Civil and Environmental Engineering Commons^™

Bridge Lock-Up Device System, Purdue Ect Team

ECT Fact Sheets Archive

The Colebrand Lock-up Device (LUD) provides additional substructure strength to resist seismic forces as a structural shock transmission unit for highway bridges. This system can provide a temporary rigid link between bridge structural members under seismic, braking, or other fast-acting type loads, while permitting slow thermal movements.

Primecontract.Com, Purdue Ect Team

ECT Fact Sheets Archive

The PrimeContract.com network is based on a three-tier software architecture using JAVA in a UNIX environment. The network is designed to effortlessly accommodate large numbers of users in an extremely secure environment.

Prosidyc: Simulation Program For Construction Operations, Purdue Ect Team

ECT Fact Sheets Archive

PROSIDYC is a system for simulating construction operations jointly developed by the Planning and Methods Unit of Dragados y Construcciones, Madrid, Spain and the Division of Construction Engineering & Management at Purdue University. PROject SImulation Dragados Y Construcciones (PROSIDYC) is a computer based system for analyzing construction job site production processes. It is used to improve productivity in the field by studying resource utilization and cycle times and identifying opportunities for production improvement. PROSIDYC uses the CYCLic Operations NEtwork (CYCLONE) modeling format originally developed by Daniel W. Halpin

An Industrial Gas Turbine/Compressor Package Designed For Rapid Installation And Commissioning, Purdue Ect Team

ECT Fact Sheets Archive

A reduction in both the time and the cost of installation of medium-to-large industrial gas turbine mechanical drive packages can be achieved. Integration of the gas turbine driver, driven equipment, and ancillaries on two easily-assembled skids is made possible by the application of several technological developments, including aeroderivative gas turbine engines, dry gas compressor seals, compact plate-type heat exchangers, variable-speed AC motor drives, and microprocessor-based control systems which are certified for hazardous environments. By minimizing the need for interconnection of piping and wiring between multiple equipment and controls locations, site installation and commissioning time is drastically reduced. This can result …

Stroboscope, Purdue Ect Team

ECT Fact Sheets Archive

STROBOSCOPE is an acronym for STate and Resource Based Simulation of COnstructionProcEsses. It is a general-purpose simulation programming language that has been designed for the simulation of very complex construction processes that involve many different types of resources. STROBOSCOPE models are based on a network of interconnected modeling elements and on a series of programming statements that give the elements unique behavior and control the simulation.

Site Characterization And Analysis Penetrometer System (Scaps) : Assessing Site Cotamination, Purdue Ect Team

ECT Fact Sheets Archive

While a number of techniques exist for the remediation of contaminated soils, one of the largest problems is often the initial site assessment. It can be a difficult, expensive and time-consuming process to determine the exact extent of site contamination. The U.S. Army Engineer Waterways Experiment Station (WES) under the sponsorship of the U.S. Army Environmental Center (AEC) initiated the development of the Site Characterization and Analysis Penetrometer System (SCAPS) Research, Development, and Technology Demonstration Program to provide the Department of Defense (DoD) with a rapid and cost-effective means to characterize soil conditions at DoD sites undergoing installation restoration (cleanup).

3d Laser Scanning & Modeling System, Purdue Ect Team

ECT Fact Sheets Archive

Traditional methods of measuring and modeling the surface geometry of large, complex structures or sites that require engineering or survey-grade accuracy are often inaccurate, incomplete or expensive. Inaccurate or incomplete drawings and models often lead to costly construction errors or delays. A portable, auto-scanning laser and PC system that lets users economically obtain accurate, complete, and timely as-built geometry information for large structures and sites. The system can remotely measure natural surfaces up to 100m away at the speed of 800 points per second. With spacing between adjacent points as fine as 1mm, users can capture an extremely high level …

Real Time Positioning, Purdue Ect Team

ECT Fact Sheets Archive

Construction operations involve location and positioning elements in the field. There are two primary components to the system; transmitters and receivers. The system allows multiple users to work at the same time once the system is set up. These users can include surveyors, craft people, and equipment operators each of whom is working concurrently and using the positioning system to capture accurate real-time position information about the work environment.

