industry is gifted another future industry expert. However, in order to be truly successful in construction,one must be excellent at communicating with, and coordinating team’s activities. There is no question that workers in the construction industry are subject to life threatening hazards on a regular basis. In order to mitigate the potential harm of these hazards, allsteps must be taken in managing these risks. Faults …

Journeyman International - Dream Soccer Academy Cameroon, Gerhard Hohbach

Construction Management

This project based senior project was completed through Journeyman International, an organization that pairs Architecture, Architectural Engineering and Construction Management students with projects in need of their services. This document contains the Construction Management students portion of the work. The DREAM Soccer Academy is a group of coaches and mentors that counsels and guides youth in Mamfe, Cameroon, empowering the youth through soccer. The organization is seeking to expand their operations to a housing, education and sports facility soccer. The proposed design includes two dormitories, three soccer fields, six classrooms, conference rooms, an indoor gym, cafeteria, health center, cafeteria, bleachers …

3d Printing Homes Impact On The Residential Construction Industry, Jeffrey Hammond

Construction Management

Construction companies are always looking for ways to reduce costs and shorten schedules and with new technologies there are more and more ways of achieving these goals. One new technology aimed to achieve those goals within the residential construction management industry is the three dimensional (3D) printer. Recently 3D printers have been put to use within the residential construction industry by printing the structures of homes, instead of framing them, at fractions of the cost and time, with greater efficiency, and less labor. 3D printed homes have a tremendous potential to impact impoverished citizens that need the peace and comfort …

Discovering The Benefits Of Integrating Bim Workflows Into Residential Construction Estimating, Trey R. Garcia

Construction Management

As Building Information Modeling tools become increasingly more prevalent within the construction industry, primarily the commercial sector, it is important to recognize how it can impact and/or improve other sectors of the industry. This paper will focus primarily on residential construction and the potential cost benefits that could be achieved with the implementation of model-based estimating. Other benefits that the commercial sector currently thrive on will also be noted and explained for potential implementation for residential construction. The project explained in this paper has a dual purpose; which is to discover if both cost and time benefits can be developed …

The Setty Family Foundation 2018 Ashrae Applied Engineering Competition, Joshua Heath

Construction Management

The Setty Family Applied Engineering Challenge tasked my project group with designing a temporary shelter specifically for refugees in Eastern Europe to be used by governments, municipalities, and humanitarian agencies that is cost effective, portable, sustainable, and provides all necessary domestic needs. After months of research and design, we have developed the PolyShelter ; an eight-person structure erected to provide comfortability and safety to those in need. PolyShelter is designed to withstand the harshest of climates, provide exceptional insulation, and incorporate a rainwater collection system sufficient enough to support each unit. PolyShelter proves itself to be an economically viable solution …

Alternate Reinforcement For Structural Concrete, Barrett Lowe

Construction Management

Concrete has been utilized on construction projects for thousands of years, ranging from the Pyramids to the foundation your home is built on. Innovated upon, concrete and its properties have changed over the years, one of the greatest being the discovery of tensile reinforcement. Rebar, commonly known as reinforcing steel or reinforcement bars, have been used in the construction industry for decades. Ranging in size and application, rebar’s unmatched tensile strength and anti-corrosive properties make it the champion of reinforcing structural concrete. Though the advancement in technology has created a new era where other materials may take its place. Attempting …

Rail Transportation Of Aggregate Material, Mario Ghilotti

Construction Management

Sand, gravel and crushed stone, known as construction aggregates, are the main ingredient in materials to maintaining and building new infrastructure. Construction aggregate has a low cost per ton, but because mass quantities are typically required, if a local source is not available then the cost of transportation quickly exceed the value of the material. The North Bay Area has an estimated 50-year demand of 521 Million Tons (MT) and a current permitted supply of 110 MT. This North Bay Area region has a supply to demand ratio of 21% and is estimated to last 11-20 years (from 2012). This …

High School Student Perceptions Of Women In Construction And How Increasing Awareness Changes Perceptions, Garber Ashley, Kaelyn Mollé

