Civil and Environmental Engineering Commons^™

Public Perceptions Of The Midwest’S Pavements - Wisconsin - Executive Summary, David Kuemmel, Richard Robinson, Robert J. Griffin, Ronald C. Sonntag, James K. Giese

Transportation Research Center: Public Perception of Midwest Pavements

This report summarizes Wisconsin results of a five year, Pooled Fund study involving the Wisconsin, Iowa, and Minnesota DOTs designed to 1) assess the public's perceptions of the departments’ pavement improvement strategies and 2) to develop customer-based thresholds of satisfaction with pavements on rural two lane highways in each state as related to the Departments’ physical indices, such as pavement ride and condition. The primary objective was to seek systematic customer input to improve the Departments’ pavement improvement policies by 1) determining how drivers perceive the departments’ pavements in terms of comfort and convenience but also in terms of other …

Public Perceptions Of The Midwest’S Pavements - Wisconsin - Phase I (Winter Ride), Marquette University,Department Of Civil, Construction, And Environmental Engineering

Transportation Research Center: Public Perception of Midwest Pavements

The Wisconsin Winter Ride Survey was designed to determine the extent to which drivers were tolerant of the rougher ride of pavements on rural two-lane highways in the winter. Survey objectives, as such, were centered around this primary question of winter ride tolerance. A telephone survey was conducted by the Wisconsin Survey Research Laboratory (WSRL), which added questions to its quarterly Wisconsin Opinion Poll for the data collection period of January 15 to March 15, 1997. A similar survey focusing only on the topic of winter driving on rural highways was conducted in Minnesota during the same period. Random digit …

Public Perceptions Of The Midwest’S Pavements - Minnesota - Phase Iii (Targeted Survey Report), University Of Wisconsin - Extension, Wisconsin Survey Research Laboratory

Transportation Research Center: Public Perception of Midwest Pavements

This research is being conducted as part of a larger study of the public’s perceptions of state-maintained rural highway pavements in Wisconsin, Minnesota, and Iowa. Later stages of this project will involve interviewing residents of the three states by telephone to gather information about people’s concerns about the pavements in general and specific stretches of highways in particular. Information from this effort is expected to aid the states’ Departments of Transportation refine the standards used to set pavement reconstruction priorities to better meet the needs of residents.

Public Perceptions Of The Midwest’S Pavements - Wisconsin - Phase I (Focus Group), University Of Wisconsin - Extension, Wisconsin Survey Research Laboratory

Transportation Research Center: Public Perception of Midwest Pavements

This research is being conducted as part of a larger study of the public's perceptions of state-maintained rural highway pavements in Wisconsin, Minnesota, and Iowa. Later stages of this project will involve interview;ing residents of the three states by telephone to gather information about people's concerns about the pavements in general and specific stretches of highways in particular. Information from this effort is expected to aid the states' Departments of Transportation refine the standards used to set pavement reconstruction priorities to better meet the needs of residents.

Development Of Comprehensive Subgrade Deflection Acceptance Criteria - Phase 3 Report, James Crovetti, Jay Schabelski

Transportation Research Center: Subgrade Deflection Studies

This report has presented the findings of Phase III of research conducted to aid in the development of subgrade deflection acceptance criteria for WisDOT. The reconfigured rolling wheel deflectomter (RWD), portable truck-mounted deflection measurement systems, and automated dynamic cone penetrometer (DCP) were utilized on subgrade construction projects throughout the 2000 construction season. Laboratory analysis of soil properties, including Proctor, CBR and unconfined compression tests, were also conducted.

The research findings have validated the concept of using deflection testing results to identify areas of poor in-place stability within constructed subgrades. It is recommended that pilot implementations of deflection acceptance testing be …

2001 Wisdot Specifications - Marquette Staff Introduction, Marquette University, Transportation Research Center

Transportation Research Center: Noise & Texture Studies

No abstract provided.

2001 Wisdot Specifications - Texture Of Pcc Pavements, Marquette University, Transportation Research Center

Transportation Research Center: Noise & Texture Studies

No abstract provided.

