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Infrastructure Technology Institute Publications
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-
- Description:
- Cracking is one of the most common concerns cited by owners of structures adjacent to construction or mining blasting. While a large database of case studies documenting the relative insignificance of ground motion induced by responsible blasting compared to weather effects on cracks in nearby structures has been established, the...
- Keyword:
- Autonomous Crack Measurement
- Creator:
- Charles H. Dowding and Jeffrey E. Meissner
- Owner:
- Chris Diaz
- Date Uploaded:
- 08/14/2017
- Date Modified:
- 08/14/2017
- Date Created:
- 2011
- Resource Type:
- Research Paper
-
- Description:
- This thesis presents the application of Time Domain Reflectometry technology in nine case studies. Presented in detail are cable and grout installation techniques, data acquisition instrumentation and autonomous real time monitoring of soil deformation using TDR. The goal of this work is to summarize the state of the technology in...
- Keyword:
- Structural health monitoring
- Creator:
- Matthieu L. Dussud
- Owner:
- Nurganym Agzamova
- Publisher:
- Northwestern University Libraries
- Language:
- English
- Date Uploaded:
- 07/05/2017
- Date Modified:
- 08/14/2017
- Date Created:
- 2002-12
- Resource Type:
- Masters Thesis
-
- Description:
- This file contains application materials to Crossbow's Smart Dust Challenge Contest by Mat Kotowsky and Hasan Ozer.
- Keyword:
- Structural health monitoring
- Creator:
- Matthew P. Kotowsky and Hasan Ozer
- Owner:
- Nurganym Agzamova
- Publisher:
- Northwestern University Libraries
- Language:
- English
- Date Uploaded:
- 07/05/2017
- Date Modified:
- 08/14/2017
- Date Created:
- 2004-12
- Resource Type:
- Project
-
- Description:
- This file contains the poster on "Wireless Data Acquisition System in Autonomous Crack Monitoring Projects" from Crossbow Smart Dust Challenge created by Mat Kotowsky, Hasan Ozer, and David Kosnik.
- Keyword:
- Structural health monitoring
- Creator:
- David Kosnik , Matthew P. Kotowsky , and Hasan Ozer
- Owner:
- Nurganym Agzamova
- Publisher:
- Northwestern University Libraries
- Language:
- English
- Date Uploaded:
- 07/05/2017
- Date Modified:
- 08/14/2017
- Date Created:
- 2005
- Resource Type:
- Poster
-
- Description:
- Miniaturized, wireless instrumentation is now a reality and this thesis describes development of such a system to monitor crack response. Comparison of environmental (long-term) and blast-induced (dynamic) crack width changes in residential structures has lead to a new approach to monitoring and controlling construction vibrations. In wireless systems transducer power...
- Keyword:
- Structural health monitoring
- Creator:
- Hasan Ozer
- Owner:
- Nurganym Agzamova
- Publisher:
- Northwestern University Libraries
- Language:
- English
- Date Uploaded:
- 07/05/2017
- Date Modified:
- 08/14/2017
- Date Created:
- 2005
- Resource Type:
- Masters Thesis
-
- Description:
- Public concern over construction vibration-induced cracking has led to the development of a radically new approach to vibration, an autonomous crack comparometer (ACC). This thesis chronicles the first step of developing equipment and software necessary for this system. The new system will automatically compare longterm weather induced micrometer changes in...
- Keyword:
- Structural health monitoring
- Creator:
- Damian R. Siebert
- Owner:
- Nurganym Agzamova
- Publisher:
- Northwestern University Libraries
- Language:
- English
- Date Uploaded:
- 07/05/2017
- Date Modified:
- 08/14/2017
- Date Created:
- 2000-06
- Resource Type:
- Masters Thesis
-
- Description:
- This thesis consists of the data and analysis of structural responses for two different studies: the Office of Surface Mining (OSM) study of the velocity response of “atypical” residential structures and the Autonomous Crack Monitoring (ACM) study. The main basis of this thesis was to do additional analysis on a...
- Keyword:
- Structural health monitoring
- Creator:
- Laureen M. McKenna
- Owner:
- Nurganym Agzamova
- Publisher:
- Northwestern University Libraries
- Language:
- English
- Date Uploaded:
- 07/05/2017
- Date Modified:
- 08/14/2017
- Date Created:
- 2002-03
- Resource Type:
- Masters Thesis
-
- Description:
- This appendix synthesizes micrometer changes in crack width in response to both long term (environmental) and transient (blast vibration) of four of the structures in the main body. The appendix begins with a description of the genesis of the study and instruments employed. Response of the distressed wood-framed structure in...
