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Articles 10231 - 10260 of 11789
Full-Text Articles in Engineering
A Study Of Failure Modes In Rock Resulting From Pile Penetration, Girish Mehta
A Study Of Failure Modes In Rock Resulting From Pile Penetration, Girish Mehta
Theses
The purpose of this thesis was to physically examine the failure mode of a rock mass as a result of pile penetration. In addition, the static bearing capacity of piles bearing in rock was investigated. This was accomplished in the laboratory by performing model tests using a dynamic pile driving device.
Tests were performed using 1 inch nominal diameter model pipe piles and H-piles. Piles were driven into a simulated rock mass consisting of clay-masonry bricks. Following pile driving, the rock mass was carefully dissected and observations of the failure mode were made.
A new technique was developed to preserve …
Flexural Behavior Of Portland Cement Based Composites Subjected To High Strain Rates, Edward Roland
Flexural Behavior Of Portland Cement Based Composites Subjected To High Strain Rates, Edward Roland
Theses
This investigation studied the modulus of rupture and energy of rupture of mortar, concrete, and steel fiber reinforced mortar at various rates of flexural straining. The strengths of the composites were varied by changing the water cement ratios. Single point flexural loading tests were conducted on 4" x 4" x 20" specimens using a weight dropped from a height of 30" to produce the dynamic loading. Strain rates were varied between 0.1 and 1.9 per second. The inertial effects of acceleration of the specimen were taken into account.
These tests produced data that demonstrated slightly greater ratios of dynamic to …
Sorption Characteristics And Their Effects On Geotechnical Properties Of Illite, Gnanmoorthy Selvakumar
Sorption Characteristics And Their Effects On Geotechnical Properties Of Illite, Gnanmoorthy Selvakumar
Theses
An experimental investigation of the sorption characteristics of phenol, chlorophenol and chlorobenzene on to illite and of the effect of sorption on the geotechnical properties of illite was performed. Various adsorption isotherms have been considered for the equilibrium adsorption study data. It was found that the Freundlich adsorption isotherm closely fits the experimental results. In addition, the results of desorption study indicated that the sorption process for these systems is not completely reversible.
The index properties of illite were found to be influenced by the sorption of contaminants, i.e., the Atterberg limits of illite increased in accordance with increases in …
Failure Surface Of A Square And Rectangular Reinforced Concrete Members [Sic] Under Combined Biaxial Bending And Tension, Ravindra M. Khanapure
Failure Surface Of A Square And Rectangular Reinforced Concrete Members [Sic] Under Combined Biaxial Bending And Tension, Ravindra M. Khanapure
Theses
This thesis describes the development and use of three dimensional strength interaction diagrams of reinforced concrete sections for different loading conditions. It also gives a comprehensive overview of modes of failure surfaces and provides design aids for members subjected to biaxial bending and axial tension. This is the phenomena which is rather overlooked analytically and graphical predictions are made. The computer program provides a special tool for the analysis and fast interation of combination of loadings and moments.
Crack Growth Gages For Monitoring Fatigue Damage : Final Informational Report, Charles Kpakpo Nmai, Mark D. Bowman
Crack Growth Gages For Monitoring Fatigue Damage : Final Informational Report, Charles Kpakpo Nmai, Mark D. Bowman
JTRP Technical Reports
No abstract provided.
Investigation On Latex-Modified Bridge Deck Overlay Concrete, Sidney Diamond
Investigation On Latex-Modified Bridge Deck Overlay Concrete, Sidney Diamond
JTRP Technical Reports
No abstract provided.
Cost Reduction And Increased Efficacy Of Growth Retardant Mixtures For Vegetation Management Along Indiana Roadsides, D. James Morré
Cost Reduction And Increased Efficacy Of Growth Retardant Mixtures For Vegetation Management Along Indiana Roadsides, D. James Morré
JTRP Technical Reports
No abstract provided.
Optimization Of Richardson's Shale Durability Rating System, John Dell Long
Optimization Of Richardson's Shale Durability Rating System, John Dell Long
Masters Theses
"The two-cycle sieved slake durability test, performed on specimens initially oven-dried prior to testing, was determined to be the optimum slake durability testing procedure based on 12 variations of the test performed on 12 different shale types. The effects of changing slake durability testing variables was also studied.
Standard Proctor moisture-density and compaction-degradation tests were performed on 11 shales.
