Construction Engineering and Management Commons^™

Hydronic Service Valve Product Development, Mark Hunsaker

Construction Management

Since the inception of modern mechanical and HVAC systems, maintenance and repairs have been prevalent in both contracting and facility operations. The average life of HVAC equipment is fractional compared to the life of buildings as construction technologies improve. Traditionally, the serviceability of heating and cooling equipment has entailed the significant amounts of labor and materials to disruptively drain or freeze hydronic systems in order to cut in means of bypassing the main system, swapping out equipment, or repair. The intent of this project is to explore alternative methods to forgo the aforementioned negative impacts of service and to improve …

Cal Poly Associated General Contractors Service- Learning Project In San Ignacio, Belize, Will A. Myers

Construction Management

In the winter of 2020, the Cal Poly Associated general Contractors chapter of San Luis Obispo built over 200 linear feet of soccer seating for the community of Selena, just outside of San Ignacio, Belize. Our team fundraised over $18,000 and designed a soccer stadium that would leave a lasting impact on the community. Throughout all phases of the project, we were challenged with many obstacles that tested our ability to overcome and handle difficult situations.

Belize Service Learning: A Case Study In Construction Technology Abroad, Parker H. Doshier

Construction Management

In Winter of 2019, members of the Associated General Contractors, Student Chapter at Cal Poly traveled to Selena, Belize to complete soccer bleachers at the local soccer field. This trip offered an excellent case study into feasibility and benefits of new construction technology on all project sizes and in different countries. SketchUp was used in multiple phases of this project including design, estimating and the creation of as-builts. Procore offers an array of useful features including the scheduling, daily logs and meetings that were used on this project. The scheduling feature was useful in tracking travel deadlines and for monitoring …

A Case Study On The Financial Implications Of The Zero Net Energy (Zne) Goal In California, Shane A. Willingham

Construction Management

This paper is a case study that identifies potential financial implications from the updated Title 24, Part 6 code requirements established in 2019 by the California Energy Commission (CEC). The CEC works closely with the California Public Utilities Commission (CPUC), who’s long term goal is to make all residential structures Zero Net Energy (ZNE) throughout the state. The CEC’s updated code requirements include mandatory measures for detached residential homes to meet Zero Net Electricity on an Energy Design Rating (EDR) basis, a step towards Zero Net Energy. The purpose of this study is to understand the additional construction costs associated …

Housing And Community Development Project In Siem Reap, Cambodia, Gerald F. Charette Iii

Construction Management

Habitat for Humanity Global Village is an international organization that gathers materials and volunteers to build homes for less fortunate villages in more than 70 different countries. The team I applied for was chosen to build a house for a family of four in a village near Siem Reap, Cambodia. I chose this as my senior project because it combines my interests in construction and humanitarian work, as well as giving me the opportunity to expand my knowledge of a different country’s construction means and methods. I felt that that the best way to showcase the material that I have …

Neca Ghana Project, Michael T. Klee

Construction Management

Cal Poly’s motto is, “Learn by Doing" and for Cal Poly’s NECA Chapter, this isn’t simply a motto, but a directive for proactive change. For my senior project I will be leading the Cal Poly NECA chapter in the design, pre- fabrication and construction of a 5-7kw solar array, community center, ice production room and technology room in the remote fishing village of Agbokpa, Ghana. The solar array will power multiple industrial DC freezers, high efficiency LED lighting and charging stations while additionally powering water filtration and irrigation systems. Like many other fishing villages around the world, Agbokpa has no …

Increasing Health And Safety Through The Utilization Of 4d Modeling, Rogan J. Wells

Construction Management

Health and safety is one of the most important aspects of the construction industry. Every year there are thousands of work-related injuries in the construction industry. Avoiding these injuries is of the utmost importance on a jobsite. This paper will analyze how building information modeling, specifically the use of 4D building information modeling, can be utilized to increase the overall health and safety of construction jobsite. An exploratory survey was conducted amongst architecture, engineering, and construction industry professionals who hold a wide range of experience. The aim of this survey was to analyze their knowledge and experiences using building information …

