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Articles 11461 - 11490 of 11779

Full-Text Articles in Engineering

Deflections Of Two-Way Slabs, Gerald C. Godzwon Jan 1960

Deflections Of Two-Way Slabs, Gerald C. Godzwon

Masters Theses

"A reinforced concrete member is by no means a truly elastic member, hence all ordinary deflection calculations relating to it, whichever method, are approximate. By the use of model study actual reinforced concrete slab models, of different end conditions, were built and tested for deflections under uniform loadings. Theoretical and actual deflection of reinforced concrete slabs are compared. The results of these tests indicate that the theoretical deflection equations may be 60 to 80 percent in error when applied to reinforced concrete slabs"--Abstract, page 2.


Designing Fine Bituminous Mixtures For High Skid Resistance, Jack E. Stephens, William Harner Goetz Jan 1960

Designing Fine Bituminous Mixtures For High Skid Resistance, Jack E. Stephens, William Harner Goetz

JTRP Technical Reports

No abstract provided.


Locating Slippery Highway Sites By Accident Analysis : Technical Paper, Vergil G. Stover, Harold L. Michael Jan 1960

Locating Slippery Highway Sites By Accident Analysis : Technical Paper, Vergil G. Stover, Harold L. Michael

JTRP Technical Reports

No abstract provided.


Strength And Volume Change Characteristics Of A Bituminous Mixture Under Triaxial Testing, James Hamilton Schaub Jan 1960

Strength And Volume Change Characteristics Of A Bituminous Mixture Under Triaxial Testing, James Hamilton Schaub

JTRP Technical Reports

No abstract provided.


Evaluation Of Major Urban Intersections, William Walter Schenler Jan 1960

Evaluation Of Major Urban Intersections, William Walter Schenler

JTRP Technical Reports

No abstract provided.


Photogrammetric Measurement Of Final Pay Quantities In Highway Construction : Technical Paper, Russel R. Johnson, Robert Douglas Miles Jan 1960

Photogrammetric Measurement Of Final Pay Quantities In Highway Construction : Technical Paper, Russel R. Johnson, Robert Douglas Miles

JTRP Technical Reports

No abstract provided.


Design Of A Pressure Sensitive Cell And Model Studies Of Pressures In The Subgrade Of A Flexible Pavement System : Technical Paper, Thurmul Francis Mcmahon, Eldon J. Yoder Jan 1960

Design Of A Pressure Sensitive Cell And Model Studies Of Pressures In The Subgrade Of A Flexible Pavement System : Technical Paper, Thurmul Francis Mcmahon, Eldon J. Yoder

JTRP Technical Reports

No abstract provided.


Design And Construction Of Hydraulic Flume And Backwater Effects Of Semi-Circular Constrictions In A Smooth Rectangular Channel : Progress Report No. 2, H. J. Owen Jan 1960

Design And Construction Of Hydraulic Flume And Backwater Effects Of Semi-Circular Constrictions In A Smooth Rectangular Channel : Progress Report No. 2, H. J. Owen

JTRP Technical Reports

No abstract provided.


The Plastic Design Of Steel Cofferdam, Robert O. Disque May 1959

The Plastic Design Of Steel Cofferdam, Robert O. Disque

Theses

The fundamental purpose of this thesis is to employ the plastic theory in the design of a hypothetical steel sheet pile cofferdarm. Prior to undertaking this work, the author had had no previous experience with the plastic theory. Therefore, a portion of this thesis is devoted to the development of the fundamentals necessary for the actual design computations.

The theory of plastic analysis has been used as far back as the 1920's in Hungary for the structural design of apartment buildings. It is, however, only in recent years that the theory has been utilized to a significant degree in this …


Design Of Vierendeel Trusses, Richard Denis Pearson Jan 1959

Design Of Vierendeel Trusses, Richard Denis Pearson

Masters Theses

"The Vierendeel Truss, or Rigid Frame Truss, was first introduced by Professor Arthur Vierendeel in Belgium at the beginning of the century. The Vierendeel Truss differs from the more common triangulated truss in that it contains no diagonal members. The members of the truss are joined rigidly together and each member is required to transmit bending, shear and direct stress.

