Construction Engineering and Management Commons^™

Creating A Pull Planning Guide For Industry Use, Michael B. Avila

Construction Management

The construction industry is quickly making Pull Planning sessions a commodity only the largest companies can afford due to expensive consultants and the common perception of a complicated process. Pull Planning does not need to be complicated but can be quickly implemented by all types of companies utilizing extensive research completed on The Last Planner System. The benefits of Pull Planning include creating buy-in to the plan, making hand-offs known, and creating reliability and trust from the key Players on a project. As the demand for a more productive construction project rises, it is increasingly important for the scheduling methods …

Documentation Of Concrete Slabs Prior To Pours, Peter D. Riley

Construction Management

Concrete slabs in multi-level commercial building projects contain many components that become no longer visible once concrete has been poured. As building designs advance and continue to locate components in concrete, it is important to document what these slabs contain in order to verify accurate craftsmanship and allow for improved future construction workflows and building modernizations. This paper explores current industry needs for proficient documentation as well as practices to achieve this. A case study was conducted, testing four devices that analyzed feasibility factors for realistic implementation by a contractor such as cost, interoperability, and level of skill required for …

Joy Playground Project, Atascadero California, Nick Vollucci

Construction Management

Parents for Joy is a group of parents and families of children with special needs in and around the small town of Atascadero, California. The group is working on designing and building a playground that accommodates the needs of their loved ones. This playground will have features that are accessible to people of all degrees of mobility and agility, and that promotes safety and inclusivity.Mission Statement: On their website, Parents for Joy provides the following mission statement: “Parents For Joy is a group of parents, families, and friends living in and around the small town of Atascadero, who have children …

Construction Management Computer Lab Redesign, Matt Williamson

Construction Management

This project looked to take an inventory of the current Construction Management computer lab, communicate with students and other stakeholders about how the computer lab is used, look ahead to how the lab will be used in the future, and create a new design that best suits the Construction Management department.

Cal Poly Engineering East – Building 20, A Critical Analysis Of Mechanical Needs And Distribution Of Mechanical Resources, Rhea Bae

Construction Management

Older buildings on the Cal Poly campus need renovation, particularly with the heating, ventilation, air-conditioning (addressed as HVAC) systems in the classrooms. The HVAC units within the old buildings are obsolete, inefficient, and are most likely due for replacement. The Engineering East building, also known as Building 20, is an example of a campus building that requires a quality HVAC system. By upgrading the HVAC, the building conditions can be positively enhanced through better cooling and ventilation, allowing students in the labs and classrooms to have a better experience within the building. This paper details the methodology behind installing a …

Framing Exterior Partitions For The Great Northern Services Housing Project, Patrick Pierre Shami

Construction Management

In the wake of a fire in Weed, CA that destroyed 150 homes, Great Northern Services (GNS), a nonprofit organization, reached out to Cal-Poly San Luis Obispo about a service-learning opportunity. This opportunity involved designing a single-family home and prefabricating the exterior partitions in San Luis Obispo. In Fall 2017, interdisciplinary teams of students delivered design proposals in the Integrated Project Delivery studio. The selected design was then finalized into a permitted set of drawings, and planning for the prefabrication began. The extent of the prefabrication was limited to the framing and sheathing of the exterior walls. The length of …

Implementing An “Intro To Sst” Topics Course, Connor M. Cody

Construction Management

This study is designed to gauge Cal Poly Construction Management students interest level in a potential new topics course, “Intro to SST”, that will feature small building projects and emphasize construction safety. With this course, students will be more experienced and safe with building in the SST prior to the Residential and Commercial building labs, as well as receiving a brief knowledge of what goes into the trade jobs on a day to day basis. Students were asked to answer ten questions – nine survey and one free response. These questions were designed to provide quantitative and qualitative data that …

Site Safety In San Luis Obispo County, Crystal Becerra

Construction Management

Site safety is a key determinant in a project’s success. In order for a site safety plan to be effective it needs to be implemented and enforced from management all the way down to the laborers on site and it must be site specific. The goal of every safety plan is to identify potential hazards and to have zero accidents throughout the project’s construction. An accident on the jobsite can cause a project to be delayed, increase overall cost, and can even cause a fatal accident (Randle, 2018). This paper will investigate the factors affecting the lack of safety compliance …

Workflow For Modeling Prefabricated Building Assemblies In Autodesk Revit, Matthew Truss

