Anisotropic Elastic Plates find wide applications as structural elements in modern technology. The plates are considered to be subjected to not only inplane loads but also transverse loads. Plane problems, plate bending problems as well as stretching-bending coupling problems are all treated in this book. In addition to the introduction of the theory of anisotropic elasticity that includes two complex variable methods - Lekhnitiskii formalism and Stroh formalism- several important subjects are also discussed such as wedges, interfaces, cracks, holes, inclusions, contact problems, piezoelectric materials, thermal stresses and boundary element analysis.
Anisotropic Elastic Plates also collects over one hundred problems and solutions. This book is a useful resource for engineers and researchers in composite materials.
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Posted by: michenerpark - 01-04-2011, 03:19 AM - Forum: Archive
- No Replies
Anyone can downlaod this for me
Finite Element Modeling of Wrap-Around Gusset Plates in Tension by Bo Dowswell, Robert Whyte, Jim Davidson, and Fouad Fouad
Document type: Conference Proceeding Paper
Part of: 2006 Structural Engineering and Public Safety
Abstract: Gusset plates are used in steel buildings to connect bracing members to other structural members in the lateral force resisting system. Horizontal bracing is commonly used to resist lateral loads in industrial structures and in commercial buildings where floor and roof diaphragms cannot carry the loads. Wrap-around gusset plates are L-shaped plates that are used where an opening is required at the comer of the plate. This typically occurs at horizontal bracing where the gusset plate is cut out around a column. Finite element models were used to determine the behavior of wrap-around gusset plates. The plates were modeled using material and geometric nonlinearities. Five different gusset plates were modeled with geometry and material properties matching the experimental specimens of Dowswell. All of the models were loaded in tension. The loads from the finite element models were compared to the experimental loads.
Dear All
this book has been protected - you cann't edit , print , or copy this decuments
but it has V. good informations about precast , prestressed concrete bridges
so , I shared it , maybe any one can edit it to printable PDF
REGARDS
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This application-oriented book introduces the associations between contact mechanics and friction and with it offers a deeper understanding of tribology. It deals with the associated phenomena of contact, adhesion, capillary forces, friction, lubrication, and wear from one consistent viewpoint. The author goes into (1) methods of rough estimation of tribological quantities, (2) methods for analytical calculations which attempt to minimize the necessary complexity, (3) the crossover into numerical simulation methods. With these methods the author conveys a consistent view of tribological processes in various scales of magnitude (from nanotribology to earthquake research).
Also, system dynamic aspects of tribological systems, such as squeal and its supion as well as other types of instabilities and spatial patterns are investigated.
This book contains problems and worked solutions for individual chapters in which the reader can apply the theory to practical situations and deepen the understanding of the material.
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This Standard is applicable to the execution, testing and monitoring of jet grouting works. Design considerations, strictly related to jet grouting works only, are given in clause 7. More general requirements that could be included in, or substituted by clauses of future editions of Eurocode 7 are listed in Annex A. NOTE The jet grouting processes should be distinguished from the grouting processes covered by EN 12715.
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This standard is applicable to the execution, testing and monitoring of geotechnical grouting work. Specific aspects concerning design are provided since ENV 1997-4 has been abandoned. Grouting for geotechnical purposes (geotechnical grouting) is a process in which the remote placement of a pumpable material in the ground is indirectly controlled by adjusting its rheological characteristics and by the manipulation of the placement parameters (pressure, volume and the flow rate). The following principles and methods of geotechnical grouting are covered by this standard : - displacement grouting (compaction grouting, hydraulic fracturing) ; - grouting without displacement of the host material (permeation, fissure grouting, bulk filling). Specialised grouting activities, generally associated with structural and/or emergency works, are not covered by this standard.
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are installed in the ground without excavation or removal of material from the ground except for limiting heave, vibration, removal of obstructions or to assist penetration.
Piles are driven into the ground using impact, vibration, pressing, screwing or a combination of these methods. 1.2 The material of displacement piles covered by this standard can be :
¾ steel ;
¾ cast iron ;
¾ concrete, mortar ;
¾ timber ;
¾ grout ;
¾ combination of above.
1.3 This standard covers prefabricated, cast in place, or a combination of these methods to form displacement
piles of regular shape.
Examples are given in Figures A.2 and A.3 in annex A.
1.4 This standard is limited to piles with a diameter or maximum cross sectional dimension greater than 150 mm.
1.5 Other than practical considerations there are for the purpose of this Standard no limitations regarding shaft
or base enlargements, length or rake.
1.6 The provisions of the standard apply to :
¾ single piles ;
¾ pile groups ;
¾ walls formed by concrete sheet piles.
1.7 Columns constructed by ground improvement techniques (such as mixed in place columns, jet grouting,
compaction grouting, vibro flotation, stone columns are not covered by this standard. Bored piles are covered in EN
1536. Steel and timber sheet piles walls are covered in EN 12063. Micropiles are covered in (WI 00288010)1).
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UIC Report 713 R, Design of monoblock concrete sleepers, 1st edition, November 2004
ISBN: 2-7461-0880-1 (English version)
Pages: 30
Summary
This document gives the requirements for design of prestressed monoblock concrete sleepers. The primary application is for main-line, standard-gauge (1 435 mm) railways with speeds of up to 300 km/h or axle loads up to 300 kN, but the principles may be valid for other applications. A "standard" design may be considered to be suitable for freight trains of up to 250 kN axle load with 120 km/h maximum speed and passenger trains of up to 180 kN axle load with 300 km/h maximum speed.
This document is intended to support but not replace European Standards on this subject, in particular:
- EN 13230 - Concrete sleepers and bearers (May 2002),
- EN 13146 - Fastening systems (May 2002).
This document represents a State of the Art, at the date of publication, as determined by a UIC expert group and should not be a barrier to further development.
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