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Slim Floors with Built-in Beams. ECCS Publication 83.
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The European Convention for Constructional Steelwork - ECCS - brings together the trade association of the various national constructional steelwork industries. It represents, therefore, several thousands firms throughout Europe. Eurofer is the association of the european steel producers and, in particular, the
producers of hot rolled sections and plates, actively engaged in promoting the use of steel for buildings and civil engineering.
For several years ECCS and Eurofer have been working together to develop the use of steel frame construction throughout Europe, notably by publishing documents for designers.
This publication - one of the results of this partnership - is part two on integrated structural design for multi-storey buildings in steel. It should be read in addition to ECCS Publication 74 « Multi-storey buildings in steel: the Swedish method ».
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Metal Fatigue: Effects of Small Defects and Nonmetallic Inclusions
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Metal Fatigue: Effects of Small Defects and Nonmetallic Inclusions
Elsevier Science
2002
Englisch
Pages: 384
Yukitaka Murakami
ISBN 0080440649
PDF 10 Mb
This book is an English translation of the original Japanese, first published in 1993, but with two brand new chapters on fatigue failure of steels and the effect of surface roughness on fatigue strength. The first part of this book includes a concise explanation of metal fatigue. The methodology employed is based on important and reliable experimental results and may be usefully applied to other fatigue problems not directly treated in the book. The second half mainly addresses problems related to the influence of nonmetallic inclusions. This includes the introduction of an inclusion rating method based on the statistics of extremes, which will be useful not only for fatigue strength evaluation but also for making improvements in steel processing and material quality control.
Engineers and researchers involved in the study of metal fatigue should find this work useful for solving practical problems in industry and developing new laboratory
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Hard Drive Inspector Professional 3.28.build 241
Hard Drive Inspector is a powerful, effective and easy-to-use program that monitors hard drive health. The value of information stored on an average computer hard drive often exceeds the value of the computer itself. But a hard drive is one of the most unreliable internal computer devices. When it crashes (which happens quite frequently), the stored information will be lost fully or partially. Subsequent information recovery is either not possible at all, or constitutes a very sophisticated and expensive procedure that can be performed only by specialists.
Modern hard drives support S.M.A.R.T. (Self-Monitoring, Analysis, and Reporting Technology) that was specially developed to detect upcoming disk failures. Using this technology Hard DriveInspector can monitor the current state of various life-critical parameters describing a disk's reliability and performance. Hard Drive Inspector analyzes this data and warns the user if the parameters indicate a critical reduction of disk reliability. Timely alerts make it possible to copy the data and replace an unreliable disk, thus preventinginformation loss.
Homepage - http://www.altrixsoft.com screenshots: Download Links:
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we closed registration to do some important change in forum, & it isn`t open soon.
be careful to have right act on forum. if you ban you miss here ...
warn to all inactive member: :nono:
we planed to delete any inactive member from here, if you deleted you miss here ...
we don`t need costumer user only, we have more than 11000 registered user that only about 1200 of them have minimum 1 post & less than have enough activity.
we prefer to continue even with 10 user but all of them were active.
activity is not have large amount of posts we need useful posts.
here is a place for all engineer That share their knowledge free & we don`t have earned any money here even we must pay money to keep here alive.
if you want to be a customer & see here only for download new material you can go other site to do it. here is only for active members. :hand:
i thanks from all members & moderator that keep alive here
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Integrated Reservoir Studies
by Luca Cosentino
Collection Reperes. INSTITUT FRANCAIS DU PETROLE PUBLICATIONS
Editions Technip
2001
ISBN: 2710807971
328 pages
PDF 15 Mb
The goal of this book is to provide some answers to these questions, and to highlight the critical differences between an integrated reservoir study and traditional one.
Over the last decade, professionals in the various reservoir disciplines (geology, geophysics, petrophysics and reservoir engineering) have learned to work together and strive for synergy. They have created multidisciplinary teams and organized common working environments where compile integrated databases, design interoperable applications, and share earth models. This process of integration generates extra value. When applied to reservoir studies, the integration process can help foster more effective, less expensive projects.
What, however, does integration really mean, under everyday working conditions ?
Which new technical and professional challenges must be faced ?
What kind of changes does it imply for traditional ways of working ?
What is the role of the project leader in the integration process ?
Edit Del
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Horizontal and Vertical Drilling
by Byron Davenport
Mcgraw-Hill
1992
ISBN: 0070154910
336 pages
PDF 34 Mb
This book's purpose is to describe the technical as well as nontechnical efforts of drilling vertical and horizontal wells, so that engineers, consultants, salespersons, roughnecks, and the general public may read and understand what actually happens in the field.
This book is designed to give engineers an insight into the reality of rig operations and at the same time to give roughnecks, drillers, and toolpushers a better understanding of how engineers think.
This book is presented simply as a guide and reference manual to solve some major problems encountered while drilling oil or gas wells.
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A simple excel spreadsheet for the calculation of reinforcement needed taking account for torsion moments
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PEER-2001/16, Pacific Earthquake Engineering Research Center, University of California, Berkeley, 2001-12, 58 pages (400/P33/2001-16)
This report investigates the basic premise that the roof displacement of a multistory building can be determined from the deformation of a SDF system. For this purpose, the response of both systems is determined rigorously by nonlinear response history analysis, without introducing any of the approximations underlying the simplified methods for estimating the deformation of a SDF system (see, e.g., FEMA-273 or ATC-40 guidelines). The statistics of the SDF-system estimate of roof displacement are presented for a variety of building frames and six SAC buildings subjected to ground motion ensembles. Two sets of structural systems and ground motions are considered. The first set is generic one-bay frames of six different heights: 3, 6, 9, 12, 15, and 18 stories designed for ductility factor mu = 1, 1.5, 2, 4, and 6 subjected to 20 large-magnitude, small-distance records. The second set is six "SAC" buildings--9- and 20-story model buildings designed according to Los Angeles, Seattle, and Boston codes--subjected to 20 ground motion records representing 2% probability of exceedance in 50 years. The statistics of two roof-displacement, mu subscript r, ratios are presented. The data presented include histograms of the 20 values, range of values, median value, and dispersion measure. These data for generic frames indicate that the first-"mode" SDF system overestimates the median roof displacement for systems subjected to large ductility demand mu, but underestimates for small mu. Similar data for SAC buildings demonstrate that the bias and dispersion in the SDF estimate of roof displacement increases when P-delta effects (due to gravity loads) are included. The SDF estimate of roof displacement due to individual ground motions can be alarmingly small (as low as 0.312 to 0.817 of the "exact" value for the six SAC buildings) or surprisingly large (as large as 1.45 to 2.15 of the exact value for Seattle and Los Angeles buildings), especially when P-delta effects are included. The situation is worse than indicated by these data because they do not include several cases where the first-"mode" SDF system collapsed but the building as a whole did not. This large discrepancy arises because for individual ground motions the SDF system may underestimate or overestimate the yielding-induced permanent drift in the "exact" response determined by nonlinear RHA. While this discrepancy is not improved significantly by including higher "mode" contributions, the MPA procedure has the advantage of reducing the dispersion in the roof displacement and the underestimation of the median roof displacement for elastic or nearly elastic cases at the expense of increasing slightly the overestimate of roof displacement of buildings responding far into the inelastic range.
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