Construction Management

Diversity is a one of the biggest struggles within the construction industry. Specifically regarding gender, women make up a distinct minority of just over 8% for construction managers according to the U.S. Bureau of Labor Statistics. In comparison, women comprise 47% of the overall U.S. labor force. This shows that the construction industry is behind because of certain barriers including perception of women’s capabilities, socio-cultural issues, male dominance and more.This paper researches high school students’ perceptions of women in construction as well as their prior knowledge and beliefs about construction management. This research also includes a brief presentation on what …

Augmented Reality Applied To Tenant Improvement Projects, Alex Feizbakhsh

Construction Management

Technology keeps on advancing and expanding into different markets, the Construction Industry has adapted these new breakthroughs. The industry has already adapted the concept of 3D Modeling, however with Augmented Reality this takes BIM to the next level. Augmented Reality can assist in numerous attributes within the construction process to help manage the project more efficiently. Given these words, this paper helps to highlight the key factors of Augmented Reality and how it enhances the Tenant Improvement process. This case study helps to highlight the positive returns of this tech, as well as solutions for any challenges that may come …

Developing A Scheduling Module For Construction Management Labs, Brittney Lerdahl

Construction Management

The Cal Poly Construction Management Department is renowned as one of the best programs in the nation. From holding one of the highest competition success rates to almost 100% job placement right out of school for graduates, Cal Poly undoubtedly lives up to that reputation. With that, in order to ensure that the department continues to produce well rounded graduates, it is crucial to regularly assess any potential shortcomings that the construction management curriculum may possess. As one of the three sides of the construction management triangle, the ability to read and create a construction schedule is a crucial skill …

Construction Industry Today, Brooke Deporto

Construction Management

This project assesses career opportunities, typical career paths, educational levels, gender demographics, and salary range within today’s construction industry with information collected from surveyed industry professionals. This report focuses on specific information extracted from this survey, including gender, work location, starting and current salary, years of experience, education level, and overall happiness in their career choice. The survey and its results will serve to establish a broad outline of the current state of professionals in the workforce. This information will provide a baseline data for future studies to analyze trends over time as well as provide current students additional insight …

Case Study: Expectation And Perspective In The Punch List Process, Carlye L. Cunningham

Construction Management

The punch list process is a crucial phase of construction that is performed on every project. The punch list is a document generated near the end of the project that includes unfinished items and/or work that is not conforming to specifications or expectations. It requires immense coordination and communication between the owner, general contractor, and subcontractors in order for it to be executed efficiently. How the punch list is performed can be very instrumental or detrimental as all parties work together to close out the project. This paper will examine the punch list procedures that took place during the closeout …

Legal Issues And Feasibility Of Construction Under Railroad Tracks At Cedar Creek Apartments, Brendan Donovan

Construction Management

This paper describes the impediments of initiating construction of a local tunnel underneath the railroad tracks approximately 50 yards South-West of the Foothill Blvd and California Blvd intersection. This tunnel is used by hundreds of students every day and acts as the primary route for these students to get to and from the Cal Poly campus. This tunnel has no lighting, is constantly flooded with water, and has multiple safety hazards. The author discusses the feasibility of starting construction to make this pathway a safe accessible route for all students. Throughout the paper, the author introduces the multiple parties with …

Community Service Project For Senior Citizen, Adam J. Bloomer

Construction Management

This community service project for a local senior citizen consisted of a complete construction package including: obtaining funding, purchasing necessary materials, schedule planning, design, development and construction of a mid-sized concrete staircase. Using the knowledge and prior practices I acquired while studying Construction Management at California Polytechnic University San Luis Obispo I was able to fulfill every aspect the client had requested. This staircase not only served as an easier walkway into the backyard of the home but also as a stormwater accessway allowing for minimal puddle and mud accumulation outside the clients front door. The projects material cost of …

Case Study: Proven Benefits Of Insurance Backed Stretch And Flex Programs With Cdm Smith, Colin Dzubnar

Construction Management

Safety is the most important aspect of the construction industry. Due to daily strenuous physical activities that occur on a construction jobsite, having your body warmed up, pain-free and ready to perform labor intensive tasks is critical. This case study will examine the correlation between the past and present daily stretching format at the construction jobsite with CDM Smith and Insurance Company. For continuity, it will include an interview with the same CDM Smith Region H&S Manager as well as similar surveys to find out the construction workers thoughts and reactions to stretching prior to work. Although IO to 20 …

