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Author : Rick David Puglisi
Publisher :
ISBN 13 :
Total Pages : 482 pages
Book Rating : 4.:/5 (29 download)
Download or read book Dynamic Response Analysis of Shallow-buried Reinforced Concrete Arches written by Rick David Puglisi and published by . This book was released on 1987 with total page 482 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Caryll Robbins Whipple
Publisher :
ISBN 13 :
Total Pages : 486 pages
Book Rating : 4.:/5 (31 download)
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).
Author : N. Palacios
Publisher :
ISBN 13 :
Total Pages : 170 pages
Book Rating : 4.3/5 (91 download)
Download or read book The Dynamic Response of Buried Concrete Arches written by N. Palacios and published by . This book was released on 1967 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Mary E. Auld
Publisher :
ISBN 13 :
Total Pages : 5 pages
Book Rating : 4.:/5 (228 download)
Download or read book Analysis of Buried Reinforced Concrete Arch Structures Under Dynamic Loads written by Mary E. Auld and published by . This book was released on 1983 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: A damped single degree-of-freedom model was developed to represent the gross dynamic behavior of shallow buried reinforced concrete arches subjected to specified nonuniform pressure distributions. Structural parameter were developed for a generic structure based upon available information in the literature and first principal calculations. Values of maximum crown deflection, calculated from numerical integration of the differential equation of motion, were compared with similar results from field experiments. Results utilizing structural parameters selected on this basis of the recommendations in this study provide the best agreement. (Author).
Author : N. Palacios
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (227 download)
Download or read book The Dynamic Response of Buried Concrete Arches written by N. Palacios and published by . This book was released on 1967 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of Project 3.2 was to evaluate the effect of a 500-ton, TNT, surface burst on small, buried, reinforced concrete arch structures. These structures were of such size that they could be tested in laboratory nuclear simulation devices. Nine structures were tested. Three 30-inch-diameter structures with a 4-inch-thick section buried in dry sand to a depth equal to one-fourth the diameter of the arch were located at the 100-, 200-, and 300-psi predicted ground-surface air overpressure levels. Based upon conventional design theory these structures which had tied-independent footings were predicted to fail at overpressures above 200 psi and to move vertically 1 inch. Six semicircular, 12-inch-diameter, unreinforced concrete arch structures with solid base slabs were designed for and placed at the 150-psi predicted ground-surface air overpressure level. Three structures were placed in dry dense sand and three in saturated sand. The three 30-inch structures were subjected to actual air overpressures of 105, 160, and 320 psi and were damaged only slightly. The structure at the greatest range appeared to have suffered greater flexural damage than the closer-in structures. The 12-inch structures were damaged appreciably by ejecta. Generally, the structures responded in a similar manner. In all cases the blast side moved vertically downward, causing an overturning effect. It was concluded that the design techniques used are apparently conservative. (Author).
Author : Wade H. Shafer
Publisher : Springer Science & Business Media
ISBN 13 : 1461305993
Total Pages : 411 pages
Book Rating : 4.4/5 (613 download)
Download or read book Masters Theses in the Pure and Applied Sciences written by Wade H. Shafer and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 411 pages. Available in PDF, EPUB and Kindle. Book excerpt: Masters Theses in the Pure and Applied Sciences was first conceived, published, and disseminated by the Center for Information and Numerical Data Analysis and Synthesis (CINDAS) * at Purdue University in 1 957, starting its coverage of theses with the academic year 1955. Beginning with Volume 13, the printing and dissemination phases of the activity were transferred to University Microfilms/Xerox of Ann Arbor, Michigan, with the thought that such an arrangement would be more beneficial to the academic and general scientific and technical community. After five years of this joint undertaking we had concluded that it was in the interest of all con cerned if the printing and distribution of the volumes were handled by an interna tional publishing house to assure improved service and broader dissemination. Hence, starting with Volume 18, Masters Theses in the Pure and Applied Sciences has been disseminated on a worldwide basis by Plenum Publishing Cor poration of New York, and in the same year the coverage was broadened to include Canadian universities. All back issues can also be ordered from Plenum. We have reported in Volume 32 (thesis year 1987) a total of 12,483 theses titles from 22 Canadian and 176 United States universities. We are sure that this broader base for these titles reported will greatly enhance the value of this important annual reference work. While Volume 32 reports theses submitted in 1987, on occasion, certain univer sities do report theses submitted in previous years but not reported at the time.
