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Calculation Of Static And Dynamic Response Of Circular Arches
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Book Synopsis Calculation of static and dynamic response of circular arches by : Richard T. Eppink
Download or read book Calculation of static and dynamic response of circular arches written by Richard T. Eppink and published by . This book was released on 1964 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt: The report presents theoretical calculations of the behavior of two-hinged circular arches deflecting in their own plane and subjected to static and dynamic loads distributed uniformly over a portion of the arches. The solutions are obtained by reducing the structural description of the continuous arch to an approximate system having a finite number of degrees of freedom. The numerical results predict the behavior in and beyond the elastic range of the circular arches. The parameters describing the geometry, stiffness, and other physical characteristics of the arch were selected to represent the actual arches tested in the blast simulator at the U.S. Naval Civil Engineering Laboratory. The arches tested were fabricated from 4MI3.0 section with two strips welded to the top flanges. The radii of arches were 96.0 inches to the center lines of thin cross-sections and the central angles were about 97 degrees.
Book Synopsis The Dynamic Response of Reinforced Concrete Circular Arches by : Charles Ray Nelson
Download or read book The Dynamic Response of Reinforced Concrete Circular Arches written by Charles Ray Nelson and published by . This book was released on 1964 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Static and Dynamic Behavior of Antisymmetrically Loaded Arches by : R. H. Chiu
Download or read book Static and Dynamic Behavior of Antisymmetrically Loaded Arches written by R. H. Chiu and published by . This book was released on 1966 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt: Four pinned-base steel arches with a 96-inch radius, 143.8-inch span, and uniform cross section were cold-rolled from 4M13 sections and tested under various static and dynamic loads uniformly distributed over one-half the arc length. A maximum static load of 72,000 pounds was applied by the NCEL blast simulator using compressed air. A dynamic peak load of 64,000 pounds was attained by detonating Primacord in the blast simulator. The blast loading had a rise time of about 3 milliseconds and a decay time of about 1.6 seconds. An equivalent triangular load-time function was used for the dynamic analysis. The applied loads and the resulting deflections, strains, and reactions were measured. The reduced data are presented in graphical and tabular form. The theoretical analyses for statically and dynamically loaded arches were based on the discrete framework which represented the continuous arches tested. A 16-bar system was used for both static and dynamic response calculations, and a 40-bar system was used for natural mode and frequency calculations. In the static analysis, the effects of stress amplification, misalignment, and elastic supports on the response of the arch were considered. Due to the strain- hardening characteristics of the arch material, the idealized stress-strain curve was represented by a trilinear curve rather than by the usual bilinear stress-strain curve. A simplified dynamic analysis gave results reasonably close to those from more rigorous methods; the values were on the conservative side. Nearly complete correlation between the theoretical and experimental results was obtained.
Book Synopsis Guide to Technical Documents by : Naval Civil Engineering Laboratory (Port Hueneme, Calif.)
Download or read book Guide to Technical Documents written by Naval Civil Engineering Laboratory (Port Hueneme, Calif.) and published by . This book was released on 1974 with total page 374 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Nonlinear Response of Two-hinged Circular Reinforced Concrete Arches to Static and Dynamic Loads by : Vijay N. Gupchup
Download or read book Nonlinear Response of Two-hinged Circular Reinforced Concrete Arches to Static and Dynamic Loads written by Vijay N. Gupchup and published by . This book was released on 1963 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Nonlinear Dynamic Response of Reinforced Concrete Circular Arches by : Indravadan Keshavlal Shah
Download or read book Nonlinear Dynamic Response of Reinforced Concrete Circular Arches written by Indravadan Keshavlal Shah and published by . This book was released on 1964 with total page 95 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Technical Abstract Bulletin written by and published by . This book was released on with total page 776 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Static and Dynamic Behavior of Reinforced Concrete Circular Arches by : Vijay N. Gupchup
Download or read book Static and Dynamic Behavior of Reinforced Concrete Circular Arches written by Vijay N. Gupchup and published by . This book was released on 1963 with total page 237 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Response of Arches Under Dynamic Loads by : R. T. Eppink
Download or read book Response of Arches Under Dynamic Loads written by R. T. Eppink and published by . This book was released on 1960 with total page 318 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report is concerned with a study of the response of arches subjected to the influence of transient forces. A numerical procedure is presented for the computation of the dynamic response of arches for both the elastic and inelastic ranges of deformation. The procedure is applicable to arches having any shape and any distribution of mass and stiffness. The distribution of the pressure along the arch and its timewise variation may be arbitrary. The analysis is simplified by replacing the actual arch which has an infinite number of degrees of freedom by a discrete framework consisting of a series of rigid bars, flexible joints and concentrated point masses. For the computation of the response in the inelastic range, the cross-sectional area of the arch is considered to consist of two concentrated flange areas connected by a thin rigid web.
