Civil and Environmental Engineering Commons^™

Groundwater Model Parameter Estimation Using Response Surface Methodology, Richard M. Cotman

Theses and Dissertations

This thesis examined the use of response surface methodology (RSM) to estimate the parameters of a finite-element groundwater model. An existing two-dimensional, steady-state flow model of a fractured carbonate groundwater system in southwestern Ohio served as the calibration target data set. A Plackett-Burman screening design showed that only four of the ten hydraulic conductivity zones significantly contributed to the output of the finite-element model. Also, the effective porosity parameter did not significantly affect the model's output. Using only the four significant hydraulic conductivity parameters; four two-level, four-factor designed experiments were conducted to exploit the first-order response surface defined by a …

Proceedings Of The 1995 Annual Symposium On Engineering Geology And Geotechnical Engineering (No. 31), Joseph A. Caliendo

Reports

No abstract provided.

Field Performance Report On Pvc Pipe Campbell County, L. John Fleckenstein, David L. Allen

Kentucky Transportation Center Research Report

This report documents the installation and performance of PVC pipe installed on KY 9 in Campbell County. The pipe installed was Perma-Loc, manufactured by J-M Manufacturing Company, Inc.

Pipes appear to be performing well with the clean coarse sand backfill.lt is apparent the pipe is brittle at lower temperatures. and caution should be exercised during cold weather construction.

It is apparent that the contractor achieved substantial compaction around the haunches and the side of the pipe which is helping to reduce pipe deflection.

In July 1995, the pipes will have been installed for approximately two years. Minor changes in pipe …

Bs News

Building Services Engineering

No abstract provided.

Assuring A Long Term Groundwater Supply: Issues, Goals And Tools, Richard C. Peralta

Civil and Environmental Engineering Faculty Publications

Groundwater is a hidden, but important resource. We can practicably define groundwater as water beneath the ground surface that can be extracted by wells. Other water in the ground that is not considered to be available for man’s direct use is commonly called “subsurface water.” Subsurface water includes moisture within the root zone.

Ccfss Technical Bulletin February 1995, Wei-Wen Yu Center For Cold-Formed Steel Structures

CCFSS Technical Bulletins (1993 - 2020)

No abstract provided.

Metal Stud Manufacturer's Association Catalog, Metal Stud Manufacturer's Association

CCFSS Library (1939 - present)

No abstract provided.

Ccfss News February 1995, Wei-Wen Yu Center For Cold-Formed Steel Structures

CCFSS Newsletters (1999 - 2008)

No abstract provided.

Alternatives To The Current Aashto Standard Bridge Sections, Joseffa Viktoria Meir, Michael Ramon Cicciarelli, J. A. Ramirez, Robert H. Lee

JTRP Technical Reports

The main objective of this study was evaluate feasible alternatives to the current AASHTO bridge girders used in Indiana. This evaluation included precast pretensioned bridge girders for spans from 30 to 130 feet with girder spacing between 5 and 10 feet up to 12 feet for the longer spans. Other criteria included girder design concrete compressive strengths up to 7000 psi, 8” total concrete deck thickness with design strength of 4000 psi, grade 60 steel for slab reinforcement and stirrups and ½” special grade 270 low-relaxation strand for prestressing steel. Post-tensioning and pretensioned box girders were outside the scope of …

A Summary Of Highway Revenues, Expenses, And Distributions: 1987 Through 1994, Herpicc

Indiana Local Technical Assistance Program (LTAP) Publications

This report shows the history of receipts, expenses and distributions of revenues that provide funding to all local governments for highway, road and street work.

Bs News

Building Services Engineering

No abstract provided.

Analysis Of Plates And Reinforced Concrete Columns By Cubic B-Spline Function, Gang Wang

Dissertations

Applying spline functions to numerical structural analysis has been more common in recent years. The recent increase use of spline functions is mainly due to their excellent characteristics, such as sectionalized continuity, linear combination, flexibility, and easy use for various boundary conditions. The whole deformed shape of some structures or substructures can be described with one displacement function constructed by a series of spline functions. By doing this, the mesh generation and the huge computer memory space are no longer needed because only one single superelement can be used in the whole process. The choice of spline functions as displacement …

Stress-Strain Behavior Of High Strength Concrete Cylinders, Danqing Chen

Theses

Due to the recent development of high strength concrete in engineering and construction, it has become more important to study the behavior of materials in structures.

No results have been previously published in the literature regarding the influence of aspect ratio in plain high strength concrete cylinders on stress-strain behavior under uniaxial compression.Thus at present study, compression tests were conducted on 3x6 in., 3x9 in., and 3x12 in. plain high strength concrete cylinders to study their stress-strain behavior. Plain normal strength concrete cylinders were also tested and used for comparative study.

Based on the present investigations, attempting to obtain a …

A Comparison Between Revealed Preference (Rp) And Stated Preference (Sp) Based On Results Of Simulations, Qiuzi Chen

Theses

This research quantifies the potential biases resulted from two different data generation methods used in transportation modeling: Revealed Preference (RP) and Stated Preference (SP) techniques. Revealed Preference technique is the conventional approach to generate data. It relies on observed or reported data of actual behavior. Stated preference technique is a new data generation method. It creates transportation scenarios using hypothetical data. Conventional studies favor the use of revealed reference. However, full description of advantages and weaknesses of using revealed preference technique is not available in literature, neither point-to-point comparison between stated preference and revealed preference techniques. This research contributes to …

Mechanical Behavior Of Polystyrene Foam Bead Lightweight Concrete, Hai-Ying Ni

Theses

This thesis is designed to investigate the effect of porosity on the mechanical properties (strength and modulus) of concrete, and to evaluate the effect of silica fume on the mechanical properties of the polystyrene foam bead lightweight concrete. In this research we made the lightweight concrete by using polystyrene foam beads as light weight aggregate and studied its mechanical properties in detail. Due to the near zero density and modulus of foam beads, we were able to consider it as "porosity". We could then control porosity in concrete by varying foam bead volume fraction.

In our experiments we used the …

Thermal Design Guide For Exterior Walls, Steel In Residential Construction Advisory Group

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

No abstract provided.

Steel Deck Institute Design Manual For Composite Decks, Form Decks, Roof Decks, And Cellular Deck Floor Systems With Electrical Distribution, Steel Deck Institute

Steel Deck Institute (SDI) Specifications and Manuals (1939 - present)

No abstract provided.

Steel Deck Institute Diaphragm Design Manual Second Edition, Larry D. Luttrell

Steel Deck Institute (SDI) Specifications and Manuals (1939 - present)

This manual has evolved from the first edition of the Steel Deck Diaphragm Design Manual (DDM01) and is based on research, testing and analysis done at West Virginia University since 1965. That work, sponsored by the Steel Deck Institute and its member companies, is under the direction of Dr. larry D. Luttrell who is the technical advisor to the Steel Deck Institute. The Institute is very grateful to Dr. Luttrell for his un~iring efforts and continued interest in this project.

Compression Response Of Cracked Reinforced Concrete, Abdeidjelil Belarbi, Thomas T.C. Hsu

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

No abstract provided.

Ultrasonic Detection Of A Plastic Hinge In Bolted Timber Connections, David Pollock, Donald A. Bender, Don E. Bray, James T P Yao

Faculty Publications - Biomedical, Mechanical, and Civil Engineering

Connections between structural members are critical elements that typically govern the performance of structural systems; hence, techniques for monitoring the condition of connections are needed to provide early warning of structural damage. Plastic hinge formation in fasteners frequently occurs in timber connections when the yield capacity is exceeded. An innovative pulse echo testing technique was developed for detecting the formation of a plastic hinge in bolted timber connections and estimating the associated magnitude of connection displacement. A shift in overall signal centroid proved to be the best flTedictor of plastic hinge formation, with a coefficient of determination (R2) of 0.9. …

Teaching Civil Engineering Design: Observations And Experiences, Charles Darwin Morris, Roger A. Laboube

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

Civil engineering design is an inspired activity. It offers the engineer a high degree of autonomy to conceive or create a unique, state-of-the-art, functional, costeffective facility. Civil engineering design calls on the talent of the engineer to balance the client's end-use requirements and financial resources, with the safety ofthe occupants. Because the process of engineering design has such a vast degree of freedom, teaching the concepts inherent in design is a very challenging, and at times frustrating, endeavor. The present paper discusses the many facets of the senior design course developed at the University of Missouri- Rolla to include a …

Edge Strength Of Window Glass By Mechanical Test, Abdeidjelil Belarbi

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

No abstract provided.

Impact Of Erosion, Mass Wasting, And Sedimentation On Human Activities In The Río Grande Basin, Jujuy Province, Argentina, Waldo Chayle, William J. Wayne

Department of Earth and Atmospheric Sciences: Faculty Publications

Nearly all dry mountainous regions are affected by severe erosion, floods, and debris flows during times of intense precipitation. The lithology, geologic structure, and climate in Jujuy Province, Argentina combine to place at serious risk the people who live along the Río Grande, the major river that drains the east side of the Cordillera Oriental and the west side of the Sierras Subandinas. Nearly all precipitation falls during summer (January–March) with little during the remainder of the year; most of the basin is semiarid to arid, although the southern end has a humid subtropical climate. Relief is great, as much …

Kentucky Traffic Accident Facts 1995 Report, Kentucky Transportation Center, Kentucky State Police

Kentucky Transportation Center Research Report

No abstract provided.