- Keyword:
- Structural health monitoring
- Creator:
- Charles H. Dowding and Laureen M. McKenna
- Owner:
- Nurganym Agzamova
- Publisher:
- Northwestern University Libraries
- Language:
- English
- Date Uploaded:
- 07/05/2017
- Date Modified:
- 08/14/2017
- Date Created:
- 2003
- Resource Type:
- Other
-
- Description:
- Autonomous Crack Measurement (ACM) facilitates simultaneous measurement of crack response to environmental changes and vibrations produced by various construction activities. Dual-purpose crack displacement sensors measure crack response, while the vibration environment is defined by standard seismological transducers and the weather environment is defined as changes in temperature and humidity. This...
- Keyword:
- Structural health monitoring and Cracking of concrete
- Creator:
- Mickey L. Snider
- Owner:
- Nurganym Agzamova
- Publisher:
- Northwestern University Libraries
- Language:
- English
- Date Uploaded:
- 07/05/2017
- Date Modified:
- 08/14/2017
- Date Created:
- 2003-05
- Resource Type:
- Masters Thesis
-
- Description:
- All structures have cosmetic cracks, which have no influence on structural integrity and usually remain unremarked until the structure’s occupants sense ground vibrations. Such vibrations are often associated with engineering activity, but are rarely responsible for cracks. However, this is difficult to prove without scientific basis. Automated Crack Monitoring (ACM)...
- Keyword:
- Structural health monitoring and Cracking of concrete
- Creator:
- Markian B. Petrina
- Owner:
- Nurganym Agzamova
- Publisher:
- Northwestern University Libraries
- Language:
- English
- Date Uploaded:
- 07/05/2017
- Date Modified:
- 08/14/2017
- Date Created:
- 2004-08
- Resource Type:
- Masters Thesis
-
- Description:
- This thesis summarizes two further developments of the Autonomous Crack Monitoring (ACM) system, which facilitates simultaneous measurement of crack response to environmental changes and various dynamic events. The first component was measurement of crack responses in three different materials and locations in a residential structure subjected to ground vibrations produced...
- Keyword:
- Structural health monitoring
- Creator:
- Mike J. Waldron
- Owner:
- Nurganym Agzamova
- Publisher:
- Northwestern University Libraries
- Language:
- English
- Date Uploaded:
- 07/05/2017
- Date Modified:
- 08/14/2017
- Date Created:
- 2006-06
- Resource Type:
- Masters Thesis
-
- Description:
- A unique judicial opportunity allowed measurement of the response of three cracks in residential structure to blasting for underground aggregate mining. Instrumented cracks were located in the interior basement CMU mortar and upstairs dry wall as well as exterior brick work. The dynamic environment was unusual. Even though the blasting...
- Keyword:
- Structural health monitoring and Cracking of concrete
- Creator:
- Mike Waldron, G.F. Revey, and C.H. Dowding
- Owner:
- Nurganym Agzamova
- Publisher:
- Northwestern University Libraries
- Language:
- English
- Date Uploaded:
- 07/05/2017
- Date Modified:
- 08/14/2017
- Date Created:
- 2007
- Resource Type:
- Research Paper
-
- Description:
- This paper describes the technology and methods deployed in the continuous autonomous remote monitoring of cracks in interior and exterior walls of a residence near a limestone quarry. The object is to quantitatively compare crack response to blast-induced ground motion to that induced by diurnal temperature changes, weather fronts, and...
- Keyword:
- Cracking of concrete and Structural health monitoring
- Creator:
- David E. Kosnik
- Owner:
- Nurganym Agzamova
- Publisher:
- Northwestern University Libraries
- Language:
- English
- Date Uploaded:
- 07/05/2017
- Date Modified:
- 08/14/2017
- Date Created:
- 2008-03-21
- Resource Type:
- Research Paper
-
- Description:
- Cosmetic and structural cracks are a large concern for homeowners. Although these cracks can develop from a variety of causes: differential foundation settlement, occupant activity, climatological effects, as well as dynamic events, people tend to look to dynamic events like blasting, construction, or traffic vibrations to be the culprit. This...
- Keyword:
- Crack responses , Structural integrity assessment , and Ground motions
- Creator:
- Jeffrey Meissner and Charles H. Dowding
- Owner:
- Nurganym Agzamova
- Publisher:
- Northwestern University Libraries
- Language:
- English
- Date Uploaded:
- 07/05/2017
- Date Modified:
- 08/14/2017
- Date Created:
- 2009
- Resource Type:
- Report
-
- Description:
- This appendix contains all software used to program the MICA2 motes for Version 1 of the MICA2-based wireless ACM system. This appendix is organized by software directory and only the modified files are included.
