Civil and Environmental Engineering

What's New In The 2007 Edition Of The North American Cold-Formed Steel Specification, R. M. Schuster, Roger A. Laboube, Helen Chen, Roger L. Brockenbrough

CCFSS Proceedings of International Specialty Conference on Cold-Formed Steel Structures (1971 - 2018)

No abstract provided.

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Cold-Formed Steel Special Bolted Moment Frames Cyclic Testing And Numerical Modeling Of Moment Connections, Chia-Ming Uang, Jong-Kook Hong, Atsushi Sato, Ken Wood

CCFSS Proceedings of International Specialty Conference on Cold-Formed Steel Structures (1971 - 2018)

No abstract provided.

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Strength Of Cold-Formed Steel Jamb Stud-To-Track Connections, A. V. Lewis, R. M. Schuster, S. R. Fox

CCFSS Proceedings of International Specialty Conference on Cold-Formed Steel Structures (1971 - 2018)

No abstract provided.

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Response Of Metal Roofs To Uniform Static And True Hurricane Wind Loads, Ralph R. Sinno

CCFSS Proceedings of International Specialty Conference on Cold-Formed Steel Structures (1971 - 2018)

No abstract provided.

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Pile Downdrag During Construction Of Two Bridge Abutments, Brian Keith Sears

Theses and Dissertations

Two steel pipe piles in place in abutments for two different bridge constructions sites were instrumented with strain gauges to measure the magnitude of negative skin friction. The piles were monitored before, during and up to 19 months after construction was completed. The load versus depth and time in each pile is discussed. Maximum observed dragloads ranged from 98 to 127 kips. A comparison with two methods for calculating dragloads is presented. Both comparison methods were found to be conservative, with the Briaud and Tucker (1997) approach more closely estimating the observed load versus depth behavior.

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An Atc-63 Study In Support Of The Proposed System Performance Factors For Aisi S110 Standard For Seismic Design Of Cold-Formed Steel Structures: Special Bolted Moment Frames, American Iron And Steel Institute

American Iron and Steel Institute (AISI) Specifications, Standards, Manuals and Research Reports (1946 - present)

No abstract provided.

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Creating Useful Products From Connecticut's 2000 Lidar Data Set Jhr 08-314 Project 07-2, Thomas H. Meyer

Department of Natural Resources and the Environment Articles

The State of Connecticut owns a LIght Detection and Ranging (LIDAR) data set that was collected in 2000 as part of the State’s periodic aerial reconnaissance missions. Although collected eight years ago, these data are just now becoming ready to be made available to the public. These data constitute a massive “point cloud”, being a long list of east-north-up triplets in the State Plane Coordinate System Zone 0600 (SPCS83 0600), orthometric heights (NAVD 88) in US Survey feet. Unfortunately, point clouds have no structure or organization, and consequently they are not as useful as Triangulated Irregular Networks (TINs), digital elevation …

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Systems Analysis Of Resources Development - California State University, Sacramento, Kaveh Madani

All ECSTATIC Materials

The course presents a variety of systems analysis techniques that can be used for resource planning and management in the civil engineering field. Simulation and optimization techniques (or mathematical programming) are emphasized as they apply to civil engineering problem solving. Course taught at University of Central Florida.

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A Computing Approach Using Probabilistic Neural Networks For Instantaneous Appraisal Of Rear-End Crash Risk, Anurag Pande, Mohamed Abdel-Aty

Computing and information technology has significantly increased the capabilities to collect, store, and analyze freeway traffic surveillance data. The most common forms of such data are collected using the underground loop detectors. In the recent past the potential of using these data for identification of crash-prone conditions has been explored. In the present work, application of probabilistic neural networks (PNN) is explored to identify conditions prone to rear-end crashes on the freeway. PNN is a neural network implementation of the well-documented Bayesian classifier. In this research the rear-end crashes observed on the Interstate-4 corridor in Orlando FL are divided into …

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Ole Miss Engineer 2008

Ole Miss Engineer

No abstract provided.

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Imaging Of Buried Utilities By Ultra Wideband Sensory Systems, Arun Prakash Jaganathan

Doctoral Dissertations

Third-party damage to the buried infrastructure like natural gas pipelines, water distribution pipelines and fiber optic cables are estimated at $10 billion annually across the US. Also, the needed investment in upgrading our water and wastewater infrastructure over the next 20 years is estimated by Environmental Protection Agency (EPA) at $400 billion, however, non-destructive condition assessment technologies capable of providing quantifiable data regarding the structural integrity of our buried assets in a cost-effective manner are lacking. Both of these areas were recently identified several U.S. federal agencies as 'critical national need'. In this research ultra wideband (UWB) time-domain radar technology …

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Inelastic Performance Of Welded Cfs Strap Braced Walls, Giles Comeau

American Iron and Steel Institute (AISI) Specifications, Standards, Manuals and Research Reports (1946 - present)

No abstract provided.

