Investigation of the Kansas City Hyatt Regency Walkways Collapse
Author: R.D. Marshall, E.O. Pfrang, E.V. Leyendecker, K.A. Woodward | Size: 55.1 MB | Format:PDF | Quality:Scanner | Publisher: National Bureau of Standards, Building Science Series 143 | Year: May 1982 | pages: 377 | ISBN: -
An investigation into the collapse of two suspended walkways within the atrium area of the Hyatt Regency Hotel in Kansas City, Mo., is presented in this report. The investigation included on-site inspections, laboratory tests and analytical studies.
Three suspended walkways spanned the atrium at the second, third, and fourth floor levels. The second floor walkway was suspended from the fourth floor walkway which was directly above it. In turn, this fourth floor walkway was suspended from the atrium roof framing by a set of six hanger rods. The third floor walkway was offset from the other two and was independently suspended from the roof framing by another set of hanger rods. In the collapse, the second and fourth floor walkways fell to the atrium floor, with the fourth floor walkway coming to rest on top of the lower walkway.
Based on the results of this investigation, it is concluded that the most probable cause of failure was insufficient load capacity of the box beam-hanger rod connections. Observed distortions of structural components strongly suggest that the failure of the walkway system initiated in the box beam-hanger rod connection on the east end of the fourth floor walkway's middle box beam.
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Size: 2.32 MB | Format:PDF | Quality:Original preprint | Publisher: New York State Department of Construction | Year: April 2007 | pages: 30
The specifications, plans, and standard sheets state the requirements of embankment construction in precise terms. This guide is intended to describe less technically and hopefully, more understandably; how to construct an embankment. The guide discusses,
Embankment Foundation
Embankment
Compaction Control
Moisture โ Density โ Strength Relationship
Proof Rolling
Embankment Failure
Winter Earthwork
Reference is made throughout the guide to the Standard Specifications, standard sheets, plans, proposals and various procedure manuals. It is intended that the guide will stimulate the reader to study these sources
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Theory of Arched Structures: Strength, Stability, Vibration presents detailed procedures for analytical analysis of the strength, stability, and vibration of arched structures of different types, using exact analytical methods of classical structural analysis. The material discussed is divided into four parts. Part I covers stress and strain with a particular emphasis on analysis; Part II discusses stability and gives an in-depth analysis of elastic stability of arches and the role that matrix methods play in the stability of the arches; Part III presents a comprehensive tutorial on dynamics and free vibration of arches, and forced vibration of arches; and Part IV offers a section on special topics which contains a unique discussion of plastic analysis of arches and the optimal design of arches.
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Dear All,
Please kindly share this article with us if you can. The article details are as follows:
Title:Reliability-Based Optimization of Design Code for Tension Piles
Author:Knut O. Ronold
Journal:Journal of Geotechnical & Geoenvironmental Engineering
Volume: 125
Issue: 8
page: 690-696
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Thank you in advance for your help.
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So now, When I want to create a new thread and using our default password, I have to type or copy our default password to appropriate box. I think we can simple this task by adding button to the password box in our Post Generator Machine. When we hit that button, password textbox automatically fill with
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THis is simple, but it is useful to save time when create a new thread
Piled foundations are generally designed using empirical methods, in particular the traditional capacity based approach on which the majority of codes of practice are based. However in recent years the analysis of pile groups and piled rafts has undergone substantial development in the light of new research and the mechanisms for the interactions between piles, soil and rafts or caps have been largely clarified. Paradoxically, with relatively large piled rafts it has been found that a design based on the criterion of serviceability, with the limitation of absolute and/or differential settlement, not only allows a more rational and economical design, but is also simpler and more reliable than one based on the traditional approach.
This book provides an overview of present design practice of piled foundations, under both vertical and horizontal loads, and then a presentation of recent advances in the analysis and design of piled rafts. Altogether it forms a thorough guide to the design and analysis of efficient and effective piled rafts, and it also serves as a useful design handbook for traditional pile foundations.
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This book will interest researchers, scientists, engineers and graduate students in many disciplines, who make use of mathematical modeling and computer simulation. Although it represents only a small sample of the research activity on numerical simulations, the book will certainly serve as a valuable tool for researchers interested in getting involved in this multidisciplinary รฏยฌยeld. It will be useful to encourage further experimental and theoretical researches in the above mentioned areas of numerical simulation.
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Dear all,
I need those papers :
a comparison of duration magnitude to local magnitude for seismic events recorded in northern Arizona,
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and
Calibration of magnitude scales for earthquakes of the Mediterranean
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Author: W. B. V. Kandasamy, F. Smarandache | Size: 2.03 MB | Format:PDF | Quality:Unspecified | Publisher: InfoLearnQuest | Year: 2008 | pages: 121 | ISBN: 159973074X
n-Linear Algebra of type I introduced in this book finds applications in Markov chains and Leontief economic models. Innovative scientists and engineers can adopt this concept in Fuzzy Finite Element analysis of mechanical structures with uncertain parameters.
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