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Prestress Losses And Temperature Effects On A Deck Bulb Tee Girder Bridge, Phillip Powelson 2017 Utah State University

Prestress Losses And Temperature Effects On A Deck Bulb Tee Girder Bridge, Phillip Powelson

All Graduate Theses and Dissertations

The Utah Transportation Center (UTC), in partnership with the Mountain Plains Consortium (MPC), sponsored a study to investigate the differences in prestress losses and temperature gradients in a concrete deck bulb tee girder bridge. The Millville Bridge was built as an access point to the Ridgeline High School in Millville, Utah. The bridge was built in 2016 and presently supports two lanes of traffic.

Changes in prestress were measured with a total of 16 vibrating wire strain gauges located at four cross-sections. Temperature gradients were measured with a total of 50 thermocouples located at five cross-section locations, four of which ...


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 ...


Iowa Pavement Asset Management Decision-Making Framework, Ahmed Abdelaty, H. David Jeong, Omar G. Smadi, Douglas D. Gransberg 2017 Iowa State University

Iowa Pavement Asset Management Decision-Making Framework, Ahmed Abdelaty, H. David Jeong, Omar G. Smadi, Douglas D. Gransberg

Douglas D. Gransberg

Most local agencies in Iowa currently make their pavement treatment decisions based on their limited experience due primarily to lack of a systematic decision-making framework and a decision-aid tool. The lack of objective condition assessment data of agency pavements also contributes to this problem. This study developed a systematic pavement treatment selection framework for local agencies to assist them in selecting the most appropriate treatment and to help justify their maintenance and rehabilitation decisions. The framework is based on an extensive literature review of the various pavement treatment techniques in terms of their technical applicability and limitations, meaningful practices of ...


Iowa Pavement Asset Management Decision-Making Framework, Ahmed Abdelaty, H. David Jeong, Omar G. Smadi, Douglas D. Gransberg 2017 Iowa State University

Iowa Pavement Asset Management Decision-Making Framework, Ahmed Abdelaty, H. David Jeong, Omar G. Smadi, Douglas D. Gransberg

Douglas D. Gransberg

Most local agencies in Iowa currently make their pavement treatment decisions based on their limited experience due primarily to lack of a systematic decision-making framework and a decision-aid tool. The lack of objective condition assessment data of agency pavements also contributes to this problem. This study developed a systematic pavement treatment selection framework for local agencies to assist them in selecting the most appropriate treatment and to help justify their maintenance and rehabilitation decisions. The framework is based on an extensive literature review of the various pavement treatment techniques in terms of their technical applicability and limitations, meaningful practices of ...


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 ...


Asset Management Program Enhancement Plan: Baseline Assessment Phases I And Ii, Douglas D. Gransberg, Susan L. Tighe, Maria Catalina Miller 2017 Iowa State University

Asset Management Program Enhancement Plan: Baseline Assessment Phases I And Ii, Douglas D. Gransberg, Susan L. Tighe, Maria Catalina Miller

Douglas D. Gransberg

This project resulted in the development of a framework for making asset management decisions on low-volume bridges. The research focused on low-volume bridges located in the agricultural counties of Iowa because recent research has shown that these counties have the greatest percentage of structurally deficient bridges in the nation. Many of the same counties also have the highest crop yields in the state, creating a situation where detours caused by deficient bridges on farm-to-market roads increase the cost to transport the crops. Thus, the research proposed the use of social return on investment (SROI), a tool used by international institutions ...


Asset Management Program Enhancement Plan: Baseline Assessment Phases I And Ii, Douglas D. Gransberg, Susan L. Tighe, Maria Catalina Miller 2017 Iowa State University

Asset Management Program Enhancement Plan: Baseline Assessment Phases I And Ii, Douglas D. Gransberg, Susan L. Tighe, Maria Catalina Miller

Douglas D. Gransberg

This project resulted in the development of a framework for making asset management decisions on low-volume bridges. The research focused on low-volume bridges located in the agricultural counties of Iowa because recent research has shown that these counties have the greatest percentage of structurally deficient bridges in the nation. Many of the same counties also have the highest crop yields in the state, creating a situation where detours caused by deficient bridges on farm-to-market roads increase the cost to transport the crops. Thus, the research proposed the use of social return on investment (SROI), a tool used by international institutions ...


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 ...


Addressing Data Challenges For Bicycle Crash Analysis, Eleni Christofa 2017 University of Massachusetts Amherst

Addressing Data Challenges For Bicycle Crash Analysis, Eleni Christofa

TREC Friday Seminar Series

Although an increasing number of separated bicycle facilities have been appearing across the US over the last few years, the majority of bicyclists are still traveling on roadways shared with motorized vehicles.

As a result, bicycles are essentially double exposed to safety risk, due to their interactions with both motorized vehicles and other bicycles. In addition to this double exposure, data challenges–such as a lack of continuous counts and bicycle crash data—complicate the assessment of bicycle safety further.

This research presents a bicycle crash analysis framework for estimating bicycle crash rates accounting for both bicycle and motorized vehicle ...


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