A Case Study Of The Construction Labor Market And Impact Of Retiring Baby Boom Generation, Grant Bettisworth

Construction Management

Construction firms often analyze the impacts of schedule, cost, and quality when reviewing the risk associated with a project. An important aspect of the project execution effort; available skilled labor resources, can have a significant impact on the success of the project but may not always be considered as part of the risk analysis effort. The intent of this paper is to discuss the contribution of the baby boom generation, how the retirement of baby boomers will impact the labor market, what this means for the construction industry and how construction firms can mitigate risks associated with this phenomenon. Since …

Case Study: Analyzing The Benefits Of Using 3d Printing On The Mexican Museum Renovation Project In San Francisco, California, Benjamin Jodis

Construction Management

The use of three-dimensional (3D) printing is not yet prevalent throughout the construction industry. Although there have been some uses, each has been small and relatively experimental, however, a current renovation project to the Mexican Museum in downtown San Francisco utilized 3D printing to aid in design coordination. The decision came after the General Contractor, Webcor Builders, noticed a possible constraint in pouring a section of the foundation; a pair of nine-foot vertical concrete walls surrounding the elevator shaft. The walls posed a serious threat to the schedule and budget of the project, raising concerns with shoring, waterproofing, and constructability. …

Ferroresonance In The High Voltage Powerline Industry, Joe Granger

Construction Management

Ferroresonance is an issue often overlooked in the high voltage powerline industry. Ferroresonance is a complex nonlinear electrical phenomenon that can cause dielectric and thermal problems to transformers. It is a very complex topic that is not completely understood and requires a large amount of work in order to comprehend. It can cause injury to Lineman that work around it and damage equipment. The proper training and a safety device could make the industry safer and save money. Through interviews and research I have studied the need for a safety device that applies load to a transformer during installation in …

Implementation Of Industry Technology Into The Construction Management Department, Kristen D. Forster

Construction Management

With technology being one of the fastest growing items in the construction industry it is important to keep on top of what is utilized most commonly. To fully prepare graduates for the work force, the Construction Management Department at Cal Poly, San Luis Obispo needs to focus efforts on supplying students with the most commonly used industry technologies. Utilizing these programs in the current curriculum will ensure that graduates from the Construction Management Department are prepared to take on the work force with the most relevant software under their belts. Students who understand how to use these industry sanctioned technologies …

Completion Of Hope's Village Tiny Homes, Jimmy P. Fewell

Construction Management

In Fall, 2018 the Cal Poly Construction Management Department teamed up with the non-profit, Hope’s Village, to create two tiny homes that are to be used for homeless shelters. The Residential Construction class built the structures, and I finish the siding for this plan. In finishing the siding I was incharge of the designing, planning and execution of the project.

Protection, Automation, And Frequency Stability Analysis Of A Laboratory Microgrid System, Christopher Eric Osborn

Master's Theses

Due to increasing changes in the power industry, Cal Poly San Luis Obispo's electrical engineering department introduced a set of initiatives to adequately equip students with the skills and knowledge to interact with new technologies. Specifically, the department proposed a microgrid and power systems protection and automation laboratory to strengthen students' knowledge of microprocessor-based relays. This paper outlines a microgrid laboratory system that fulfills the initiative's goal and proposes a collection of laboratory experiments for inclusion in a new laboratory course at Cal Poly. The experiments provide students with practical experience using Schweitzer Engineering Laboratory (SEL) relays and teach fundamental …

Protection Against Ungrounded Single Phase Open Circuit Faults In 3-Phase Distribution Transformers, Higinio Ariel Montoya

Master's Theses

This thesis explores the impacts and behavior of 3-phase distribution transformers when subject to ungrounded single phase open circuit faults. A simple 3-phase system is modeled using MATLAB Simulink and operation under fault conditions are simulated and studied. Simulation results are confirmed via lab experimentation. Finally, a robust detection and protection method using neutral current injection (as proposed in industry literature) is built and demonstrated.

