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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 ...


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 ...


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 ...


Novel Nanocomposite Technologies For Dynamic Monitoring Of Structures: A Comparison Between Cement-Based Embeddable And Soft Elastomeric Surface Sensors, Filippo Ubertini, Simon Laflamme, Halil Ceylan, Annibale L. Materazzi, Gianluca Cerni, Hussam Saleem, Antonella D'Alessandro, Alessandro Corradini 2016 University of Perugia

Novel Nanocomposite Technologies For Dynamic Monitoring Of Structures: A Comparison Between Cement-Based Embeddable And Soft Elastomeric Surface Sensors, Filippo Ubertini, Simon Laflamme, Halil Ceylan, Annibale L. Materazzi, Gianluca Cerni, Hussam Saleem, Antonella D'Alessandro, Alessandro Corradini

Simon Laflamme

The authors have recently developed two novel solutions for strain sensing using nanocomposite materials. While they both aim at providing cost-effective solutions for the monitoring of local information on large-scale structures, the technologies are different in their applications and physical principles. One sensor is made of a cementitious material, which could make it suitable for embedding within the core of concrete structures prior to casting, and is a resistor, consisting of a carbon nanotube cement-based transducer. The other sensor can be used to create an external sensing skin and is a capacitor, consisting of a flexible conducting elastomer fabricated from ...


Bio-Based Soft Elastomeric Capacitor For Structural Health Monitoring Applications, Sari Kharroub, Simon Laflamme, Samy Madbouly, Filippo Ubertini 2016 Iowa State University

Bio-Based Soft Elastomeric Capacitor For Structural Health Monitoring Applications, Sari Kharroub, Simon Laflamme, Samy Madbouly, Filippo Ubertini

Simon Laflamme

Recent advances in flexible electronics have enabled the development of large-area electronics, which are typically fabricated from petroleum-based polymers. With the rapidly growing market of flexible electronics and sensors, there is a pressure to move toward environmentally friendly products. In this article, a bio-based polyurethane soft elastomeric capacitor for structural health monitoring applications is presented. The sensor’s dielectric is fabricated using castor oil–based waterborne polyurethane, mixed with titanium dioxide, which replaces petroleum-based dielectric materials (e.g. styrene-ethylene/butylene-styrene) previously used by the authors. A critical advantage of the proposed castor oil–based polyurethane over styrene-ethylene/butylene-styrene is the ...


Dynamic Characterization Of A Soft Elastomeric Capacitor For Structural Health Monitoring, Simon Laflamme, Filippo Ubertini, Hussam Saleem, Antonella D'Alessandro, Austin R.J. Downey, Halil Ceylan, Annibale L. Materazzi 2016 Iowa State University

Dynamic Characterization Of A Soft Elastomeric Capacitor For Structural Health Monitoring, Simon Laflamme, Filippo Ubertini, Hussam Saleem, Antonella D'Alessandro, Austin R.J. Downey, Halil Ceylan, Annibale L. Materazzi

Simon Laflamme

Structural health monitoring of civil infrastructures is a difficult task, often impeded by the geometrical size of the monitored systems. Recent advances in conducting polymers enabled the fabrication of flexible sensors capable of covering large areas, a possible solution to the monitoring challenge of mesoscale systems. The authors have previously proposed a novel sensor consisting of a soft elastomeric capacitor (SEC) acting as a strain gauge. Arranged in a network configuration, the SECs have the potential to cover very large surfaces. In this paper, understanding of the proposed sensor is furthered by evaluating its performance at vibration-based monitoring of large-scale ...


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 ...


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 ...


I-94 Advanced Bridge Replacement, Saleem Alsharari 2016 Western Michigan University

I-94 Advanced Bridge Replacement, Saleem Alsharari

Honors Theses

The Michigan Department of Transportation has always felt the need of improving and increasing the capacity of the most critical highway in the state of Michigan, I-94. Part of the improvement plan is to increase the capacity of a 6-mile segment along a corridor of I-94 from French Avenue to Trumbull Avenue which is in a suburban neighborhood of Detroit. There are eight bridges built in the 1950’s that need to be re-constructed for a capacity increase. Vehicular and non-motorized traffic must be accounted for in the design of these bridges. The project is intended to increase the service ...