Personal Computer (Pc) Program For Analysis Of Embankments With Tensile Elements, Mikhail E. Slepak, Tommy C. Hopkins

Kentucky Transportation Center Research Report

UKSLOPE is a comprehensive, PC-based, slope stability computer program that can be used to design and analyze reinforced and unreinforced earth structures. The computer program consists of two parts: limit equilibrium models and a computerized method for determining the spacing, length, Md number of tensile reinforcement elements. The design of reinforcement elements generally follows guidelines developed by the Tensar® Corporation. However, some modifications and improvements to the original methods have been made. The slope stability analysis portion of UKSLOPE is based partly on the original mainframe version. The following are the main features of the program:

• UKSLOPE is an extremely …

Methsnotrophic Biodegradation Of Trichloroethylene In A Hollow Fiber Membrane Bioreactor, Carol E. Aziz, Mark W. Fitch, Larry K. Linquist, Jonathan G. Pressman, George Georgiou, Gerald E. Speitel

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

Biodegradation of Trichloroethlyene (TCE) in a Hollow Fiber Membrane Bioreactor Was Investigated using a Mutant of the Methanotrophic Bacteria, Methylosinus Trichosporium 0B3b. Contaminated Water Flowed through the Lumen (I.e., Fiber Interior), and the Bacteria Circulated through the Shell Side of the Membrane Module and an External Growth Reactor. in Mass Transfer Studies with a Radial Cross-Flow Membrane Module, 78.3-99.9% of the TCE Was Removed from the Lumen at Hydraulic Residence Times of 3-15 Min in the Lumen and the Shell. in Biodegradation Experiments, 80-95% of the TCE Was Removed from the Lumen at Hydraulic Residence Times of 5-9 Min in …

Locally Weighted Polynomial Regression: Parameter Choice And Application To Forecasts Of The Great Salt Lake, Upmanu Lall, Young-Ii Moon, Ken Bosworth

Reports

Relationships between hydrologic variables are often nonlinear. Usually the functional form of such a relationship is not known a priori. A multivariate, nonparametric regression methodology is provided here for approximating the underlying regression function using locally veighted polynomials. Locally weighted polynomials consider the approximation of the target function through a Taylor series expansion of the function in the neighborhood of the point of estimate. Cross validatory procedures for the selection of the size of the neighborhood over which this approximation should take place, and for the order of the local polynomial to use are provided and shown for some simple …

A User’S Guide For By Product And Discarded Material Utilization In Highway Construction And Maintenance, Kamyar C. Mahboub, David Q. Hunsucker

Kentucky Transportation Center Research Report

This report presents a user's guide for an expert decision-making system that utilizes findings of an extensive literature search and review conducted as part of this study. The literature search and review were conducted to determine current attitudes and document available technical data relative to the use of recyclable and recoverable materials in highway construction and maintenance activities. Specifically, the literature search focused upon the engineering, economic, and performance aspects of using recyclable and recoverable materials in highway construction and maintenance projects. The effort centered upon asphalt and Portland cement concrete pavement recycling, discarded tire recycling, reuse of paint removal …

Construction Resource Allocation Using A Genetic Algorithm, Siripong Malasri, Jennifer R. Martin

Journal of the Arkansas Academy of Science

A proper allocation of limited resources (men, machines, materials, and money) is critical in a construction project. Traditionally, resource allocation problems have been solved using methods in operations research (OR), such as mathematical programming. In recent years, genetic algorithms (GA) have emerged as an effective optimization methodology. One major advantage of the GA approach over the OR approach is that the GA approach is universal for various types of optimization problems, unlike the OR approach which varies depending on the types of problems at hand. This paper shows an application of GA to a resource allocation problem in the construction …

An Evaluation Of Lane Closure Strategies For Interstate Work Zones, Raktim Pal, Kumares C. Sinha

JTRP Technical Reports

A systematic procedure was developed in the present study that can be used to make a decision regarding the appropriate lane closure strategy at a particular interstate work zone. Four criteria were identified which influence such a decision, namely user travel time and vehicle operating cost, traffic control cost, safety, and contractors’ convenience. The influences of these criteria were aggregated using the Analytic Hierarchy Approach. The procedure developed in the present study is systematic in nature, simple to use and sensitive to the policy adopted by a transportation agency. A computer program, LANECLOSE, was developed which can be readily used …