Download or read book Implosion of Steel Fibre Reinforced Concrete Cylinders Under Hydrostatic Pressure written by and published by . This book was released on 1999 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Implosion of Steel Fibre Reinforced Concrete Cylinders Under Hydrostatic Pressure written by Joel Aaron Smith and published by . This book was released on 1999 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis describes an experimental tea program and subsequent analysis devoted to the study of steel fibre reinforced concrete cylinders which implode under hydrostatic water pressure. The cylinders model components of gravity base structures beneath oil and gas platforms in the North Sea. Five cylinders were tested in the Hydraulic Test Facility at the University of Toronto. They had an outer diameter of 610mm, and a thickness of 19mm. The Length-to-outer-diameter ratio varied from 1.0 to 2.5. The total volume of fibre reinforcement was either 1% or 6% of the concrete volume. The cylinders are analyzed using a method developed by Haynes and Nordby, using Olsen's Method which is a popular design method, and finally using RASP ®, a reinforced concrete shell finite element program developed at the University of Toronto. The results of the analyses are compared to experimental results.

Download or read book Design for Implosion of Concrete Cylinder Structures Under Hydrostatic Loading written by Harvey H. Haynes and published by . This book was released on 1979 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report presents updated design guides for both thick- and thin- walled concrete cylinder structures under hydrostatic loading. The design approach for thick-walled cylinders has been changed from that described in previous work to a semi-empirical basis; improvements in implosion strength on the order of 10% are found. A test on a thick-walled 10-ft-diam (3.05-m) structure loaded to failure in the ocean is reported. A major change in the guide is for thin-walled cylinders, where new data on 15 relatively large-scale specimens are reported. Design guides for thin-walled cylinders show an increase in implosion strength ranging from 0% to 35%, depending on the structures' tDo and L/Do ratios, from that reported previously.

Download or read book Behavior of Steel Bar Reinforced Concrete Spheres Under Hydrostatic Loading written by N. D. Albertsen and published by . This book was released on 1975 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt: Four reinforced and two unreinforced concrete spheres of 32.00-inch outside diameter (OD) and 2.71-inch wall thickness (t) were tested under hydrostatic loading to determine the effect of embedded steel reinforcement on structural behavior. Test results show that the reinforced spheres (0.44 or 1.10% steel by area) failed by implosion at values for the ratio of implosion pressure to concrete strength that were on the average 5% lower than for the unreinforced spheres of the same size. In addition, the reinforced spheres developed cracks in-the-plane-of-the-wall at the inner surface of the reinforcement cage prior to implosion. Implosion results for the unreinforced spheres are 10% lower than predicted by an empirical equation developed from previous tests of unreinforced 16-inch OD spheres. These results provide initial insight into the behavior of hydrostatically loaded steel bar reinforced concrete spheres and indicate that additional test data is required before definitive design guides can be developed.

Download or read book Handbook for Design of Undersea Pressure resistant Concrete Structures written by H. H. Haynes and published by . This book was released on 1976 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Failure of Thick walled Concrete Spheres Subjected to Hydrostatic Loading written by H. H. Haynes and published by . This book was released on 1970 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt: Two modes of failure for hollow concrete spheres subjected to hydrostatic pressure loadings are discussed, and the experimental results are presented. The first mode of failure was crack development in the plane of the concrete wall, and the second mode was implosion. From experiments using 16-inch-OD spheres, the difference between the pressures at failure for the two modes ranged from 0 to 50%. Expressions to predict the pressures at initiation of in-plane cracking of the concrete wall and the pressures at implosion are presented. (Author).

Download or read book Sounds from Implosions of Steel Cylinders Under Water written by Robert S. Price and published by . This book was released on 1974 with total page 29 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pressure pulses from steel cylindrical tanks imploding under hydrostatic pressure in the ocean are described. Several tanks were recovered after collapse for inspection so that the mode of collapse and resulting damage to the tanks could be correlated with the acoustic measurements. The imploding steel tanks generated acoustic signatures that differed significantly from those produced by underwater explosions and from those produced by underwater implosions of glass bottles. The observed negative onset of the implosion signatures from the steel tanks was apparently caused by the formation of an inward buckle.

Download or read book Experimental and Numerical Study of Steel Fiber Reinforced Concrete Structures Subjected to Internal Explosion written by Nikhil Vasant Moon and published by . This book was released on 2020 with total page 123 pages. Available in PDF, EPUB and Kindle. Book excerpt: This research investigates the effect of an accidental explosion of a steam boiler in a boiler room on steel fiber reinforced concrete (SFRC) structure in an industrial facility, using nonlinear analysis in ABAQUS FEA software. The mechanical properties of SFRC are calculated through testing at the UTA Civil Engineering Laboratory Building. Steel fiber dosages in concrete at different volume fractions are examined for the mechanical properties of concrete. In total, 9 (4" x 8") cylindrical specimens for compressive strength and modulus of elasticity test, 9 (4" x 8") cylindrical specimens for tensile strength test, and 9 (6" x 6" x 21") beam specimens for modulus of rupture test were produced and tested after 28 days of curing. Modulus of Elasticity is found for the different volume fractions of SRFC by stress vs strain curve from experimental tests. Adding 1% of steel fiber in concrete can increase the modulus of elasticity by 11%, compressive strength by 22%, tensile strength by 42%, and modulus of rupture by 32 %. Using the concrete properties obtained from experimental results, numerical analysis is done to find the effect of the Steam Boiler explosion on SFRC boiler room using nonlinear analysis in ABAQUS FEA software. Dynamic/Explicit loading condition is considered for analysis. It's found that adding 1% steel fiber by volume fraction can increase the overall capacity of concrete structure by 26%, decrease strain by 21%, and decrease the deflection by 23%. Parametric studies are also carried out at 1% SFRC by different arrangements of Steam Boiler closed room - with a rigid roof, with a frangible roof and circular vent in the roof. It's found that the reflected pressure due to explosion can be significantly reduced on the surrounding walls. In case, roof with circular vent the stresses decrease by 50%, strain decrease by 70% and with frangible roof stress decrease by 31%, strain by 38% and strain decrease by 38%.