Extraction Of Contaminated Soil Using High Pressure Jet Grouting, Purdue Ect Team

ECT Fact Sheets Archive

Removal of contaminated soil underneath existing structures causes settlement. There is a need for a remediation technology that eliminates this problem. The jet grouting by the triple rod system can be combined with an on site remediation technology (e.g., soil washing). Jet grouting was developed primarily for underpinning and/or excavation support. The benefits of this technology lie in the future reduction of structural settlement, and site access flexibility.

Mechanically Stabilized Earth Wall Abutments For Bridge Support, Ioannis Zevgolis, Philippe L. Bourdeau

JTRP Technical Reports

The research is an investigation on the possible use of MSE bridge abutments as direct support of bridges on Indiana highways. First, analysis was performed following conventional design methods, in order to assess the performance of MSE bridge abutments with respect to ultimate limit states, i.e. external and internal stability. In the second part of the study, finite element analysis was performed, in order to assess the performance of the structures with respect to serviceability limit states, i.e. immediate and consolidation settlements. In both parts, analysis was performed on case examples that reflect relatively typical situations. The main findings confirm …

Effective And Robust Coordination Of Traffic Signals On Arterial Streets, Volume 1, Research Report, Wei Li, Andrew P. Tarko

JTRP Technical Reports

Many transportation agencies use Synchro and SimTraffic software package to optimize signal coordination. In general, this software package effectively reduces the efforts of traffic systems engineers and improves the quality of the designed coordination. Nevertheless, the initial solutions given by the software packages usually require adjustment, at both the design and implementation stages. The major objective of this research, therefore, is to reduce the time and effort needed in solution tuning and thus to improve the effectiveness and the efficiency of using Synchro/SimTraffic in arterial signal coordination design. The research outcome is expected to help traffic systems engineers reach reasonable …

Bs News

Building Services Engineering

No abstract provided.

Efficacy Of Removal Of Ccl Viruses Under Enhanced Coagulation Conditions, Morteza Abbaszadegan, Brooke K. Mayer, Hodon Ryu, Nena Nwachuku

Civil and Environmental Engineering Faculty Research and Publications

The focus of coagulation as a water treatment process is shifting to accommodate recent regulatory additions that strive to balance the risks between microbial and chemical contamination of drinking water. In this work, enhanced coagulation using increased ferric chloride dose and/or pH adjustment was evaluated for removal efficacy of viruses on the United States Environmental Protection Agency (USEPA) Contaminant Candidate List (CCL), their surrogates, and dissolved organic carbon (DOC). Jar tests demonstrated that optimal DOC removal was achieved using 40 mg/L FeCl₃ at a pH between 5 and 6. Under these conditions, bench-scale testing resulted in a maximum removal …

A Prescriptive Analysis Of The Indiana Coal Transportation Infrastructure, Thomas F. Brady, Chad M. Pfitzer

JTRP Technical Reports

This report presents the findings of a scoping study of Indiana’s coal transportation infrastructure. Throughout the literature search and investigative phases of this project, it was clear that there exists growing awareness of the importance that transportation plays in the domestic coal industry. There is evidence that suggests transportation costs may be higher than the cost of mining coal. Numerous studies suggest that coal transportation can be developed and utilized for significant competitive economic advantage. The Powder River Basin area in Wyoming is a stellar example of how the combination of a large natural resource and careful transportation planning can …

A Study Of Effective Soil Compaction Control Of Granular Soils, Vincent P. Drnevich, Aaron C. Evans, Adam Buser Prochaska

JTRP Technical Reports

Although it is known that impact compaction tests are not appropriate for granular soils, these tests continue to be widely used. Excessive settlements frequently occur in granular soils where specified field compaction is based on Standard Proctor (ASTM D 698; AASHTO T 99) maximum dry unit weights. A laboratory test program evaluated alternative test methods for granular soil compaction control and showed that a Vibrating Hammer method (similar to British Standard BS 1377:1975, Test 14) has great promise for laboratory compaction of these soils. A One-Point Vibrating Hammer test on an oven-dry soil sample is able to provide the maximum …

