Engineering Commons^™

Long Span, Prestressed Concrete Bridge Construction, H. J. Stockinger

Kentucky's Annual Forum on Transportation

No abstract provided.

Luncheon Address [1969], B. E. King

Kentucky's Annual Forum on Transportation

No abstract provided.

General Session Address: Eugene Goss, Eugene Goss

Kentucky's Annual Forum on Transportation

No abstract provided.

Conserving The Natural Environment, Louis S. Clapper

Kentucky's Annual Forum on Transportation

No abstract provided.

General Session Address: Robert G. Bartlett, Robert G. Bartlett

Kentucky's Annual Forum on Transportation

No abstract provided.

Twenty-First Kentucky Highway Conference Committee, Kentucky Transportation Center

Kentucky's Annual Forum on Transportation

No abstract provided.

Weighing Vehicles In Motion [1969], University Of Kentucky Research Foundation

Kentucky Transportation Center Research Report

An agreement between the Kentucky Department of Highways and the University of Kentucky Research Foundation, dated March 15, 1969, extended and continued research on Weighing Vehicles in Motion. The agreement contained these objectives of the continuing research:

"The services provided by the FOUNDATION shall be within the scope of the objectives outlined in the original proposal and made a part of the original contract (Research Project KYHPR-61-27, Development of an Electronic Means of Weighing Vehicles in Motion, a part of the DEPARTMENT'S Work Program, HPR-1, Part II). The research shall consist of, but not limited to, the following:

A. Furnishing …

This Study Consisted Of A Laboratory Investigation Of The Penetration Behavior Of A Footing Supported In A Vibrating Dry Sand, And Located Below The Surface. A Laboratory Model Was Designed To Simulate These Conditions And Testing Was Conducted To Obtain Data Relating The Magnitude Of Acceleration Of Vibration To The Rate Of Penetration And The Magnitude Of Resistance To Penetration Of A Plunger. Accelerations Ranged Between Zero And 1.5 Times The Acceleration Due To Gravity., Baburao Kasmalkar

Civil Engineering ETDs

This study consisted of a laboratory investigation of the penetration behavior of a footing supported in a vibrating dry sand, and located below the surface. A laboratory model was designed to simulate these conditions and testing was conducted to obtain data relating the magnitude of acceleration of vibration to the rate of penetration and the magnitude of resistance to penetration of a plunger. Accelerations ranged between zero and 1.5 times the acceleration due to gravity.

Channel And Z-Sections Braced By Diaphragms, Nuri Celebi, George Winter

CCFSS Library (1939 - present)

The behavior of thin-walled cold formed channel and Z-sections, braced on their upper flange by light-gage steel diaphragms under static loading is studied. The objective of the study is to obtain mathematical solutions, to verify these solutions by tests, and to derive design formulations for the bending behavior of channel and Z-section beams with various boundary conditions. This type of structural element is encountered as purlins and girts to support the roof cover and siding of metal buildings. The roof cover is connected to the upper flange of the purlins and gives rise to the case of braced compression flange …

Engineering Geognosy Of Warren County, Jerry G. Pigman, Tommy C. Hopkins

Kentucky Transportation Center Research Report

Engineering soils and geologic maps are proving to be invaluable to engineers, industrial leaders, community planners, and administrators during the preliminary stages of planning and site selection. Quantitative engineering data on soils and geological formations, and the interpretation of these data, are important factors to consider in developing the best land-use plans and providing stable foundations for highways, buildings, and other structures, such as dams. Information of this type, when available, is being used by public and private organizations in planning urban development. Engineering soils and geologic maps can be used to great advantage in four major ways by planners …

Grooving Pavement Centerlines For Lane Demarcation, Ronald D. Hughes, Gordon R. Garner

Kentucky Transportation Center Research Report

Lane demarcation is conventionally accomplished by use of white traffic paint placed as a skip line. Most traffic paints are beaded by premixing glass beads in the paint, by drop-on applications, or a combination of the two. The retrodirective properties of the beads greatly enhance nighttime visibility during dry weather; however, visibility of the lines is practically nil during wet nighttime driving. Submerged beads cannot redirect the light when the need for guidance is mosL critical. Thermoplastic striping materials have been used to varying degrees of success by numerous agencies. Wet nighttime visibility of thermoplastics, as experienced in Kentucky, is …

Selected Features Of Kentucky Geology From Lexington To Pineville, Herbert F. Southgate, Tommy C. Hopkins, Gordon D. Scott

Kentucky Transportation Center Research Report

Kentucky has been disturbed by two major catastrophic events. The major portion of the state was upheaved to what is referred to as the Cincinnati Anticline, and erosion has resulted in forming of several physiographic regions, four of which will be traversed on this trip--namely, the Inner Blue Grass region, the Outer Blue Grass region, the Knobs, and the Eastern Coal Fields. The second major catastrophic event was the Appalachian folding, of which the Pine Mountain Overthrust and its faulting affects the southeastern Kentucky area.