Download or read book Steel Fibre Reinforced Concrete written by P. Schumacher and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book ACI Structural Journal written by and published by . This book was released on 1989 with total page 822 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Mechanical Properties and Working of Metals and Alloys written by Amit Bhaduri and published by Springer. This book was released on 2018-05-12 with total page 758 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is intended to serve as core text or handy reference on two key areas of metallic materials: (i) mechanical behavior and properties evaluated by mechanical testing; and (ii) different types of metal working or forming operations to produce useful shapes. The book consists of 16 chapters which are divided into two parts. The first part contains nine chapters which describe tension (including elastic stress – strain relation, relevant theory of plasticity, and strengthening methods), compression, hardness, bending, torsion – pure shear, impact loading, creep and stress rupture, fatigue, and fracture. The second part is composed of seven chapters and covers fundamentals of mechanical working, forging, rolling, extrusion, drawing of flat strip, round bar, and tube, deep drawing, and high-energy rate forming. The book comprises an exhaustive description of mechanical properties evaluated by testing of metals and metal working in sufficient depth and with reasonably wide coverage. The book is written in an easy-to-understand manner and includes many solved problems. More than 150 numerical problems and many multiple choice questions as exercise along with their answers have also been provided. The mathematical analyses are well elaborated without skipping any intermediate steps. Slab method of analysis or free-body equilibrium approach is used for the analytical treatment of mechanical working processes. For hot working processes, different frictional conditions (sliding, sticking and mixed sticking–sliding) have been considered to estimate the deformation loads. In addition to the slab method of analysis, this book also contains slip-line field theory, its application to the static system, and the steady state motion, Further, this book includes upper-bound theorem, and upper-bound solutions for indentation, compression, extrusion and strip drawing. The book can be used to teach graduate and undergraduate courses offered to students of mechanical, aerospace, production, manufacturing and metallurgical engineering disciplines. The book can also be used for metallurgists and practicing engineers in industry and development courses in the metallurgy and metallic manufacturing industries.

Download or read book Dynamic Behavior of Materials Volume 1 written by Tom Proulx and published by Springer Science & Business Media. This book was released on 2011-05-27 with total page 455 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dynamic Behavior of Materials represents one of eight volumes of technical papers presented at the Society for Experimental Mechanics Annual Conference on Experimental and Applied Mechanics, held at Uncasville, Connecticut, June 13-16, 2011. The full set of proceedings also includes volumes on Mechanics of Biological Systems and Materials, Mechanics of Time-Dependent Materials and Processes in Conventional and Multifunctional Materials, MEMS and Nanotechnology; Optical Measurements, Modeling and, Metrology; Experimental and Applied Mechanics, Thermomechanics and Infra-Red Imaging, and Engineering Applications of Residual Stress.

Download or read book Journal of the American Concrete Institute written by American Concrete Institute and published by . This book was released on 1978 with total page 764 pages. Available in PDF, EPUB and Kindle. Book excerpt: Includes the ACT news letter (title varies slightly).

Download or read book Technical Abstract Bulletin written by and published by . This book was released on 1965 with total page 914 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Hydrodemolition of Concrete Surfaces and Reinforced Concrete written by Andreas Momber and published by Elsevier. This book was released on 2011-04-18 with total page 285 pages. Available in PDF, EPUB and Kindle. Book excerpt: Industrial manufacturers are increasingly using very high pressure water jets for the cleaning and breaking up of materials. Until recently, the demolition of reinforced concrete has been a long and difficult process, but developments in the design and use of high pressure water jets have made this a cleaner and faster process with many other applications in civil, construction and environmental engineering. Andreas Momber, a well known expert in water jet and abrasive water jet cutting technology has produced a unique and comprehensive book dealing with the fundamentals of the hydrodemolition process. Coverage includes equipment, processes, surface quality aspects, demolition with abrasive water jets, pulsed liquid jets, alternative applications and safety aspects. This book will help you to...•Understand the hydrodemolition process and its rewards, enabling you to achieve a cleaner, faster process in the demolition of concrete surfaces and reinforced concrete. •Learn when and where hydrodemolition can be used •Understand the costs, advantages and safety aspects involved•Apply the technique to new applications in your industry such as cleaning and waste management•Purchase the appropriate equipment, cutting time and maintenance costs * Written by a well known expert in the field of water jet and abrasive water jet cutting technology* First comprehensive book in the growing area of hydrodemolition of concrete surfaces and reinforced concrete * Coverage includes the theory and practice of the hydrodemolition process

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 704 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Concrete International written by and published by . This book was released on 1979 with total page 668 pages. Available in PDF, EPUB and Kindle. Book excerpt: