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Statistical Models Of I-15 Bridge C-846: Changes In Natural Frequencies Due To Temperature, Gilbert Nichols 2017 Utah State University

Statistical Models Of I-15 Bridge C-846: Changes In Natural Frequencies Due To Temperature, Gilbert Nichols

All Graduate Theses and Dissertations

Structural Health monitoring is to determine the condition of a bridge based on instrument measurements. The C-846 Bridge in Salt Lake City has such instrumentation. The bridge is located in Salt Lake City at about 2100 South and Interstate 15. This bridge has two kinds of instruments on it: accelerometers and thermocouples. The accelerometers measure the vibrations of the bridge. The accelerometers have been recording data on the bridge since 2001. The thermocouples, which measure temperature, were added as part of this thesis in April 2016.

In light of recent research, damage may be detected from measuring the change in ...


Purdue Ect Report - Fourth Quarter 2016, Purdue ECT Team 2017 Construction Engineering & Management, Purdue University

Purdue Ect Report - Fourth Quarter 2016, Purdue Ect Team

ECT Fact Sheets

Fourth Quarter 2016

This is a quarterly report from the Purdue ECT.


Social Return On Investment As A Metric To Prioritize Use Of Accelerated Bridge Construction In Rural Regions, Philip J. Barutha, Ning Zhang, Alice Alipour, Douglas D. Gransberg 2017 Iowa State University

Social Return On Investment As A Metric To Prioritize Use Of Accelerated Bridge Construction In Rural Regions, Philip J. Barutha, Ning Zhang, Alice Alipour, Douglas D. Gransberg

Douglas D. Gransberg

Accelerated Bridge Construction (ABC) techniques have a great potential to minimize the traffic disruptions during the bridge repairs/replacements, promote traffic and worker safety, and improve the overall quality of the built bridges. Despite the major advances in design and construction of ABC techniques, transportation agencies are still hesitant about using ABC techniques largely due to perceived risks during construction and higher initial costs. Furthermore, the current decision process used to prioritize the candidate bridges for this type of construction is oftentimes solely based on metrics such as the average annual daily traffic (AADT). This paper proposes to use a ...


Contractual Approaches To Address Geotechnical Uncertainty In Design-Build Public Transportation Projects, Carla Lopez del Puerto, Douglas D. Gransberg, Michael C. Loulakis 2017 University of Puerto Rico, Mayaguez

Contractual Approaches To Address Geotechnical Uncertainty In Design-Build Public Transportation Projects, Carla Lopez Del Puerto, Douglas D. Gransberg, Michael C. Loulakis

Douglas D. Gransberg

Geotechnical uncertainty may be the most difficult risk to manage in construction. In design-build (DB), where the project’s price is fixed before design and in many cases the subsurface investigation is complete, the risk profile is fundamentally changed and the owner must address it. This paper assesses the potential of DB as a tool for addressing geotechnical uncertainty in public transportation projects by comparatively evaluating three successful approaches. The first case study involves the use of a geotechnical baseline report as a subsurface condition risk allocation tool. The second uses unit price pay items inside the larger lump sum ...


Performance Bond: Cost, Benefit, And Paradox For The Public Highway Agencies, Heedae Park, Douglas D. Gransberg 2017 Iowa State University

Performance Bond: Cost, Benefit, And Paradox For The Public Highway Agencies, Heedae Park, Douglas D. Gransberg

Douglas D. Gransberg

In the highway industry, one of the main methods to prequalify a contractor is to determine if a performance bond can be secured from a commercial surety. The current performance bonding system does not differentiate between high-performing and marginal contractors. Two companies with the same level of financial assets have the same capability to furnish performance bonds. This paper details an analysis of the benefits and costs of performance bonds and reports the results of a study that used case studies in five state departments of transportation (DOTs): Iowa, Oklahoma, Utah, Virginia, and Washington. Structured interviews were also conducted with ...


