B. Szabo: Influence of Shear Connectors on the Elastic Behaviour of Composite Girders
Doctoral dissertation at Helsinki University of Technology
The effect of deformable and rigid connectors and influence of connection parameters on the behaviour of composite girders is examined. Both the elastic and plastic behaviour are discussed, but the former one is the main concern. Deformable connectors cause slip in the joint, which results in redistribution of internal forces and changes in the deformed shape of the beam compared to the connection with rigid connectors.
The aim of this study is to complement the analytical methods and develop numerical models – based on the author's experimental research – capable to provide reliable parametric studies of three-dimensional structural models of composite girders with deformable and rigid connectors.
At first, the partial interaction problem, behaviour of composite girders in the case of various loading types, recent development and real behaviour of connections of composite girders is discussed in the introduction. It is followed by a detailed literature survey serving the purpose of this study. This survey comprises two main parts: analytical and numerical models of composite girders. Among the analytical models, statical and energy methods are considered. The author also developed a new kind of energy method based on variational calculation for determination of shear force distribution of shear connectors of composite girders. The new method is in compliance with the experimental and the latest theoretical investigations. Next, experimental study on steel-concrete and wood-plywood composite girders conducted by the author at the Budapest University of Technology and Economics and Helsinki University of Technology respectively, are presented as well.
Experimental studies are followed by parametric studies based on analytical and finite element analyses in order to examine how changes in the connector stiffness affect the behaviour of composite girders. Based on these parametric studies, new design formulas are developed for design practice. The main results obtained by the author are: development of energy method based on the variation calculation, elaboration of a parametric study for determining the elastic shear force for all cross-sections and spans, use of photoelastic method to verify shear stresses near to the beam end, simulation of temperature effect, and development of a FEM model providing results that show good compliance with experimental results.
Keywords: steel-concrete and wood-concrete composite girders, bridge, shear connection, flexible connectors, finite element method, parametric study
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Philip Jodidio, "Architecture in the Netherlands"
Taschen | March 1, 2006 | ISBN: 382283971X | PDF | 80 Mb | 192 pages
TASCHEN’s new architecture series brings a unique perspective to world architecture, highlighting architectural trends by country. Each book features 15 to 20 architects—from the firmly established to the up-and-coming—with the focus on how they have contributed to very recent architecture in the chosen nation. Entries include contact information and short biographies in addition to copiously illustrated descriptions of the architects’ or firms’ most significant recent projects. Crossing the globe from country to country, this new series celebrates the richly hued architectural personality of each nation featured.
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TASCHEN’s new architecture series brings a unique perspective to world architecture, highlighting architectural trends by country. Each book features 15 to 20 architects—from the firmly established to the up-and-coming—with the focus on how they have contributed to very recent architecture in the chosen nation. Entries include contact information and short biographies in addition to copiously illustrated descriptions of the architects’ or firms’ most significant recent projects. Crossing the globe from country to country, this new series celebrates the richly hued architectural personality of each nation featured.
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Taschen | October 1, 2006 | ISBN: 3822852570 | PDF | 118 Mb | 192 pages
TASCHEN's new architecture series brings a unique perspective to world architecture, highlighting architectural trends by country. Each book features 15 to 20 architects—from the firmly established to the up-and-coming—with the focus on how they have contributed to very recent architecture in the chosen nation. Entries include contact information and short biographies in addition to copiously illustrated descriptions of the architects' or firms' most significant recent projects. Crossing the globe from country to country, this new series celebrates the richly hued architectural personality of each nation featured.
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Units of Measurement: Past, Present and Future. International System of Units
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Units of Measurement: Past, Present and Future. International System of Units
Publisher: Springer
Pages: 158
2009-12-01
ISBN 3642007376
PDF 1.8 MB
It is for the first time that the subject of quantities and their respective units is dealt this much in detail, a glimpse of units of measurements of base quantities of length, time, mass and volume is given for ancient India, three and four dimensional systems of measurement units are critically examined, establishment of the fact that only four base units are needed to describe a system of units, the basics to arrive at the unit of a derived quantity are explained, basic, derived and dimensionless quantities including quantity calculus are introduced, life history of scientists concerned with measurements units are presented to be inspiring to working metrologists and students. The International System of Units including, Metre Convention Treaty and its various organs including International National of Weights and Measure are described. The realisation of base units is given in detail. Classes of derived units within the SI, units permitted for time to come, units outside SI but used in special fields of measurements are described. Methods to express large numbers are explained in detail. Multiples and sub-multiples prefixes and their proper use are also given. The latest trends to redefine the base Kilogram, Ampere, Kelvin and Mole on existing base units of mass, electric current, temperature and amount of substance, in terms of a single parameter or fundamental constants are briefly described.