Book Synopsis The Dynamic Response of a Simulated Buried Arch to Blast Loading by : Thomas Edward Kennedy
Download or read book The Dynamic Response of a Simulated Buried Arch to Blast Loading written by Thomas Edward Kennedy and published by . This book was released on 1971 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: A method of analysis for buried arches with footings was developed to predict their response to a nuclear airblast overpressure. The method of analysis was formulated by considering the arch ring as a discrete model consisting of a finite number of nodes (flexible joints) connected by rigid bars initially of equal length. The results of laboratory and field tests on 1/4.5- and 1/2-scale models, respectively, of an arch structure are compared with predictions made using the analysis. Arch internal loads, footing motions, and free-field motions are compared with those predicted by the analysis and compare favorably. The analytical technique was used to predict the response of the prototype structure to a 140-psi air overpressure loading resulting from the detonation of 10-kt, 100-kt, and 1-Mt weapons, to a 100-psi air overpressure for a 1-Mt weapon, and to the Operation Prairie Flat (500-ton TNT) 140-psi overpressure and the predicted response was compared with that assumed in designing the structure. The method of analysis developed is recommended whenever a significant cost savings can be realized because a number of structures are to be constructed or when local soil conditions make design by cruder methods uncertain. (Author).
Book Synopsis STATIC AND DYNAMIC BEHAVIOR OF REINFORCED CONCRETE CIRCULAR ARCHES. PART 1 by :
Download or read book STATIC AND DYNAMIC BEHAVIOR OF REINFORCED CONCRETE CIRCULAR ARCHES. PART 1 written by and published by . This book was released on 1963 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt: The experimental and analytical studies indicate that the approximate conventional theory based on limit analysis is quite adequate to predict the static ultimate loads of the underreinforced arches. The dynamic ultimate loads for compression mode loading can also be predicated by approximate theory provided that an appropriate dynamic increase factor (based on the increase in material properties) is used. However, it is not clear whether a satisfactory approximate theory can be developed to predict the ultimate dynamic load carrying capacity of the arch, subjected to a concentrated dynamic load at the crown or anti symmetric concentrated dynamic loads at quarter points. The experimental and analytical investigations also indicate that the natural periods of the arches have a significant influence on the dynamic load-carrying capacity of the arches in the cases of a concentrated load at the crown and antisymmetric concentrated loads at quarter points. The mode of failure under both static and dynamic loads is quite ductile in these cases as compared to the compression mode loading.
Book Synopsis The Experimental Dynamic Response of Reinforced Concrete Circular Arches by : Charles Ray Nelson
Download or read book The Experimental Dynamic Response of Reinforced Concrete Circular Arches written by Charles Ray Nelson and published by . This book was released on 1965 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :Massachusetts Institute of Technology. School of engineering. Department of civil engineering Publisher : ISBN 13 : Total Pages : pages Book Rating :4.:/5 (421 download)
Book Synopsis Static and Dynamic Behavior of Reinforced Concrete Circular Arches by : Massachusetts Institute of Technology. School of engineering. Department of civil engineering
Download or read book Static and Dynamic Behavior of Reinforced Concrete Circular Arches written by Massachusetts Institute of Technology. School of engineering. Department of civil engineering and published by . This book was released on 1963 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Theory of Arched Structures by : Igor A Karnovsky
Download or read book Theory of Arched Structures written by Igor A Karnovsky and published by Springer Science & Business Media. This book was released on 2011-12-29 with total page 449 pages. Available in PDF, EPUB and Kindle. Book excerpt: Theory of Arched Structures: Strength, Stability, Vibration presents detailed procedures for analytical analysis of the strength, stability, and vibration of arched structures of different types, using exact analytical methods of classical structural analysis. The material discussed is divided into four parts. Part I covers stress and strain with a particular emphasis on analysis; Part II discusses stability and gives an in-depth analysis of elastic stability of arches and the role that matrix methods play in the stability of the arches; Part III presents a comprehensive tutorial on dynamics and free vibration of arches, and forced vibration of arches; and Part IV offers a section on special topics which contains a unique discussion of plastic analysis of arches and the optimal design of arches..
Book Synopsis The Dynamic Response of Shallow-buried Arches Subjected to Blast Loading by : Caryll Robbins Whipple
Download or read book The Dynamic Response of Shallow-buried Arches Subjected to Blast Loading written by Caryll Robbins Whipple and published by . This book was released on 1961 with total page 486 pages. Available in PDF, EPUB and Kindle. Book excerpt: A study was made of the effectiveness of the surrounding soil in restraining the lateral movement of shallow-buried arches subjected to blast overpres ures from a nuclear explosion. The theory is developed for parabolic arches with circular or barrel arches included as a special case. It can be pplied equally well to arches oriented with their longitudinal axes perpendicular to or parallel to the direction of travel of the blast wave. The arch is considered to be buried near the surface of a semi-infinite soil mass. The depth of cover over the crown is limited to one-half of the arch span. The twohinged rather than the fixed arch is selected as representing more closely the shallow-buried rch structures used in full-scale nuclear tests to date. While these structures were not actually pinned at the arch abutments, their behavior under blast loading appears to resemble more closely the pinned th n the fixed case. he principal variables studied in the numerical examples include: (1) depth of cover, (2) overpressure loading, (3) arch material, and (4) arch span. (Author).
Book Synopsis The Influence of Blast and Earth Pressure Loadings on the Dynamic Response of Flexible Underground Two-hinged Arches by : Worthen Allen Walls
Download or read book The Influence of Blast and Earth Pressure Loadings on the Dynamic Response of Flexible Underground Two-hinged Arches written by Worthen Allen Walls and published by . This book was released on 1960 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1987 with total page 1126 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