Indefinite Delivery-Indefinite Quantity Contracting: A Case Study Analysis, Jorge A. Rueda-Benavides, Douglas D. Gransberg 2017 Iowa State University

Indefinite Delivery-Indefinite Quantity Contracting: A Case Study Analysis, Jorge A. Rueda-Benavides, Douglas D. Gransberg

Douglas D. Gransberg

Indefinite delivery-indefinite quantity (IDIQ) contracts permit a transportation agency to award multiple job orders to a single contractor or a small group of competing contractors; this method eliminates the need to conduct a full procurement for every small construction or maintenance project. During the past few years, this procurement method has been increasingly accepted by state and municipal agencies. However, little research has been conducted to provide guidance on this powerful procurement tool. On the basis of a detailed case study analysis, this paper discusses four models for IDIQ contracting in use by three state departments of transportation and FHWA ...


Life-Cycle Cost-Based Pavement Preservation Treatment Design, Douglas D. Gransberg, Musharraf Zaman, Caleb Riemer 2017 Iowa State University

Life-Cycle Cost-Based Pavement Preservation Treatment Design, Douglas D. Gransberg, Musharraf Zaman, Caleb Riemer

Douglas D. Gransberg

Classic engineering economic theory was developed to furnish the analyst with a tool to compare alternatives on the basis of life-cycle cost (LCC). However, tools used to apply theory to transportation focus on new construction projects with relatively long service lives. These tools do not accurately model the economic aspects of short-lived alternatives such as those that pavement managers must evaluate when seeking the most cost-effective pavement preservation treatment. The field of pavement preservation seeks to "keep good roads good," and hence pavement preservation treatments are applied to extend the functional service life of the underlying pavement. No significant research ...


Cost And Scope Breakdown Structure For Functional Level Estimating Of Consultant Fees, Emily K. Craigie, Douglas D. Gransberg, H. David Jeong 2017 Iowa State University

Cost And Scope Breakdown Structure For Functional Level Estimating Of Consultant Fees, Emily K. Craigie, Douglas D. Gransberg, H. David Jeong

Douglas D. Gransberg

Estimating the cost of preconstruction services (PCSs) during the early phases of highway project development is an important task requiring an increased level of attention. Research has found a link between early investment in PC planning and design services and final project costs. The purpose of this paper is to assess current estimating practices and propose a cost and scope breakdown structure (CSBS) framework to structure functional level estimation of consultant fees. Such a framework is promoted to reduce the chance that underfunded PCSs may degrade postaward construction contract cost certainty. This study found that PCSs were generally viewed as ...


Economic Haul Radius As Affected By Diesel Fuel Cost, Andrew Reynolds, Yashasvi Raj, Douglas D. Gransberg 2017 Iowa State University

Economic Haul Radius As Affected By Diesel Fuel Cost, Andrew Reynolds, Yashasvi Raj, Douglas D. Gransberg

Douglas D. Gransberg

The cost of diesel fuel has remained consistently high and volatile, and the equipment-intensive construction industry has experienced increasing uncertainty in transportation costs. Therefore, this study evaluates the impact of diesel cost volatility on the economic distance for hauling aggregates. The paper proposes the calculation of an economic haul radius to quantify hauling costs over a probabilistic range of diesel prices and thereby quantify the impact of these prices. The literature defines the “economic haul distance” as the point at which the cost of hauling the material equals the supplier cost of the material at the source. The Peurifoy method ...


Policies And Procedures For Successful Implementation Of Alternative Technical Concepts, Ghada M. Gad, Douglas D. Gransberg 2017 Bowling Green State University

Policies And Procedures For Successful Implementation Of Alternative Technical Concepts, Ghada M. Gad, Douglas D. Gransberg

Douglas D. Gransberg

Transportation agencies increasingly allow design–build teams and construction contractors to incorporate alternative technical concepts (ATCs) into proposals for highway projects. The ATC approach allows proposers to suggest modifications to a contract requirement that would result in the project being equal to or better than the design in the solicitation. This paper investigates current procurement policies and presubmittal procedures followed by state transportation agencies in the implementation of ATCs in transportation projects. The paper reports survey results of state departments of transportation (DOTs) that generated responses from 42 state DOTs. These results were compared with a content analysis of solicitation ...


A Framework For Objectively Determining Alternative Contracting Method Best Practices, Douglas D. Gransberg, Eric Scheepbouwer, Carla Lopez del Puerto 2017 Iowa State University

A Framework For Objectively Determining Alternative Contracting Method Best Practices, Douglas D. Gransberg, Eric Scheepbouwer, Carla Lopez Del Puerto

Douglas D. Gransberg

Alternative Contracting Methods (ACM) usage has grown to the point where the industry has sufficient experience to provide a definitive set of best practices to both promote consistency in the nation’s procurement system and to leverage the lessons learned by early ACM adopters. The barrier to achieving this goal is that there is no uniform agreement on the definition of what constitutes a best practice. This paper proposes both an objective definition and a framework for identifying and analyzing ACM practices that have been found to be effective by peer-reviewed research to determine if a given practice deserves to ...