Construction Curriculum Developed For Continuation Schools, Orlando I. Yepez

Construction Management

This paper will discuss a curriculum, an introduction to construction fundamentals, that was built for continuation schools. A continuation school is a school for at-risk youth in which it provides programs of empowering, inspiration and outlet. Five modules were created that focus on different sections of the construction industry. These modules consist of Site Safety, Untroduction to Basic Math, Introduction to Power Tools, Introduction to Construction Drawings, and Basic Employable Skills. Each module will consist of a ten-question quiz and presentation. Two homework assignments were also created. One homework assignment for site safety which requires students to identify if the …

Analyzing More Sustainable Alternatives Than Using Ordinary Portland Cement In Commerical Construction, Brandon A. Sturla Bs

Construction Management

The purpose of this paper is to look at more sustainable alternative options for concrete use for California Commercial Contractors. This paper will analyze the more sustainable options for concrete and come to conclusions on how effective the alternative options are for protecting the environment, encouraging sustainability, maintaining cost effectiveness, and maintaining efficiency in building. This paper provides data on the negative impact concrete use has had on the environment and potential ways to alleviate this. This paper will also analyze how cost-effective the alternative options are to see if the alternative options are realistic and affordable to use in …

Prefabrication And The Labor Shortage On The Central Coast, Brenden Ryan Napier

Construction Management

The labor shortage has affected every aspect of construction all over California, however the central coast has been hit especially hard. The central coast’s location between the two major developmental hubs presents challenges such as relocating employees and finding skilled craftsman. One potential method that has been shown to increase productivity and cut costs is to prefabricate. Prefabrication can improve working conditions and increase worker safety while streamlining schedule and reducing environmental impact. While these benefits are certainly possible in larger cities that have the manufacturing grunt, this paper aims to understand if prefabrication is a viable way to alleviate …

Wireless Underground Communications In Sewer And Stormwater Overflow Monitoring: Radio Waves Through Soil And Asphalt Medium, Usman Raza, Abdul Salam

Computer Information Technology Faculty Publications

Storm drains and sanitary sewers are prone to backups and overflows due to extra amount wastewater entering the pipes. To prevent that, it is imperative to efficiently monitor the urban underground infrastructure. The combination of sensors system and wireless underground communication system can be used to realize urban underground IoT applications, e.g., storm water and wastewater overflow monitoring systems. The aim of this article is to establish a feasibility of the use of wireless underground communications techniques, and wave propagation through the subsurface soil and asphalt layers, in an underground pavement system for storm water and sewer overflow monitoring application. …

Construction Labor Productivity Modeling And Use Of Neural Networks: A Bibliometric Survey, Shalaka Hire, Sayali Sandbhor

Library Philosophy and Practice (e-journal)

Productivity of a project has a major impact on its cost and profitability. In spite of construction being labor intensive field with labor cost adding up to 30% to 50% of overall project cost, the productivity of labor is one of the least studied areas in the construction industry. It requires to be given due attention to the issues affecting labor productivity and design solution using soft computing techniques to improve the overall performance of the industry. This research paper aims to conduct a bibliographic survey of the literature available in the domain of Labor Productivity (LP) as well as …

A New Materials And Design Approach For Roads, Bridges, Pavement, And Concrete, Alan Fuchs, Tathagata Acharya, Luis Cabrales, Jesse Bergkamp, Nyakundi Michieka

Mineta Transportation Institute

Increased understanding of demand for transport energy and how to improve road pavement materials would enable decision makers to make environmental, financial, and other positive changes in future planning and design of roads, bridges, and other important transportation structures. This research comprises three studies focused on pavement materials and a fourth study that examines energy demand within the road transportation sector. These studies are as follows:

1. A techno-economic study of ground tire rubber as an asphalt modifier;

2. A computational fluid dynamics analysis comparing the urban heat island effect of two different pavement materials – asphalt and Portland Cement …

Reducing Nox Emissions Of Cargo Handling Equipment (Che) With Humid Air Systems, Hamid Rahai, Jeremy Bonifacio

Mineta Transportation Institute

The authors designed and tested a humid air system (HAS) for reducing NOx emissions of an LPG-powered forklift. The HAS uses distilled water and heat from the exhaust to generate steam that is injected into the intake air of the engine to increase humidity and thus achieve NOx reduction. Field tests with HAS have shown 2.2 ppm of NOx reduction with each percent increase in humidity of the intake air. A provisional patent based on the developed system has been filed.

