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  FUNDAMENTALS OF ACOUSTICS-Fourth Edition
Posted by: david-smith - 06-02-2012, 07:58 AM - Forum: Architecture Books - Replies (1)

FUNDAMENTALS OF ACOUSTICS-Fourth Edition

Author: LAWRENCE E. KINSLER-AUSTIN R. FREY-ALAN B. COPPENS-JAMES V. SANDERS | Size: 19.7 MB | Format: PDF | Quality: Scanner | Publisher: John Wiley & Sons, Inc. | Year: 2000 | pages: 567 | ISBN: ISBN-10: 0471847895 | ISBN-13: 978-0471847892

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The classic acoustics reference! This widely-used book offers a clear treatment of the fundamental principles underlying the generation, transmission, and reception of acoustic waves and their application to numerous fields. The authors analyze the various types of vibration of solid bodies and the propagation of sound waves through fluid media.
--------------------------------
PREFACE
Credit for the longevity of this work belongs to the original two authors, Lawrence Kinsler and Austin Frey, both of whom have now passed away. When Austin entrusted us with the preparation of the third edition, our goal was to update the text while maintaining the spirit of the first two editions. The continued acceptance of this book in advanced undergraduate and introductory graduate courses suggests that this goal was met. For this fourth edition, we have continued this updating and have added new material. Considerable effort has been made to provide more homework problems. The total number has been increased from about 300 in the previous editions to over 700 in this edition. The availability of desktop computers now makes it possible for students to investigate many acoustic problems that were previously too tedious and time consuming for classroom use. Included in this category are investigations of the limits of validity of approximate solutions and numerically based studies of the effects of varying the various parameters in a problem. To take advantage of this new tool, we have added a great number of problems (usually marked with a suffix "c" )where the student may be expected to use or write computer programs. Any convenient programming language should work, but one with good graphing software will make things easier. Doing these problems should develop a greater appreciation of acoustics and its applications while also enhancing computer skills.
The following additional changes have been made in the fourth edition:
(1) As an organizational aid to the student, and to save instructors some time, equations, figures, tables, and homework problems are all now numbered by chapter and section. Although appearing somewhat more cumbersome, we believe the organizational advantages far outweigh the disadvantages.
(2) The discussion of transmitter and receiver sensitivity has been moved to Chapter 5 to facilitate early incorporation of microphones in any accompanying laboratory.
(3) The chapters on absorption and sources have been interchanged so that the discussion of beam patterns precedes the more sophisticated discussion of absorption effects.
(4) Derivations from the diffusion equation of the effects of thermal conductivity on the attenuation of waves in the free field and in pipes have been added to the chapter on absorption.
(5) The discussions of normal modes and waveguideshave been collected into a single chapter and have been expanded to include normal modes in cylindrical and spherical cavities and propagation in layers.
(6) Considerations of transient excitations and orthonormality have been enhanced.
(7) Two new chapters have been added to illustrate how the principles of acoustics can be applied to topics that are not normally covered in an undergraduate course. These chapters, on finite-amplitude acoustics and shock waves, are not meant to survey developments in these fields. They are intended to introduce the relevant underlying acoustic principles and to demonstratehow the fundamentals of acoustics can be extended to certain more complicated problems. We have selected these examples from our own areas of teaching and research.
(8) The appendixes have been enhanced to provide more information on physical constants, elementary transcendental functions (equations, tables, and figures), elements of thermodynamics, and elasticity and viscosity.
New materials are frequently at a somewhat more advanced level. As in the third edition, we have indicated with asterisks in the Contents those sections in each chapter that can be eliminated in a lower-level introductory course. Such a course can be based on the first five or six chapters with selected topics from the seventh and eighth. Beyond these, the remaining chapters are independent of each other (with only a couple of exceptions that can be dealt with quite easily), so that topics of interest can be chosen at will. With the advent of the handheld calculator, it was no longer necessary for textbooks to include tables for trigonometric, exponential, and logarithmic functions. While the availability of desktop calculators and current mathematical software makes it unnecessary to include tables of more complicated functions (Bessel functions, etc.), until handheld calculators have these functions programmed into them, tables are still useful. However, students are encouraged to use their desktop calculators to make fine-grained tables for the functions found in the appendixes. In addition, they will find it useful to create tables for such things as the shock parameters in Chapter 17.