Author : Caryll R. Whipple
Publisher :
ISBN 13 :
Total Pages : 1 pages
Book Rating : 4.:/5 (227 download)
Download or read book Numerical Studies of the Dynamic Response of Shallow-buried Arches Subjected to Blast Loading written by Caryll R. Whipple and published by . This book was released on 1961 with total page 1 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Thomas Edward Kennedy
Publisher :
ISBN 13 :
Total Pages : 68 pages
Book Rating : 4.3/5 (91 download)
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).
Author : Charles Ray Nelson
Publisher :
ISBN 13 :
Total Pages : 108 pages
Book Rating : 4.:/5 (135 download)
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:
Author : William J. Flathau
Publisher :
ISBN 13 :
Total Pages : 42 pages
Book Rating : 4.:/5 (359 download)
Download or read book Static and Dynamic Tests of Buried Unreinforced Concrete Arches written by William J. Flathau and published by . This book was released on 1966 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt: The primary objective of the study was to determine the response, to collapse, of buried semicircular, unreinforced concrete fixed-end arches of varying stiffnesses when subjected to both static and dynamic loads.
Author : Charles Ray Nelson
Publisher :
ISBN 13 :
Total Pages : 108 pages
Book Rating : 4.:/5 (242 download)
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 : Indravadan Keshavlal Shah
Publisher :
ISBN 13 :
Total Pages : 95 pages
Book Rating : 4.:/5 (135 download)
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:
Author :
Publisher :
ISBN 13 :
Total Pages : 632 pages
Book Rating : 4.:/5 (31 download)
Download or read book The Shock and Vibration Bulletin written by and published by . This book was released on 1982 with total page 632 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : American Society of Civil Engineers. Engineering Mechanics Division. Specialty Conference
Publisher :
ISBN 13 :
Total Pages : 350 pages
Book Rating : 4.:/5 (318 download)
Download or read book Engineering Mechanics--7th Conference written by American Society of Civil Engineers. Engineering Mechanics Division. Specialty Conference and published by . This book was released on 1988 with total page 350 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Waterways Experiment Station (U.S.)
Publisher :
ISBN 13 :
Total Pages : 142 pages
Book Rating : 4.3/5 (91 download)
Download or read book Design and Analysis of Underground Reinforced-concrete Arches written by Waterways Experiment Station (U.S.) and published by . This book was released on 1962 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Frank D. Dallriva
Publisher :
ISBN 13 :
Total Pages : 242 pages
Book Rating : 4.3/5 (91 download)
Download or read book Static Tests of Shallow-buried Reinforced Concrete Arches written by Frank D. Dallriva and published by . This book was released on 1988 with total page 242 pages. Available in PDF, EPUB and Kindle. Book excerpt: The determination of the loads on and behavior of shallow-buried arch structures is complicated by the geometry of the arch and by existence if soil structures arches interaction effects. A common approach to the analysis of buried is to idealize the structure as a lumped parameter single degree of freedom (SDOF) system. The parameters which must be assumed for input into the SDOF model include a loading function and a structural resistance deflection relationship. The applied load on a buried arch due to overpressure at the ground surface includes a radial and a tangential component. The radial component can be measured experimentally; however, there seems to be no available transducers to measure the tangential component or interface friction. Two 1/12-scale model reinforced concrete arches were tested statically in a sand backfill. The arches were semicircular with an inside radius of 1 foot 9 inches and a thickness of 2 inches. One arch was covered with two layers of 1/32-inch-thick Teflon at the soil-structure interface to significantly reduce the interface friction, and the loading and behavior of the two arches were compared. Pretest finite element calculations were conducted to estimate the arch behavior. Based on both the experimental data and posttest calculations, it appears that interface friction on a shallow buried arch has an effect on its behavior, at least for the case of static loads. The load path at sections in the arch with a lower friction coefficient at the interface tended more toward pure compression than it did in the other arch. Keywords: Air blast simulation; Concrete structures; Hardened installation. (SDW).
Author :
Publisher :
ISBN 13 :
Total Pages : 1020 pages
Book Rating : 4.:/5 (31 download)
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1988 with total page 1020 pages. Available in PDF, EPUB and Kindle. Book excerpt:
