Engineering Commons^™

Estimating Required Contingency Funds For Construction Projects Using Multiple Linear Regression, Jason J. Cook

Theses and Dissertations

Cost overruns are a critical problem for construction projects. The common practice for dealing with cost overruns is the assignment of an arbitrary flat percentage of the construction budget as a contingency fund. This research seeks to identify significant factors that may influence, or serve as indicators of, potential cost overruns. The study uses data on 243 construction projects over a full range of project types and scopes gathered from an existing United States Air Force construction database. The author uses multiple linear regression to analyze the data and compares the proposed model to the common practice of assigning contingency …

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Building Services Engineering

No abstract provided.

Behavior Of Filament Winding Fiber Reinforced Polymer Structural Members, Mohamed Soliman Samy Aguib

Archived Theses and Dissertations

Fiber-reinforced polymeric (FRP) composites are being considered for structural members in construction as lighter, more durable alternatives to steel and concrete. Unlike steel and similar isotropic materials where mechanical properties are independent of the applied load directions composites are anisotropic materials by nature. Pultredud FRP structural members that are considered unidirectional members are subjected to premature failure due to discontinuity of fiber in the transverse and through the thickness of the members in a shape of delamination failure. Proposed box-section structural member by utilizing filament-winding process using· woven roving mats instead of roving strands to reorganize the fibers in produced …

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Building Services Engineering

No abstract provided.

Correlating Factors Between Student Participation And Student Learning Via A Service Learning Project In Secondary Education: A Case Study, Shawn V. Jensen

Theses and Dissertations

In this study a service-learning project was conducted with secondary students in a construction technology based course. Three research questions were considered; (1) does service learning projects help to engage student participation, (2) can students learn the course curriculum while participating in a service learning project, and (3) is there a correlation between student participation and student learning as it pertains to service learning projects? The data was collected through surveys, observations, interviews, and evaluations. The researcher concluded the following from the study; 92% of the students were actively participating in the two week service project, 76% of the students …

Addressing The Challenges That Are Emerging In The Continued Increase In Ppp Use In The Republic Of Ireland, Louis Gunnigan, David Eaton

Conference papers

The Irish Government’s Public-Private Partnership (PPP) programme of pilot projects is now reaching its conclusion and PPP has become established as a key element in the strategy for provision of public sector facilities. Compiled through a literature review as part of a PhD level research project, this paper examines organisational culture differences between the public and private sectors and assesses the potential affect of these differences on the future development of the Irish PPP programme. By relating organisational culture differences to the emerging challenges relating to risk, value and innovation, it is evident that the lack of a partnering environment …

A Critical Appraisal Of The Roles Of Public Sector Employees In The Provision Of Educational Buildings Under A Public Private Partnership (Ppp) In The Republic Of Ireland, Louis Gunnigan, David Eaton

Conference papers

Public-Private Partnership (PPP) has now become established as a key element in the Irish Government’s strategy in the provision of school buildings. Specific guidelines have been implemented to define the public sector role in a PPP in Ireland and these guidelines represent a significant change in role from those in the traditional schools procurement process. Through a literature review, this paper maps the PPP process and establishes the new tasks that public sector employees must carry out in the adoption of PPP. The new knowledge, skills and competence (KSC) required to carry out these tasks are noted. Whilst existing literature …

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Building Services Engineering

No abstract provided.

A Hybrid Course In Fundamentals Of Building Construction Using Combination Archived Video And Live Session Distance Learning, Vernon W. Lewis Jr., Carol L. Considine, June Ritchie

Engineering Technology Faculty Publications

A course in the Fundamentals of Building Construction has been a curricular requirement of the Civil Engineering Technology Program (CET) since its inception. This course was taught traditionally as an on-campus class. Over the last ten years, the CET program has expanded to contain an extensive distance learning component, with at least half of the enrollment located off campus. The model for the typical distance-learning class is to meet for three hours, once a week, with a fully interactive (voice) live class. In consideration of the demand of a growing distance learning system, it was decided to restructure this class …