Effective And Robust Coordination Of Traffic Signals On Arterial Streets, Volume 2, Guidelines Of Design, Wei Li, Andrew P. Tarko

JTRP Technical Reports

Many transportation agencies use Synchro and SimTraffic software package to optimize signal coordination. In general, this software package effectively reduces the efforts of traffic systems engineers and improves the quality of the designed coordination. Nevertheless, the initial solutions given by the software packages usually require adjustment, at both the design and implementation stages. The major objective of this research, therefore, is to reduce the time and effort needed in solution tuning and thus to improve the effectiveness and the efficiency of using Synchro/SimTraffic in arterial signal coordination design. The research outcome is expected to help traffic systems engineers reach reasonable …

Long-Term Effects Of Super Heavy-Weight Vehicles On Bridges, Scott M. Wood, Necip Onder Akinci, Judy Liu, Mark D. Bowman

JTRP Technical Reports

A permit truck which exceeds the predefined limit of 108 kips is defined as a superload in Indiana. This study was conducted to examine the long-term effects of superload trucks on the performance of typical slab-on-girder bridges and to assess the likelihood of causing immediate damage. Typical steel and prestressed concrete slab-on-girder type bridges were analyzed using both beam line analysis and detailed finite element models. Furthermore, one prestressed concrete bridge and one steel bridge were instrumented using more than 50 sensors each. Strains and deflections were measured during a live load test, and each bridge was monitored for more …

Synthesis Study: Heat Treatment And Its Effects On Rehabilitating Steel Bridges In Indiana, Matthew Lackowski, Amit Varma

JTRP Technical Reports

The literature review of prior heat straightening research indicated that significant research has been conducted on the development of: (i) heat straightening repair techniques and their field implementation, (ii) guidelines and recommendations for heat straightening repair, (iii) empirical procedures for estimating plastic rotations achieved during heat straightening, (iv) empirical procedures for predicting residual stresses caused by heat straightening, and (v) the effects of heat straightening on the structural properties of repaired bridges. Currently, there is a need for additional research on: (a) the fatigue performance of heat straightened beams, (ii) the effects of single and multiple heat straightening on the …

Safety Conscious Planning In Indiana: Predicting Safety Benefits In Corridor Studies, Volume 2: Pass And Inpass User Manual, Andrzej P. Tarko, Michal Adam Inerowicz, Hong Liang, Jorge L. Ramos

JTRP Technical Reports

the calculation of development and splice lengths. Forty-six glass FRP, carbon FRP, and steel reinforced concrete beams

Influence Of Speed Limits On Roadway Safety In Indiana, Nataliya V. Malyshkina, Fred L. Mannering, Samuel Labi

JTRP Technical Reports

The influence of speed limits on roadway safety is an extremely important social issue and is subject to an extensive debate in the State of Indiana and nationwide. With roughly 900 fatalities and sixty thousand injuries annually in Indiana, traffic accidents place an incredible social and economic burden on the state. Still, speed limits posted on highways and other roads are routinely exceeded as individual drivers try to balance safety and mobility (speed) as well as risks of penalties from enforcement efforts. This research explores the relationship between speed limits and roadway safety. Specifically, the research focuses on the influence …

Semantic 3d Cad And Its Applications In Construction Industry — An Outlook Of Construction Data Visualization, Zhigang Shen, Raja R. A. Issa, Linxia Gu

Department of Construction Engineering and Management: Faculty Publications

In response to the need of using electronic design data directly in construction management applications, many CAD developers have started implementing semantic data models in their CAD products using industry foundation classes (IFCs). While helpful, these semantic CAD applications have limitations when used in actual construction practices. The case studies in the thesis indicated that: 1) the semantics of the current data model (IFC as an example) is not rich enough to cover the richer details of the real trade practices; 2) the current implementation of the semantic data model lacks the mechanism to provide multiple trades views at various …