Professor Vierendeel claimed that Vierendeel Trusses are 20 to 30 percent cheaper than the conventional type of truss. This statement has been challenged by many who believe that this type of truss is fundamentally inferior to the more conventional type. …


Field Application Of The Membrane Filter Method For Bacteriological Quality Determination Of Water, Charles Liston Gambill Jan 1959

Field Application Of The Membrane Filter Method For Bacteriological Quality Determination Of Water, Charles Liston Gambill

Masters Theses

"The purpose of this thesis is to demonstrate the definite advantages to be realized when using the membrane filter method as an accepted procedure for the bacteriological analysis of a water; and specifically when used under emergency or field conditions such as military units in the field. These same advantages would apply to Civil Defense and other such agencies when operating under emergency or field conditions.

Data from actual tests showing techniques, equipment and procedures used and augmented by other data available from research papers will be utilized"--Introduction, page 2.


Design Of Plain Concrete Runways And Taxiways Of A Class 4 Airport, Erkmen Erkmen Jan 1959

Design Of Plain Concrete Runways And Taxiways Of A Class 4 Airport, Erkmen Erkmen

Masters Theses

"This thesis is a study for determining the most economical design for the pavements of Adana Airport. It is a study of redesigning efficient and safe runways and necessary taxiways for a future service life of thirty years.

Adana is Turkey’s 6th largest city. It is a growing city. An airport in Adana also serves tor industrial purposes, serves for transcontinental airway systems. In Adana there is an important Nato Base and in a future war such an airport can be used for military purposes. For these reasons, it was decided to construct a class 4 airport* for the city. …


The Effects Of Fly-Ash On Dynamic Modulus Of Elasticity Of A Concrete Mortar, Bill L. Atchley Jan 1959

The Effects Of Fly-Ash On Dynamic Modulus Of Elasticity Of A Concrete Mortar, Bill L. Atchley

Masters Theses

"Over the last few years an increasing amount of interest has been shown in the use of prestressed concrete. As is true in many new methods of design or construction, the properties of existing materials to be used sometimes fail to meet all the desirable characteristics, and certain modifications might be advantageous. This is certainly true of prestressed concrete design and construction, in which a lower modulus of elasticity accompanied by a minimum loss in strength would be desirable. If a lower modulus of elasticity could be obtained for concrete, a lower prestressing load could be used and still maintain …


Stabilization Of Swelling Clay Soil By Additions Of Calcium Hydroxide And Calcium Oxide, Anthony Diler Jan 1959

Stabilization Of Swelling Clay Soil By Additions Of Calcium Hydroxide And Calcium Oxide, Anthony Diler

Masters Theses

"As a study of all types of stabilization would be very lengthy, it was decided to make the object of this research the determination of the effect of the addition of different percentages of calcium oxide (CaO) and calcium hydroxide Ca(OH)2 on the physical characteristics of a silty swelling sodium montmorillionite clay. The purpose of this addition is to flocculate the clay by utilizing a base exchange between the sodium and calcium ions, and thus change the physical characteristics of the soil. The soil by itself has the characteristics of a fat clay, that is it can be broken …


Triaxial Testing Of Bituminous Mixtures : Technical Report, William Harner Goetz, James Hamilton Schaub Jan 1959

Triaxial Testing Of Bituminous Mixtures : Technical Report, William Harner Goetz, James Hamilton Schaub

JTRP Technical Reports

No abstract provided.


Further Studies Of Deleterious Substances In Indiana Aggregates : Progress Report No. 2, Robert Lee Schuster Jan 1959

Further Studies Of Deleterious Substances In Indiana Aggregates : Progress Report No. 2, Robert Lee Schuster

JTRP Technical Reports

No abstract provided.


The Determination Of Potassium In Cement With Tetraphenylboron, William Lee Dolch Jan 1959

The Determination Of Potassium In Cement With Tetraphenylboron, William Lee Dolch

JTRP Technical Reports

No abstract provided.


Laboratory Research On Pavements Continuously Reinforced With Welded Wire Fabric, Martin J. Gutzwiller, Joseph Lee Waling Jan 1959

Laboratory Research On Pavements Continuously Reinforced With Welded Wire Fabric, Martin J. Gutzwiller, Joseph Lee Waling

JTRP Technical Reports

No abstract provided.


An Analysis Of High Accident Rates : Technical Paper, Harlan H. Blindauer, Harold L. Michael Jan 1959

An Analysis Of High Accident Rates : Technical Paper, Harlan H. Blindauer, Harold L. Michael

JTRP Technical Reports

No abstract provided.


