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Articles 10351 - 10380 of 11787

Full-Text Articles in Engineering

Behavior Of Thin-Walled Channel Shaped Reinforced Concrete Columns Under Combined Biaxial Bending And Compression, Subash Yalamarthy May 1984

Behavior Of Thin-Walled Channel Shaped Reinforced Concrete Columns Under Combined Biaxial Bending And Compression, Subash Yalamarthy

Theses

Next to rectangular, circular and L shapes, Channel section may be the most frequently encountered reinforced concrete columns since they can be used as box wall for elevators. Nevertheless, information about the load deformation behavior is not generally available to structural engineers. Most of the investigations have been emphasized on the ultimate strength of column sections under combined biaxial bending and axial compression and the resulting interaction surface. No attention is paid to load deformation behavior.

Current code provisions do not provide adequate guidelines for assessing the strength and ductility of biaxially-loaded reinforced concrete columns. Therefore, this investigation is aimed …


Behavior Of L-Shaped Reinforced Concrete Columns Under Combined Biaxial Bending And Compression, Amar Shah May 1984

Behavior Of L-Shaped Reinforced Concrete Columns Under Combined Biaxial Bending And Compression, Amar Shah

Theses

Combined biaxial and axial compression for L-shaped reinforced concrete short columns is a common design Problem. Current code, provisions and the available design aids do not offer an insight into the determination of strength and ductility of biaxially loaded reinforced concrete column. An experimental and analytical investigation of the moment-deformation behavior of biaxially loaded L-shaped short columns were undertaken. Four 1/2 scaled specimens were tested till failure. Moment-curvature and load-deflection curves were developed from the experimental and the analytical results. The analytical results were obtained using a computer program developed by Hsu (1). From the investigation it is deduced that …


Microcomputer Applications In Construction Layout, P. Emeruwa Anyanwu May 1984

Microcomputer Applications In Construction Layout, P. Emeruwa Anyanwu

Theses

With recent trends in computer technology, its application to the construction industry is attracting more attention. The cost of owning computer was a primary reason for small and medium sized firms not adopting its use. With the advent of micro and minicomputers, the cost have dropped dramatically. Now one can purchase an Apple Computer (the monitor, keyboard, disk drive, and printer) at less than $3,000. This makes it possible for students like me (the poverty class) to afford to own one.

This thesis explores the powerful potentials of the microcomputer and its use as an aid in construction layout. Surveying …


Finite Element Analysis Of The Behavior Of Foundations Over Cavities In Soluble Rocks, Borhan Huang May 1984

Finite Element Analysis Of The Behavior Of Foundations Over Cavities In Soluble Rocks, Borhan Huang

Theses

Soluble rocks contain sinkhole that affect the strength of the rocks. In designing foundations in and on these formation, the effects of cavities have to be taken into account. In this study, an axisymmetric formulation has been developed to study the behavior of circular footings over spherical cavities. Parametric studies have been conducted varying the sizes and locations of openings. An approximate procedure has been employed to generate the stiffness matrix of the system. Error analysis and convergence study of the results have been performed.


Fundy Tidal Power Development : Preliminary Evaluation Of Its Environmental Consequences To The Resources Of The State Of Maine, Bigelow Laboratory For Ocean Sciences Apr 1984

Fundy Tidal Power Development : Preliminary Evaluation Of Its Environmental Consequences To The Resources Of The State Of Maine, Bigelow Laboratory For Ocean Sciences

Maine Collection

Fundy Tidal Power Development : Preliminary Evaluation of Its Environmental Consequences to the Resources of the State of Maine

A Report to the Maine State Planning Office by the Bigelow Laboratory for Ocean Sciences, April, 1984.

"Technical Report No. 35 - Bigelow Laboratory for Ocean Sciences, West Boothbay Harbor, Maine - A Division of Northeastern Research Foundation, Inc."

Contents: Executive Summary / Introduction / Methods / Physical and Biological Consequences / Socio-Economic Consequences / Research Needs / Bibliography / Appendix I. Written Comments on Greenberg Model


Irish H & V News Apr 1984

Irish H & V News

Building Services Engineering

No abstract provided.


Irish H & V News Mar 1984

Irish H & V News

Building Services Engineering

No abstract provided.


Irish H & V News Feb 1984

Irish H & V News

Building Services Engineering

No abstract provided.


A Study Of The Permeability Of Clays Subjected To Organic And Inorganic Permeants, Janardanan O. Uppot Jan 1984

A Study Of The Permeability Of Clays Subjected To Organic And Inorganic Permeants, Janardanan O. Uppot

Doctoral Dissertations

"Two types of clays, a magnesium montrnorillonite and a kaolinite, were subjected to precise permeability tests in specially designed triaxial permeameters, using organic and inorgani c permeants, to study the changes in permeability due to the reaction between clays and permeants. The organic permeants were an acid (acetic acid), a base (aniline), a neutral polar fluid (methanol), a neutral nonpolar fluid (xylene), as well as EDTA and its sodium salt. The inorganic permeants were aqueous solutions of aluminum, magnesium, sodium, calcium, barium and strontium.

