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Author: Paul W. McMullin | Size: 2.27 MB | Format:PDF | Quality:Unspecified | Publisher: Paul W. McMullin | Year: 2009 | pages: 35
Presentation on Seismic Considerations of Structures
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Author: Paul W. McMullin | Size: 4.46 MB | Format:PDF | Quality:Unspecified | Publisher: Paul W. McMullin | Year: 2008 | pages: 27
Presentation on Seismic Retrofitting of Buildings
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Experimental and numerical studies were carried out to investigate the punching shear
strength of post-tensioned concrete flat slab-interior column connections under the effects
of gravity loads and lateral displacements induced by earthquakes. Seven full-size posttensioned
slab-interior column connections were tested under gravity loads combined
with cyclic displacement reversals of increasing amplitude up to failure. The ratio of
prestressed to non-prestressed reinforcement was varied, while the flexural strength was
constant. The slabs were reinforced with headed studs, a type of shear reinforcement that
had been developed at the University of Calgary. The objective of this experimental
program was to verify the applicability of the seismic provisions of the North American
codes as well as other seismic design procedures, proposed earlier, when used for
prestressed slabs.
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Two issues have been investigated regarding the prestressed concrete through-girder
pedestrian bridge system. The first issue was related with the ductility of prestressed
concrete girders used in these types of bridges. The girders are reinforced with large
amounts of prestressing strands in order to satisfy the deflection requirements with the
relatively large span lengths (125-135 ft.). Moreover, the girders do not have a composite
deck on top that would help to resist the relatively large internal tensile force caused by
the prestressing strands. As a result, the section used in these bridges (Mn/DOT Type 63
section) is considered as over-reinforced according to the AASHTO LRFD Bridge
Specifications and fails to meet the required flexural strength.
A nonlinear strain compatibility analysis of the Mn/DOT Type 63 section was performed
in order to identify the design procedures that accurately predict the section behavior.
Response of the section, including the neutral axis location, strand stress at ultimate
capacity, and the moment capacity of the section, predicted by the AASHTO Standard
and AASHTO LRFD Specifications was compared with the sectional response
determined from the strain compatibility analyses. Based on the analysis results,
modifications were proposed to the procedure used by the LRFD Specifications in order
to rectify the errors in predicting the sectional response.
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Author: Andrew R. Williams | Size: 3.75 MB | Format:PDF | Quality:Unspecified | Publisher: Spons Press | Year: 1990 | pages: 272 | ISBN: 9780203988732
This is a practical guide showing how to undertake a domestic building survey. The text describes the practical aspects of surveying with a full description of the author's own experience, at the same time drawing out the important principles involved.
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This is the most accessible architectural theory book that exists. Korydon Smith presents each common architectural subject – such as tectonics, use, and site – as though it were a conversation across history between theorists by providing you with the original text, a reflective text, and a philosophical text. He also introduces each chapter by highlighting key ideas and asking you a set of reflective questions so that you can hone your own theory, which is essential to both your success in the studio and your adaptability in the profession. These primary source texts, which are central to your understanding of the discipline, were written by such architects as Le Corbusier, Robert Venturi, and Adrian Forty. The appendices also have guides to aid your reading comprehension; to help you write descriptively, analytically, and disputationally; and to show you citation styles and how to do library-based research. More than any other architectural theory book about the great thinkers, Introducing Architectural Theory teaches you to think as well.
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I have a little suggestion : personally i think that subforum with threads moveing hardware problems and/or questions will be a good choice, or maybe a section called buy/sell ?
What do You think ?
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Private Note:
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