The Inner Blue Grass region contains the lowest exposed geologic formation in Kentucky which is …

Engineering Geognosy Of Boyd County, Tommy C. Hopkins, Jerry G. Pigman

Kentucky Transportation Center Research Report

Engineering soils and geologic maps are proving to be invaluable tools of engineers, industrial leaders, community planners, and administrators during tbe preliminary stages of planning and site selection for major construction projects and the development of plans to use nature's basic resource--the land. Quantitative engineering data for soils and geological formations, and the interpretation of tbese data, are important factors to consider in the best land-use plans and in providing stable foundations and proper usage of earth materials for highways, buildings, and other earth structures. Engineering soils and geologic maps can be used to great advantage by planners and engineers …

A Preliminary Evaluation Of Mounds To Divert Wayward Vehicles Away From Rigid Obstructions, Gordon R. Garner, J. B. Venable

Kentucky Transportation Center Research Report

In the summer of 1965, the first fatality report involving an interstate median bridge pier in Kentucky caused concern among state and national officials for the safety of motorists who perchance or otherwise enter upon a collision course toward an unprotected bridge pier. A consensus of opinion seemed to indicate that some form of attenuation or deflection device was necessary.

Early innovations employed various short guardrail configurations to deflect wayward vehicles from the piers. The use of small, short sections has since evolved until present methods include surrounding the bridge pier with several hundred feet of guardrail, including ramped-end treatment …

Large Deflection Analysis Of Laterally Restrained Reinforced Concrete Slabs, Satwant Singh Rihal

Civil Engineering ETDs

This dissertation is an attempt to analytically predict the large deflection behavior of orthogonally reinforced concrete slabs. The problem considered is that of a laterally restrained, simply supported square slab under uniform loading. The range of loading considered is from zero load to the load at which yielding first commences in the steel reinforcement.

This problem is first formulated using the classical large deflection theory of homogeneous plates. This formulation is based on a constant overall stiffness for the entire slab.

A modified large deflection theory is next developed for reinforced concrete slabs. In this theory concrete on the tension …

Cold-Rolled Austenitic Stainless Steel: Materials Properties And Structural Performance, George Winter, S. T. Wang

CCFSS Library (1939 - present)

The cold reduction in thickness of austenitic stainless steel sheet brings about the following significant characteristics of material properties: 1) higher strength with an increasing amount of cold working, 2) more pronounced anisotropic material properties with increasing cold working, 3) stress strain relations different in tension and compression and depending on directions, and 4) nonlinear stress strain curves with relatively low elastic limits, especially in longitudinal compression. In addition, local buckling is encountered in thin walled structural members. These are the problems associated with the structural design of stainless steel members. The purpose of this investigation is to develop the …

Accidents At Median Crossovers, Gordon R. Garner

Kentucky Transportation Center Research Report

Safety improvements are often controversial subjects, especially when the subject is highways. Judgments must be made weighing lives and injuries against the hard realities of financing the construction and maintenance of highway systems. Median crossovers on rural and urban freeways and expressways are controversial design features. State police and maintenance forces claim that median crossovers are necessary and essential for their work and that more frequent location of crossovers is desirable. Engineers involved with highway safety maintain that crossovers create accidents, are not necessary, and should be eliminated. When working on an accident study evaluating median type, it became obvious …

Lateral Distribution Of Traffic On A Four-Lane And Six-Lane Section Of I 75 South Of Covington, Robert L. Lynch, Gary N. Hamby

Kentucky Transportation Center Research Report

With the increased construction of multilane highway facilities in the past few years, the need for establishing corresponding design and traffic operational criteria for these highways has resulted. This is especially true for rural, multilane facilities, since few of these highways are not, as yet, operating at a critical level of traffic service.

One area of traffic operational characteristics that has received very little attention in the past concerns the distribution of vehicles by lane on multilane highways. The capacity for these highways have been defined by the one-directional traffic volume rather than by the individual lane volumes. The distribution …

The Bump At The End Of The Bridge, Tommy C. Hopkins, Robert C. Deen

Kentucky Transportation Center Research Report

The nature and causes of the differential settlements between a bridge deck and the adjoining highway approach pavement have been the subject of an increasing number of investigations in recent years. This settlement of the highway approach pavement not only presents a hazardous condition to rapidly moving traffic, but creates a rough and uncomfortable ride. These defects of the pavement surface require costly maintenance and, where a heavy traffic flow exists, the maintenance operation may tend to impede the normal flow.

