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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 ...


Investigation Of Grouted Dowel Connection For Precast Concrete Wall Construction, Douglas J. Provost-Smith 2016 The University of Western Ontario

Investigation Of Grouted Dowel Connection For Precast Concrete Wall Construction, Douglas J. Provost-Smith

Electronic Thesis and Dissertation Repository

The grouted dowel connection is a simple and cost-effective connection used in many precast concrete structural systems. The required dowel length is currently designed as a regular bar in reinforced concrete, which underestimates the bond strength, thus resulting in excessive connection lengths. Furthermore, precast wall construction continues throughout cold weather, where in-situ heating of the grout used in the grouted dowel connections is usually conducted for short periods of time. Hence, early-age exposure to subfreezing conditions may affect the quality of the grout and subsequently the bond strength of the connection, which can compromise structural integrity.

In this thesis, full-scale ...


Solar Urban Planning: Addressing Barriers And Conflicts Specific To Renewable Energy Policy And The Current Field And Practice Of Urban Planning Within The Context Of A Changing Climate, Toryl P. Hanna 2016 SIT Graduate Institute

Solar Urban Planning: Addressing Barriers And Conflicts Specific To Renewable Energy Policy And The Current Field And Practice Of Urban Planning Within The Context Of A Changing Climate, Toryl P. Hanna

Capstone Collection

The world is in a period of rapid urbanization while experiencing unprecedented rise in global temperature as a result of climate change. Questions have been raised as to how strategies for urbanization will be able to address the fetish for energy, while halting carbon emissions produced by traditional energy sources for urban inhabitants around the world. First, this paper seeks to look to cities, at the intersection of solar energy and the field of urban planning, looking into the opportunities and challenges that are currently surfacing. Conflicts and barriers in traditional urban land use patterns emerge as a topic of ...


Concentrations Of Lead In Germany's Tap Water, Kirby E. Townsend 2016 Loyola Marymount University

Concentrations Of Lead In Germany's Tap Water, Kirby E. Townsend

Research & Exhibition

Germany is known for having great tap water. However, since it is an older country, in certain homes and buildings lead piping still exists, and many people are not even aware of this. Because of these pipes, lead can seep into the tap water and have negative impacts on one’s health. This is why I want to measure concentrations of lead in tap water in different areas of Germany to see where lead may be a concern.


Hydraulic And Hydrologic Properties Of The Sabine River, Annie L. Bryant 2016 University of Texas at Tyler

Hydraulic And Hydrologic Properties Of The Sabine River, Annie L. Bryant

Civil Engineering Theses

The Sabine River is located in Northeast Texas and is home to many threatened and endangered species as well as a growing human population. It is important to understand channel properties and flow characteristics of rivers in order better manage these important natural resources. The Sabine was monitored for hydraulic and hydrological properties as this is a poorly understood river at this point in time.

Hydraulic modeling was conducted to determine channel velocities and shear stresses during different storm frequencies. It was found that velocity and shear stress had a direct relationship at lower velocities. A comparison of existing Geographic ...


Lucidpipe™ Power System, Purdue ECT Team 2016 Construction Engineering & Management, Purdue University

Lucidpipe™ Power System, Purdue Ect Team

ECT Fact Sheets

In most gravity fed water transmission pipelines, it is desired to reduce excess pressure head to prevent undue strain on a pipeline and lower the incidence of leaks. Normally this is done with pressure reducing valves that essentially burn off this excess pressure as heat. The LucidPipe™ system converts it to low cost electricity thereby removing unwanted pressure and generating energy at the same time - energy that can be put used behind the grid or put back on the grid. The LucidPipe™ system extracts a small percentage of pressure head providing nearly invisible operation allowing water operators to fulfill their ...