An Assessment Of State Agencies’ Practices In Managing Geotechnical Risks In Design-Build Projects, Ivan Castro-Nova, Ghada M. Gad, Douglas D. Gransberg 2017 Iowa State University

An Assessment Of State Agencies’ Practices In Managing Geotechnical Risks In Design-Build Projects, Ivan Castro-Nova, Ghada M. Gad, Douglas D. Gransberg

Douglas D. Gransberg

State highways agencies policies and procedures for articulating geotechnical information and requirements on Design-Build (DB) projects is a means to manage geotechnical risks. Successful approaches and practices to managing geotechnical risk not only reduce the level of geotechnical uncertainty for both the owner and the competing design-builder, but also distribute the remaining geotechnical risk between the parties. This paper discusses the differences in regard to geotechnical risk management, aspects of the DB procurement process, and contract aspects between state departments of transportation (DOT) with experience delivering projects using DB versus those who are not as experienced. Results are presented from ...


An Exploration Of Early Work Packaging In Construction Manager/General Contractor Highway Projects, Douglas Alleman, Dean Papajohn, Douglas D. Gransberg, Mounir El Asmar, Keith R. Molenaar 2017 University of Colorado, Boulder

An Exploration Of Early Work Packaging In Construction Manager/General Contractor Highway Projects, Douglas Alleman, Dean Papajohn, Douglas D. Gransberg, Mounir El Asmar, Keith R. Molenaar

Douglas D. Gransberg

Recently, state agencies have been successfully implementing construction manager/general contractor (CM/GC) delivery on highway projects. While early work packaging is frequently cited in the literature as a primary benefit of CM/GC, there is limited to substantiate or refute these benefits. Additionally, agencies need a better understanding of the current state-of-practice of early work packing in CM/GC to help with effective implementation. In an ongoing Federal Highway Agency research project, 12 of 34 completed CM/GC projects reported the use early work packaging, and will be the focus of this study. Research methods used within this paper ...


A Comparison Of Qualifications Based-Selection And Best Value Procurement For Construction Manager/General Contractor Highway Construction, Douglas Alleman, Arthur Antoine, Douglas D. Gransberg, Keith R. Molenaar 2017 University of Colorado, Boulder

A Comparison Of Qualifications Based-Selection And Best Value Procurement For Construction Manager/General Contractor Highway Construction, Douglas Alleman, Arthur Antoine, Douglas D. Gransberg, Keith R. Molenaar

Douglas D. Gransberg

Faster project delivery and the infusion of contractor knowledge into design are the primary drivers for choosing construction manager/general contractor (CM/GC) project delivery. This paper focuses on the use of qualifications-based (QBS) and best-value (BV) procurement approaches, how and why agencies use each, and their associated opportunities and obstacles. Data for this study were obtained from a majority of federally funded CM/GC projects completed between 2005 to 2015. The findings are that BV and QBS projects characteristics and performance have no statistically significant difference. The choice of BV or QBS coincides with the agency’s CM/GC ...


Virtual Operator Modeling Approach For Construction Machinery, Yu Du, Michael C. Dorneich, Brian L. Steward, Eric R. Anderson, Lawrence F. Kane, Brian J. Gilmore 2017 Iowa State University

Virtual Operator Modeling Approach For Construction Machinery, Yu Du, Michael C. Dorneich, Brian L. Steward, Eric R. Anderson, Lawrence F. Kane, Brian J. Gilmore

Michael C. Dorneich

Greater understanding of how highly skilled operators achieve high machine performance and productivity can inform the development of automation technology for construction machinery. Current human operator models, however, have limited fidelity and may not be useful for machinery automation. In addition, while physical modeling and simulation is widely employed in product development, current operator simulation models may be a limiting factor in assessing the performance envelope of virtual prototypes. A virtual operator modelling approach for construction machinery was developed. Challenges to the development of human operator models include determining what cues and triggers human operators use, how human operators make ...


