Stability of metal structures: a world view (part 1-4)
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A clear understanding of the effects of torsion on concrete members is essential to the safe, economical design of reinforced and prestressed concrete members. This report begins with a brief and systematic summary of the 180-year history of torsion of structural concrete members, new and updated theories and their applications, and a historical overview outlining the development of research on torsion of structural concrete members. Historical theories and truss models include classical theories of Navier, Saint-Venant, and Bredt; the three-dimensional (3-D) space truss of Rausch; the equilibrium (plasticity) truss model of Nielson as well as Lampert and Thürlimann; the compression field theory (CFT) by Collins and Mitchell; and the softened truss model (STM) by Hsu and Mo.
This report emphasizes that it is essential to the analysis of torsion in reinforced concrete that members should: 1) satisfy the equilibrium condition (Mohr’s stress circle); 2) obey the compatibility condition (Mohr’s strain circle); and 3) establish the constitutive relationships of materials such as the “softened” stress-strain relationship of concrete and “smeared” stress-strain relationship of steel bars. The behavior of members subjected to torsion combined with bending moment, axial load, and shear is discussed. This report deals with design issues, including compatibility torsion, spandrel beams, torsional limit design, open sections, and size effects.
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Dictionary of Building and Civil Engineering: English, German, French, Dutch, Russian
Author: S.N. Korchomkin , S.V. Kurbatov , N.B. Sheikhon and G. B. Viljkovyskaja | Size: 121 MB | Format:PDF | Quality:Unspecified | Publisher: Springer | Year: 2014 (reprint of 1985 ed) | pages: 936 | ISBN: 940157409X ISBN13: 9789401574099
In the last few decades civil engineering has undergone substantial technological change which has, naturally, been refleded in the terminology employed in the industry. Efforts are now being made in many countries to bring about a systematization and unification of technical terminology in general, and tbat of civil engineering in particular. The publication of a multilingual didionary of civil engineering terms has been necessitat ed by the expansion of international cooperation and information exchange in tbis field, as by the lack of suitable updated bilingual didionaries. well as This Didionary contains some 14 000 English terms together with their German, French, Dutch and Russian equivalents, which are used in the main branches of civil engineering and relate to the basic principles of structural design and calculations (the elasticity theory, strength of materials, soi! mechanics and other allied technical disciplines); to buildings and installations, strudures and their parts, building materials and prefabrications, civil engineering tecbnology and practice, building and road construction macbines, construdion site equipment, housing equipment and fittings (includ ing modern systems of air conditioning); as well as to hydrotechni cal and irrigation constructions. The Dictionary also includes a limited number of basic technical expressions and terms relating to allied disciplines such as architecture and town planning, as well as airfield, railway and underground construction. The Dictionary does not Iist trade names of bui Iding materials, parts and machines or the names of chemical compounds. Nor does it give adverbial, adjective or verbal terms.
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Mechanical Vibrations: Theory and Application to Structural Dynamics, Third Edition is a comprehensively updated new edition of the popular textbook. It presents the theory of vibrations in the context of structural analysis and covers applications in mechanical and aerospace engineering. Although keeping the same overall structure, the content of this new edition has been significantly revised in order to cover new topics, enhance focus on selected important issues, provide sets of exercises and improve the quality of presentation. Without being exhaustive (see the Introduction for a comprehensive list), some key features include: a systematic approach to dynamic reduction and substructuring, based on duality between mechanical and admittance concepts; an introduction to experimental modal analysis and identification methods; an improved, more physical presentation of wave propagation phenomena; a comprehensive presentation of current practice for solving large eigenproblems, focusing on the efficient linear solution of large, sparse and possibly singular systems; a deeply revised description of time integration schemes, providing framework for the rigorous accuracy/stability analysis of now widely used algorithms such as HHT and Generalized; solved exercises and end of chapter homework problems; and, a companion website hosting supplementary material. With revised, coherent and uniform notation, Mechanical Vibrations: Theory and Application to Structural Dynamics, Third Edition is a must-have textbook for graduate students working with vibration in mechanical, aerospace and civil engineering, and is also an excellent reference for researchers and industry practitioners.
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Author: Sinniah Ilanko, Luis E. Monterrubio | Size: 4.7 MB | Format:PDF | Quality:Unspecified | Publisher: iSTE | Year: 2014 | pages: 254
A presentation of the theory behind the Rayleigh–Ritz (R–R) method, as well as a discussion of the choice of admissible functions and the use of penalty methods, including recent developments such as using negative inertia and bi–penalty terms. While presenting the mathematical basis of the R–R method, the authors also give simple explanations and analogies to make it easier to understand. Examples include calculation of natural frequencies and critical loads of structures and structural components, such as beams, plates, shells and solids. MATLAB codes for some common problems are also supplied.
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thank you a million for making my way through studies and research easier. You always provided wind into my sails when needed - thanks for all the information and advices shared throughout this platform of virtual-reality. Moreover thanks for all the friendships I gained here and eventually transferred into real world. Without all of this my dream would not be possible or would be realized with much more struggle. You are a part of my PhD! Thank you!
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