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
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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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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Surface waves can be used to determine the shear velocity profile from the ground surface to some depth limited by the spectral band of the seismic source. A number of factors influence the uncertainties of the determined profile. The field acquisition factors include the deployment geometry of geophones, the spectral characteristics of the geophones, recording instruments, and seismic source. A key data processing factor is the determination of a dispersion curve from the field recordings. Finally, there are important choices in conducting the inversion of the dispersion curve \vhich leads to the final soil profile. Even if the field factors and acquired data are fixed, determination of the dispersion and the inversion decisions will have a strong influence on the final result. Different engineers will make different decisions, and a range of soil profiles can be expected. Assessment of this variability was the goal of the Surface Wave Benchmark Study sponsored by the Geophysical Engineering Committee of ASCE. Participants were invited to analyze as little or as much of the data as they wished. This paper documents one participant's analysis of a selected set of the data taken at a single location. A key finding documents how a lack of low frequency content limits the maximum depth for which one can have confidence in the soil profile.
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Improving MASW Results for a Site with Shallow Bedrock through the Use of Higher‐Mode Data
Author: Daniel et al | Size: 1.23 MB | Format:PDF | Quality:Unspecified | Publisher: GeoFlorida 2010: Advances in Analysis, Modeling & Design | Year: 2010 | pages: 1360 - 1368
In a case where the active-source multi-channel analysis of surface waves method was applied to a site consisting of clay residuum overlying basalt bedrock, inversion for the undamental-mode Rayleigh wave results in shear-wave velocities for the rock that are much lower than expected values. preliminary results from multi-mode inversions incorporating data from the 1st and 2nd higher-order modes provide more realistic velocities within the bedrock than could be obtained using the fundamental-mode data alone. However, the model data fit shows much room for improvement. Acquiring, processing and interpreting multi-mode data poses some challenges that need further research.
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Influence of Local Site Conditions on the Reliability of Fundamental-Mode Surface Wave Inversion Method
Geotechnical Testing Journal, Vol. 32, No. 5, pp. 428-437
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Caveats in Multi-modal Inversion of Seismic Surface Wavefields
Pure and Applied Geophysics
Volume 163, Number 7 (2006), 1215-1233
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As steel reinforced concrete has got wide range of applications, this project is an attempt to study the dynamic behavior of steel reinforced concrete subjected to blast and pressure loadings using a non-linear finite element code LS-DYNA (version 971). The aim of this project was to analyze various parameters of a steel reinforced concrete slab by validating three of the concrete material models in LS-DYNA.
The first part of the project consists of validating three concrete material models in LS-DYNA by applying boundary conditions on simple single elements. The next part consists of using these three concrete material models of LS-DYNA (version 971) for the study of blast and pressure load analysis on a steel reinforced concrete slab for two different strengths of concrete with two different mesh sizes.
The main purpose of this analysis was to provide the behavior of these concrete material models subjected to blast loads, which would be a better guide for future applications.
Posted by: david-smith - 06-01-2012, 08:35 AM - Forum: Archive
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LS-DYNA for Beginners: An insight into Ls-Prepost and Ls-Dyna
Author: Qasim Shah (Author), Hasan Abid (Author) | Size: ? MB | Format:PDF | Quality:Unspecified | Publisher: LAP LAMBERT Academic Publishing | Year: 2012 | pages: 152 | ISBN: 3846556777-978-3846556771
LS-DYNA is one of the best explicit Finite Element application software made by Livermore Software Technology Corporation (LSTC)which is used by engineers to predict the consequences of impact, crash, and other dynamic loads on structures. Vibrations, fluid flow, fluid structure interaction and many other engineering problems can be solved using LS-DYNA. This book guides a beginner by presenting a step by step procedure to solve problems of diverse nature using LS-PrePost and LS-Dyna. A lot of necessary information is contained in 18 chapters that would enable the engineers to solve various problems. This book is especially designed to help the senior undergraduate and post graduate engineering students in the field of mechanical, manufacturing and civil engineering to facilitate them in their research projects.
Editorial Reviews
About the Author
Dr. Qasim H. Shah is Associate Professor at the Department of Mechanical Engineering, International Islamic University Malaysia. His research interests include predicting the damage and failure of structural elements subjected to dynamic loads like impacts, explosions, and fluid structure interactions.
This test method provides a stress-strain response of the soil in situ. A pressuremeter modulus and a limit pressure is obtained for use in geotechnical analysis and foundation design.
The results of this test method are dependent on the degree of disturbance during drilling of the borehole and insertion of the pressuremeter probe. Since disturbance cannot be completely eliminated, the interpretation of the test results should include consideration of conditions during drilling. This disturbance is particularly significant in very soft clays and very loose sands. Disturbance may not be eliminated completely but should be minimized for the prebored pressuremeter design rules to be applicable.
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fib Bulletin 40 deals mainly with the use of FRP bars as internal reinforcement for concrete structures. The background of the main physical and mechanical properties of FRP reinforcing bars is presented, with special emphasis on durability aspects. For each of the typical ultimate and serviceability limit states, the basic mechanical model is given, followed by different design models according to existing codes or design guidelines.
Composite FRP materials are still relatively new in construction and most engineers are unfamiliar with their properties and characteristics. The second chapter of this bulletin therefore aims to provide practising engineers with the necessary background knowledge in this field, and also presents typical products currently available in the international market.
The third chapter deals with the issue of durability and identifies the parameters that can lead to deterioration, which is necessary information when addressing design issues. A series of parameters is used to identify the allowable stress in the FRP after exposure for a specified period of time in a specific environment.
The bulletin covers the issues of Ultimate Limit States (primarily dealing with flexural design), Serviceability Limit States (dealing with deflections and cracking), Shear and Punching Shear and Bond and Tension Stiffening. It provides not only the state-of-the-art but also in many cases ideas for the next generation of design guidelines.
The final chapter deals with the fundamental issue of design philosophy. The use of these new materials as concrete reinforcement has forced researchers to re-think many of the fundamental principles used until now in RC design. The bulletin ends with a discussion of a possible new framework for developing partial safety factors to ensure specific safety levels that will be flexible enough to cope with new materials.
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