Engineering Commons^™

Post-Buckling Shear Strength Of A Cold-Formed Steel Joist, G. T. Suter, J. L. Humar

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

No abstract provided.

European Recommendations For Cold-Formed Sheet Steel In Building, E. R. Bryan

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

No abstract provided.

Compressional Behaviour Of Thick Plate Elements, J. Rhodes, I. H. Marshall

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

No abstract provided.

Doubly Corrugated Barrel Cold-Formed Steel Shells, G. L. Pierce, W. D. Siddall, George Adbel-Sayed

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

No abstract provided.

Analysis Of Closed Section Thin-Walled Beams Subjected To Partially Restrained Warping, J. Ergatoudis, J. Nuttall, T. H. G. Megson

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

No abstract provided.

Experimental Study Of The Behavior Of Cable Trays Used In Nuclear Power Plant Applications, Suresh G. Pinjarkar

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

No abstract provided.

Simple Design Analysis Of Lipped Channel Columns, J. Rhodes, J. Loughlan

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

No abstract provided.

Behavior Of Cold-Formed Steel Studs In Fire Tests, K. H. Klippstein

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

No abstract provided.

Engineering Education On Cold-Formed Steel Design, Paul A. Seaburg

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

No abstract provided.

Thermal Gasification Of Densified Sewage Sludge And Solid Waste, Samuel A. Vigil, George Tchobanoglous

Civil and Environmental Engineering

The disposal of sewage sludge in an economic and environmentally acceptable manner is a problem common to all communities that have municipal wastewater treatment facilities. Similarly, all communities are faced with the disposal of increasing quantities of solid waste. The co-disposal of sludge and solid waste in a common facility is a potential solution to both of these problems. The results of an experimental program to verify the feasibility of the gasification process for the co-disposal of densified sludge and source separated solid waste are presented in this paper.

The Operation Of An Electrical Heating System For Bridge Decks, Wm. Vernon Azevedo, Robert C. Deen, James H. Havens

Kentucky Transportation Center Research Report

The 9th-Street interchange with I 64 in Louisville, Kentucky, was designed and constructed with an automated electrical heating system for snow and ice removal. This report summarizes the operation of the heating system during the first four years. The system was capable of keeping the interchange free of ice and snow accumulation. The average daily slab temperature fell below 0°C (32° F) only on a few occasions. The average cost of electrical power for heating the interchange was $883 per day.

The Effect Of Lane And Shoulder Widths On Accident Reductions On Rural, Two-Lane Roads, Charles V. Zegeer, Robert C. Deen, Jesse G. Mayes

Kentucky Transportation Center Research Report

The purpose of the study was to determine the effect of lane and shoulder widths on accident benefits for rural, two-lane roads and also to determine the expected cost effectiveness of widening lanes and shoulders. Information concerning geometries, accidents, and traffic volumes was obtained for over 25,000 km (15,000 miles) of roads.

Run-off-road and opposite-direction accidents were the only accident types found to be associated with narrow lanes and shoulders. Wide lanes had accident rates 10 to 39 percent lower than for narrow lanes. Wide shoulders (up to 2.7 m (9 feet)) were associated with the lower accident rates. Criteria …

Interpretation Of Dynamic Pavement Deflections, Gary W. Sharpe, Herbert F. Southgate, Robert C. Deen

Kentucky Transportation Center Research Report

In 1977, a methodology was .developed to evaluate pavement performance using dynamic (Road Rater) deflections. Since then, additional research has resulted in modifications ill the procedures. This paper presents the procedures presently used to evaluate flexible pavement structures. Background information is included on various procedures used by others. A sample set of data is presented and evaluated. A discussion is included on how the analyses of dynamic pavement deflections can be used to design overlays and in pavement management.