Application Of Dynamic System Identification To Timber Beams - Part I, S T. Peterson, D I. Mclean, M D. Symans, David Pollock, W F. Cofer, R N. Emerson, Kenneth J. Fridley

Faculty Publications - Biomedical, Mechanical, and Civil Engineering

In this first part of a two-part paper, development of a method of dynamic system identification for timber beams is presented with an analytical verification of the method using a finite-element model. A method of global nondestructive evaluation for identifying local damage and decay in timber beams is investigated in this paper. Experimental modal analysis is used in conjunction with a previously developed damage localization algorithm. The damage localization algorithm utilizes changes in modal strain energy between the mode shapes of a calibrated model, representing the undamaged state of the beam of interest, and the experimentally obtained mode shapes for …

Reliability Indices For Bolted And Nailed Connections In Wood Structures, David Pollock, Donald A. Bender

Faculty Publications - Biomedical, Mechanical, and Civil Engineering

Recently published test data for bolted and nailed connections was evaluated to assess the structural reliability inherent in current allowable stress design procedures for connections in wood structures. Reliability indices were determined for timber connections using standard firstorder, second moment (FOSM) procedures. For the connections considered in this study, reliability indices range from 2.6 to5.1, generally providing higher levels of safety than the structural members in timber structures.

Application Of Dynamic System Identification To Timber Beams - Part Ii, S T. Peterson, D I. Mclean, M D. Symans, David Pollock, W F. Cofer, R N. Emerson, Kenneth J. Fridley

Faculty Publications - Biomedical, Mechanical, and Civil Engineering

In a companion paper, a method of global nondestructive evaluation (NDE) for identifying local damage and decay in timber beams was developed and verified analytically using a finite-element model of a timber beam. The previously presented method of damage localization employs experimental modal analysis and an algorithm that monitors changes in modal strain energy between the mode shapes of a damaged beam with respect to the undamaged state of the beam. In this second part of a two-part paper, experimental laboratory tests on simply supported timber beams are presented to verify the capabilities and determine the limitations of the proposed …

A Modal Pushover Analysis Procedure To Estimate Seismic Demands For Buildings: Theory And Preliminary Evaluation, Anil K. Chopra, Rakesh K. Goel

Civil and Environmental Engineering

The principal objective of this investigation is to develop a pushover analysis procedure based on structural dynamics theory, which retains the conceptual simplicity and computational attractiveness of current procedures with invariant force distribution, but provides superior accuracy in estimating seismic demands on buildings.

The standard response spectrum analysis (RSA) for elastic buildings is reformulated as a Modal Pushover Analysis (MPA). The peak response of the elastic structure due to its nth vibration mode can be exactly determined by pushover analysis of the structure subjected to lateral forces distributed over the height of the building according to s^*_n = …

Concrete Roughness Characterization Using Laser Profilometry For Fiber-Reinforced Polymer Sheet Application, Norbert H. Maerz, Poornima Chepur, John J. Myers, Justin Linz

Geosciences and Geological and Petroleum Engineering Faculty Research & Creative Works

The failure of a reinforced concrete member strengthened with fiberreinforced polymer (FRP) laminates may be caused by crushing of concrete, rupture of FRP laminates, or delamination of the FRP sheet. Therefore, the effectiveness and failure mode of FRP sheets applied to beams and columns is related to the degree of adhesion of the epoxy to the concrete surface. When a peeling or delamination failure can be avoided, a more effective engagement of the FRP sheet occurs, which results in more efficient use of the material. One of the principal factors affecting the bond behavior between the concrete and epoxy is …

Enhanced Biodegradation Of Hydrocarbon Contaminants Using Photocatalytic Pretreatment, Chad E. Green, Anita Stansberry, Jeff Sczechowski, Yarrow Nelson

Civil and Environmental Engineering

Photocatalysis was investigated as a pretreatment for hydrocarbon groundwater contamination at an abandoned oil field in Guadalupe, CA. A laboratory photoreactor, with a UV fluorescent lamp submerged in a suspension of TiO₂ catalyst particles, was used to determine oxidation rates and the increase in biodegradability of the hydrocarbon mixture. Chemical oxidation demand (COD) and 5-day biological oxygen demand (BOD₅) were measured as a function of exposure time using standard methods. During eight-hour photoreactor runs in a nitrogen atmosphere, the COD of diluent solutions in de-ionized water and diluent solutions in simulated groundwater both decreased by approximately 50%, …