The clay samples were prepared by consolidating from slurry; they were subjected to back-pressure saturation and …


The Use Of Foamed Asphalt In Bituminous Stabilization Of Base And Sub-Base Materials And Recycled Pavement Layers, Leonard E. Wood, A. G. Altschaeffl, Christine Marie Beaudoin, Franco Luis Castedo Jan 1984

The Use Of Foamed Asphalt In Bituminous Stabilization Of Base And Sub-Base Materials And Recycled Pavement Layers, Leonard E. Wood, A. G. Altschaeffl, Christine Marie Beaudoin, Franco Luis Castedo

JTRP Technical Reports

No abstract provided.


Development Of A Method For Establishing Resurfacing Priorities For The Pavement Management In Indiana: Volume 1, Executive Summary, Benjamin Colucci-Rios, Kumares C. Sinha, Eldon J. Yoder Jan 1984

Development Of A Method For Establishing Resurfacing Priorities For The Pavement Management In Indiana: Volume 1, Executive Summary, Benjamin Colucci-Rios, Kumares C. Sinha, Eldon J. Yoder

JTRP Technical Reports

No abstract provided.


Development Of A Method For Establishing Resurfacing Priorities For The Pavement Management In Indiana: Volume 2, Study Procedures And Results, Benjamin Colucci-Rios, Kumares C. Sinha, Eldon J. Yoder Jan 1984

Development Of A Method For Establishing Resurfacing Priorities For The Pavement Management In Indiana: Volume 2, Study Procedures And Results, Benjamin Colucci-Rios, Kumares C. Sinha, Eldon J. Yoder

JTRP Technical Reports

No abstract provided.


Energy Conservation And Cost Savings Related To Highway Routine Maintenance : Pavement Maintenance Cost Analysis: Interim Report, Essam Abdel-Aziz Sharaf, Kumares C. Sinha Jan 1984

Energy Conservation And Cost Savings Related To Highway Routine Maintenance : Pavement Maintenance Cost Analysis: Interim Report, Essam Abdel-Aziz Sharaf, Kumares C. Sinha

JTRP Technical Reports

No abstract provided.


Development And Use Of A Management Information System To Identify Areas Of Routine Maintenance Productivity Improvement : Interim Report, V. Alan Sanderson, Kumares C. Sinha Jan 1984

Development And Use Of A Management Information System To Identify Areas Of Routine Maintenance Productivity Improvement : Interim Report, V. Alan Sanderson, Kumares C. Sinha

JTRP Technical Reports

No abstract provided.


Slope Stability Analysis With Stabl4, C. W. Lovell, Sunil Sharma, James Richard Carpenter Jan 1984

Slope Stability Analysis With Stabl4, C. W. Lovell, Sunil Sharma, James Richard Carpenter

JTRP Technical Reports

No abstract provided.


Structural Behavior Of Cold-Formed Steel Beam Webs Subjected To Partial Edge Loading, Shin-Hua Lin Jan 1984

Structural Behavior Of Cold-Formed Steel Beam Webs Subjected To Partial Edge Loading, Shin-Hua Lin

Masters Theses

"An extensive experimental investigation has been conducted to study the load-carrying capacity of cold-formed steel web elements subjected to partial edge loading which may cause web crippling or web buckling. In this experimental work emphasis was concentrated on the cold-formed steel structural members having single unreinforced webs with stiffened flanges.

In 1980, American Iron and Steel Institute (AISI) revised its "Specification for the Design of Cold-Formed Steel Structural Members.” For the design of beam webs, Section 3.5.1 of the AISI Specification provides the design criteria for web crippling. This thesis discusses the experimental work including some specimens with small length-to-depth …


Indiana Highway Cost Allocation Study; A Report On Methodology : Interim Report, Kumares C. Sinha, Tien Fang Fwa, E. C. Ting, Robert M. Shanteau, Mitsuru Saito, Harold L. Michael Jan 1984

Indiana Highway Cost Allocation Study; A Report On Methodology : Interim Report, Kumares C. Sinha, Tien Fang Fwa, E. C. Ting, Robert M. Shanteau, Mitsuru Saito, Harold L. Michael

JTRP Technical Reports

No abstract provided.


Feasibility Of Harvesting Hay On Highway Right-Of-Way: Yield, Quality, And Load Content Of Forage Along Indiana Highway, Kumares C. Sinha, Keith Douglas Johnson, Jerry H. Cherney, David C. Petritz, Kang Hu, Jeffrey Allen Mullen, W. Jacobs Jan 1984

Feasibility Of Harvesting Hay On Highway Right-Of-Way: Yield, Quality, And Load Content Of Forage Along Indiana Highway, Kumares C. Sinha, Keith Douglas Johnson, Jerry H. Cherney, David C. Petritz, Kang Hu, Jeffrey Allen Mullen, W. Jacobs

JTRP Technical Reports

No abstract provided.