- Keyword:
- Structural health monitoring , Wireless sensor networks , and Source code
- Creator:
- Matthew P. Kotowsky
- Owner:
- Nurganym Agzamova
- Publisher:
- Northwestern University Libraries
- Date Uploaded:
- 07/05/2017
- Date Modified:
- 08/14/2017
- Date Created:
- 2010
- Resource Type:
- Software or Program Code
-
- Description:
- Autonomous Crack Monitoring (ACM) and Autonomous Crack Propagation Sensing (ACPS) are two types of structural health monitoring in which characteristics of cracks are recorded over long periods of time. ACM seeks to correlate changes in widths of cosmetic cracks in structures to nearby blasting or construction vibration activity for the...
- Keyword:
- Structural health monitoring and Wireless sensor networks
- Creator:
- Matthew P. Kotowsky
- Owner:
- Nurganym Agzamova
- Publisher:
- Northwestern University Libraries
- Language:
- English
- Date Uploaded:
- 07/05/2017
- Date Modified:
- 08/14/2017
- Date Created:
- 2010
- Resource Type:
- Masters Thesis
-
- Description:
- An .xls file with data for the project on "Minimizing Shrinkage, Creep and Cracking Damage to Concrete Bridges (A423, A447)", 2010.
- Keyword:
- Dataset
- Creator:
- Qiang Yu
- Owner:
- Nurganym Agzamova
- Publisher:
- Northwestern University Libraries
- Language:
- English
- Date Uploaded:
- 06/22/2017
- Date Modified:
- 08/14/2017
- Date Created:
- 2010
- Resource Type:
- Dataset
-
- Description:
- An .xls file with data for the project on "Minimizing Shrinkage, Creep and Cracking Damage to Concrete Bridges (A423, A447)", 2010.
- Keyword:
- Dataset
- Creator:
- Kyung-Tae Kim
- Owner:
- Nurganym Agzamova
- Publisher:
- Northwestern University Libraries
- Language:
- English
- Date Uploaded:
- 06/22/2017
- Date Modified:
- 08/14/2017
- Date Created:
- 2010
- Resource Type:
- Dataset
-
- Description:
- The finite element method is used to investigate failure mechanisms in pin-hanger connection in aging highway bridges. Bridge pins and hangers are typically considered as critical elements whose failure may result in partial or entire collapse of the structure. The primary function of a pin-hanger connection is to allow for...
- Keyword:
- Structural integrity assessment
- Creator:
- Houcque, David
- Owner:
- Nurganym Agzamova
- Publisher:
- Northwestern University Libraries
- Language:
- English
- Date Uploaded:
- 06/22/2017
- Date Modified:
- 08/14/2017
- Date Created:
- 2008-06
- Resource Type:
- Dissertation
-
- Description:
- This report includes the findings of acoustic emission (AE) tests on the Fremont tied arch bridge in Portland Oregon conducted by research engineers from the Infrastructure Technology Institute of Northwestern University on March 24th, 1997.
- Keyword:
- Acoustic emission testing
- Creator:
- Prine, David
- Owner:
- Nurganym Agzamova
- Publisher:
- Northwestern University Libraries
- Language:
- English
- Date Uploaded:
- 06/21/2017
- Date Modified:
- 08/14/2017
- Date Created:
- 1997
- Resource Type:
- Report
-
- Description:
- Gentrification - the process in which higher income (and often younger) households displace lower income residents of a city neighborhood - has been occurring in many urban neighborhoods over the last few decades. This process changes the demographics, and often the essential character, of the neighborhood. As a result, we...
- Keyword:
- Gentrification and Urban transportation
- Creator:
- Emily R. Kushto and Joseph L. Schofer
- Owner:
- Nurganym Agzamova
- Publisher:
- Northwestern University Libraries
- Language:
- English
- Date Uploaded:
- 07/19/2017
- Date Modified:
- 08/14/2017
- Date Created:
- 2008-01-10
- Resource Type:
- Research Paper
-
- Description:
- Mining near the town of Blanford, Indiana for a number of years has led to an opportunity for Peabody Coal Company to study and compare environmental and blast effects. Such a comparison allows description of any blast effects relative to those caused by common environmental changes, which should be familiar...
- Keyword:
- Structural health monitoring
- Creator:
- Charles H. Dowding and Spencer W. Lucole
- Owner:
- Nurganym Agzamova
- Publisher:
- Northwestern University Library
- Language:
- English
- Date Uploaded:
- 07/05/2017
- Date Modified:
- 08/14/2017
- Date Created:
- 1988-01-28
- Resource Type:
- Report