Permeability Performance Of High-Performance Concrete Subjected To Various Curing Regimes, John J. Myers

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

Concrete technology has continued to advance throughout the years to meet the demands of designers and innovative structural systems. Traditionally, the most common means to specify durable concrete has been via specifying a maximum water-to-cementitious material ratio or a minimum cement content. With the advent of high-performance concrete (HPC), which often has higher contents of cementitious materials and a variety of admixtures, questions about permeability performance and alternative methods to specify durable concrete have arisen. The study conducted herein comments on the applicability of prescriptive specifications for HPC and investigates the influence of curing regimes and concrete temperature development during …

Ole Miss Engineer 2001

Ole Miss Engineer

No abstract provided.

Fuzzy Set Ranking Methods And Multiple Expert Decision Making, Predrag Prodanovic

Water Resources Research Report

The present report further investigates the multi-criteria decision making tool named Fuzzy Compromise Programming. Comparison of different fuzzy set ranking methods (required for processing fuzzy information) is performed. A complete sensitivity analysis concerning decision maker’s risk preferences was carried out for three water resources systems, and compromise solutions identified. Then, a weights sensitivity analysis was performed on one of the three systems to see whether the rankings would change in response to changing weights. It was found that this particular system was robust to the changes in weights.

An inquiry was made into the possibility of modifying Fuzzy Compromise Programming …

Composites In Construction: Present Situation And Priorities For Future Research, Antonio Nanni, Edoardo Cosenza, Gaetano Manfredi, Andrea Prota

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

This paper was written at the conclusion of the International Workshop titled "Composites for Construction: A Reality," held in Capri, Italy, July 20-21, 2001. Its objective is to collect and summarize main ideas, opinions, evaluations, and proposals that emerged during the discussions held by the participants at break-up and general sessions. For simplicity, the reporting follows the order of such sessions and includes elements from the general sessions when applicable. The paper is intended to help professionals and scientists interested in the study and implementation of composites for the built infrastructure by providing a vivid snapshot of the state-of-the-art situation, …

Hydrographic And Ove~Bank Surveys Of The Missouri River At The Vermillion Reach, Myron Grove Game Production Area, And North Alabama Bend Near Vermillion, South Dakota

United States Army Corps of Engineers, Omaha District

Survey Control Information and Site Specific Control Point Documentation and Field Notes from Electronic Data Collectors for Myron Grove Game Production Area, North Alabama Bend, and Vermillion Reach.

On The Effectiveness Of State Anti-Corporate Farming Laws In The United States, Rick Welsh, Chantal Line Carpentier, Bryan Hubbell

United States Environmental Protection Agency: Publications

Structural changes in US agriculture toward a more corporate-oriented and vertically aligned system have focused attention on the relative efficacy of the anti-corporate farming laws of nine Midwestern states. Using state-level data from a survey of agricultural lawyers and the U.S. Census of Agriculture, we find that the restrictiveness of the laws vary among states, and the relative restrictiveness of the laws have changed over time. Also, strengthening a law tends to limit acreage under non-family corporate ownership arrangements.

A Practical Guide To Estimating Cleanup Costs, Mike Goldstein, Jon Ritterling

United States Environmental Protection Agency: Publications

Cost estimates are frequently developed to evaluate hazardous-waste-site cleanup options in support of a site investigation, remedy selection decision, or assessment of environmental liabilities. The accuracy of the cost estimate depends largely on the quality of the information available at the time it is prepared. This article presents a practical guide to developing a cleanup cost estimate. It includes information on how to document assumptions, use the latest technical resources, and perform basic adjustments to account for uncertainty and the time value of money. The content is based upon a recent guidance document issued by the U.S. Environmental Protection Agency …

Experimental Characterization Of Metallic Dampers For Seismic Retrofit Of Highway Bridges, Genda Chen, Eric R. Bothe, Jeffrey Ger

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

The seismic effectiveness of metallic dampers as vibration isolators and energy dissipation devices as well as the dynamic performance of high rocker bearings are investigated experimentally. The scope of the study includes optimizing the metallic dampers for maximum dissipation of energy, characterizing full-scale metallic dampers, and understanding the seismic behavior of a small-scale bridge with dampers. Three full-scale dampers, two of straight and one of linearly tapered rods, were fabricated and tested under a progressive cyclic load. Test results consistently show that the tangential stiffness of the metallic dampers does not degrade significantly as the number of loading cycles increases …