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Practical Matlab Applications for Engineers
Publisher: CRC
Pages: 704
2008-09-04
ISBN: 1420047760
PDF 7 MB
Practical Matlab Applications for Engineers provides a tutorial for those with a basic understanding of Matlab®. It can be used to follow Misza Kalechman’s, Practical Matlab Basics for Engineers (cat no. 47744). This volume explores the concepts and Matlab tools used in the solution of advanced course work for engineering and technology students. It covers the material encountered in the typical engineering and technology programs at most colleges. It illustrates the direct connection between theory and real applications. Each chapter reviews basic concepts and then explores those concepts with a number of worked out examples.
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Practical Matlab Basics for Engineers
Publisher: CRC
Pages: 712
2008-09-04
ISBN: 1420047744
PDF 10 MB
A comprehensive and accessible primer, this tutorial immerses engineers and engineering students in the essential technical skills that will allow them to put Matlab® to immediate use. The book covers concepts such as: functions, algebra, geometry, arrays, vectors, matrices, trigonometry, graphs, pre-calculus and calculus. It then delves into the Matlab language, covering syntax rules, notation, operations, computational programming, and general problem solving in the areas of applied mathematics and general physics. This knowledge can be used to explore the basic applications that are detailed in Misza Kalechman’s companion volume, Practical Matlab Applications for Engineers (cat no. 47760). .
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Fluid Physics in Geology. An Introduction to Fluid Motions
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Fluid Physics in Geology. An Introduction to Fluid Motions
on Earth's Surface and within Its Crus
by David Jon Furbish
Oxford University Press
1996
ISBN: 0195077016
498 pages
PDF 25 Mb
The book is aimed at those interested in understanding fluid behavior and motion in the context of a wide variety of geological problems. Helpful example problems following each chapter illustrate applications of the material to realistic problems involving groundwater flows, magma dynamics, open-channel flows, and thermal convection.
Fluid Physics in Geology provides an introductory treatment of the physical and dynamical behavior of fluids, considering first how fluids behave in a general way, then looking more specifically at how they are involved in certain geological processes.
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Geological and Soil Evidence. Forensic Applications
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Geological and Soil Evidence. Forensic Applications
by Kenneth Pye
CRC
2007
ISBN: 0849331463
362 pages
PDF 9 Mb
This book provides an authoritative introduction to the nature and properties of geological and soil materials that may be used as trace evidence and the techniques used to analyze and evaluate them. It emphasizes the use of geoscience in forensic analyses, including geophysical, meteorological, and geomorphological data.
This inclusive book covers material types and analytical strategies used in examining both the common components of geological evidence, such as rocks, dusts, minerals, spores, and microfossils, as well as anthropogenic particles like pottery and brick.
It instructs on particle characterization based on physical, chemical, and mineralogical traits such as color, shape, density, and elemental and isotopic composition. It also explains sampling and handling procedures particular to criminalistics and introduces analysis, evaluation, and decision-making practices based on statistical significance and the weighing of different types of evidence.
The forensic potential of geological and soil evidence has been recognized for more than a century, but recently these types of evidence are used much more widely as an investigative intelligence tool and as evidence in court. There is, however, still a poor understanding of the potential value and the limitations of geological and soil evidence among the forensic science and wider legal communities.
Discussions of basic principles are supported and enhanced with numerous case studies that tie methods of analysis to specific forensic applications. Examples are drawn from the author's own experience as well as the wider scientific literature. Accessible enough for readers with limited scientific knowledge and informative enough for scientists interested in forensic applications, Geological and Soil Evidence: Forensic Applications is a comprehensive reference for the current knowledge of forensic geology and soil science.
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Horizontal Directional Drilling: Utility and Pipeline Applications
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Horizontal Directional Drilling: Utility and Pipeline Applications
by David Willoughby
Civil Engineering, 1st editon
McGraw-Hill
2005
ISBN: 007145473X
265 pages
PDF 9 Mb
This is a complete sourcebook of information on Horizontal Directional Drilling, the installation of pipelines and utilities beneath obstacles such as water and roadways.
Provides technical information on the design, permitting, construction, bid documents, specifications, and construction of HDD applications Numerous HDD calculations with examples
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