Challenges Of International Development Projects In Yemen: Perspective Of Public Work Project, Mohammed Lashuel Hassan Mohammed

Student Works (2020-2029)

International development projects are public projects that are created to support the economy and people’s life needs, mostly these types of projects target developing countries. These types of projects face challenges more than other projects due to many reasons. Accordingly, this research aims to explore the challenges that face international development projects in Yemen and conducted by the Public Work Project and highlight the most significant issues that face ID project as well to overcome these challenges. This research adopted the qualitative method by conducting ten semi-structured interviews with the PWP team and others stakeholders. The interview technique was selected …

Performance Evaluation Of Lightweight Normal And Geopolymer Foamed Concrete Using Palm Oil Fuel Ash As Partial Replacement Of Binder, M .E. Alnahhal Ahmed

Student Works (2020-2029)

Carbon dioxide (CO2) emissions from Ordinary Portland Cement (OPC) have a detrimental effect on the environment and this had led many researchers to search for other alternatives in the form of sustainable cementitious materials. The depletion of natural resources and dumping the industrial by-products and waste materials are serious concern to our environment. This research focusses on the performance of using a palm oil industrial by-product, namely, palm oil fuel ash (POFA), as a partial replacement for OPC and fly ash (FA) in lightweight normal foamed concrete and lightweight geopolymer foamed concrete, respectively. Thus, using 10, 20, and 30% POFA …

Why Are Residential Property Developers In Ireland Not Using Bim?, Bim Tudublin, Simon Burke

Capstone Reports

The aim of this paper is to establish the level of BIM adoption by larger-scale residential property developers in Ireland and investigate the benefits and challenges of implementing BIM for residential housing. While BIM is a relatively new concept in Ireland for housing, developers and investors in larger scale developments are beginning to recognize areas where BIM can add value to their projects. The research also indicates that while there is evidence of successful BIM implementation for housing resulting in savings in cost and time, widespread adoption is hindered by a lack of knowledge and skills, costs of implementation, lack …

Steel Model Approval: Can Bim Provide A Drawing-Free Approval Process?, Bim Tudublin, David Reynolds

Capstone Reports

Despite widespread use of Building Information Modelling (BIM) software used within their industry, the approval of steelwork contractor’s design information is largely based on the approval of 2d-drawings. These workflows can be modernised to take advantage of current technology and provide productivity gains, but barriers to change exist. This research is an attempt to answer the research question of if a model-based approval process, which removes the need for drawings, is achievable. To answer this question, a mixed methodology was used. A literature review was performed to understand how the approval process works, what information is required and what BIM …

A Comparative Study Of Cadworx Plant 2018 And Revit 2020 With Ez-Iso Add-In, For The Production Of Piping Isometrics, Bim Tudublin, Killian Lynch

Capstone Reports

BIM software evaluation and selection is a complex process. In this paper, a comparative study of Revit 2020 with Ez-ISO add-in, and CADWorx Plant 2018, was carried out. The aim of this study was to determine if a MEP contractor could consolidate software usage into one package, thereby reducing costs for pipework modelling and isometric production. A comprehensive evaluation was developed based on a literature review. A multicriteria decision-making method was used in conjunction with the software evaluation to ensure sound choices were made. An online survey of senior BIM professionals was conducted to validate the analysis and findings. The …

A Critical Appraisal Of Findings And Solutions To Overcome Erroneous Bim Model Production And Information Delivery Workflows, Bim Tudublin, Ryan Forde

Capstone Reports

There are many varying definitions of Building Information Modelling, all of which reflect its transformative capabilities and impact on the construction sector. BIM is an emerging technological and procedural shift within the AEC industry (Succar, 2009). BIM is not just a technological change, but also a procedural and workflow change (Charles Eastman, 2018). Despite the growth of BIM adoption and increasing levels of maturity regarding BIM standards, numerous issues still arise at a micro level during project execution. BIM invokes the need for workflows, frameworks and processes that imparts knowledge, heightens trust, increases efficiency and consistency while reducing fragmentation and …