Experimental Procedure For Testing Of Piles Under Varying Axial And Lateral Loads, Pedro Franco Silva, F. Seible

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

A research program was carried out at the University of California San Diego (UCSD) to study the seismic response of piles and their connections to the pier cap. As part of this research program, an experimental procedure for testing of piles under simulated seismic loading was developed. This experimental procedure was implemented in a research program to test the as-built piles of the San Diego Coronado Bay Bridge piles in order to validate the design criteria recommended by the design team for the seismic retrofit of the Coronado Bay Bridge.

Calibrations Of Cold-Formed Steel Welded Connections, F. M. Tangorra, R. M. Schuster, Roger A. Laboube

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

No abstract provided.

Light Gage Steel Framing, Dale Industries

CCFSS Library (1939 - present)

No abstract provided.

Metal Drywall Framing And Accessories, Dale Industries

CCFSS Library (1939 - present)

No abstract provided.

Webquests As An Integrative Experience In Introductory Environmental Engineering, Mary P. Cardenas

All HMC Faculty Publications and Research

An Integrative Experience was developed as part of an introductory environmental engineering course at Harvey Mudd College. The Integrative Experience was developed to help the college students consider the relationship of science and technology with contemporary society. Junior and senior students enrolled in the course designed WebQuests for middle school students. The WebQuests involved the integration of an environmental issue, problem, or technology and societal effects. WebQuests were designed for a middle school audience in order to expand the amount of engineering outreach that is done at the K-12 level. The HMC students chose WebQuests topics including nuclear and alternative …

Guides And Specifications For The Use Of Composites In Concrete And Masonry Construction In North America, Antonio Nanni

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

This paper covers the latest developments in the preparation of design guidelines, construction specifications, and inspection and quality control recommendations related to the use of composites in construction. The forms of FRP composites addressed are limited to bars and laminates for reinforcement of concrete and masonry structures (new construction and repair/rehabilitation). FRP bars are being used as the internal reinforcement in concrete members when the conventional steel bars may be undesirable for a host of reasons (e.g., corrosion), and principles for design and construction have been established and proposed to industry by the American Concrete Institute (ACI). Conversely, strengthening of …

Using Flash Animations And 3d Rendering To Increase The Effectiveness Of Instructional Software, Timothy A. Philpot

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

Animation and three-dimensional rendering software offers exciting new capabilities that can enhance engineering instructional material. Using these software tools, instructional media can escape the static two-dimensional confines of the printed page or the classroom blackboard. This work-in-progress describes a project to develop instructional material for a Mechanics of Materials course. The paper presents examples of instructional animations, discusses software development tools used to create the animations and discusses early student reaction to the multimedia presentations

Development Of A Low-Cost, Self-Calibrating Stream Gaging Station, Gilberto Urroz, Robert C. Leines, Garryn L. Perret, Jared M. Holland, Brian E. Hunsaker

Reports

Executive Summary: The present report presents a review of the state-of-the-art technologies for the development of a low-cost, self-calibrating stream gaging station. The research was conducted by the Utah Water Research Laboratory with funding provided by the Utah Division of Water Resources through Project RP 110080, March 1998. The report presents a review of the current practices in stream gaging and how technologies such as remote data telemetry through the use of satellite, cellular phone communications, and radio telemetry can be used for the real-time transmission of data. The study also includes the use of Global Positioning System (GPS) for …

Kentucky Traffic Collision Facts 2001 Report, Kentucky Transportation Center, Kentucky State Police

Kentucky Transportation Center Research Report

KENTUCKY’S TRAFFIC COLLISION FACTS report for 2001 is based on collision reports submitted to the Kentucky State Police Records Branch. As required by Kentucky Revised statutes 189.635, “every law enforcement agency whose officers investigate a vehicle accident of which a report must be made...shall file a report of the accident...within ten days after investigation of the accident upon forms supplied by the bureau.” The stated purpose of this requirement is to utilize data on traffic collisions for such purposes as will improve the traffic safety program in the Commonwealth. Data contained in this report are based solely on the observations …