A modified version of the ultrasonic cavitation disaggregation test was developed and performed on 14 shales.
Richardson's shale durability rating equation was modified to include or reflect a data base of 14 shales, the results of the 20-min. ultrasonic cavitation disaggregation …
Computational Package For Predicting Pile Stresses And Capacity : Executive Summary, Ahmad Amr Darrag
Computational Package For Predicting Pile Stresses And Capacity : Executive Summary, Ahmad Amr Darrag
JTRP Technical Reports
No abstract provided.
Evaluation Of The Coordination Of Weigh-In-Motion Truck Data In Indiana (Fy86 Rtap Wim Project) : Interim Report, John Daniel Riverson, Kumares C. Sinha
Evaluation Of The Coordination Of Weigh-In-Motion Truck Data In Indiana (Fy86 Rtap Wim Project) : Interim Report, John Daniel Riverson, Kumares C. Sinha
JTRP Technical Reports
No abstract provided.
Pile Capacity Predictions Using Static And Dynamic Load Testing, Ahmad Amr Darrag
Pile Capacity Predictions Using Static And Dynamic Load Testing, Ahmad Amr Darrag
JTRP Technical Reports
No abstract provided.
An Evaluation Of Disadvantaged Business Enterprise Requirements For Indiana Department Of Highway Construction Projects : Executive Summary, Patrick A. Killian, Donn Edward Hancher
An Evaluation Of Disadvantaged Business Enterprise Requirements For Indiana Department Of Highway Construction Projects : Executive Summary, Patrick A. Killian, Donn Edward Hancher
JTRP Technical Reports
No abstract provided.
Implementation Program To Improve Embankment Design And Performance With Indiana Soils, A. G. Altschaeffl, Sabanayagam Thevanayagam, G. Girish) Agrawal
Implementation Program To Improve Embankment Design And Performance With Indiana Soils, A. G. Altschaeffl, Sabanayagam Thevanayagam, G. Girish) Agrawal
JTRP Technical Reports
No abstract provided.
Development Of An Overlay Design Procedure For Flexible Pavements In Indiana : Executive Summary, Jay K. Lindly, Thomas D. White
Development Of An Overlay Design Procedure For Flexible Pavements In Indiana : Executive Summary, Jay K. Lindly, Thomas D. White
JTRP Technical Reports
No abstract provided.
Effects Of Asphalt Composition And Compaction On The Performance Of Asphalt Pavement Mixtures, Leonard E. Wood, A. G. Altschaeffl
Effects Of Asphalt Composition And Compaction On The Performance Of Asphalt Pavement Mixtures, Leonard E. Wood, A. G. Altschaeffl
JTRP Technical Reports
No abstract provided.
Material Characterization Of Hot-Mix Recycled Bituminous Pavements, Leonard E. Wood, Ahmed Samy Noureldin
Material Characterization Of Hot-Mix Recycled Bituminous Pavements, Leonard E. Wood, Ahmed Samy Noureldin
JTRP Technical Reports
No abstract provided.
Development Of An Overlay Design Procedure For Flexible Pavements In Indiana, Jay K. Lindly, Thomas D. White
Development Of An Overlay Design Procedure For Flexible Pavements In Indiana, Jay K. Lindly, Thomas D. White
JTRP Technical Reports
No abstract provided.
Cost Reduction And Increased Efficacy Of Growth Retardant Mixtures For Vegetation Management Along Indiana Roadsides : Executive Summary, D. James Morré
Cost Reduction And Increased Efficacy Of Growth Retardant Mixtures For Vegetation Management Along Indiana Roadsides : Executive Summary, D. James Morré
JTRP Technical Reports
No abstract provided.
Placement Rates For Highway Embankments With Vertical And Horizontal Drainage : Informational Report, A. G. Altschaeffl, Sabanayagam Thevanayagam
Placement Rates For Highway Embankments With Vertical And Horizontal Drainage : Informational Report, A. G. Altschaeffl, Sabanayagam Thevanayagam
JTRP Technical Reports
No abstract provided.
