Posted by: hmwere - 11-24-2010, 05:41 AM - Forum: Archive
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CivilEAns, I am very much interested in low cost housing projects.
In case amongst us, there some with papers, journals, books, or anything else pertaining to this, please avail some time and try uploading. It will be so much appreciated.
Equivalent Static vs. Response Spectrum A Comparison of Two Methods
By David T. Finley, Ricky A. Cribbs
6 Pages
0.5 MB rar file size
In recent years the state of the art of seismic analysis has increased along with the delopment of technology. The developments in computer hardware and software have made analysis techniques which were formerly too expensive within the reach of most project budgets. Foremost among these has been the response spectrum analysis method for seismic analysis.
In this paper we will review the basics of equivalent static and response spectrum analyses, and their specific use in the analysis and design of an optical telescope. We will compare and contrast response spectrum analysis with the more typical equivalent static analysis, and point out conditions in which one would be preferred over the other. In addition, correct interpretation and use of analysis results will be discussed. These issues will be investigated and discussed using the ongoing VISTA optical telescope structure as an example.
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You may want to look at this book. It is old but covers a lot what you are looking for.
Best of luck.
Adam
Public Health Engineering: Sewerage 2nd Ed.
Author: Bartlett, Ronald E.
Publisher: Taylor & Francis
Format: PDF
Content Language: English
ISBN: 0203210891
Size: 9,116 KB
Publication Date: 2007-04-16
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Item 1: I have a terrible time using the search engine. Always it comes back with BINGO, reflecting my empty mind. Can some directions be given. I am not able to find them so far, and it is holding me back from posting anything (I am not joking).
Item 2: Secondly, and more importantly, the rolling thread is too short. I try to watch it regularly, but lost a couple of days due to sickness. Is there a way to record what gets posted (rolling thread-wise or whatever) for the last 5 to 7 days. Otherwise, there are items I will never know about that I miss unless someone raises them in future. This one is more demanding from my perspective, because we can only devote so much time to what is turning into a vibrant and everchanging forum discussion.
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Seismic Retrofitting of Historic Masonry Buildings – Case Study
Journal: Advanced Materials Research (Volumes 133 - 134)
Volume: Structural Analysis of Historic Constructions
Edited by: Xianglin Gu and Xiaobin Song
Pages: 991-996
Citation: A.R. Santhakumar et al., 2010, Advanced Materials Research, 133-134, 991
Online since: October, 2010
Authors: A.R. Santhakumar, M.S. Mathews, S. Thirumurugan, Rao Uma
Keywords:
Brick, Burnt Clay Brick, Carbon Fiber Sheet (CFS), Ferro-Cement, Ferrocement Bands, Lime Concrete, Load-Bearing Masonry, Retrofitting, Wire-Mesh
Abstract Masonry heritage building built during early part of 19th century have characteristic colonial architecture using masonry walls and jack arch roofing supported on steel beams. They are highly vulnerable to failure during earthquakes. This paper describes a methodology to quantify their vulnerability and then based on this a scheme of structural retrofitting is suggested. The aim of this presentation, through 4 case studies of buildings located in Delhi, India, is to exemplify various aspects of analysis, design and execution methodology of the retrofitting scheme for such important heritage structures. The assessment of vulnerability is based on its location, codes of practice with respect to materials and loading. The main challenge in choosing the appropriate retrofitting scheme lies in retaining the architecture and aesthetics. Also the retrofitting has to be completed in the least possible time causing minimum disturbance to the occupants. This has been achieved through a combination of Ferro-cement bands and FRP sheets. The execution of retrofitting was considered to make use of available local materials and expertise. The building is analysed in detail and the areas where stress concentration takes place is further strengthened.
The article can be found at:
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Author: C H Goodchild | Size: 11.9 MB | Format:PDF | Publisher: British Cement Association | Year: 1995 | pages: 67 | ISBN: 721014798
Hybrid concrete construction is essentially the combination of in-situ concrete with precast concrete, steelwork or other materials. It provides simple, buildable and competitive high-quality structures that offer consistent performance.
This publication illustrates in-situ concrete, precast concrete, steelwork and other materials working together in building structures. It shows how the benefits of each material have been harnessed to produce hybrid concrete solutions that suited particular sets of circumstances. The examples show how hybrid concrete construction can provide economy, speed, flexibility and buildability while giving high-quality and aesthetically pleasing buildings. Many contemporary buildings are hybrids of different materials; indeed reinforced concrete is a hybrid of concrete and steel.
Current trends in building point towards more prefabrication, more efficiency, reduced site activity, and safer and faster construction, Owners and tenants are demanding higher quality, with lower costs and reduced maintenance. Designers, striving to achieve these goals, will become even more aware of the implications of their designs in terms of buildability and total costs, and materials will be used to better advantage. Concrete hybrid structures and hybrid elements will become more common as their potential is realized and familiarity grows.