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Annual Update Of Data For Estimating Esal, Clark Graves, Jerry G. Pigman, Brad Rister, David Cain, Neil Tollner

Kentucky Transportation Center Research Report

No abstract provided.

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Practical Solution Concepts For Planning And Designing Roadways In Kentucky, Nikiforos Stamatiadis, Adam Kirk, Donald L. Hartman, Jerry G. Pigman

Kentucky Transportation Center Research Report

Kentucky’s highway agency has embarked upon an initiative tagged “Practical Solutions” which sets its goal toward reducing costs throughout the project development process extended into operations and maintenance of all highway facilities. This study focuses on the planning and design stages of project development. Developing a procedure that yields up to the maximum margin of return for the investment requires an approach that takes into account specific safety issues and the commensurate design elements for each roadway. Such an approach requires that the project 1) achieves the stated goals/objectives and 2) delivers the highest rate of return for the investment. …

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Mesoscale Dispersive Flux In The Lower Reaches Of The Elizabeth River Estuary, Byron Danrich Tracy

Civil & Environmental Engineering Theses & Dissertations

Congress has mandated under Section 303(d) of the Clean Water Act that Total Maximum Daily Loads (TMDL's) be established for impaired water bodies to further identify and regulate their waste assimilative capacity. To establish a TMDL, the sources of waste loading or pollutants must be identified, and a method of determining how each should be limited or removed must be developed. Using a water quality model is a typical method for determining these limits, and since new or changed limits will likely impact local businesses and government budgets, the model must be accurate. For most tidal systems larger than small …

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Performance Evaluation Of Safety Grates For Cross-Drainage Culverts, Karla A. Polivka, Dean L. Sicking, Robert W. Bielenberg, John R. Rohde, Ronald K. Faller, John D. Reid

Nebraska Department of Transportation: Research Reports

No abstract provided.

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Development Of An Integrated Land-Use Transportation Model For Indiana, Li Jin, Jon D. Fricker

JTRP Technical Reports

The Indiana Department of Transportation has an operational statewide travel demand model (ISTDM). INDOT also has used the Land Use Central Indiana (LUCI) model to forecast conversion of land to residential and employment uses in future decades over a 44-county area in central Indiana. This paper describes how the LUCI model was expanded to cover the same geographic area as the ISTDM, how the internal structure of each model was made to be compatible with the other model, and how the outputs from each model were made to be suitable as inputs to the other model. The result is an …

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Analysis And Determination Of Axle Load Spectra And Traffic Input For The Mechanistic-Empirical Pavement Design Guide, Yi Jiang, Shuo Li, Tommy E. Nantung, Huaxin Chen

JTRP Technical Reports

The values of equivalent single axle loads (ESAL) have been used to represent the vehicle loads in pavement design. To improve the pavement design procedures, a new method, called the Mechanistic-Empirical Pavement Design Guide (MEPDG), has been developed to use the axle load spectra to represent the vehicle loads in pavement design. These spectra represent the percentage of the total axle applications within each load interval for single, tandem, tridem, and quad axles. Using axle load spectra as the traffic input, the MEPDG method is able to analyze the impacts of varying traffic loads on pavement and provide an optimal …

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Bs News

Building Services Engineering

No abstract provided.

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2008 Summary Of Highway Revenues, Distributions, & Expenses For Indiana Counties, Cities, & Towns, Indiana Ltap

Indiana Local Technical Assistance Program (LTAP) Publications

This report provides information on revenues, distributions, and expenses of state and local governments for highway, road, and street work. Since the Motor Vehicle Highway (MVH) and Local Road and Street (LRS) Accounts are the principal source of funds for local road or street construction and maintenance operations, this summary may be used to see the trends in income sources and in the expenses charged to the funds prior to their being distributed to the highway, road, and street agencies.

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2008 Statewide Bridge Sufficiency Rating Report, Indiana Ltap

Indiana Local Technical Assistance Program (LTAP) Publications

The main purpose of this report is to provide bridge sufficiency rating information for the bridges in each county. This information results from the data generated by the National Bridge Inspection Standards (NBIS) program authorized by the 1968 Federal Aid Highway Act.

