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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Table of Contents, Index, and Glossary are not included in this ebook. To view the missing pages, search by book title here:
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Frequency-Domain Approach for Calculating
Wind-Induced Vibration and Aeroelastic Stability Characteristics
of Long-Span Bridges
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Risto Kiviluoma: Frequency-Domain Approach for Calculating Wind-Induced Vibration and Aeroelastic Stability Characteristics of Long-Span Bridges
Doctoral dissertation at Helsinki University of Technology
The frequency-domain approach is applied to the aerodynamic and aeroelastic analysis of long-span bridges. Numerical models are deduced for the simultaneous buffeting and flutter analysis and for the vortex and signature turbulence induced response calculation.
The goal, considered to be achieved, is to develop numerical models capable to reliable parametric studies of detailed three-dimensional structural models of bridges. For the models, semi-empirical approach based on aerodynamic data obtained through section model tests in a wind tunnel, is employed. The data consists of the steady aerodynamic coefficients and flutter derivatives of a deck
segment to be used in the buffeting and flutter analysis. A complemental data is suggested to be extracted for the
vortex and signature turbulence induced response calculation.
The simultaneous analysis model for buffeting and flutter uses theoretically complete coupled-mode approach in which most of the unintentional simplifications of earlier models are removed. It has merits for the non-iterative calculation of flutter characteristics and feasibility to efficient computer implementation. The vortex-induced response calculation is based on the band-limited white-noise excitation model while the signature-turbulence model employs approach typical in simplified buffeting analysis of bridge girders. The
vortex-induced vibration calculation model facilitates imperfect spanwise correlation and turbulence reduction effects through mutually simple mathematical formulation. To obtain aerodynamic input parameters for the verification study, wind tunnel tests for the spring supported section model are carried out in a smooth flow. The Instrumental variable method is formulated for acceleration signals and used on evaluating flutter derivatives through coupled-motion experiments. To verify the numerical models, the calculated responses of the Raippaluoto and Kärkinen Bridges, two cable-stayed bridges in Finland involving double I-girder steel-concrete composite deck, are compared with the on-site measurements. Here, the responses and the wind turbulence data are measured on three occasions during storm and strong winds in 1999-2000.
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PMP Project Management Professional Study Guide (Certification Press)
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PMP Project Management Professional Study Guide (Certification Press)
Publisher: McGraw-Hill Osborne Media | ISBN: 0072230622 | edition 2003 | CHM | 588 pages | 11,05 mb
Get the book that shows you not only what to study, but how to study. The only classroom-based integrated study system for professional certification gives you complete coverage of all objectives for the PMP exam, hundreds of practice exam questions, and hands-on exercises.
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NIED has been constructing 3-D Full-Scale Earthquake Testing Facility, nicknamed "E-Defense" in the city of Miki, to the north of Kobe. Construction of this facility began in 1999 and will be completed in 2005. Therefore, this facility will begin to make its contribution ten years after the Hyogoken Nanbu (Kobe)Earthquake.
The world's largest shaking table, which can simulate high level ground motions, is taking shape in Japan. The opportunities and challenges provided through this facility are great. It will be a focus of full-scale testing of structures due to high-intensity earthquakes. It is a vehicle through which hope and optimism for improving the behavior of urban regions due to earthquakes will get an added boost.
Collection of videos of shaking table tests of a number of structures:
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The 4-story steel structure listed there was subject to a very interesting performance based engineering study by Deierlein et al, and the results just appeared in the latest issue of EERI´s Earthquake Spectra:
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Imperial College Press
Clifford F Bonnett
1-86094-515-5
Pages : 213
File Size :8.08 MB
In the new millennium, the transport of people and materials has an even greater significance world-wide than it had in the immediate past. The birth and evolution of railways during the last two centuries has had an normous influence on industrial,social and economic development.
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Energy efficiency of power plant, Reactor design and other perspectives, Accidents and losses, Feasibility study
79 pages
published this 06/25/2009
Acknowledgement: Engr. M. Ali Zulquarnain Director, ROMU, AERE, BAEC MA Islam, Dept of MECHE, BUET
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Errata for AWS A2,4-98 Standard symbols for welding, brazing, and nondestructive examination.
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This revision of AS 1170 part 4 - 2007 for those who are interested in updated Aussie design code in seismic design.
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