Hey
I'm wondering if anyone have access to Wiley.com library ?!
I need this paper:
On normal flow boundary conditions in finite element codes for two-dimensional shallow water flow
by
William G. Gray
Article first published online: 27 JUN 2005
DOI: 10.1002/fld.1650040107
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Your posting privilege was suspended until you can show me/moderators that you can post the right code protected links (by posting on my profile comments or e-mail to me).
Effects of Formwork Surface Materials on Concrete Lateral Pressure (2004, 7 pages)
Metin Arslan, Osman Simsek, Serkan Subasi
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The Guidelines are intended to be read in conjunction with NZS 3101:2006, the Concrete Structures Standard and apply to any building with hollow-core floors, whether new or existing. They apply whether or not the building is earthquake-prone or subject to alteration or change of use. The underlying theme of the guidelines is for the structural performance of the hollow-core floor system to comply with the Building Code requirements under full earthquake loading – whether or not this is achieved in a particular case. The Guidelines address the following issues:
• Structure type and implications: Earthquake performance of hollow-core floors is critically dependent on the displacement the structure experiences and the forces that are induced. For example, ductile frame structures will have higher inter-storey displacements than shear wall structures. In addition, supporting beams may be subject to beam elongation due to plastic hinge formation. However, even in shear wall structures, deformations of the structure can lead to excessive strains on the floor units and/or topping.
• Range of floor systems (floor units plus supporting structure): There is a variety of configurations used. Floor unit depth and span varies. Units may span past intermediate columns. They may be supported on walls or beams. Each configuration may have different implications for the structural performance overall.
• Seating details / performance: Seating details in buildings constructed over the last 30 years vary considerably – from those with generous overlap of unit with the support to those with “negative” overlap that rely on reinforcement in the cores of the units. The behaviour of the floor overall is critically dependent on the detailing of the seating details and associated reinforcement.
• Reinforcement details / performance: Reinforcement is needed for diaphragm action and for bending action in the units. The nature of hollow-core floor units is such that the placement and quantity of reinforcement has a critical influence on overall floor performance. More reinforcement does not necessarily give better performance due to the brittle nature of some failure mechanisms.
Structural Engineering Society of New Zealand
New Zealand Society for Earthquake Engineering
New Zealand Concrete Society
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a few pages booklet about the pressures of liquid concrete over the formwork (aci/din)
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as an engineering forum, i think that the addition of an equation editor (if the forum platform supports it), it would be very useful.
e.g. equations like this: sqrt(x^2+y^2) etc, is a little be tired for somebody to read them and sometimes since you read them and understand them, you have forgotten what was the thread all about
D. Benedetti, G. M. Benzoni.: A numerical model for seismic analysis of masonry buildings: Experimental correlations.
Earthquake Engineering & Structural Dynamics. Volume 12, Issue 6, pages 817–831, 1984.
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This handbook is the latest of many publications, since the 1920s, from ARC. It has the continuing objective of providing engineering details and properties of reinforcement available throughout Australia, together with an interpretation of the requirements of Australian Standards within the context of practical solutions. The information is considered to be of value to all who work in the structural design and construction industry – in a design office, on a construction site or a student preparing to enter the industry. There is considerable emphasis on the requirements of many Australian
Standards. Standards are changing continuously to ensure that the latest practices are included. It is hoped that this publication will retain its relevance for several years, given that the major standards for reinforcing steel and reinforced concrete design have been recently released.
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I'm looking for this article. Thanks for your interest.
Somerville, P. G., Smith, N. F., Graves, R. W., and Abrahamson, N. A., 1997, "Modification of Empirical Strong Ground Motion Attenuation Relations to Include the Amplitude and Duration Effects of Rupture Directivity." Seismological Research Letters, Vol. 68, No.1, pp.199-222