The Need For A Schema For The Classification Of Transitional (Shale) Materials, Robert C. Deen

Kentucky Transportation Center Research Report

The need for comprehensive information on the characteristics and behavior of earth materials has been recognized for many years, perhaps for as long as significant construction has taken place in and on the surface of the earth. In recent years, however, the magnitude and complexity of engineered construction has greatly increased, resulting in a corresponding increase in the need for information on the engineering properties of soil and rock materials for use in site selection, design, construction, and maintenance of major structures. Probably the most pressing need for such data is for use in preliminary considerations of site selection and …

Evaluation Of The Fhwa Highway Traffic Noise Prediction Procedure (Snap 1) [Oct. 1980], Kenneth R. Agent

Kentucky Transportation Center Research Report

Traffic noise prediction procedures are used in the design of new highways to determine if noise is limited to specific levels. A previous study evaluated the procedure outlined in NCHRP Report 117 and developed a correction factor which was incorporated into Kentucky's noise prediction procedure. This adjusted NCHRP 117 procedure has been used in Kentucky for the past several years. The Federal Highway Administration has developed a new procedure to predict traffic noise levels. The objective of this study was to evaluate the new prediction procedure, designated as SNAP 1.

Comparisons of measured and predicted noise levels showed that predictions …

H & V News

Building Services Engineering

No abstract provided.

Frictional Performance Of Pavements And Estimates Of Accident Probability [Sept. 1980], James L. Burchett, Rolands L. Rizenbergs

Kentucky Transportation Center Research Report

Objectives of this study were to evaluate standard and experimental surfaces throughout Kentucky in terms of skid resistance and effects of traffic, and to provide criteria for judging suitability of these surfaces to satisfy requirements for skid resistance and economics. The effects of traffic were quantified by regression analysis and scatter of data. Criteria included an estimate of accident risks, effects of speed on skid resistance, and seasonal variations in skid resistance.

The analysis indicated that pavements on low volume roads (less than 1,000 vehicles per day) maintained adequate skid resistances. Open-graded friction courses, with the possible exception of sections …

Modulus And Damping Of Asphaltic Concrete Using The Resonant Column, David L. Allen, Robert C. Deen

Kentucky Transportation Center Research Report

When analyzing flexible pavements or predicting their behavior by such means as elastic-layered theory or by finite elements, it is necessary to know the parameters that govern the behavior of the pavement components. One of the most important factors to consider is the modulus of the asphalt bound layers.

In the past two decades, one method that has seen increasing use in the determination of the moduli of engineering materials (particularly soils) is the resonant column. However, its use in determining the moduli cf asphaltic concrete has not been widespread or well documented. In this study, which was part of …

Statewide Survey Of Skid Resistances Of Pavements (1979), Rolands L. Rizenbergs, James L. Burchett

Kentucky Transportation Center Research Report

Statewide survey of skid resistances continued in 1979 with the testing of 3,060 miles (4,930 km) of roads, including interstate and toll roads. During the two-year (1978 and 1979) cycle of testing, over 7,000 miles (11,270 km) of roads have been tested. Altogether, 560 miles (902 km) of roads had an average skid number of 28 or less. These pavements, in particular, should be considered for deslicking.

In 1978 and 1979, 28 percent of the state-maintained roads were surveyed. These roads carried 72 percent of all traffic on state-maintained roads.

H & V News

Building Services Engineering

No abstract provided.

Overlay Recommendations For I 64: Rowan, Carter, And Boyd Counties, Gary W. Sharpe, Herbert F. Southgate

Kentucky Transportation Center Research Report

A method was developed in 1978 for designing asphaltic concrete overlays for flexible pavements. This procedure utilizes Kentucky's theoretical flexible pavement design curves, estimates of pavement fatigue from traffic data, estimates of subgrade strengths, and estimates of the structural capacity of the existing pavement. Overlay designs were recommended for the asphaltic concrete pavement sections of I 64 in Rowan, Carter, and Boyd Counties. Road Rater deflection data were used to estimate the subgrade strength and the effective worth of the pavement structures. Pavement rutting and roughness were also considered in determining the final overlay thicknesses.