Determination Of The Structural Coefficients Of A Foamed Asphalt Recycled Layer, Wijk Adriaan Van Jan 1984

Determination Of The Structural Coefficients Of A Foamed Asphalt Recycled Layer, Wijk Adriaan Van

JTRP Technical Reports

No abstract provided.


Stabilization Of Slopes Using Piles : Interim Report, Sophia Hassiotis, Jean-Lou Chameau Jan 1984

Stabilization Of Slopes Using Piles : Interim Report, Sophia Hassiotis, Jean-Lou Chameau

JTRP Technical Reports

No abstract provided.


Development Of A Method For Establishing Resurfacing Priorities For The Pavement Management In Indiana: Volume 3, Appendices, Benjamin Colucci-Rios, Kumares C. Sinha, Eldon J. Yoder Jan 1984

Development Of A Method For Establishing Resurfacing Priorities For The Pavement Management In Indiana: Volume 3, Appendices, Benjamin Colucci-Rios, Kumares C. Sinha, Eldon J. Yoder

JTRP Technical Reports

No abstract provided.


The Use Of Fuzzy Set Mathematics In Pavement Evaluation And Management : Interim Report : Executive Summary, Manjriker Gunaratne, A. G. Altschaeffl, Jean-Lou Chameau Jan 1984

The Use Of Fuzzy Set Mathematics In Pavement Evaluation And Management : Interim Report : Executive Summary, Manjriker Gunaratne, A. G. Altschaeffl, Jean-Lou Chameau

JTRP Technical Reports

No abstract provided.


Computational Package For Predicting Pile Stress And Capacity : Interim Report, Francisco Jose Tejidor Jan 1984

Computational Package For Predicting Pile Stress And Capacity : Interim Report, Francisco Jose Tejidor

JTRP Technical Reports

No abstract provided.


An Investigation Of Potential Energy Conservation For Indiana Department Of Highway Buildings, Gary Roderick Smith Jan 1984

An Investigation Of Potential Energy Conservation For Indiana Department Of Highway Buildings, Gary Roderick Smith

JTRP Technical Reports

No abstract provided.


Identification Of Frost Susceptible Aggregate And Their Use In Concrete Or Bituminous Pavements, Marco Antonio Salcedo Jan 1984

Identification Of Frost Susceptible Aggregate And Their Use In Concrete Or Bituminous Pavements, Marco Antonio Salcedo

JTRP Technical Reports

No abstract provided.


Geotechnical Engineering Problems In The Karst Region Of Southern Indiana, Francis T. Adams, C. W. Lovell Jan 1984

Geotechnical Engineering Problems In The Karst Region Of Southern Indiana, Francis T. Adams, C. W. Lovell

JTRP Technical Reports

No abstract provided.


Indiana Highway Cost-Allocation Study, Kumares C. Sinha, Tien Fang Fwa, Essam Abdel-Aziz Sharaf, Ah Beng Tee, Harold L. Michael Jan 1984

Indiana Highway Cost-Allocation Study, Kumares C. Sinha, Tien Fang Fwa, Essam Abdel-Aziz Sharaf, Ah Beng Tee, Harold L. Michael

JTRP Technical Reports

No abstract provided.


Irish H & V News Jan 1984

Irish H & V News

Building Services Engineering

No abstract provided.


State Space Approach To Flood Stage Estimation, Gregory Allen Jones Jan 1984

State Space Approach To Flood Stage Estimation, Gregory Allen Jones

Dissertations and Theses

A flood routing and stage prediction model is developed using the techniques of State Space and Kalman filtering. The governing equation is the physically based hydrologic method of flood routing with the output being an optimal estimate of stage given known inputs of streamflow. These equations are developed in state space and the Kalman filter is employed to estimate the flow and river stage.

The model is applied to the Toutle and Cowlitz Rivers in the State of Washington, where the stage is affected by a shifting bed elevation. With the deterministic inputs at Mayfield Dam on the Cowlitz and …


A Numerical Solution For Three Dimensional Beam Columns In The Elastic Region, Hamid Reza Afghan Jan 1984

A Numerical Solution For Three Dimensional Beam Columns In The Elastic Region, Hamid Reza Afghan

Dissertations and Theses

The three differential equations describing the behavior of the beam columns in three dimensions are derived and presented in finite difference form. A computer model is developed to solve the simultaneous equations in the elastic regions and predict the member behavior.

The computer program is checked by comparing the results obtained from the program with data from other investigators, and classical analytical techniques.