Bicp Global Bim Study - Lessons For Ireland’S Bim Programme, Barry McAuley, Alan Hore, Roger West 2017 Dublin Institute of Technology

Bicp Global Bim Study - Lessons For Ireland’S Bim Programme, Barry Mcauley, Alan Hore, Roger West

Reports

The Construction IT Alliance (CitA) has been promoting the benefits of digitisation in the construction and engineering industry in Ireland since its formation back in 2002. Whilst the Alliance has always strived to ensure that its members are exposed to a wide spectrum of contemporary digital tools and processes, the concept of Building Information Modelling (BIM) has dominated the focus of its activities over the past five years.

BIM can be described as a digital tool that facilitates everybody to better understand a building or structure through the use of a digital model which draws on a range of data ...


Bim Assisted Design Process Automation For Pre-Engineered Buildings (Peb), Mohammad Delavar 2017 The University of Western Ontario

Bim Assisted Design Process Automation For Pre-Engineered Buildings (Peb), Mohammad Delavar

Electronic Thesis and Dissertation Repository

The effective adoption and implementation of Building Information Modeling (BIM) is still challenging for the construction industry. However, studies and reports show a significant increase in the rate of BIM implementation and adoption in mainstream construction activities over the last five years. In contrast, Pre-Engineered Building (PEB) construction, a specialized construction system which provides a very efficient approach for construction of primarily industrial buildings, has not seen the same uptake in BIM implementation and adoption. The thesis reviews the benefits and the main applications of BIM for the PEB industry as well as challenges of its practical implementation. To facilitate ...


Road Zipper™, Purdue ECT Team 2017 Construction Engineering & Management, Purdue University

Road Zipper™, Purdue Ect Team

ECT Fact Sheets

Construction work zones are growing in number around the world. The natural aging of existing roadway infrastructure ensures that more and more maintenance and rehabilitation will be required. Work zones, by their very definition, create two major problems that must be addressed in some way: safety and mobility. In the United States, highway work zones are responsible for almost 25% of all non-recurring congestion and 10% of overall congestion. Vehicle accidents are more common in work zones, and traffic congestion through work zones on urban arterials and freeways is often considered to be “unavoidable." To address these issues, ROAD ZIPPER ...


Contractual Approaches To Address Geotechnical Uncertainty In Design-Build Public Transportation Projects, Carla Lopez del Puerto, Douglas D. Gransberg, Michael C. Loulakis 2017 University of Puerto Rico, Mayaguez

Contractual Approaches To Address Geotechnical Uncertainty In Design-Build Public Transportation Projects, Carla Lopez Del Puerto, Douglas D. Gransberg, Michael C. Loulakis

Civil, Construction and Environmental Engineering Publications

Geotechnical uncertainty may be the most difficult risk to manage in construction. In design-build (DB), where the project’s price is fixed before design and in many cases the subsurface investigation is complete, the risk profile is fundamentally changed and the owner must address it. This paper assesses the potential of DB as a tool for addressing geotechnical uncertainty in public transportation projects by comparatively evaluating three successful approaches. The first case study involves the use of a geotechnical baseline report as a subsurface condition risk allocation tool. The second uses unit price pay items inside the larger lump sum ...


Social Return On Investment As A Metric To Prioritize Use Of Accelerated Bridge Construction In Rural Regions, Philip J. Barutha, Ning Zhang, Alice Alipour, Applied Research Associates, Douglas D. Gransberg 2017 Iowa State University

Social Return On Investment As A Metric To Prioritize Use Of Accelerated Bridge Construction In Rural Regions, Philip J. Barutha, Ning Zhang, Alice Alipour, Applied Research Associates, Douglas D. Gransberg

Civil, Construction and Environmental Engineering Conference Presentations and Proceedings

Accelerated Bridge Construction (ABC) techniques have a great potential to minimize the traffic disruptions during the bridge repairs/replacements, promote traffic and worker safety, and improve the overall quality of the built bridges. Despite the major advances in design and construction of ABC techniques, transportation agencies are still hesitant about using ABC techniques largely due to perceived risks during construction and higher initial costs. Furthermore, the current decision process used to prioritize the candidate bridges for this type of construction is oftentimes solely based on metrics such as the average annual daily traffic (AADT). This paper proposes to use a ...


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