Alan B. Coppens
Black Mountain, NC
James V. Sanders
Monterey, CA
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  Alternate Path method in progressive collapse analysis: Variation of dynamic and non-
Posted by: david-smith - 06-02-2012, 07:36 AM - Forum: Archive - Replies (1)

Alternate Path method in progressive collapse analysis: Variation of dynamic and non-linear load increase factors

Author: Aldo E McKay (Author) | Size: ? MB | Format: PDF | Quality: Unspecified | Publisher: ProQuest, UMI Dissertation Publishing | Year: 2011 | pages: 86 | ISBN: 1243451807-978-1243451804

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As a result of the increasing number of terrorist attacks registered against American facilities in the United States or abroad, United States government agencies continue to improve the design of their buildings to make them safer and less vulnerable to terrorist attacks. One of the factors typically considered in designing safer buildings and structures, is their ability to prevent total collapse after the loss of load-carrying components (Progressive Collapse) resulting from a terrorist attack. The consequences of not having a building capable of reducing the potential for progressive collapse could be catastrophic, as it was the case of the Oklahoma City bombing in 1995 where 42% of the Alfred P. Murrah Federal Building was destroyed by progressive collapse and only 4% by the explosion or blast. This attack claimed 168 lives and left over 800 injured. Over the last 10 years, two United States government agencies have developed guidelines for the design of their structures to resist progressive collapse: (1) The General Services Administration, "Progressive Collapse Analysis and Design Guidelines," (GSA Guidelines) and (2) The Department of Defense Unified Facilities Criteria 4-023-03 "Design of Buildings to Resist Progressive Collapse" (UFC 4-023-03). Within both approaches, the main direct design procedure is the Alternate Path (AP) method, in which a structure is analyzed for collapse potential after the removal of a column or section of wall. Different analytical procedures may be used, including Linear Static (LS), Nonlinear Static (NLS), and Nonlinear Dynamic (NLD). Typically, NLD procedures give better and more accurate results, but are more complicated and expensive. As a result, designers often choose static procedures, which tend to be simpler, requiring less labor. As progressive collapse is a dynamic and nonlinear event, the load cases for the static procedures require the use of factors to account for inertial and nonlinear effects, similar to the approach used in ASCE Standard 41 "Seismic Rehabilitation of Existing Buildings" (ASCE 41). A number of inconsistencies have been indentified in the way the existing guidelines applied dynamic and non-linear load factors to their static approaches. As part of an existing effort to update the existing guidelines, this study used SAP2000 to perform several AP analyses on a variety of Reinforced Concrete and Steel Moment Frame buildings to investigate the magnitude and variation of the dynamic and non-linear load increase factors. The study concluded that the factors in the existing guidelines tend to yield overly conservative results, which often translate into expensive design and retrofits. This study indentified new load increase factors and proposes a new approach to utilize these factors when performing AP analyses for Progressive Collapse.

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  ProtectedPdf DRM
Posted by: deviationz - 06-02-2012, 01:51 AM - Forum: Free Discussion - No Replies

All,
I have a few ACI documents that are password protected by Vitrium DRM. Is there a way to unlock them?

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  Randolph; Wroth, Analysis of vertically loaded piles and pg
Posted by: mary - 06-01-2012, 04:16 PM - Forum: Archive - Replies (2)

Dear all, I'm looking for these papers

[1] M.F. Randolph, C.P. Wroth, Analysis of the deformation of vertically loaded piles,
J. Geotech. Eng. Div., ASCE 104 (12) (1978) 1465–1488.

[2] M.F. Randolph, C.P. Wroth, An analysis of the vertical deformation of pile groups,
Geotechnique 29 (4) (1979) 423–439

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  The pressuremeter and Foundation Engineering
Posted by: pelelo - 06-01-2012, 04:10 PM - Forum: Archive - No Replies

Hello,

I am looking for the following book:


" The pressuremeter and Foundation Engineering" by F.Baguelin, J-F Jezequel and D.H. Shields ,1978, Trans Tech Publications

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  aluminium pedestrian bridge
Posted by: bettorman - 06-01-2012, 03:17 PM - Forum: Request for Civil Engineering Documents - No Replies

hi everybody, have you got any calculation and design report, drawings of the aluminium pedestrian bridge?

Thanks a lot.

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  An Introduction to Seismic Isolation,R. Ivan Skinnerl , William H. Robinson,and Graem
Posted by: david-smith - 06-01-2012, 02:46 PM - Forum: Structural Dynamics and Earthquake Engineering - Replies (6)

An Introduction to Seismic Isolation

Author: R. Ivan Skinner , William H. Robinson,and Graeme H. McVerry | Size: 43.6 MB | Format: PDF | Quality: Scanner | Publisher: John Wiley & Sons | Year: 1993 | pages: 376 | ISBN: 047193433X-978-0471934332