The Feasibility Of Measuring The Moisture Gradients In Concrete Pavement Slabs: Progress Report No. 2, J. Richard Bell Jan 1959

The Feasibility Of Measuring The Moisture Gradients In Concrete Pavement Slabs: Progress Report No. 2, J. Richard Bell

JTRP Technical Reports

No abstract provided.


The Effects Of Freezing And Thawing On Prestressed Concrete : Technical Paper, Fouad Elyas Musleh, Martin J. Gutzwiller Jan 1959

The Effects Of Freezing And Thawing On Prestressed Concrete : Technical Paper, Fouad Elyas Musleh, Martin J. Gutzwiller

JTRP Technical Reports

No abstract provided.


A Laboratory Investigation Of The Phenomenon Of Friction As Applied To Fine-Textured Bituminous Paving Mixtures, Jack E. Stephens Jan 1959

A Laboratory Investigation Of The Phenomenon Of Friction As Applied To Fine-Textured Bituminous Paving Mixtures, Jack E. Stephens

JTRP Technical Reports

No abstract provided.


Annual Report Of The Assistant Director, 1958-1959, Harold L. Michael Jan 1959

Annual Report Of The Assistant Director, 1958-1959, Harold L. Michael

JTRP Technical Reports

No abstract provided.


The Effects Of Freezing And Thawing On Pre-Stressed Concrete, Fouad Elyas Musleh Jan 1959

The Effects Of Freezing And Thawing On Pre-Stressed Concrete, Fouad Elyas Musleh

JTRP Technical Reports

No abstract provided.


Hydraulics Of River Flow Under Arch Bridges: A Progress Report : Technical Paper, H. J. Owen, Attila Arpad Sooky, S. T. Husain, J. W. Delleur Jan 1959

Hydraulics Of River Flow Under Arch Bridges: A Progress Report : Technical Paper, H. J. Owen, Attila Arpad Sooky, S. T. Husain, J. W. Delleur

JTRP Technical Reports

No abstract provided.


Application Of The Hveem Stabilometer To The Testing Of Open-Graded Bituminous Mixtures, R. A. Hannan Jan 1959

Application Of The Hveem Stabilometer To The Testing Of Open-Graded Bituminous Mixtures, R. A. Hannan

JTRP Technical Reports

This laboratory investigation was conducted with the purposeof determining the applicability of the Hveem Stabilometer to the testing of open-graded bituminous mixtures.

The study was divided into two major sections. The first of these investigated the validity of the Stabilometer displacement measurement when applied to open-graded specimens having large surface air voids. The second portion of the study had two specific purposes: (l) to investigate the stress-strain characteristics of open-graded mixturestested in the Hveem Stabilometer and (2) to determine whether surface voids on the ends of Stabilometer test specimens influenced Hveem stability values.

To check the validity of the displacement …


The Effect Of Density On The Repeated-Load Strength Properties Of Bituminous Concrete, J. H. Dennis Jan 1959

The Effect Of Density On The Repeated-Load Strength Properties Of Bituminous Concrete, J. H. Dennis

JTRP Technical Reports

No abstract provided.


Studies Of Limestone Aggregates By Fluid-Flow Methods : Technical Paper, William Lee Dolch Jan 1959

Studies Of Limestone Aggregates By Fluid-Flow Methods : Technical Paper, William Lee Dolch

JTRP Technical Reports

No abstract provided.


Estimation Of Highway Needs For County Primary Road Systems By Sample Survey Methods, Donald O. Covault, Harold L. Michael Jan 1959

Estimation Of Highway Needs For County Primary Road Systems By Sample Survey Methods, Donald O. Covault, Harold L. Michael

JTRP Technical Reports

No abstract provided.


Structural Analysis By Minimum Strain Energy Methods, John B. Heagler Jan 1958

Structural Analysis By Minimum Strain Energy Methods, John B. Heagler

Professional Degree Theses

"Analysis of structure has its conception for the engineer early in his formal education and follows a set sequency from solving for equilibrium in simple beams and free bodies to more complicated solutions for stresses and deflections in multiply redundant structures.

Difficulty arises for the engineer when he loses the sequence of the subject and finds himself memorizing formulas and methods of solution without a clear and concise understanding of the underlying fundamental principles involved in arriving at these formulae and methods of solution.

The Aircraft Structural Analyst finds himself in a relatively new field of engineering structural design. Here …