Total Bridge Replacement Of M-13 Over Cheboyganing Creek, Daniel Burns 2016 Western Michigan University

Total Bridge Replacement Of M-13 Over Cheboyganing Creek, Daniel Burns

Honors Theses

The Michigan Department of Transportation sought a proposal consisting of design and construction engineering services for the total bridge replacement of M-13 over Cheboyganing Creek. The M-13 Bridge Project is located on M-13 over Cheboyganing Creek on the Saginaw River in Portsmouth Township, Bay County, Michigan.

Several components of the existing bridge have been rated in poor or serious condition on the National Bridge Inventory rating scale. A total bridge replacement is required and aligns with MDOT strategies to address critical infrastructure needs in the state as well as the Bay Region's five-year plan for managing bridge and culvert ...


In-Plane Loading Of Brick Veneer Over Wood Shear Walls, Elias Anis Toubia, James M. Lintz 2016 University of Dayton

In-Plane Loading Of Brick Veneer Over Wood Shear Walls, Elias Anis Toubia, James M. Lintz

Elias Toubia

In the design of wood stud walls with brick veneer, current design building codes specify that the wood stud wall should resist all in-plane and out-of-plane loads (IBC 2009). For out-of-plane loads, this assumption is entirely justified as the brittle brick veneer will crack and lose its capacity to resist bending. For in-plane loads, the brick veneer is significantly stiffer than the wood shear wall, and the veneer is unlikely to crack before the wood shear wall reaches its allowable capacity. The assumption that the wood shear wall resists the entire load is based on the further assumption that the ...


Development Of Design Loads For Transmission Line Structures Subjected To Downbursts Using Aero-Elastic Testing And Numerical Modeling, Amal Elawady 2016 The University of Western Ontario

Development Of Design Loads For Transmission Line Structures Subjected To Downbursts Using Aero-Elastic Testing And Numerical Modeling, Amal Elawady

Electronic Thesis and Dissertation Repository

The failure of transmission line structures due to severe High Intensity Wind (HIW) events is one of the major problems facing the electrical utility companies in various places around the globe including Canada. An extensive research program focusing on this problem started about fifteen years ago at The University of Western Ontario (UWO). In this Thesis, two major milestones are achieved leading to the advancement of the knowledge in this field. The first milestone is conducting, for the first time, a test on an aero-elastic model of a multi-span transmission system under reduced–scale simulated downbursts. The first objective of ...


The Effects Of Notch Geometry On Fracture Testing Of Asphalt Concrete, Rebekah Porter 2016 University of Arkansas, Fayetteville

The Effects Of Notch Geometry On Fracture Testing Of Asphalt Concrete, Rebekah Porter

Civil Engineering Undergraduate Honors Theses

Asphalt concrete is commonly used as the surface layer on pavements because of its convenience, low cost, and smooth ride (Wagoner, 2005). However, there is a significant problem with the cracking and deterioration of asphalt concrete roads. The initiation of cracking in asphalt must be better understood in order to further improve pavement design. Fracture energy is the amount of energy needed to separate two surfaces. The semi circular bend (SCB) test can be used to measure the fracture energy of asphalt concrete. Currently, this method uses a semicircular specimen with a rectangular notch in a three-point bend compression test ...


Bim Innovation Capability Programme - Irish Bim Study, Barry McAuley, Alan Hore, Roger West 2016 Dublin Institute of Technology

Bim Innovation Capability Programme - Irish Bim Study, Barry Mcauley, Alan Hore, Roger West

Articles

In 2011 the Royal Institute of Architects Ireland (RIAI) conducted a survey which found that BIM adoption within Ireland was quite low at 16%. Over the last five years these figures have risen significantly, with the 2016 Irish Digital Transition Survey reporting that 76% of respondents possess confidence in their organisation’s BIM skills and knowledge. This represents a significant shift of BIM adoption in Ireland over the last five years.

The BIM Innovation Capability Programme (BICP) Irish BIM study, builds on the findings from the BICP Global BIM Study by providing an in depth review of BIM in Ireland ...


Microstructural Analysis Of Thermoelastic Response, Nonlinear Creep, And Pervasive Cracking In Heterogeneous Materials, Alden C. Cook 2016 University of Maine

Microstructural Analysis Of Thermoelastic Response, Nonlinear Creep, And Pervasive Cracking In Heterogeneous Materials, Alden C. Cook

Electronic Theses and Dissertations

This dissertation is concerned with the development of robust numerical solution procedures for the generalized micromechanical analysis of linear and nonlinear constitutive behavior in heterogeneous materials. Although the methods developed are applicable in many engineering, geological, and materials science fields, three main areas are explored in this work. First, a numerical methodology is presented for the thermomechanical analysis of heterogeneous materials with a special focus on real polycrystalline microstructures obtained using electron backscatter diffraction techniques. Asymptotic expansion homogenization and finite element analysis are employed for micromechanical analysis of polycrystalline materials. Effective thermoelastic properties of polycrystalline materials are determined and compared ...


Advancements In Thermal Integrity Profiling Data Analysis, Kevin Russell Johnson 2016 University of South Florida

Advancements In Thermal Integrity Profiling Data Analysis, Kevin Russell Johnson

Graduate Theses and Dissertations

Thermal Integrity Profiling (TIP) is a relatively new non-destructive test method for evaluating the post-construction quality of drilled shafts. Therein anomalies in a shaft are indicated by variations in its thermal profile when measured during the curing stages of the concrete. A considerable benefit with this method is in the ability to detect anomalies both inside and outside the reinforcement cage, as well as provide a measure of lateral cage alignment. Similarly remarkable, early developments showed that the shape of a temperature profile (with depth) matched closely with the shape of the shaft, thus allowing for a straightforward interpretation of ...


Study Of The Regulatory Issues Affecting Truck Freight Movement In The Midwest, Jing Dong, Christopher Albrecht, Patrick Michael Johnson, Micah Keala Makaiwi 2016 Iowa State University

Study Of The Regulatory Issues Affecting Truck Freight Movement In The Midwest, Jing Dong, Christopher Albrecht, Patrick Michael Johnson, Micah Keala Makaiwi

Michael Johnson

This project investigated regulatory issues that may affect or limit freight movement in Iowa and other Midwest states: Illinois, Kansas, Minnesota, Missouri, Nebraska, South Dakota, and Wisconsin. Current state regulations for the following are reviewed and summarized: - Vehicle dimensions - Vehicle weights - Speed limits - Weight compliance enforcement - Fees and taxes - Driver qualifications - Medical certification - Hours of service - Oversize-overweight permits


Study Of The Regulatory Issues Affecting Truck Freight Movement In The Midwest, Jong Dong, Christopher Albrecht, Patrick Michael Johnson, Micah Keala Makaiwi 2016 Iowa State University

Study Of The Regulatory Issues Affecting Truck Freight Movement In The Midwest, Jong Dong, Christopher Albrecht, Patrick Michael Johnson, Micah Keala Makaiwi

Michael Johnson

Reprot Summary:

This project investigated regulatory issues that may affect or limit freight movement in Iowa and other Midwest states: Illinois, Kansas, Minnesota, Missouri, Nebraska, South Dakota, and Wisconsin. Current state regulations for the following are reviewed and summarized:

- Vehicle dimensions

- Vehicle weights

- Speed limits

- Weight compliance enforcement

- Fees and taxes

- Driver qualifications

- Medical certification

- Hours of service

- Oversize-overweight permits


Development Of Railroad Highway Grade Crossing Consolidation Rating Formula, Zachary Hans, Christopher Albrecht, Patrick Michael Johnson, Inya Nlenanya 2016 Iowa State University

Development Of Railroad Highway Grade Crossing Consolidation Rating Formula, Zachary Hans, Christopher Albrecht, Patrick Michael Johnson, Inya Nlenanya

Michael Johnson

The goal of this project was to provide an objective methodology to support public agencies and railroads in making decisions related to consolidation of at-grade rail-highway crossings. The project team developed a weighted-index method and accompanying Microsoft Excel spreadsheet based tool to help evaluate and prioritize all public highway-rail grade crossings systematically from a possible consolidation impact perspective. Factors identified by stakeholders as critical were traffic volume, heavy-truck traffic volume, proximity to emergency medical services, proximity to schools, road system, and out-of-distance travel. Given the inherent differences between urban and rural locations, factors were considered, and weighted, differently, based on ...


Development Of Railroad Highway Grade Crossing Consolidation Rating Formula, Zachary Hans, Christopher Albrecht, Patrick Michael Johnson, Inya Nlenanya 2016 Iowa State University

Development Of Railroad Highway Grade Crossing Consolidation Rating Formula, Zachary Hans, Christopher Albrecht, Patrick Michael Johnson, Inya Nlenanya

Michael Johnson

The goal of this project was to provide an objective methodology to support public agencies and railroads in making decisions related to consolidation of at-grade rail-highway crossings. The project team developed a weighted-index method and accompanying Microsoft Excel spreadsheet based tool to help evaluate and prioritize all public highway-rail grade crossings systematically from a possible consolidation impact perspective. Factors identified by stakeholders as critical were traffic volume, heavy-truck traffic volume, proximity to emergency medical services, proximity to schools, road system, and out-of-distance travel. Given the inherent differences between urban and rural locations, factors were considered, and weighted, differently, based on ...


An Investigation Of Railroad-Highway Grade Crossing Consolidation Rating In Iowa, Patrick Michael Johnson 2016 Iowa State University

An Investigation Of Railroad-Highway Grade Crossing Consolidation Rating In Iowa, Patrick Michael Johnson

Michael Johnson

Railroad-highway grade crossings present unique safety and operational challenges on both the rail and highway side. Consolidation of these crossings can be a valuable tool to improve safety, but is often a source of disagreement among interested parties. In order to better evaluate crossings to determine their suitability to be consolidated, a spreadsheet-based tool was developed to rank all public, at-grade crossings in Iowa using a number of factors related to potential consolidation impacts. The spreadsheet will act as a tool to provide an objective rating of each crossing for use in analysis and negotiation for crossing consolidation. This thesis ...


Study Of The Regulatory Issues Affecting Truck Freight Movement In The Midwest, Jong Dong, Christopher Albrecht, Patrick Michael Johnson, Micah Keala Makaiwi 2016 Iowa State University

Study Of The Regulatory Issues Affecting Truck Freight Movement In The Midwest, Jong Dong, Christopher Albrecht, Patrick Michael Johnson, Micah Keala Makaiwi

Michael Johnson

Reprot Summary: This project investigated regulatory issues that may affect or limit freight movement in Iowa and other Midwest states: Illinois, Kansas, Minnesota, Missouri, Nebraska, South Dakota, and Wisconsin. Current state regulations for the following are reviewed and summarized: - Vehicle dimensions - Vehicle weights - Speed limits - Weight compliance enforcement - Fees and taxes - Driver qualifications - Medical certification - Hours of service - Oversize-overweight permits


Study Of The Regulatory Issues Affecting Truck Freight Movement In The Midwest, Jing Dong, Christopher Albrecht, Patrick Michael Johnson, Micah Keala Makaiwi 2016 Iowa State University

Study Of The Regulatory Issues Affecting Truck Freight Movement In The Midwest, Jing Dong, Christopher Albrecht, Patrick Michael Johnson, Micah Keala Makaiwi

Michael Johnson

This project investigated regulatory issues that may affect or limit freight movement in Iowa and other Midwest states: Illinois, Kansas, Minnesota, Missouri, Nebraska, South Dakota, and Wisconsin. Current state regulations for the following are reviewed and summarized: - Vehicle dimensions - Vehicle weights - Speed limits - Weight compliance enforcement - Fees and taxes - Driver qualifications - Medical certification - Hours of service - Oversize-overweight permits


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