Building Information Modelling For Building Services Engineering: Benefits, Barriers And Conducive Measures, Wai Yee Betty Chiu, Joseph H.K. Lai

Faculty of Science & Technology (THEi)

Purpose – Mandating the use of building information modelling (BIM) in building projects has sprawled, but the uptake of BIM in building services engineering (BSE) remains sluggish. The purpose of this paper is to explore how to achieve wider adoption of BIM in BSE. Design/methodology/approach – Through an extensive literature review, the benefits of, barriers to and measures conducive to, using BIM for BSE were identified and classified. Built upon the review and a focus group meeting, a questionnaire was devised for an industry-wide survey in Hong Kong and the survey data were processed by statistical analyses. Findings – On …

On-Site Measurement Of The Water-Cementitious Ratio And Heat Of Hydration Of Delivered Concrete, Seyednavid Mardmomen

Graduate Theses, Dissertations, and Problem Reports (ETD)

In this study, AASHTO T318-15 was adopted to estimate the water content of fresh concrete mixes and then revised to have better precision. The additional step required sieving out the coarse aggregate after drying the sample in a microwave oven, and it was then used in the calculation of the absorbed water and cementitious material content. Several laboratory batches, as well as on-site water-cementitious (w/cm) ratio tests, were performed on concrete mixes containing ordinary Portland cement, ground granulated blast furnace slag, and Class F fly ash. The results of the experiments indicated that the accuracy of the revised method was …

Design And Analysis Of A Pavement Marker Detection System, Timothy L. Johnson Ii

Theses and Dissertations--Civil Engineering

Personal injuries and property damage due to the failure of snow-plowable pavement markers which detach from pavement surfaces has led to the development of new all-plastic pavement markers which are located entirely below the planar surface of the pavement. The new all-plastic design pushes existing solutions used to avoid striping over highway reflectors into obsolescence since current solutions operate using electromagnets to sense the metal housings of snow-plowable pavement markers. A replacement solution is currently sought by the highway maintenance industry and three different marker detection methods were developed and tested on real-world highways with both new and aging pavement …

Life Cycle Information Models With Parameter Uncertainty Analysis To Facilitate The Use Of Life-Cycle Assessment Outcomes In Pavement Design Decision-Making, Chaitanya Ganesh Bhat

Dissertations, Master's Theses and Master's Reports

The objective of this dissertation is to develop Life Cycle Information Models (LCIMs) to promote consistent and credible communication of potential environmental impacts quantified through Life-Cycle Assessment (LCA) methodology. The introduction of Life Cycle Information Models (LCIMs) will shift the focus of pavement LCA stakeholders to collect reliable foreground data and adapt to consistent background data present within LCIMs. LCA methodology requires significant Life Cycle Inventory (LCI) data to model real world systems and quantify potential environmental impacts. The lack of guidance in ISO standards on consistently compiling LCI data and defining protocols for modeling lowers the reliability of LCA …

Peak Pressures On Low Rise Buildings: Cfd With Les Versus Full Scale And Wind Tunnel Measurements, Aly Mousaad Aly, Hamzeh Gol-Zaroudi

Faculty Publications

This paper focuses on the processes of wind flow in the atmospheric boundary layer, to produce realistic full-scale pressures for the design of low-rise buildings. CFD with LES turbulence closure is implemented on a scale 1:1 prototype building. A proximity study was executed computationally in CFD with LES that suggests new recommendations on the computational domain size, in front of a building model, apart from common RANS-based guidelines (e.g. COST and AIJ). Our findings suggest a location of the test building, different from existing guidelines, and the inflow boundary proximity influences pressure correlation and reproduction of peak loads. The CFD …

A Framework For Sustainable Procurement Practice In The Irish Construction Industry, Duga Jamus Ewuga

Doctoral

The Architectural, Engineering and Construction (AEC) sector has been called upon to develop innovative strategies to drive sustainability. Despite the efforts and commitments made, their performance is still observed to be low, this has been linked to the low level of understanding of practitioners. Also noted was the lack of interest by firms due to the uncertainty of the benefits of committing to long term investments. Nevertheless, academic literature and reports have stated that firms nowadays utilise their procurement mechanism to drive their sustainability practice. However, there is a gap in understanding how construction firms adopt and embed sustainability in …