Biological Opinion On The Operation Of The Missouri River Main Stem System, Operation And Maintenance Of The Missouri River Bank Stabilization And Navigation Project, And Operation Of The Kansas River Reservoir System

United States Army Corps of Engineers, Omaha District

The U.S. Army Corps of Engineers (Corps) has prepared this annual report for interested parties in accordance with reporting requirements of the Biological Opinion (BiOp) on the Operation of the Missouri River Main Stem System (System), Operation and Maintenance of the Missouri River Bank Stabilization and Navigation Project and Operation of the Kansas River Reservoir System, prepared by the U.S. Fish and Wildlife Service (USFWS) dated November 30, 2000, and the Amendment thereto, dated December 16, 2003. This annual report also documents the Corps activities implemented under the Missouri River Bank Stabilization and Navigation Fish and Wildlife Mitigation Project, Iowa, …

U.S. Army Corps Of Engineers Omaha District Monthly Drought Report, August 2007

United States Army Corps of Engineers, Omaha District

Current Conditions

Drought Outlook

Missouri River Region Mountain Snowpack Report

Ft. Peck, Montana

Reservoir Elevation Overview

Water Intake Overview

Access Overview

Noxious Weeds Overview

Cultural Resources Overview

Garrison, North Dakota

Reservoir Elevation Overview

Water Intake Overview

Access Overview

Boat Ramp Information

Noxious Weeds Overview

Cultural Resources Overview

Other Areas of Interest/Concern

Oahe, South Dakota

Reservoir Elevation Overview

Water Intake Overview

Access Overview

Noxious Weeds Overview

Cultural Resources Overview

Mainstem Reservoir Information, Weekly Elevation Comparison 2 JULY 2007 through 30 JULY 2007

Mainstem Reservoir Storage Comparison Water Years 2004, 2005, 2006

Ft. Peck, MT

Garrison, ND

Oahe, SD

U.S. Army Corps Of Engineers Omaha District Monthly Drought Report, February 2007

United States Army Corps of Engineers, Omaha District

Current Conditions

Drought Outlook

Missouri River Region Mountain Snowpack Report

Ft. Peck, Montana

Reservoir Elevation Overview

Water Intake Overview

Access Overview

Noxious Weeds Overview

Cultural Resources Overview

Garrison, North Dakota

Reservoir Elevation Overview

Water Intake Overview

Access Overview

Boat Ramp Information

Noxious Weeds Overview

Cultural Resources Overview

Other Areas of Interest/Concern

Oahe, South Dakota

Reservoir Elevation Overview

Water Intake Overview

Access Overview

Noxious Weeds Overview

Cultural Resources Overview

Mainstem Reservoir Information, Weekly Elevation Comparison 1 JAN 2006 through 29 JAN 2006

Mainstem Reservoir Storage Comparison Water Years 2004, 2005, 2006

Ft. Peck, MT

Garrison, ND

Oahe, SD

U.S. Army Corps Of Engineers Omaha District Monthly Drought Report, June 2007

United States Army Corps of Engineers, Omaha District

Current Conditions

Drought Outlook

Missouri River Region Mountain Snowpack Report

Ft. Peck, Montana

Reservoir Elevation Overview

Water Intake Overview

Access Overview

Noxious Weeds Overview

Cultural Resources Overview

Garrison, North Dakota

Reservoir Elevation Overview

Water Intake Overview

Access Overview

Boat Ramp Information

Noxious Weeds Overview

Cultural Resources Overview

Other Areas of Interest/Concern

Oahe, South Dakota

Reservoir Elevation Overview

Water Intake Overview

Access Overview

Noxious Weeds Overview

Cultural Resources Overview

Mainstem Reservoir Information, Weekly Elevation Comparison 7 MAY 2007 through 28 MAY 2007

Mainstem Reservoir Storage Comparison Water Years 2004, 2005, 2006

Ft. Peck, MT

Garrison, ND

Oahe, SD

U.S. Army Corps Of Engineers Omaha District Monthly Drought Report, November 2007