Input Guide: Kentucky Soils Data System, William J. Pfalzer

Kentucky Transportation Center Research Report

The Kentucky Soil Data System is a system of information storage intended to be used as both a design and research tool. It contains information relating to soil and rock (parent material) properties and allows for input of precise sample locations. The storage format is presented here. This report is intended primarily to aid in the input of data. A user-oriented report covering what information is available and how requests for information should be made is a forthcoming compliment.

H & V News

Building Services Engineering

No abstract provided.

Rotary Feeder For Solid Particle Injection Into Pressured Fluid System, David T. Kao, Don J. Wood

Civil Engineering Faculty Patents

A rotary feeder for injecting solid particles into a pressurized fluid system is described. The system includes a hopper for receiving particles and a device for transporting the particles from the hopper to a feeder roller. The cylindrical feeder roller includes a plurality of recessed troughs that are positioned at an angle from the axis of the cylindrical roller. Particles are transported from the hopper to the recessed troughs of the feeder roller and are subsequently fed into a venturi section of a solid-liquid slurry pipe system. The rotary feeder for injecting solid particles into a pressurized fluid system is …

Evaluation Of Reversible Lanes (Nicholasville Road; Lexington, Ky), Kenneth R. Agent, Jon D. Clark

Kentucky Transportation Center Research Report

The study involved an evaluation of reversibIe lanes as a method of increasing traffic flow. A unique feature of the system was allowing Ieft turns during the period of reversible flow, which meant that the left-turn lanes had to be moved and the signal displays shifted during operation and without interrupting traffic flow. The evaluation involved a comparison of data taken before and after installation of the reversible lanes. Types of data included delays, volumes, accidents, speeds, traffic conflicts, fuel consumption, and environmental factors.

Installation of the reversible lanes resulted in a significant savings in travel time in the peak …

Safety Improvement Program For Toll Roads, Jerry G. Pigman, Kenneth R. Agent, Joseph D. Crabtree

Kentucky Transportation Center Research Report

This report presents proposed safety improvements for Kentucky's toll roads. The primary methods of identifying needed improvements were an accident analysis and a field inventory. The accident analysis identified specific high-accident spots and sections. Also, accident rates were calculated for each toll road, and the types of accidents which had occurred in the 3-year period were summarized. A separate 10-year analysis of fatal accidents was made. The field inventory was used to identify roadway features which are now substandard and in need of upgrading. Also, high-accident spots and sections were investigated in the field. The benefits and costs for each …

Underground Houses - Alternative For Residential Living, Patrick A. Janssen

Graduate Research Papers

The purpose of this study is to determine if earth sheltered housing may be the trend for the future in residential construction.

H & V News

Building Services Engineering

No abstract provided.

Ute Self-Determination In Setting Tribal Resource Development Policy, Herbert H. Fullerton, Mac Mckee, Roger D. Hansen

Reports

The Ute Indian Tribe of northeastern Utah has large land holdings rich in water and energy resources. Revenues from these sources have created capital that can potentially be used by the Tribe to further develop its resources and expand its agricultural and business enterprises. Realities, however, complicate this simple scenario in that the Tribal goals are broader than pure economic gain and that increased incomes may mean sacrifices in terms of these other goals. The Tribe faces the problem of how best to develop its water resources in a way that best meets its multiplicity of needs.

The research team …

A History Of The Board Of Engineers For Rivers And Harbors, Richard G. Waugh, Judith M. Hourigan

United States Army Corps of Engineers, Omaha District

CHAPTER I: THE BOARD IS ESTABLISHED
Theodore F. Burton • Constituting the Board

CHAPTER II: STARTING BUSINESS
First Board Members • Location • The First Reviews • Early Board Reviews • Public Hearings • Board Meetings • Expenses • Staff

CHAPTER III: THE MISSIONS OF THE BOARD
The Primary Mission • The Review Process • Assigned Missions • Planning Associates Program • Waterborne Commerce Statistics • Permanent International Association of • Navigation Congresses (PIANC) • Foreign Trade Zones • Processing Reports for State and • Washington-Level Agency Review • Former Missions • Marine Design • Transportation Economics • National Capital …