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i don't think this book needs to be introduced,but:
Editorial Reviews
Book Description
These authors present much sought after information on the design procedures for seismically isolated structures. Using a logical progression, they describe seismic isolation along with the concepts of earthquake structural dynamics underlying the isolation theory. Methods discussed will provide the basis for continuing development and refinement.
----------------------------
From the Publisher
These authors present much sought after information on the design procedures for seismically isolated structures. Using a logical progression, they describe seismic isolation along with the concepts of earthquake structural dynamics underlying the isolation theory. Methods discussed will provide the basis for continuing development and refinement.
-------------
Skinner et al. book on seismic isolation is much more than an introduction, is a must to anyone interested on the subjects of seismic isolation and passive energy dissipation. The book is quite complete, and it is easy to read (if you do not mind NZ English), both for students or experienced professionals or professors. All chapters have basic and advanced material. The book is not married with a single base isolation system, a difference with other books available on this topic. I am looking forward to a second edition of this book that may add some new material on the development of other isolation devices and design methods that have been proposed during the last seven years.
------------------------
Written by the precursors of modern seismic isolation technology, "An Introduction to seismic isolation" is one of the most challenging treatments in structural dynamics so far. Skinner et al first introduce the reader to the concept of seismic isolation as a whole, explaining the philosophy behind this technique, followed by a brief review of the structural dynamics theory needed for the basic understanding of the more specifically mathematical explanations in chapter 4, where the equations of motion for the theoretical models are explicitly derived. Here, the authors make the difference, providing a good treatment in which a high mathematical understanding level is required. Chapter 3 is a complete description of the different seismic isolation systems available, describing their controlling parameters, composition, tested performance and analytical models for design. Chapter 5 is an excellent guide for analysis and design, from a more practical point of view. Chapter 6 is simply a description of some of the more prominent seismic isolation projects worldwide. Until now, the best reference, sophisticated yet understandable bibliography about seismic isolation.

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  Fracture Mechanics: Inverse Problems and Solutions
Posted by: lisine - 06-01-2012, 02:46 PM - Forum: Mechanics & Material Technology (Elasticity, Plasticity and Nonlinearity) - Replies (1)

Fracture Mechanics: Inverse Problems and Solutions

Author: Huy Duong Bui | Size: 21.4 MB | Format: PDF | Quality: Original preprint | Publisher: Springer | Year: September 14, 2006 | pages: 398 | ISBN: 140204836X, ISBN-13: 978-1402048364

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This book presents, in a unified manner, a variety of topics in Continuum and Fracture Mechanics: energy methods, conservation laws, mathematical methods to solve two-dimensional and three-dimensional crack problems. Moreover, a series of new subjects is presented in a straightforward manner, accessible to under-graduate students. Emphasizing physical or experimental back-grounds, then analysis and theoretical results, this monograph is intended for use by students and researchers in solid mechanics, mechanical engineering and applied mathematics.

Hardcover (September 14, 2006)
ISBN-10: 140204836X
ISBN-13: 978-1402048364

Paperback (Reprint September 8, 2011)
ISBN-10: 9048172071
ISBN-13: 978-9048172078

Note:
Each chapter is single pdf file

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  Statistics for Environmental Engineers - by Linfield C. Brown, Paul Mac Berthouex
Posted by: lisine - 06-01-2012, 01:54 PM - Forum: Environmental Engineering - Replies (2)

Statistics for Environmental Engineers - 2nd Edition

Author: Linfield C. Brown, Paul Mac Berthouex | Size: 7.55 MB | Format: PDF | Quality: Original preprint | Publisher: CRC Press | Year: January 29, 2002 | pages: 512 | ISBN: 1566705924, ISBN-13: 978-1566705929

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Two critical questions arise when one is confronted with a new problem that involves the collection and analysis of data. How will the use of statistics help solve this problem? Which techniques should be used? Statistics for Environmental Engineers, Second Edition helps environmental science and engineering students answer these questions when the goal is to understand and design systems for environmental protection. The second edition of this bestseller is a solutions-oriented text that encourages students to view statistics as a problem-solving tool.

Written in an easy-to-understand style, Statistics for Environmental Engineers, Second Edition consists of 54 short, "stand-alone" chapters. All chapters address a particular environmental problem or statistical technique and are written in a manner that permits each chapter to be studied independently and in any order. Chapters are organized around specific case studies, beginning with brief discussions of the appropriate methodologies, followed by analysis of the case study examples, and ending with comments on the strengths and weaknesses of the approaches.

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  Springer_Arabian Journal of Science and Engineering
Posted by: Badis - 06-01-2012, 01:45 PM - Forum: Archive - Replies (1)

Dear all, I'm looking for these papers from (Springer) Arabian Journal for Science and Engineering

Seismic Vulnerability Assessment of Existing Multi-Story Reinforced Concrete Buildings in Egypt
Said A. El-Kholy, Mohamed S. El-Assaly and Medhat Maher
Volume 37, Number 2 (2012), 341-355, DOI: 10.1007/s13369-012-0170-0

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Earthquakes, Existing Buildings and Seismic Design Codes in Turkey
A. Ilki and Z. Celep
Volume 37, Number 2 (2012), 365-380, DOI: 10.1007/s13369-012-0183-8
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Experimental and Analytical Analysis of RC Frames Strengthened Using RC External Shear Walls
M. Yasar Kaltakci, M. Hakan Arslan and Ulku S. Yilmaz
Volume 36, Number 5 (2011), 721-747, DOI: 10.1007/s13369-011-0074-4
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