A 24-Hour Rainfall Distribution And Peak Rate Factors For Use In Southwest Florida, Geoffrey S. Dendy
A 24-Hour Rainfall Distribution And Peak Rate Factors For Use In Southwest Florida, Geoffrey S. Dendy
Retrospective Theses and Dissertations
The objectives of this research were to derive a design 24-hour duration rainfall distribution for use in southwest Florida, and peak rate factors for use in the Soil Conservation Service (SCS) unit hydrograph method for two watersheds, also in the southwest Florida area. The rainfall distribution is derived by applying a least squares polynomial curve fitting technique to National Weather Service hourly rainfall data collected in the study area. The screening criteria for data included in the curve fitting procedure are: storm duration of 18 to 26 hours, at least three inches of rainfall volume, and peak intensity period falling …
Development Of Design Criteria For Ferritic Stainless Steel Cold-Formed Structural Members And Connections, Pieter Van Der Merwe
Development Of Design Criteria For Ferritic Stainless Steel Cold-Formed Structural Members And Connections, Pieter Van Der Merwe
Doctoral Dissertations
"This dissertation describes the development of the basic criteria needed for the design of structural members cold-formed from certain ferritic stainless steels. The Allowable Stress Design method as well as the Load and Resistance Factor Design method receive attention. The ferritic stainless steels under consideration are: Types AISI 409 and 430 as well as a modified Type 409 steel, designated 3CR12 steel, developed and produced by the speciality steel producing company, Middelburg Steel and Alloys in South Africa.
The mechanical properties needed for structural design are established. It is shown through an experimental study that the design provisions for the …
Structural Behavior Of Members Consisting Of Flat And Curved Elements, M. Brad Parks
Structural Behavior Of Members Consisting Of Flat And Curved Elements, M. Brad Parks
Doctoral Dissertations
"Local buckling of stiffened and unstiffened curved elements has been investigated both experimentally and analytically. Stiffened curved elements are supported on all four edges while unstiffened curved elements are supported along three edges with one longitudinal edge free.
A series of stub column, beam, and shear tests have been performed for sections containing curved elements. The tested specimens were formed from sheet steels with yield strengths ranging from 27 to 88 ksi. The radius-to-thickness, R/t, values of the curved elements varied from 12 to 438 whereas the arc length-to-thickness, bit, ratios ranged from 23 to 218.
As a result of …
Elastic-Plastic Analysis Of Axisymmetrically Loaded Isotropic Circular And Annular Plates Undergoing Large Deflections, Aiman Raji Akileh
Elastic-Plastic Analysis Of Axisymmetrically Loaded Isotropic Circular And Annular Plates Undergoing Large Deflections, Aiman Raji Akileh
Dissertations and Theses
The concept of load analogy is used in the elastic and elastic-plastic analysis of isotropic circular and annular plates undergoing moderately large deflection. The effects of the nonlinear terms of lateral displacement and the plastic strains are considered as additional fictitious lateral loads, edge moments, and in-plane forces acting on the plate. The solution of an elastic or elastic-plastic Von Karman type plate is hence reduced to a set of two equivalent elastic plate problems with small displacements, namely, a plane problem in elasticity and a linear elastic plate bending problem. The method of finite element is employed to solve …
Experimental Study Of Rectangular Reinforced Concrete Members Under Combined Biaxial Bending And Tension, Naresh B. Patel
Experimental Study Of Rectangular Reinforced Concrete Members Under Combined Biaxial Bending And Tension, Naresh B. Patel
Theses
In practice it is a very common case to have a column subjected to combined effects of axial tension and biaxial bending moments and very few efforts are done to get good design approach for such special members.
So for this purpose, experiments were carried out on rectangular shapecolumns. Rectangular shaped columns were casted in homogeneous with brackets - one on each end and at connections haunches were provided to avoid the possible end failure. The overall shape of this configuration was "H" shape. Two hydraulic jacks were used; one on either side of the columns and thus column section …
Tests On Square Reinforced Concrete Members Under Combined Biaxial Bending And Tension, Bhadresh Shah
Tests On Square Reinforced Concrete Members Under Combined Biaxial Bending And Tension, Bhadresh Shah
Theses
The research reported herein studies the ultimate strength behavior for square-shaped reinforced concrete short columns under combined biaxial bending and tension that is a common design problem. The present ACI building code (ACI 318-83) (1) and design hand book (2) do not offer an insight into the determination of strength and ductility behavior of biaxially loaded reinforced concrete columns. A design equation developed by Hsu (3,4,5 ) to study the ultimate strength behavior and failure surfaces for members under these combined action was used and the computed results were compared with the present analytical results and experimental results for square-shaped …