A Critical Appraisal Of The Roles Of Public Sector Employees In The Provision Of Educational Buildings Under A Public Private Partnership (Ppp) In The Republic Of Ireland, Louis Gunnigan, David Eaton

Conference papers

Public-Private Partnership (PPP) has now become established as a key element in the Irish Government’s strategy in the provision of school buildings. Specific guidelines have been implemented to define the public sector role in a PPP in Ireland and these guidelines represent a significant change in role from those in the traditional schools procurement process. Through a literature review, this paper maps the PPP process and establishes the new tasks that public sector employees must carry out in the adoption of PPP. The new knowledge, skills and competence (KSC) required to carry out these tasks are noted. Whilst existing literature …

Ultra Large Container Ships : Technical Implications And Solutions For The Design Of The Vessels And Port Terminal Facilities, Evangelos Fragkoulis

World Maritime University Dissertations

No abstract provided.

Evaluation Of Mechanical Properties Of Recycled Aggregate Concrete, Sajjad Ali Khan

Masters Theses

The maintenance and repair work in the civil engineering infrastructures develops the production of huge wastes which causes the growth of waste piles, additional costs in construction projects and some environmental problems. If this waste is recycled and used again in construction projects, it will help to overcome the problems discussed earlier. Moreover, if natural aggregates are supplemented by recycled aggregate, it will preserve the natural resources and also put a pause in the deterioration of natural landscape.

This thesis addresses the importance of using recycled aggregate in concrete structures. Its practical feasibility in construction projects is studied in light …

Evaluation Of Mechanical Properties Of Self-Consolidating Concrete, Bhusan Basnet

Masters Theses

The concept of Self-Consolidating Concrete is a fresh and rapidly ramping technology in USA, but in some other continents such as Japan and Europe it is in fully fledged stage. The development of this technology has a high potential to economize construction minimizing labor, scheduled time and equipment eliminating consolidation process. In USA, construction professionals are reluctant to its in-effect application because of lack of deliberate and methodological steps for production and applications. The lack of study of its durability characteristics and confusion in design and production process are seems to be vital factors hindering full scale production and application …

An Investigation Of Employee Satisfaction And Employee Empowerment Specific To On-Site Supervisors In The Residential Construction Industry, David Lars Halvorsen

Theses and Dissertations

Employee satisfaction and empowerment are vital elements to businesses in most industries. The construction industry has various types of employees, ranging from managers and executives to on-site supervisors and laborers. This study was conducted to obtain a greater understanding about the elements and levels of satisfaction and empowerment of on-site supervisors in the residential construction industry. An on-site supervisor in the residential construction industry is responsible for coordinating and managing employees, materials, equipment, budgets, schedules, contracts, and the safety of employees and the general public. They are also the employees most frequently perceived as accountable for the success or failure …

Resilient And Residual Properties Of Asphalt Concrete: Superpave And Conventional Mix Design, Tamer Mohamed Breakah

Archived Theses and Dissertations

No abstract provided.

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Building Services Engineering

No abstract provided.

A Gasless Method Of Spraying Thermoplastic Resin, Dan T. Rogers

Theses and Dissertations

This spraying method for thermoplastic resins is a new manufacturing process for applying thermoplastics to a mold or surface in an efficient way that has the potential of reducing cycle time. Spraying thermoplastic resins is similar to spraying other polymers, such as paint, with the differences being higher pressure and temperature. This method uses an injection molding machine with a modified nozzle to spray the plastic material. In this study, temperature, pressure, and nozzle size were factors that influenced the success of this spraying method. The method of spraying in this study proved spraying without a gas is possible, a …

Development Of Commercial Applications For Recycled Plastics Using Finite Element Analysis, Nanjunda Narasimhamurthy

Theses and Dissertations

This thesis investigates the suitability of thermo-kinetically recycled plastics for use in commercial product applications using finite element analysis and statistics. Different recycled material blends were tested and evaluated for their use in commercial product applications. There are six different blends of thermo-kinetically recycled plastics used for testing and CATIA is used for finite element analysis. The different types of thermo-kinetically recycled plastics blends are: pop bottles made of PolyethyleneTeraphthalate (PET), milk jugs made of High-Density Polyethylene (HDPE), Vinyl seats made of Poly Vinyl Chloride (PVC) and small amount of Polypropylene (PP) and Urethane, electronic scrap made of engineering resins …

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Building Services Engineering

No abstract provided.

