Download or read book Experimental Investigation of Shear Transfer Between Concrete Interfaces written by Joshua Brice Massey and published by . This book was released on 2014 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt: This experimental program was focused on the effect of surface geometry (shear keys) on the transmission of shear forces between concrete cast against a hardened concrete interface. This research was part of a larger study at The University of Texas at Austin focused on several aspects of spliced precast concrete girder technology, particularly those concerning the interface between precast girders and cast-in-place splices. 14 push-through type specimens were tested with varying surface geometries, interface reinforcement ratios, and levels of prestress normal to the interface. The surface types considered included smooth, single shear keys, multiple shear keys, saw teeth of multiple depths and a monolithic specimen for comparison. The principle findings were that surfaces with properly detailed indentations could transfer significantly higher shear forces before slip occurred than smooth surfaces, and that shear keys generally displaced better performance than saw-teeth. Forces from prestress and yielding of reinforcement crossing the interface during failure were found to contribute to the strength in effectively the same manner. In addition, the shear friction based provisions of ACI 318-11, AASTHO LRFD 2012, and Eurocode 2 were found to provide satisfactory predictions of the ultimate strength of such surfaces with reinforcement ratios less than 0.75 %.
Download or read book An Experimental Investigation of Interface Shear Transfer and Applications in the Dynamic Analysis of Nuclear Containment Vessels written by Jeffrey Paul Laible and published by . This book was released on 1973 with total page 714 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book An Experimental Investigation of Shear Transfer Across Cracks in Reinforced Concrete written by Allen Francis Eleiott and published by . This book was released on 1974 with total page 254 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings fib Symposium in Stuttgart written by FIB – International Federation for Structural Concrete and published by FIB - Féd. Int. du Béton. This book was released on 2008-09-01 with total page 1168 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Shear Stress Transfer Across Concrete to Concrete and Steel to Concrete Interfaces written by Otgonchimeg Davaadorj and published by . This book was released on 2018 with total page 245 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract This research project investigates shear transfer across concrete-to-concrete and steel-to-concrete interfaces where “sliding shear” failure is critical. Experimental data available in the literature were collected and statistically analyzed. Based on the experimental data available for concrete-to-concrete interfaces, a strength prediction model was calibrated and proposed. The performance of this new model, built on the framework of the model proposed by Mattock (2001), was compared against current design code provisions and some of the available models proposed by others over the years. The database assembled for steel-to concrete interfaces was also used to examine the performance of some of the existing design equations and strength models. In addition, the analysis of the database led to the identification of a number of important gaps in the literature. Amongst those, the lack of tests on embed plates subjected to combined shear and bending actions was of particular concern. Thus, an experimental program involving a total of five specimens was planned and conducted. The main variables considered were the load eccentricity and the stud distribution across the embed plate. The results of the experiments shed some light on the complex mechanisms that contribute to the interface strength, providing some preliminary insight and qualitative information on the aspects that should be incorporated in a rational design model. In the sub-discipline of concrete engineering, shear transfer across both concrete-to-concrete and steel-to-concrete interfaces is treated as a frictional phenomenon, whereas, in the steel sub-discipline, shear transfer across steel-to-concrete interfaces is treated as a dowel action phenomenon. Both approaches can predict similar strengths if they are suitably calibrated, but some of the subtleties of the behavior of steel-to-concrete interfaces appear to be better modeled using the dowel action approach.
Download or read book Adjacent Precast Concrete Box Beam Bridges written by H. G. Russell and published by Transportation Research Board. This book was released on 2009 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt: At head of title: National Cooperative Highway Research Program.
Download or read book Advanced Materials Interfaces written by Ashutosh Tiwari and published by John Wiley & Sons. This book was released on 2016-06-22 with total page 528 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advanced Material Interfaces is a state-of-the-art look at innovative methodologies and strategies adopted for interfaces and their applications. The 13 chapters are written by eminent researchers not only elaborate complex interfaces fashioned of solids, liquids, and gases, but also ensures cross-disciplinary mixture and blends of physics, chemistry, materials science, engineering and life sciences. Advanced interfaces operate fundamental roles in essentially all integrated devices. It is therefore of the utmost urgency to focus on how newly-discovered fundamental constituents and interfacial progressions can be materialized and used for precise purposes. Interfaces are associated in wide multiplicity of application spectrum from chemical catalysis to drug functions and the advancement is funnelled by fine-tuning of our fundamental understanding of the interface effects.