Construction Management

In 2008, by request of the National Institute of Standards and Technology (NIST), the National Research Council† (NRC) put together a committee of experts to advise a plan that would advance the “competitiveness and productivity of U.S. construction industry in the next 20 years.” Two of those recommendations included the widespread deployment of building information modeling (BIM) and greater use of prefabrication, preassembly, modularization, and off-site fabrication techniques. Case studies on the subject overwhelmingly report faster project delivery, improved quality, and safer working conditions. However, current data indicates that labor productivity has still been significantly lacking, perhaps showing that investment …

Ghana Clean Water Initiative – Risk Management, Mason Nolan

Construction Management

In August of 2019 several Cal Poly Students will be traveling to a remote fishing village located off of Lake Volta in Ghana. This project is being completed by Cal Poly's MCAA chapter alongside the NECA chapter. These students will be constructing a community center, a water filtration system, and ice making and refrigeration facilities. The project will rely heavily on solar power as there is no grid in the village the project is taking place in. This project inherently has many risks associated with it and needs a risk management plan to combat these risks. The three ways these …

Calibrating Cii Rt283s Modularization Critical Success Factor Accomplishments, Jin Choi, James T. O’Connor, Young Hoon Kwak, Rajarshi Ghimire

Civil and Environmental Engineering and Construction Faculty Research

Modularization is a well-known construction technique where sections of the job are moved from on-site to a fabrication shop. Previously, the researchers identified the 21 most influential Critical Success Factors (CSFs) for successful modularization and quantified the degree of each CSF’s accomplishment by conducting a survey with 19 subject matter experts, and a case study with three modular projects. Through this methodology, the findings relied on the experience of experts. However, still missing from the understanding of modularization CSFs is a validation of the current degree of each CSF’s accomplishment by examining actual modular projects using a sufficient number of …

Investigating Stakeholders' Perceptions Of Feasibility And Implications Of Modular Construction-Based Post-Disaster Reconstruction, Pedram Ghannad, Yong-Cheol Lee, Jin Ouk Choi

Civil and Environmental Engineering and Construction Faculty Research

Natural Disasters cause major adverse social and financial effects by destroying homes and infrastructures. For example, Hurricane Katrina in August 2005 damaged over 214,700 homes in New Orleans and forced over 800,000 citizens to live outside of their homes due to flooding. Thus, these disasters require a quick and efficient response to post-disaster housing issues and provide resources for temporary houses for short-term disaster relief and reconstruction of destroyed and damaged housing for full rehabilitation. Reconstruction of permanent housing for disaster victims is one of the most time-consuming activities in the post-disaster recovery process. However, time is a critical factor …

Statistical Viability Analysis Of United States Air Force Estimating Cost Factor For Sustainable Construction, Philip A. Ramsey, Diedrich Prigge, Torrey J. Wagner, Alfred E. Thal Jr.

Faculty Publications

Varying legislation and executive orders coupled with needs for energy resiliency have led the United States Air Force (USAF) to pursue sustainable construction. However, the limited understanding of initial costs to implement these changes have contributed to poor project cost estimating, resulting in 62 percent of USAF projects experiencing more than 5 percent cost growth. After reviewing 1628 USAF Military Construction (MILCON) construction projects in 922 category codes (CATCODEs), a twotailed t-test for populations with unequal variance was accomplished on the final normalized contract cost for 340 projects in 16 CATCODEs executed between 2002 and 2017. This analysis provides a …

A Comparative Study Of Insertion Loss Of Traffic Noise Barriers In Georgia, Pablo Giraldo, Jidong Yang

Master of Science in Civil Engineering Theses

In this paper, three types of traffic noise barriers, interlocking steel panels, precast concrete panels, and Paragon panel 23-T, were evaluated in terms of insertion loss. Field test was conducted for the noise barriers recently installed as part of the Northwest Express Project in Georgia. The noise insertion loss was measured as noise difference in A-weighted decibels (dBA) immediately before and after the barriers. The insertion loss was then evaluated by correlating with noise barrier types and other influential variables, including the separation distance of barriers from traffic, the level of traffic, wind speed, and pavement types. The results showed …

Auto-Calibration Of Wim Using Traffic Stream Characteristics, Johnson Baker

Graduate Theses and Dissertations

This project evaluates the performance of Weigh-in-Motion (WIM) auto-calibration methods used by the Arkansas Department of Transportation (ARDOT). Typical auto-calibration algorithms compare the WIM measured weights of vehicles from the traffic stream to reference values, using five-axle tractor-trailer configured trucks for comparisons, e.g. Federal Highway Administration (FHWA) Class 9. Parameters of the existing algorithms including the Front Axle Weight (FAW) reference value, the sampling frequency required to update the calibration factor, and thresholds for Gross Vehicle Weight (GVW) bins were evaluated. The primary metric used to estimate algorithm performance was Mean Absolute Percent Error (MAPE) between the WIM and static …

Airport Taxiway Traversal And Safety Optimization Using Combinatorics, Thore Groenlund Rasmussen

Theses and Dissertations

The demand for air travel has increased dramatically in the last decade, putting large strain on airports and their limited resources. Expanding the available resources at an airport is not always an option either due to location, budget or time. This forces the administrators of an airport system to use the limited resources as efficiently as possible. This thesis proposes a tool for air traffic controllers and pilots that can be used when planning taxiway systems. Taking inspiration from Dijkstra’s Algorithm, an algorithm is proposed to safely move aircraft from the terminal to the runway. Applying constraints to the algorithm …

Bs News May/June

Building Services Engineering

No abstract provided.

Turbulent Effects On Building Pressure Using A Two-Dimensional Finite Element Program, Jonese Woods

Civil Engineering Undergraduate Honors Theses

Much of the knowledge about building aerodynamics today was obtained from physical testing like wind tunnel testing. Physical testing is time-consuming and very expensive. As a result, computational methods like the finite element method are being explored for use in building aerodynamics. Despite several years of research, there is still not a clear understanding of the peak pressure on buildings due to turbulence. Many of the research thus far has focused on comparing different computational methods. However, much work is needed in understanding the capability of the individual methods. In this work, a two-dimensional finite element program is used to …

The Professional Constructor, Full Issue, Volume 44, Number 01

The Professional Constructor

No abstract provided.

Reliability-Based Shear Rating Of Prestressed Concrete Bridge Girders Considering Capacity Adjustment Factor, Alaa I. Chehab, Christopher D. Eamon

Civil and Environmental Engineering Faculty Research Publications

In this study, the reliability of prestressed concrete (PC) bridge girders in the shear rating process is quantified, where the use of a simple procedure to enhance the accuracy of shear capacity evaluation for rating is evaluated. It was found that the approximate methods used in code-based procedures to develop shear resistance used for reliability calibration of the AASHTO Bridge Design Specifications and the Manual for Bridge Evaluation result in larger discrepancies in reliability than previously assumed, as well as substantially conservative shear capacity evaluation in most cases. To examine the effects of using a more accurate shear rating process, …

Bridge Deck Delamination Segmentation Based On Aerial Thermography Through Regularized Grayscale Morphological Reconstruction And Gradient Statistics, Chongsheng Cheng, Zhexiong Shang, Zhigang Shen

Department of Construction Engineering and Management: Faculty Publications

Environmental and surface texture-induced temperature variation across the bridge deck is a major source of errors in delamination detection through thermography. This type of external noise poises a significant challenge for conventional quantitative methods such as global thresholding and k-means clustering. An iterative top-down approach is proposed for delamination segmentation based on grayscale morphological reconstruction. A weight-decay function was used to regularize the reconstruction for regional maxima extraction. The mean and coefficient of variation of temperature gradient estimated from delamination boundaries were used for discrimination. The proposed approach was tested on a lab experiment and an in-service bridge deck. The …

Analysis Of Military Construction Cost Growth In Major Defense Acquisition Programs, Emily E. Angell

Theses and Dissertations

This study is an exploratory analysis combining military construction (MILCON) data from the Selected Acquisition Reports (SAR) of Major Defense Acquisition Programs (MDAP) with the associated Automated Civil Engineer System project actual costs. The analysis uses both descriptive and inferential statistics to identify cost growth of MILCON at the programmatic level as well as to bridge the gap between SAR estimates and actual project costs within those program-level estimates. Overall, programs experience more negative growth (cost savings) in MILCON estimates on SARs, typically less than 0.2% of the total program cost implying minimal impact to program decisions. Estimates got more …

Application Of Computational Tools To Spaghetti-Based Truss Bridge Design, Jin Xu, Jiliang Li, Nuri Zeytinoglu, Jinyuan Zhai