Cm Facilities Update, Construction Management Department

Construction Management

No abstract provided.

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Building Services Engineering

No abstract provided.

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Building Services Engineering

No abstract provided.

Assessing Construction Management Higher Education Strategies: Increased Demand, Limited Resources, And Over-Enrollment, Kristen Lea Wynn

Theses and Dissertations

The purpose of this research was to see how Baccalaureate Construction Management Programs accredited by the American Council for Construction Education (ACCE) were managing increased enrollments within their programs. The review of literature identified related topics, comparable studies, and relevant issues surrounding over-enrollment. Forty-nine of the 53 accredited ACCE programs responded to the survey instrument. Over two-thirds of the respondents stated that they were either approaching, or were at the limits of enrollment capacities. Most of the respondents listed limited enrollment, the use of adjunct faculty, and funding from industry as leading strategies for managing or obtaining resources. Because CM …

Alkali Silica Reaction In Virgin And Recycled Aggregates: State Of The Art And Experimental Investigation Using Astm C 1260 And The Staining Method, Shadi Sami Bajjali

Masters Theses

Alkali silica reaction (ASR) is one of the most prevalent causes of concrete deterioration worldwide. A study done in 1995 showing the impact of ASR on structures stated that 104 concrete dams and spillways, massive concrete structures, have been damaged by alkali silica reaction up to date. Since its discovery by Stanton (1940), there has been significant research on ASR, and major advances have been made in understanding the mechanism underlying ASR-induced expansion and in developing methods of preventing ASR in new and existing concrete through proper measures including proper materials selection and mixture proportioning.

This thesis summarizes the findings …

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Building Services Engineering

No abstract provided.

Establishing Public Confidence In The Viability Of Fingerprint Biometric Technology, Nathan Alan Green

Theses and Dissertations

The most common personal authentication techniques used for identity management employ a secret PIN or password that must be remembered. The challenge, for a given user, is that a multitude of such codes must be recalled over the course of the day for transactions involving distinct computer applications. Password mania prevails. Fingerprint biometric technology is an ideal alternate solution to this password recall problem. In spite of their availability for nearly thirty years, fingerprint biometric systems still remain uncommon in public sectors of industry such as education, government, and technology. Technology has improved sufficiently that false acceptance and rejection rates …

Integrating Value Stream Mapping And Simulation, Michelle E. Scullin

Theses and Dissertations

An important principle in Lean manufacturing, value stream mapping (VSM) can be helpful in understanding how process flow and information flow affect each other. A VSM is a static picture of a process that allows the user to see where value is added into the value stream. Simulation is used to evaluate the behavioral issues of processes. In a manufacturing realm this means simulation shows how each operation affects other operations so determinations can be made about where bottlenecks or other problems exist in the process. Theoretically, the integration of VSM and Simulation can aide in process improvement by showing …

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Building Services Engineering

No abstract provided.

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Building Services Engineering

No abstract provided.

Nonlinear Model For Reinforced Concrete Under Cyclic Loading, Aly Said, M. Elmorsi, M. Nehdi

Civil and Environmental Engineering and Construction Faculty Research

Most of the available shear models for reinforced concrete rely on empirical formulations. In this study, a rational shear stress function is used to define the shear stress–strain envelope for reinforced concrete. Cyclic rules are proposed to define the loading, unloading and reloading relationships for reinforced concrete under shear stress reversals. A normal stress function describing the cyclic relationship of concrete under axial stress is also introduced. The proposed functions are verified using experimental data of reinforced concrete panels tested under monotonic and cyclic loading. Subsequently, the normal and shear stress functions along with their cyclic rules are integrated in …