Posted by: ir_71 - 10-27-2010, 07:49 AM - Forum: EN
- Replies (3)
EN 12843:2004 Precast concrete products - Masts and poles
This Standard specifies requirements for precast concrete poles (also commonly called masts) (either all of a piece or composed of elements), reinforced and/or prestressed as structural elements; they may be hollow or solid and may receive or include additional components (e.g. cross-arms, platforms etc.), inserts and connectors. Additional elements may be connected to pole elements.
Structures made from such elements in mono- or multi-legged form may be used for :
- overhead electrical lines ;
- telecommunication lines ;
- overhead electrical lines for railways, trams and similar ;
- supports for lighting ;
- supports for loudspeaker installation ;
- antenna and telecommunication poles ;
- supports for wind turbines ;
- and similar installations.
This Standard does not cover lighting columns for use in traffic circulation areas.
:JC_cheers:
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Understanding the Complexities of Designing Diaphragms in Buildings for Earthquakes
Author: Des K. Bull
This is small document, but very interesting to understand the behavior of diaphragmas in buildings for Earthquakes.
I hope that it they is useful...
Best regards
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The newly expanded and revised edition of Fiber-Reinforced Composites: Materials, Manufacturing, and Design presents the most up-to-date resource available on state-of-the-art composite materials. This book is unique in that it not only offers a current analysis of mechanics and properties, but also examines the latest advances in test methods, applications, manufacturing processes, and design aspects involving composites.
This third edition presents thorough coverage of newly developed materials including nanocomposites. It also adds more emphasis on underlying theories, practical methods, and problem-solving skills employed in real-world applications of composite materials. Each chapter contains new examples drawn from diverse applications and additional problems to reinforce the practical relevance of key concepts.
New in The Third Edition:
Contains new sections on material substitution, cost analysis, nano- and natural fibers, fiber architecture, and carbon-carbon composites
Provides a new chapter on polymer-based nanocomposites
Adds new sections on test methods such as fiber bundle tests and interlaminar fracture measurements
Expands sections on manufacturing fundamentals, thermoplastics matrix composites, and resin transfer molding
Maintaining the trademark quality of its well-respected and authoritative predecessors, Fiber-Reinforced Composites: Materials, Manufacturing, and Design, Third Edition continues to provide a unique interdisciplinary perspective and a logical approach to understanding the latest developments in the field.
Contents:
- Introduction
- Definition
- General Characteristics
- Applications
- Material Selection
- Materials
- Fibers
- Matrix
- Thermoset Matrix
- Thermoplastic Matrix
- Fiber Surface Treatments
- Fillers and Other Additives
- Incorporation of Fibers into Matrix
- Fiber Content, Density and Void Content
- Mechanics
- Fiber-Matrix Interaction in a Unidirectional Lamina
- Characteristics of a Fiber-Reinforced Lamina
- Laminated Structure
- Interlaminar Stresses
- Performance
- Static Mechanical Properties
- Fatigue Properties
- Impact Properties
- Other Properties
- Environmental Effects
- Long-Term Properties
- Fracture Behavior and Damage Tolerance
- Manufacturing
- Fundamentals
- Bag Molding Process
- Compression Molding
- Pultrusion
- Filament Winding
- Resin Transfer Molding
- Other Manufacturing Processes
- Manufacturing Processes for Thermoplastic Matrix Composites
- Quality Inspection Methods
- Design
- Failure Predictions
- Laminate Design Considerations
- Joint Design
- Design Examples
- Applications Examples
- Metal and Ceramic Matrix Composites
- Metal Matrix Composites
- Ceramic Matrix Composites
- Carbon-Carbon Composites
- Nanocomposites
- Nanoclay
- Carbon Nanofiber
- Carbon Nanotubes
- Appendices
- Woven Fabric Terminology
- Residual Stresses in Fibers and Matrix in a Lamina Due to Cooling
- Alternative Equations for the Elastic and Thermal Properties of a Lamina
- Halpin-Tsai Equations
- Typical Mechanical Properties of Unidirectional Continuous Fiber Composites
- Properties of Various SMC Composites
- Typical Mechanical Properties of Metal Matrix Composites
- Determination of Design Allowables
- Useful references
- Index
:JC_cheers:
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Rules of Thumb for Mechanical Engineers - J. Edward Pope, Editor
Product Details: Rules of Thumb for Mechanical Engineers - J. Edward Pope, Editor
Paperback: 406 pages ; pdf ; zip 17.9 MB
Publisher: Gulf Professional Publishing (December 23, 1996)
Language: English
ISBN-10: 0884157903
ISBN-13: 978-0884157908
Product Description
Save time with this collection of straightforward, common-sense techniques that provide quick, accurate solutions to your engineering problems.
Rules of Thumb for Mechanical Engineers assembles hundreds of shortcuts, calculations, practical "how-to" methods, and concise background reviews into one convenient volume.
Whether you're concerned with design, selection, or performance, you'll find fast, accurate answers here - all without wading through pages of theory.
Experts from all engineering disciplines have packed this book's sixteen chapters with design criteria and practical tips. You'll find easy-to-read descriptions on fluids, heat transfer, thermodynamics, seals, pumps, and compressors, drivers, gears, and bearings, as well as piping and pressure vessels.
Also covers tribology, vibrations, materials, stress and fatigue, instrumentation, and engineering economics.
* Save time with this collection of straightforward, common-sense techniques that provide quick, accurate solutions to your engineering problems.
* Hundreds of shortcuts, calculations and practical "how-to" methods in one convenient volume.
* Fast, accurate answers to design, selection, or performance issues.
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Design of Slabs on Grade - Reported by ACI Committee 360
This document presents information on the design of slabs on grade, primarily
industrial floors and the slabs adjacent to them. The report addresses
the planning, design, and detailing of the slabs. Background information
on design theories is followed by discussion of the soil support
system, loadings, and types of slabs. Design methods are given for plain
concrete, reinforced concrete, shrinkage-compensating concrete, and post tensioned
concrete s l a b s , followed by information on shrinkage and curling
problems. Design examples appear in an appendix.
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