Electric utility operating experience has demonstrated that all too often, loads on 3-phase distribution transformers are not adequately protected against an ungrounded single phase open circuit fault (commonly called “single phasing”). This type of fault …

Knee Angles And Axes Crosstalk Correction In Gait, Cycling, And Elliptical Training Exercises, Jordan M. Skaro

Master's Theses

When conducting motion analysis using 3-dimensional motion capture technology, errors in marker placement on the knee results in a widely observed phenomenon known as “crosstalk” [1-18] in calculated knee joint angles (i.e., flexion-extension (FE), adduction-abduction (AA), internal-external rotation (IE)). Principal Component Analysis (PCA) has recently been proposed as a post hoc method to reduce crosstalk errors and operates by minimizing the correlation between the knee angles [1, 2]. However, recent studies that have used PCA have neither considered exercises, such as cycling (C) and elliptical training (E), other than gait (G) nor estimated the corrected knee axes following PCA correction. …

Spanish Language Topics Course With An Emphasis On Construction Safety, Austin Changras

Construction Management

The end goal of this research-based project is to evaluate whether a Spanish course with an emphasis on construction site safety would be beneficial to Cal Poly’s Construction Management (CM) program and how it might also benefit the industry. The research orchestrated will be to decipher whether or not there is even a need for this type of class to be included into the curriculum. Along with data research, two separate surveys have been conducted, one administered to the Construction Management student population and the other to industry professionals. Furthermore, George Healy, a fellow CM student, is working on the …

Implementing Bim Management And Process Optimization Tools In Construction Management Curriculum, Jake W. Castillo

Construction Management

As the construction industry rapidly continues to adopt technology and Building Information Modeling practices, we need to ensure that Construction Management curriculum prepares students for what is expected after graduation. Cal Poly’s Construction Management program currently have two Building Information Modeling courses in the curriculum that focus mainly on learning software and while this will be essential for students graduating the Construction Management program, there remains room to improve the courses as the industry adapts. Adding curriculum geared more toward managing the BIM process and learning process optimization skills will not only benefit a higher percentage of students, but will …

Effects Of Game Pitch Count And Body Mass Index On Pitching Biomechanics In 9-To 10-Year-Old Baseball Athletes, Jim D. Darke, Eshan M. Dandekar, Arnel L. Aguinaldo, Scott J. Hazelwood, Stephen M. Klisch

Biomedical Engineering

Background: Pitching while fatigued and body composition may increase the injury risk in youth and adult pitchers. However, the relationships between game pitch count, biomechanics, and body composition have not been reported for a study group restricted to 9-to 10-year-old athletes.

Hypothesis: During a simulated game with 9-to 10-year-old athletes, (1) participants will experience biomechanical signs of fatigue, and (2) shoulder and elbow kinetics will correlate with body mass index (BMI).

Study Design: Descriptive laboratory study. Methods: Thirteen 9-to 10-year-old youth baseball players pitched a simulated game (75 pitches). Range of motion and muscular output tests were conducted before and …

Effects Of Game Pitch Count And Body Mass Index On Pitching Biomechanics In 9- To 10-Year-Old Baseball Athletes, Scott Hazelwood, Jim D. Darke, Eshan M. Dandekar, Arnel L. Aguinaldo, Stephen M. Klisch

Biomedical Engineering

Background:

Pitching while fatigued and body composition may increase the injury risk in youth and adult pitchers. However, the relationships between game pitch count, biomechanics, and body composition have not been reported for a study group restricted to 9- to 10-year-old athletes.

Hypothesis:

During a simulated game with 9- to 10-year-old athletes, (1) participants will experience biomechanical signs of fatigue, and (2) shoulder and elbow kinetics will correlate with body mass index (BMI).

Study Design:

Descriptive laboratory study.

Methods:

Thirteen 9- to 10-year-old youth baseball players pitched a simulated game (75 pitches). Range of motion and …

Rotordynamic Analysis Of Theoretical Models And Experimental Systems, Cameron R. Naugle

Master's Theses

This thesis is intended to provide fundamental information for the construction and

analysis of rotordynamic theoretical models, and their comparison the experimental

systems. Finite Element Method (FEM) is used to construct models using Timoshenko

beam elements with viscous and hysteretic internal damping. Eigenvalues

and eigenvectors of state space equations are used to perform stability analysis, produce

critical speed maps, and visualize mode shapes. Frequency domain analysis

of theoretical models is used to provide Bode diagrams and in experimental data

full spectrum cascade plots. Experimental and theoretical model analyses are used

to optimize the control algorithm for an Active Magnetic Bearing …