Analyzing Citation Metrics In Civil Engineering With Focus On Construction Engineering And Management, Islam H. El-Adaway, Gasser G. Ali, Rayan Assaad, Amr Elsayegh, Ibrahim S. Abotaleb

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

There are several metrics used to evaluate academic publications, including number of citations, h-index, and others. While these metrics are directly related to rewards in the academic community, it is debated whether they correctly reflect the true impact of research. As such, there is a need to clearly interpret and understand such metrics. The goal of this paper is to investigate the citation metrics used to assess academic publications in civil engineering (CE) with a considerable focus on construction engineering and management (CEM). The investigation of these two research fields is important since each one of them has its own …

A Review On Investigating The Experimental Process For Partial Replacement Of Cement With Sugarcane Bagasse In The Construction Industry, Amany G. Micheal Prof., Rania Rushdy Moussa Ass. Prof., Nadin Magdy Dawoud Eng.

Architectural Engineering

In the last few decades there has been speedily increasing in the agriculture and industrial wastes. This causes many environmental issues and raises the potential to contaminate the natural resources of living such as water, air and soil. Recently, the amount of organic waste produced daily has been rising, while it is poorly managed. It is either burned or disposed improperly, which effect negatively the environment and public health. On the other hand, during the cement production process many wastes, and pollutants are generated which have major negative impacts on the environment. Cement is considered as a substantial constituent of …

การปรับปรุงสะพานทางหลวงจากผลกระทบแผ่นดินไหวด้วยระบบแยกฐานและการเสริมค่าความหน่วงโดยใช้เหล็กเดือย, ยงศักดิ์ จิวะตระกูลธรรม

Chulalongkorn University Theses and Dissertations (Chula ETD)

การออกแบบโครงสร้างสะพานภายใต้แรงแผ่นดินไหวด้วยระบบแยกฐาน สามารถลดผลกระทบที่เกิดจากแรงกระทำได้เป็นอย่างดี แต่ในขณะเดียวกันกลับทำให้โครงสร้างสะพานส่วนบนเกิดการเคลื่อนตัวที่มากขึ้นเป็นผลให้เกิดการชนกันระหว่างชิ้นส่วน และเกิดการวิบัติจากระยะรองรับช่วงสะพานที่ไม่เพียงพอ งานวิจัยนี้มีวัตถุประสงค์ในการศึกษาผลตอบสนองของชิ้นส่วนโครงสร้างสะพานที่ถูกออกแบบด้วยระบบแยกฐานและใช้เหล็กเดือยช่วยในการสลายพลังงานและลดการเคลื่อนที่ของคาน ซึ่งจะทำการวิเคราะห์โครงสร้างด้วยวิธีการไฟไนต์อิลิเมนต์ โดยใช้โปรแกรม SAP2000 การศึกษาเลือกพิจารณาสะพานแบบคานคอนกรีตอัดแรงรูปตัวไอ มีความยาวช่วงเสา 20 เมตร ทั้งหมด 5 ช่วง มีการติดตั้งแผ่นยางรองคานสะพานเป็นอุปกรณ์แยกฐาน นอกจากนี้จะทำการคัดเลือกคลื่นแผ่นดินไหวให้สอดคล้องกับการสั่นไหวของพื้นดินที่เกิดขึ้นใน จังหวัดเชียงใหม่ ประเทศไทย หลังจากทำการสร้างแบบจำลองจะทำการวิเคราะห์โครงสร้างด้วยวิธีการวิเคราะห์การตอบสนองไม่เชิงเส้นแบบประวัติเวลา โดยจะทำการเปรียบเทียบผลการตอบสนองของโครงสร้างสะพานทั้งก่อนและหลังการปรับปรุงโดยใช้เหล็กเดือย ซึ่งจะพิจารณาในกรณีที่เพิ่มความหนาของแผ่นยางรองคานสะพานจากเดิมขนาด 20 เป็น 100 มิลลิเมตร และทำการติดตั้งเหล็กเดือยขนาดเส้นผ่านศูนย์กลาง 25 มิลลิเมตร เป็นอุปกรณ์ยึดรั้ง ผลการศึกษาพบว่าการเลือกปรับปรุงโดยการเลือกใช้เหล็กเดือยจำนวน 2 ชิ้น ติดตั้งในระนาบที่ยึดรั้งบริเวณจุดรองรับของโครงสร้างสะพานส่วนบนกับโครงสร้างสะพานส่วนล่าง ให้ผลการตอบสนองที่เหมาะสมมากกว่ากรณีก่อนการปรับปรุง โดยระยะการเคลื่อนตัวสูงสุดของคานรองรับแผ่นพื้นลดลงจาก 64 เป็น 51 มิลลิเมตร คิดเป็นร้อยละ 20 และยังช่วยลดผลการตอบสนองของโครงสร้างสะพานส่วนล่าง โดยเสาตอม่อเกิดการครากเพียงเล็กน้อย นอกจากนี้แรงเฉือนสูงสุดที่ฐานลดลงร้อยละ 22 เมื่อเทียบกับกรณีก่อนการปรับปรุงโครงสร้างสะพาน