Download or read book NUREG CR written by U.S. Nuclear Regulatory Commission and published by . This book was released on 1979 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1974 with total page 1174 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Building for the Future Durable Sustainable Resilient written by Alper Ilki and published by Springer Nature. This book was released on 2023-07-04 with total page 1808 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents the proceedings of the fib Symposium “Building for the future: Durable, Sustainable, Resilient”, held in Istanbul, Turkey, on 5–7 June 2023. The book covers topics such as concrete and innovative materials, structural performance and design, construction methods and management, and outstanding structures. fib (The International Federation for Structural Concrete) is a not-for-profit association whose mission is to develop at an international level the study of scientific and practical matters capable of advancing the technical, economic, aesthetic, and environmental performance of concrete construction.
Download or read book FRP Composites in Civil Engineering CICE 2004 written by R. Seracino and published by Taylor & Francis. This book was released on 2004-12-15 with total page 1005 pages. Available in PDF, EPUB and Kindle. Book excerpt: The range of fibre-reinforced polymer (FRP) applications in new construction, and in the retrofitting of existing civil engineering infrastructure, is continuing to grow worldwide. Furthermore, this progress is being matched by advancing research into all aspects of analysis and design. The Second International Conference on FRP Composites in
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 2013-11-21 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt: Masters Theses in the Pure and Applied Sciences was first conceived, published, and dis seminated by the Center for lnformation and Numerica/ Data Analysis and Synthesis (C/NDAS) * at Purdue University in 1957, starting its coverage of theses with the academic year 1955. Beginning with Volume 13, the printing and dissemination phases of the ac tivity were transferred to University Microfilms/Xerox of Ann Arbor, Michigan, with the thought that such an arrangement would be more beneficia! to the academic and general scientific and technical community. After fi ve years of this joint undertaking we had concluded that it was in the interest of ali concerned if the printing and distribution of the volume were handled by an international publishing house to assure improved service and broader dissemination. Hence, starting with Volume 18, Masters Theses in the Pure and App/ied Sciences has been disseminated on a worldwide basis by Plenum Publishing Corporation of New York, and in the same year the coverage was broadened to include Canadian universities. Ali back issues can also be ordered from Plenum. We have reported in Volume 21 (thesis year 1976) a total of 10,586 theses titles from 25 Canadian and 219 United States universities. We are sure that this broader base for theses titles reported will greatly enhance the value of this important annual reference work.
Download or read book Structural Analysis of Historical Constructions 2 Volume Set written by Claudio Modena and published by CRC Press. This book was released on 2018-10-30 with total page 1466 pages. Available in PDF, EPUB and Kindle. Book excerpt: Structural Analysis of Historical Constructions contains about 160 papers that were presented at the IV International Seminar on Structural Analysis of Historical Constructions that was held from 10 to 13 November, 2004 in Padova Italy. Following publications of previous seminars that were organized in Barcelona, Spain (1995 and 1998) and Guimarães, Portugal (2001), state-of-the-art information is presented in these two volumes on the preservation, protection, and restoration of historical constructions, both comprising monumental structures and complete city centers. These two proceedings volumes are devoted to the possibilities of numerical and experimental techniques in the maintenance of historical structures. In this respect, the papers, originating from over 30 countries, are subdivided in the following areas: Historical aspects and general methodology, Materials and laboratory testing, Non-destructive testing and inspection techniques, Dynamic behavior and structural monitoring, Analytical and numerical approaches, Consolidation and strengthening techniques, Historical timber and metal structures, Seismic analysis and vulnerability assessment, Seismic strengthening and innovative systems, Case studies. Structural Analysis of Historical Constructions is a valuable source of information for scientists and practitioners working on structure-related issues of historical constructions