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Assessment Of Axially-Loaded Pile Dynamic Design Methods And Review Of Indot Axially-Loaded Pile Design Procedure, Dimitrios Loukidis, Rodrigo Salgado, Grace Abou-Jaoude

JTRP Technical Reports

The general aim of the present research is to identify areas of improvement and propose changes in the current methodologies followed by INDOT for design of axially loaded piles, with special focus on the dynamic analysis of pile driving. Interviews with INDOT geotechnical engineers and private geotechnical consultants frequently involved in INDOT’s deep foundation projects provided information on the methods and software currently employed. It was found that geotechnical engineers rely on static unit soil resistance equations that were developed over twenty years ago and that have a relatively large degree of empiricism. Updated and improved static design equations recently …

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Evaluation Of Performance And Design Of Ultra-Thin Whitetopping (Bonded Concrete Resurfacing) Using Large-Scale Accelerated Pavement Testing, Scott Newbolds, Jan Olek

JTRP Technical Reports

Ultra-Thin Whitetopping (UTW) is a pavement rehabilitation technique that involves the placement of a thin Portland Cement Concrete (PCC) overlay, 2 inches (50 mm) to 4 inches (100 mm) thick, over a distressed Hot Mix Asphalt (HMA) pavement. Typically, the HMA pavement is milled and cleaned which helps to create a bond between the existing HMA pavement and the PCC overlay. The bond between the two layers promotes composite action of the pavement section and as a result has a direct impact on the performance of the UTW Pavement. This composite action allows for the reduced thickness in the UTW …

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Impact Of Vegetable Oil On Distribution Of Trichloroethylene In Groundwater During Enhanced Bioremediation, M. Pu, Ryan Dupont, William J. Doucette

Civil and Environmental Engineering Faculty Publications

Vegetable oils are increasingly being used as long-term carbon donors to stimulate reductive dechlorination of trichloroethylene (TCE). Besides potential enhancement of biodegradation, the addition of vegetables oils may impact TCE fate and distribution within the aquifer by acting as non-aqueous phase liquids (NAPL). Distribution coefficients for TCE between groundwater and four vegetable oils were determined using a slow-stir technique. Log vegetable oil/water distribution coefficients (log Kvw) were found to range from 1.0 to 2.56. TCE/vegetable oil distribution coefficients statistically increased with an increase in oil weathering while the concentration of dissolved organic carbon (DOC) in the water did not change …

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Effect Of Nitrification On Lead Corrosion In Chloraminated Distribution Systems, Michael Shade

All Theses

Water treatment facilities have been shifting from using chlorination to chloramination as a primary disinfectant since 2004, when the EPA enacted the Disinfectants/Disinfection By-Products (D/DBP) Rule mandating the decrease of DBPs. After the switch to chloramination, an unexpected lead concentration increase was detected in the Washington, D. C., and Greenville, NC water systems. These increases may be associated with the switch from chlorination to chloramination. Decomposition of chloramines results in higher ammonia loading to drinking water distribution systems, which may increase nitrification. Nitrifying bacteria may facilitate lead corrosion via two mechanisms: use of nitrite or nitrate as an alternative electron …

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Effects Of Environmental Factors On Construction Of Soil-Cement Pavement Layers, John E. Michener

Theses and Dissertations

The specific objectives of this research were to quantify the effects of certain environmental factors on the relative strength loss of soil-cement subjected to compaction delay and to develop a numerical tool that can be easily used by engineers and contractors for determining a maximum compaction delay time for a given project. These objectives were addressed through extensive laboratory work and statistical analyses. The laboratory work involved testing an aggregate base material and a subgrade soil, each treated with two levels of cement. Environmental factors included in the experimentation were wind speed, temperature, and relative humidity, and three levels of …

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Verification Of Asphalt Concrete Performance Prediction Using Level 2 And Level 3 Inputs Of Mechanistic-Empirical Pavement Design Guide For Flexible Pavements Of The State Of New Jersey, Nusrat Siraj

Theses and Dissertations

The purpose of this thesis is to present the results of the verification study of the Mechanistic-Empirical Pavement Design Guide (M-EPDG) using level 2 and level 3 inputs. In addition, the challenges of verification of the predicted performance with the help of field-measured data of existing flexible pavements are also presented. In this study, twenty-five sections were analyzed covering a broad range of soil, environmental conditions, traffic volumes and pavement structures observed in the state of New Jersey. Predicted performance of various distresses, such as rutting, alligator cracking, longitudinal cracking, thermal cracking and International Roughness Index (IRI) were verified for …

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Determining The Repair Ranking Of Existing Rc Bridges Using Multi-Pole Fuzzy Pattern Recognition Evaluation Method, Ming-Te Liang, Ting- Bang Chu, Wen-Hu Tsao, Chi-Jang Yeh

Journal of Marine Science and Technology–Taiwan

This paper proposes a technique for determining the repair ranking of existing reinforced concrete (RC) bridges using the multi-pole fuzzy pattern recognition evaluation method. The differences between bridges and grades are expressed by weighted generalized weight distance. To find the optimal relative membership degree of an evaluated bridge attributed to any grade, the operative principle is that the sum of the square of weighted generalized weight distance is minimum. Based on this principle, the problem of extreme value is established by the objective function in connection with constraint condition. Using the Lagrangean method, the multi-pole fuzzy pattern recognition evaluation method …

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Treatability Of U.S. Environmental Protection Agency Contaminant Candidate List Viruses: Removal Of Coxsackievirus And Echovirus Using Enhanced Coagulation, Brooke K. Mayer, Hodon Ryu, Morteza Abbaszadegan

Civil and Environmental Engineering Faculty Research and Publications

Enhanced coagulation was evaluated for removal efficacy of coxsackievirus and echovirus (Contaminant Candidate List [CCL] enteroviruses), poliovirus, four potential surrogate bacteriophages, and dissolved organic carbon (DOC). Viruses and DOC were effectively removed using enhanced coagulation, with removals generally improving as dose increased and pH decreased. Optimal enhanced coagulation conditions of 40 mg/L FeCl₃ and pH between 5 and 6.5 resulted in a maximum removal of 3.0 logs of coxsackievirus B6, 1.75 logs of echovirus 12, 2.5 logs of poliovirus 1, 1.8 logs of fr, 1.3 logs of phi-X174, 0.36 logs of MS2, 0.29 logs of PRD1, and 41% DOC. …

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Effect Of Steel Fiber On The Mechanical Properties Of Cement-Based Composites Containing Silica Fume, Wei-Ting Lin, Ran Huang, Chin-Lai Lee, Hui-Mi Hsu

Journal of Marine Science and Technology–Taiwan

An experimental program was carried out to evaluate the mechanical properties of cement-based composites. Test variables included water to cementitious ratio, dosage of silica fume and volume fraction of steel fiber. Compressive strength test, direct tensile strength test, splitting tensile strength test, abrasion resistance test and drop weight test were performed and the results were analyzed statistically. According to the results of this study, the designed direct tensile testing method was a suitable method to estimate the tensile strength of fiber cement-based composites. Addition of fibers provided better performance for the cement-based composites, while silica fume in the composites would …

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Full-Text Articles in Civil and Environmental Engineering

What's New In The 2007 Edition Of The North American Cold-Formed Steel Specification, R. M. Schuster, Roger A. Laboube, Helen Chen, Roger L. Brockenbrough

CCFSS Proceedings of International Specialty Conference on Cold-Formed Steel Structures (1971 - 2018)

Cold-Formed Steel Special Bolted Moment Frames Cyclic Testing And Numerical Modeling Of Moment Connections, Chia-Ming Uang, Jong-Kook Hong, Atsushi Sato, Ken Wood

CCFSS Proceedings of International Specialty Conference on Cold-Formed Steel Structures (1971 - 2018)

Strength Of Cold-Formed Steel Jamb Stud-To-Track Connections, A. V. Lewis, R. M. Schuster, S. R. Fox

CCFSS Proceedings of International Specialty Conference on Cold-Formed Steel Structures (1971 - 2018)

Response Of Metal Roofs To Uniform Static And True Hurricane Wind Loads, Ralph R. Sinno

CCFSS Proceedings of International Specialty Conference on Cold-Formed Steel Structures (1971 - 2018)

Pile Downdrag During Construction Of Two Bridge Abutments, Brian Keith Sears

Theses and Dissertations

An Atc-63 Study In Support Of The Proposed System Performance Factors For Aisi S110 Standard For Seismic Design Of Cold-Formed Steel Structures: Special Bolted Moment Frames, American Iron And Steel Institute

American Iron and Steel Institute (AISI) Specifications, Standards, Manuals and Research Reports (1946 - present)

Creating Useful Products From Connecticut's 2000 Lidar Data Set Jhr 08-314 Project 07-2, Thomas H. Meyer

Department of Natural Resources and the Environment Articles

Systems Analysis Of Resources Development - California State University, Sacramento, Kaveh Madani

All ECSTATIC Materials

A Computing Approach Using Probabilistic Neural Networks For Instantaneous Appraisal Of Rear-End Crash Risk, Anurag Pande, Mohamed Abdel-Aty

Civil and Environmental Engineering

Ole Miss Engineer 2008

Ole Miss Engineer

Imaging Of Buried Utilities By Ultra Wideband Sensory Systems, Arun Prakash Jaganathan

Doctoral Dissertations

Inelastic Performance Of Welded Cfs Strap Braced Walls, Giles Comeau

American Iron and Steel Institute (AISI) Specifications, Standards, Manuals and Research Reports (1946 - present)

Annual Update Of Data For Estimating Esal, Clark Graves, Jerry G. Pigman, Brad Rister, David Cain, Neil Tollner

Kentucky Transportation Center Research Report

Practical Solution Concepts For Planning And Designing Roadways In Kentucky, Nikiforos Stamatiadis, Adam Kirk, Donald L. Hartman, Jerry G. Pigman

Kentucky Transportation Center Research Report

Mesoscale Dispersive Flux In The Lower Reaches Of The Elizabeth River Estuary, Byron Danrich Tracy

Civil & Environmental Engineering Theses & Dissertations

Performance Evaluation Of Safety Grates For Cross-Drainage Culverts, Karla A. Polivka, Dean L. Sicking, Robert W. Bielenberg, John R. Rohde, Ronald K. Faller, John D. Reid

Nebraska Department of Transportation: Research Reports

Development Of An Integrated Land-Use Transportation Model For Indiana, Li Jin, Jon D. Fricker

JTRP Technical Reports

Analysis And Determination Of Axle Load Spectra And Traffic Input For The Mechanistic-Empirical Pavement Design Guide, Yi Jiang, Shuo Li, Tommy E. Nantung, Huaxin Chen

JTRP Technical Reports

Bs News

Building Services Engineering

2008 Summary Of Highway Revenues, Distributions, & Expenses For Indiana Counties, Cities, & Towns, Indiana Ltap

Indiana Local Technical Assistance Program (LTAP) Publications

2008 Statewide Bridge Sufficiency Rating Report, Indiana Ltap

Indiana Local Technical Assistance Program (LTAP) Publications

Assessment Of Axially-Loaded Pile Dynamic Design Methods And Review Of Indot Axially-Loaded Pile Design Procedure, Dimitrios Loukidis, Rodrigo Salgado, Grace Abou-Jaoude

JTRP Technical Reports

Evaluation Of Performance And Design Of Ultra-Thin Whitetopping (Bonded Concrete Resurfacing) Using Large-Scale Accelerated Pavement Testing, Scott Newbolds, Jan Olek

JTRP Technical Reports

Impact Of Vegetable Oil On Distribution Of Trichloroethylene In Groundwater During Enhanced Bioremediation, M. Pu, Ryan Dupont, William J. Doucette

Civil and Environmental Engineering Faculty Publications

Effect Of Nitrification On Lead Corrosion In Chloraminated Distribution Systems, Michael Shade

All Theses

Effects Of Environmental Factors On Construction Of Soil-Cement Pavement Layers, John E. Michener

Theses and Dissertations

Verification Of Asphalt Concrete Performance Prediction Using Level 2 And Level 3 Inputs Of Mechanistic-Empirical Pavement Design Guide For Flexible Pavements Of The State Of New Jersey, Nusrat Siraj

Theses and Dissertations

Determining The Repair Ranking Of Existing Rc Bridges Using Multi-Pole Fuzzy Pattern Recognition Evaluation Method, Ming-Te Liang, Ting- Bang Chu, Wen-Hu Tsao, Chi-Jang Yeh

Journal of Marine Science and Technology–Taiwan

Treatability Of U.S. Environmental Protection Agency Contaminant Candidate List Viruses: Removal Of Coxsackievirus And Echovirus Using Enhanced Coagulation, Brooke K. Mayer, Hodon Ryu, Morteza Abbaszadegan

Civil and Environmental Engineering Faculty Research and Publications

Effect Of Steel Fiber On The Mechanical Properties Of Cement-Based Composites Containing Silica Fume, Wei-Ting Lin, Ran Huang, Chin-Lai Lee, Hui-Mi Hsu

Journal of Marine Science and Technology–Taiwan