Many precast and in-situ concrete hybrids have been developed overseas and are commonplace abroad. Although some ideas have emanated from the UK and have been used here, others from around the world are worthy of much fuller exploitation in this country. For example, few composite steel-frame buildings had been built here before the beginning of the 1980s. Now most steel frames are designed as composites of structural steel and in-situ concrete, using technology originally imported from the USA.
Hybrid concrete construction is not a panacea for all situations but should be considered as one of the basic frame options for achieving speed and quality at minimum cost.
This publication aims to provide a source of inspiration, offering a multitude of ideas that can be adapted and improved upon in better buildings for the future.
DIRECT LINKS
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This book is not only a reference for researchers but also a basis for practising engineers. It can be used as a text book for graduate students, although it has the characteristics of a reference book. It addresses mainly the sewer hydraulician who has to tackle many a problem in daily life, and who will not always find an appropriate solution. Each chapter is introduced with a summary to outline the contents. To illustrate application of the theory, examples are presented to explain the computational procedures. Further, to relate present knowledge to the history of hydraulics, some key dates on noteworthy hydraulicians are quoted. A historical note on the development of wastewater hydraulics is also added. References are given at the end of each chapter, and they are often helpful starting points for further reading. Each notation is defined when introduced, and listed alphabetically at the end of each chapter.
Here are 560 pages of the 1-st edition of book (not the complete book!)
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Author: National Research Council (U.S.). Committee on Improving Risk Analysis Approaches | Size: 2.9 MB | Format:PDF | Publisher: The National Academies Press | Year: 2009 | pages: 423 | ISBN: 978-0-309-12047-0
Product Description
Risk assessment has become a dominant public policy tool for making choices, based on limited resources, to protect public health and the environment. It has been instrumental to the mission of the U.S. Environmental Protection Agency (EPA) as well as other federal agencies in evaluating public health concerns, informing regulatory and technological decisions, prioritizing research needs and funding, and in developing approaches for cost-benefit analyses. However, risk assessment is at a crossroads. Despite advances in the field, risk assessment faces a number of significant challenges including lengthy delays in completing complex risk assessments; lack of data leading to significant uncertainty in risk assessments; and many chemicals in the marketplace that have not been evaluated and emerging agents requiring assessment. Science and Decisions makes practical scientific and technical recommendations to address these challenges. This book is complement to the widely used 1983 National Academies book, Risk Assessment in the Federal Government (also known as the Red Book). The earlier book established a framework for the concepts and conduct of risk assessment that has been adopted by numerous expert committees, regulatory agencies, and public health institutions. The new book embeds these concepts within a broader framework for risk-based decision-making. Together, these are essential references for those working in the regulatory and public health fields. Committee on Improving Risk Analysis Approaches Used by the U.S. EPA National Research Council
Book Description
Risk assessment has become a dominant public policy tool for making choices, based on limited resources, to protect public health and the environment. It has been instrumental to the mission of the U.S. Environmental Protection Agency (EPA) as well as other federal agencies in evaluating public health concerns, informing regulatory and technological decisions, prioritizing research needs and funding, and in developing approaches for cost-benefit analysis.
However, risk assessment is at a crossroads. Despite advances in the field, risk assessment faces a number of significant challenges including lengthy delays in making complex decisions; lack of data leading to significant uncertainty in risk assessments; and many chemicals in the marketplace that have not been evaluated and emerging agents requiring assessment.
Science and Decisions makes practical scientific and technical recommendations to address these challenges. This book is a complement to the widely used 1983 National Academies book, Risk Assessment in he Federal Government (also known as the Red Book). The earlier book established a framework for the concepts and conduct of risk assessment that has been adopted by numerous expert committees, regulatory agencies, and public health institutions. The new book embeds these concepts within a broader framework for risk-based decision-making. Together, these are essential references for those working in the regulatory and public health fields.
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The book covers self-healing concepts for all important material classes and their applications: polymers, ceramics, non-metallic and metallic coatings, alloys, nanocomposites, concretes and cements, as well as ionomers.
Beginning with the inspiration from biological self-healing, its mimickry and conceptual transfer into approaches for the self-repair of artificially created materials, this book explains the strategies and mechanisms for the readers' basic understanding, then covers the different material classes and suitable self-healing concepts, giving examples for their application in practical situations.
As the first book in this swiftly growing research field, it is of great interest to readers from many scientific and engineering disciplines, such as physics and chemistry, civil, architectural, mechanical, electronics and aerospace engineering.
Contents:
General Introduction.
Definitions, Mechanisms and Application Areas.
Self-healing Polymers.
Self-healing in Non-metallic Coatings.
Self-healing in Metallic Coatings.
Self-healing in Nanocomposites.
Self-healing in Concretes and Cements.
Self-healing in Ionomers.
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