ASEE IL-IN Section Conference

Application of Computational Tools to Spaghetti-Based Truss Design

Statics and Strength of Materials are two foundational courses for Mechanical/Civil Engineering. In order to assist students in better understanding and applying concepts to a meaningful design task, SolidWorks and theoretical calculation were used for a spaghetti-bridge design contest with the constraints of given maximum weight and allowable support-material weight. As the first step of this iterative designing process, both extrude feature and structural member were introduced to model planar bridge trusses. Then SolidWorks’ Statics module was used to run FEA analysis of the structural performance in efforts to optimize the …

Latex Modified Concrete - Very Early Strength, Bobby Steele

Purdue Road School

INDOT came out with specifications for a very early strength concrete to use on bridge deck overlays. This concrete is fast setting, which allows overlays to be performed over a weekend and benefits the traveling public with a short duration of traffic interference. Cure time to reach the strength requirement is 3 hours. E&B Paving performed the first application with the new spec on August 26, 2018. Many changes were also made to the INDOT Specification Section 722.

Rough Roads Ahead!?, Sarah Reed, Brooke Thomas, Jim Hellmann

Purdue Road School

Have you ever found yourself in the public's cross-hairs when it is time to implement a few roadway improvements? Are you handicapped in your ability to describe the true value of community planning and economic development planning? Come hear from one dynamic trio with the ability to identify issues and opportunities that others might not see and work to uncover even more ways tin which we are better together.

Study Of Various Construction Job Functions To Address Workforce Challenge, Abraham Bonilla, Dhaval Gajjar, Kenneth Sullivan

The Professional Constructor

Lack of construction workforce is one of the most predominant challenges faced by the construction industry. It is predicted that the industry will have a major shortage of skilled labor in the next decade due to the retirement of baby boomers and the lack of new talent entering the industry to replace these baby boomers. To attract young talent into the construction industry, it is critical to make them aware about the industry regarding various job functions as it relates to job satisfaction, compensation and career fulfilment. The purpose of this study is to gain insight of various construction job …

Consumer Perception And Willingness To Pay For Extended New Home Warranties, C. Todd Usher, Joseph M. Burgett

The Professional Constructor

Construction standards and methods for building new homes has improved over the last two decades resulting in significant improvements in energy efficiency, comfort, indoor air quality, and durability of new homes. Despite these improvements, the most common builder warranty for a new home in the United States ranges from 6 months to two years in duration. During the past two decades, manufacturer warranties on other durable goods such as automobiles has increased significantly. This study measures consumer perceptions of extended 12 year new home warranties with a survey completed by 162 adults in the United States. The results indicate that …

Implementing Unbiased Decision-Making In Construction: A Lean Approach, Somik Ghosh, Michelle Robinette, Howard Tapia

The Professional Constructor

Construction project-teams are frequently faced with the task of decision-making as part of their responsibility. The positive effects of the decisions made at various stages of the projects lead to improved project performances, while negative effects can hinder the performances. The project teams take up the task of decision-making surrounded by multiple criteria, which can be arduous and clouded with subjectivity. This paper presents an approach based on the Lean principle of providing more autonomy to the project-teams and supporting collaborative and decentralized process in pursuit of unbiased decision-making. This Lean way of decision-making is formalized as Choosing by Advantage …

Attracting And Retaining Future Top Performing Employees: A Student Perspective, Julia Allen

The Professional Constructor

This essay provides insight as to how construction companies can both attract and retain top performing employees. By making the standard interview and recruiting processes more personal, construction companies can evaluate potential hires to see is they are a good fit for the company for years to come. Once employees are hired, companies then need to provide opportunities for both personal and professional growth. From personal experiences, I share the characteristics I find most important in an ideal employer and emphasize the importance of having an in-depth, genuine conversation with potential hires.

Attracting And Retaining Top Employees By Placing Proper Value On Their Contribution To The Company, Joseph Franklin Iii

The Professional Constructor

Due to an optimistic economic future, construction companies want to attract and retain the best employees to ensure company success. Because of a larger job market, employees now look for the optimal work values to be met in long-term employment opportunities. Construction companies have many challenges when attracting and retaining top employees in a growing market. Therefore; it is beneficial for employers to consider the evolving work values of employees and for these values to be promoted throughout company culture. Offering employees good value for their contribution to the company attracts and retains top employees.