Download or read book Computational Methods in Nonlinear Structural and Solid Mechanics written by Ahmed K. Noor and published by Elsevier. This book was released on 2014-05-20 with total page 472 pages. Available in PDF, EPUB and Kindle. Book excerpt: Computational Methods in Nonlinear Structural and Solid Mechanics covers the proceedings of the Symposium on Computational Methods in Nonlinear Structural and Solid Mechanics. The book covers the development of efficient discretization approaches; advanced numerical methods; improved programming techniques; and applications of these developments to nonlinear analysis of structures and solids. The chapters of the text are organized into 10 parts according to the issue they tackle. The first part deals with nonlinear mathematical theories and formulation aspects, while the second part covers computational strategies for nonlinear programs. Part 3 deals with time integration and numerical solution of nonlinear algebraic equations, while Part 4 discusses material characterization and nonlinear fracture mechanics, and Part 5 tackles nonlinear interaction problems. The sixth part discusses seismic response and nonlinear analysis of concrete structure, and the seventh part tackles nonlinear problems for nuclear reactors. Part 8 covers crash dynamics and impact problems, while Part 9 deals with nonlinear problems of fibrous composites and advanced nonlinear applications. The last part discusses computerized symbolic manipulation and nonlinear analysis software systems. The book will be of great interest to numerical analysts, computer scientists, structural engineers, and other professionals concerned with nonlinear structural and solid mechanics.
Download or read book Proceedings fib Symposium in Tel Aviv Israel written by FIB – International Federation for Structural Concrete and published by FIB - Féd. Int. du Béton. This book was released on 2013-04-01 with total page 746 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Life Cycle and Sustainability of Civil Infrastructure Systems written by Alfred Strauss and published by CRC Press. This book was released on 2012-09-18 with total page 513 pages. Available in PDF, EPUB and Kindle. Book excerpt: Life-Cycle and Sustainability of Civil Infrastructure Systems contains the lectures and papers presented at the Third International Symposium on Life-Cycle Civil Engineering (IALCCE 2012) held in one of Vienna‘s most famous venues, the Hofburg Palace, October 3rd-6th, 2012. This volume consists of a book of extended abstracts (516 pp) and a DVD-ROM
Download or read book Direct Shear Transfer of Lightweight Aggregate Concretes with Non monolithic Interface Conditions written by Dane Michael Shaw and published by . This book was released on 2013 with total page 141 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This thesis describes the results of a study initiated to examine the influence of concrete unit weight on the direct shear transfer across an interface of concretes cast at different times. This type of interface is common with structural precast concrete connections, such as corbels, for which shear friction design provisions are commonly used. Increasing use of lightweight aggregate concretes prompted this investigation to determine the appropriateness of current shear friction design provisions with respect to all-lightweight and sand-lightweight concrete. The experimental investigation included thirty-six push-off test specimens, each of which was constructed with a cold-joint at the interface shear plane. Test variables included unit weight of concrete (108, 120, and 145 pcf), target compressive strength of concrete (5000 and 8000 psi), and interface condition (smooth or roughened). A constant amount of reinforcing steel was provided across the shear plane. Results suggest that concrete unit weight did not play a significant role in the interface shear strength for the cold-joint specimens in this study. Results were also compared with shear friction design provisions in both the ACI 318 code and the PCI Design Handbook. Shear strengths computed using the coefficient of friction [mu] approach were conservative for the sand-lightweight and all-lightweight cold-joint specimens in this study. The value of the effective coefficient of friction [mu subscript e] computed using the PCI Design Handbook approach was found to be conservative for both roughened and smooth non-monolithic interfaces for each concrete type. Finally, the use of the lightweight concrete modification factor [lambda] in the calculation for the effective coefficient of friction [mu subscript e] was found to be conservative for the sand-lightweight and all-lightweight cold-joint specimens in this study. This study is sponsored by the Precast/Prestressed Concrete Institute Daniel P. Jenny Fellowship Program and the National University Transportation Center at the Missouri University of Science and Technology in Rolla, Missouri"--Abstract, page iii.