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 ...


Characterization And Delineation Of Karst Geohazards Along Rm652 Using Electrical Resistivity Tomography, Culberson County, Texas, Adam F. Majzoub 2016 Stephen F Austin State University

Characterization And Delineation Of Karst Geohazards Along Rm652 Using Electrical Resistivity Tomography, Culberson County, Texas, Adam F. Majzoub

Electronic Theses and Dissertations

The Delaware Basin of West Texas and southeastern New Mexico is the major western subdivision of the Permian Basin and a northern extension of the Chihuahuan Desert. The major evaporite unit within the Delaware Basin is the Castile Formation, which consists of gypsum/anhydrite and is highly susceptible to dissolution and karsting. Manifestations of karst within the Castile outcrop are abundant and include sinkholes, subsidence features and caves, both epigene and hypogene in origin.

Land reconnaissance surveys conducted during the summer of 2015 documented abundant karst landforms in close proximity to a major thoroughfare, RM 652, in Culberson County, Texas ...


Outsourcing Of Building Information Modeling (Bim) Among General Contractors In The United States, James W. Fountain 2016 The University of Southern Mississippi

Outsourcing Of Building Information Modeling (Bim) Among General Contractors In The United States, James W. Fountain

Honors Theses

Building Information Modeling (BIM) is a process used by AEC industry members that simulates a construction project in a multidimensional digital model and provides multitudes of project benefits from inception to occupancy. However, a variety of barriers impede a holistic BIM implementation. Because of these barriers, some general contractors are choosing to outsource the creation and/or utilization of BIM models to specialized Information Technology (IT) firms instead of performing these processes in-house. Since little literature currently exists for BIM outsourcing, this online survey-based study aimed to identify BIM outsourcing patterns among the general contractors across the US and the ...


Analysis Of Transit Accessibility For People With Disabilities, Rostam Khalid Mohammed Ameen Qatra 2016 Western Michigan University

Analysis Of Transit Accessibility For People With Disabilities, Rostam Khalid Mohammed Ameen Qatra

Master's Theses

The inconvenience of public transit systems and unavailability of bus stops in the United States has resulted in a heavy reliance on the private automobile. One of the main issues in transit services is accessibility, particularly for people with disabilities. This research is intended to compare estimated job accessibility measures by transit in Kalamazoo county for workers with reduced physical mobility and without. Using OpenTripPlanner (OTP) software, General Transit Feed Specification (GTFS), Open Street Map (OSM) and Longitudinal Employer-Housing Dynamics (LODES) data were analyzed to estimate job accessibility for people with mobility constraints. By using the shortest tree path method ...


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 ...


Occupancy Estimation In Smart Building Using Hybrid Co2/Light Wireless Sensor Network, Chen Mao, Qian Huang 2016 Department of Electrical and Computer

Occupancy Estimation In Smart Building Using Hybrid Co2/Light Wireless Sensor Network, Chen Mao, Qian Huang

ASA Multidisciplinary Research Symposium

Smart building, which delivers useful services to residents at lowest cost and maximum comfort, has gained increasing attention in recent years. A variety of emerging information technologies have been adopted in modern buildings, such as wireless sensor networks, internet of things, big data analytics, deep machine learning, etc. Most people agree that a smart building should be energy efficient, and consequently, much more affordable to building owners. Building operation accounts for major portion of energy consumption in the United States. HVAC (heating, ventilating, and air conditioning) equipment is a particularly expensive and energy consuming of building operation. As a result ...


Interdisciplinary, Collaborative International Service Learning: Developing Engineering Students As Global Citizens, Anthony D. Songer, Karen R. Breitkreuz 2016 Boise State University

Interdisciplinary, Collaborative International Service Learning: Developing Engineering Students As Global Citizens, Anthony D. Songer, Karen R. Breitkreuz

Karen R. Breitkreuz

Recent calls to reform engineering education place emphasis on applied math and science within the broader context of globalization, economics, the environment, and society. This broad and complex challenge necessitates the investigation of new interdisciplinary education approaches for engineering education. This paper presents a formal approach for developing engineering students as global citizens. The 360 Degree Model for Educating Socially Responsible Global Citizens (360 Global Ed model) presented herein includes a framework for foundational theory, educational environment, academic coursework, and outcomes. At the core of the emerging model is an international service learning experience called the Village Network. The Village ...


Using Building Information Modeling (Bim) And The Last Planner System (Lps) To Reduce Construction Process Delay, Zaid K. AI Hussein 2016 Western Kentucky University

Using Building Information Modeling (Bim) And The Last Planner System (Lps) To Reduce Construction Process Delay, Zaid K. Ai Hussein

Masters Theses & Specialist Projects

The construction industry suffers from many practical problems and challenges; most being related to construction management. One of the most common recurring problems in construction projects is delay. Delay is a primary factor that can have an effect on project duration, scheduled delivery date, as well as the overhead cost of the project. This study investigated the problem of delays in construction projects. The research focused on the combination of Building Information Modeling (BIM) and Last Planner System (LPS) together to measure the execution time of construction projects. The aim of this study was to determine whether using BIM and ...


Comparison Of Lean Construction In India And United States Of America, Vedangi Mahashabde 2016 Western Kentucky University

Comparison Of Lean Construction In India And United States Of America, Vedangi Mahashabde

Masters Theses & Specialist Projects

The concept of Lean Construction has been introduced successfully into the Construction Industry to increase efficiency and profit by elimination of non-value adding activities or ‘Waste’. Lean Construction is an adaptation of Lean manufacturing principles and is the future of the Construction Industry in developing as well as developed countries. There has been much study and documentation conducted on ‘Lean Construction’ in USA. Even though people have started practicing Lean in India, there is lack of documented information available about it. Professionals within the Industry could already be minimizing ‘Waste’ and/or following Lean principles without the knowledge of the ...


Exploring Factors Contributing To Injury Severity At Freeway Merging And Diverging Locations In Ohio, Worku Y. Mergia, Deogratias Eustace, Deo Chimba, Maher Butros Qumsiyeh 2016 Geotest Engineering, Houston, Texas

Exploring Factors Contributing To Injury Severity At Freeway Merging And Diverging Locations In Ohio, Worku Y. Mergia, Deogratias Eustace, Deo Chimba, Maher Butros Qumsiyeh

Maher Qumsiyeh

Identifying factors that affect crash injury severity and understanding how these factors affect injury severity is critical in planning and implementing highway safety improvement programs. Factors such as driver-related, traffic-related, environment-related and geometric design-related were considered when developing statistical models to predict the effects of these factors on the severity of injuries sustained from motor vehicle crashes at merging and diverging locations. Police-reported crash data at selected freeway merging and diverging areas in the state of Ohio were used for the development of the models. A generalized ordinal logit model also known as partial proportional odds model was applied to ...


Bicp Global Bim Study, Barry McAuley, Alan Hore, Roger West 2016 Dublin Institute of Technology

Bicp Global Bim Study, Barry Mcauley, Alan Hore, Roger West

Articles

The BICP is a direct response to the 2014 Construction 2020 report calling on Enterprise Ireland to work with industry organisations to promote the use of BIM and develop the appropriate technical skills amongst Irish construction firms so that they can successfully compete in markets where BIM is widely adopted or a requirement. There are four distinct work packages to achieve the strategic objectives of the BICP which include amongst other things a systematic review of BIM adoption in international regions, with particular focus on the enablers to support national implementation programmes. This study focused on exploring the value proposition ...


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