United States Army Corps of Engineers, Omaha District

Current Conditions

Drought Outlook

Ft. Peck, Montana

Reservoir Elevation Overview

Water Intake Overview

Access Overview

Noxious Weeds Overview

Cultural Resources Overview

Garrison, North Dakota

Reservoir Elevation Overview

Water Intake Overview

Access Overview

Boat Ramp Information

Noxious Weeds Overview

Cultural Resources Overview

Other Areas of Interest/Concern

Oahe, South Dakota

Reservoir Elevation Overview

Water Intake Overview

Access Overview

Noxious Weeds Overview

Cultural Resources Overview

Mainstem Reservoir Information, Weekly Elevation Comparison 3 SEPT 2007 through 24 SEPT 2007

Mainstem Reservoir Storage Comparison Water Years 2004, 2005, 2006, 2007

Ft. Peck, MT

Garrison, ND

Oahe, SD

U.S. Army Corps Of Engineers Omaha District Monthly Drought Report, October 2007

United States Army Corps of Engineers, Omaha District

Current Conditions

Drought Outlook

Ft. Peck, Montana

Reservoir Elevation Overview

Water Intake Overview

Access Overview

Noxious Weeds Overview

Cultural Resources Overview

Garrison, North Dakota

Reservoir Elevation Overview

Water Intake Overview

Access Overview

Boat Ramp Information

Noxious Weeds Overview

Cultural Resources Overview

Other Areas of Interest/Concern

Oahe, South Dakota

Reservoir Elevation Overview

Water Intake Overview

Access Overview

Noxious Weeds Overview

Cultural Resources Overview

Mainstem Reservoir Information, Weekly Elevation Comparison 3 SEPT 2007 through 24 SEPT 2007

Mainstem Reservoir Storage Comparison Water Years 2004, 2005, 2006, 2007

Ft. Peck, MT

Garrison, ND

Oahe, SD

Discrimination Of Bacteria And Bacteriophages By Raman Spectroscopy And Surface-Enhanced Raman Spectroscopy, Lindsay J. Goeller, Mark R. Riley

Department of Agricultural and Biological Systems Engineering: Faculty Publications

Detection of pathogenic organisms in the environment presents several challenges due to the high cost and long times typically required for identification and quantification. Polymerase chain reaction (PCR) based methods are often hindered by the presence of polymerase inhibiting compounds and so direct methods of quantification that do not require enrichment or amplification are being sought. This work presents an analysis of pathogen detection using Raman spectroscopy to identify and quantify microorganisms without drying. Confocal Raman measurements of the bacterium Escherichia coli and of two bacteriophages, MS2 and PRD1, were analyzed for characteristic peaks and to estimate detection limits using …

Introducing Journal Of Biological Engineering, Mark R. Riley

Department of Agricultural and Biological Systems Engineering: Faculty Publications

Welcome to Journal of Biological Engineering (JBE), the flagship publication of the Institute of Biological Engineering. Biological Engineering is a new and unique discipline that encompasses a wide range of engineering theory and practice connected to and derived from biology. This emerging science-based engineering discipline and related applications are experiencing rapid growth. Prior to publication of JBE there is no refereed publication that encompasses the breadth and depth of biological engineering as a science- based discipline, rather than a collection of applications. Our goal in publishing JBE is to provide a forum for topics that address the foundational …

Biocompatibility Of Te–As–Se Glass Fibers For Cell-Based Bio-Optic Infrared Sensors, Allison A. Wilhelm, Pierre Lucas, Diana L. Derosa, Mark R. Riley

Department of Agricultural and Biological Systems Engineering: Faculty Publications

The chemical stability and toxicity of Te–As–Se (TAS) infrared fibers are investigated. These fibers are used for biosensing applications that involve direct contact with live cultivated human cells. It is shown that TAS fibers exhibit a small oxidation layer after extended exposure to air. This layer is highly soluble in water and easily removed. However, the TAS glass itself is stable in water over several days. While oxidized fibers release arsenate ions, which result in toxic effects to the cells, fresh or washed fibers show no toxic effects. A good correlation is shown between surface etching and the disappearance of …