Bridge abutments in Kentucky are usually founded on relatively a stable foundation such as rock or point-bearing piles to …

The Irish Plumbing And Heating Engineer, June 1969 (Complete Issue)

Building Services Engineering

No abstract provided.

Military Environics - Water And Waste, James Anthony Mahoney

Civil Engineering ETDs

This thesis summarizes the activities of the United States Military Services effort, in the areas of water supply, waste water treatment, and solid waste disposal for personnel of the Armed Forces and their dependents. This thesis surveys the state-of-the-art of the present sanitary facilities in the United States and abroad as associated with the military environment. Chapter I compares the responsibilities of the military installation engineer to that of a municipal public works director. Discussed are the service laboratories and their locations. Chapter II includes supply, treatment, design, distribution and storage of water. It is concluded with a reference section …

Aspects Of The Effects Of Cold-Forming On The Properties And Performance Of Light-Gage Structural Members, Jairo Uribe, George Winter

CCFSS Library (1939 - present)

INTRODUCTION General Background Cold-Formed Steel Construction constitutes today an industry of significant importance. Its products supplement the usual hot-rolled steel structural members and can be divided into two broad categories: a) structural sections whose main purpose is to carry loads, and b) panels and decks which in addition should provide useful surfaces or serve other functions. Cold-formed steel structural members are made of hot rolled or cold reduced sheet or strip steel by any of the cold-forming methods described below. Thicknesses range in general from No. 28 Gage (0.0149 in.) to No. 10 Gage (0.1345 in.) but some formed shapes …

Formulation Of A Mathematical Model For The Allocation Of Colorado River Waters In Utah, Rick L. Gold

All Graduate Plan B and other Reports, Spring 1920 to Spring 2023

This report is linked with the work done in fulfillment of the first objective of a research project now underway at the Utah Water Research Laboratory. The project, entitled "Application of Operations Research Techniques for Allocation of Colorado River Waters in Utah," is a matching fund grant by The Office of Water Resources Research of the United States Department of the Interior. The project has the following objectives: (1) formulate the mathematical model of that part of the state that can receive Colorado River water, (2) optimize the allocation model under different demand levels and study the economic effects of …

A Study Of The Aerobic Treatment Characteristics Of The Raffinates From A Reverse Osmosis Waste Water Reclamation Plant., Joseph Charles Jennett

Civil Engineering ETDs

Water Supply

In the United States today the problem of pollution of our surface water is an ever increasing one. Conventional processes of treating waste water are approaching their effective limit in removing pollutants. Both the population and the per capita consumption of water are increasing. More and more often the idea of complete water reclamation is coming under consideration.

The Irish Plumbing And Heating Engineer, May 1969 (Complete Issue)

Building Services Engineering

No abstract provided.

A Study Of Precipitation Characteristics For Utah, Tsing-Yuan Chang

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Data on monthly precipitation for three areas of Southern Utah--Beaver, Cedar City and Ephraim--and three areas of Northern Utah--Salt Lake City, Ogden and Logan--where a series of measuring stations were arranged as traverses from the valleys to the mountain tops; were assembled and analyzed.

The relationships between elevation and precipitation amounts were shown. The Southern Utah stations were drier at the same elevations than the Northern Utah stations and the differences became greater as the elevations increased. There was a close correlation between the high elevation and low elevation stations in the same traverse even with the above divergence.

A …

The Irish Plumbing And Heating Engineer, March 1969 (Complete Issue)

Building Services Engineering

No abstract provided.

Analysis Of Traffic Loads On Bridges: Report Ii Characteristics Of Traffic On Ohio River Bridges - 1968, Robert L. Lynch

Kentucky Transportation Center Research Report

The recent bridge disaster at Point Pleasant, West Virginia, has renewed concern about the mechanism of material fatigue as a possible cause of catastrophic failure of bridge structures. A reasonable methodology for evaluating the fatigue condition of the highway bridge requires a knowledge of the distribution of traffic loads utilizing the facility during the analysis period. The accuracy of such an analysis is dependent on the accuracies of the input data -- material fatigue properties and traffic characteristics. The more critical of the above parameters, with respect to accuracy, appears to be traffic characteristics. This is especially true of vehicle …

The Irish Plumbing And Heating Engineer, April 1969 (Complete Issue)

Building Services Engineering

No abstract provided.

Further Investigation Of Light Gage Steel Forms As Reinforcement For Concrete Slabs, C. E. Ekberg Jr., R. M. Schuster, Max L. Porter

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

No abstract provided.