การพัฒนาผนังสลายพลังงานแบบวิสโคอิลาสติก, ฐิติพงศ์ เจริญสุข

Chulalongkorn University Theses and Dissertations (Chula ETD)

งานวิจัยนี้มีวัตถุประสงค์ในการศึกษาพัฒนาผนังสลายพลังงานแบบวิสโคอิลาสติก (Viscoelastic wall dampers) ด้วยวัสดุ Asphalt (ยางมะตอย) และ Polyisobutene (PIB) แม้ว่าในปัจจุบันมีผู้ผลิตอุปกรณ์สลายพลังงานสำหรับอาคารเพื่อต้านทานแผ่นดินไหวและแรงลมจำหน่าย แต่มีราคาแพงเพราะต้องนำเข้าจากต่างประเทศ ทั้งมีค่าใช้จ่ายในการติดตั้งและบำรุงรักษาที่สูง นอกจากนั้นยังพบว่า ส่วนใหญ่มีรูปแบบที่กระทบต่อความสวยงามด้านสถาปัตยกรรม ในงานวิจัยนี้จึงพิจารณาถึงความเป็นไปได้ในการพัฒนาผนังสลายพลังงานแบบวิสโคอิลาสติกด้วยวัสดุที่มีราคาไม่แพง มีรูปแบบคล้ายผนังอาคารทั่วไปเพื่อไม่กระทบต่อความสวยงามของอาคาร โดยทำการพัฒนาแบบจำลองทางคณิตศาสตร์ของผนังสลายพลังงานจากการทดสอบชิ้นงานตัวอย่างขนาดย่อส่วนในห้องปฏิบัติการ ภายใต้แรงกระทำแบบวัฏจักร (Cyclic testing) ตามมาตรฐาน ASCE 7-16 ผลการทดลองแสดงให้เห็นว่าวัสดุ PIB มีคุณสมบัติในการสลายพลังงานที่ดี และมีเสถียรภาพภายใต้การเปลี่ยนแปลงอุณหภูมิ จึงนำแบบจำลองทางคณิตศาสตร์ของผนังสลายพลังงานชนิด PIB มาประมาณคุณสมบัติของผนังสลายพลังงานขนาดเท่าของจริง เพื่อเปรียบเทียบประสิทธิภาพในการสลายพลังงานกับผลิตภัณฑ์ผนังสลายพลังงานแบบหนืด (Viscous Wall Damper) ของต่างประเทศ ผลการศึกษาพบว่าผนังสลายพลังงานแบบวิสโคอิลาสติคที่พัฒนามีประสิทธิภาพในการสลายพลังงานดีกว่าผนังสลายพลังงานแบบหนืดอย่างมีนัยสำคัญ ทำให้สามารถลดขนาดและจำนวนผนังสลายพลังงานที่ต้องติดตั้งในอาคารได้ จึงเป็นอีกหนึ่งทางเลือกในการออกแบบต้านทานแผ่นดินไหวและแรงลมที่อาจประหยัดและมีประสิทธิภาพกว่าวิธีการปกติที่นิยมเพิ่มขนาดส่วนโครงสร้างให้มีกำลังหรือสติฟเนสมากขึ้น