ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and
non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights.
ISO 1099 was prepared by Technical Committee ISO/TC 164, Mechanical testing of metals, Subcommittee SC 5, Fatigue testing. This second edition cancels and replaces the first edition (ISO 1099:1975), which has been technically revised.
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Design of Riprap Revetment, FHWA-IP-89-016
Design of Riprap Revetment SI, FHWA-IF-00-022-1
2 files PDF|RAR 12.69 MB
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Thickness Design for Concrete Highway and Street Pavements Canadian Edition
This bulletin deals with methods of determining slab thicknesses adequate to carry traffic loads on concrete streets, roads, and highways. The design purpose is the same as for other engineered structures-to find the minimum thickness that will result in the lowest annual cost as shown by both first cost and maintenance costs. If the thickness is greater tl~an needed, the pavement will give good service with low maintenance costs, but first cost will be high. If the thickness is not adequate, premature and costly maintenance and interruptions in traffic will more than offset the lower first cost. Sound engineering requires thickness designs that properly balance first costs and maintenance costs. While this bulletin is confined to the topic of thickness design, other design aspects are equally important to ensure the performance and long life of concrete pavements. These il~clude- Provision for reasonably uniform subgrade support. (See Reference 1 for additional detail.) Prevention of mud-pumping or faulting with a relatively thin untreated or cement-treated subbase on projects where the expected truck traffic will be great enough to cause pumping. (The need for and equirements of subbase are described in References 1, 2, and 3.) Use of a joint design that will afford adequate load transfer, control cracking, and prevent joint distress due to infiltration. ("5) Use of a concrete mix design and aggregates that will provide quality concrete wit11 the strength and durability needed for long life under the actual exposure
conditions. (6) The thickness design criteria suggested are based on general pavement performance experience. If regional or local specific performance experience becomes available for more favorable or adverse conditions, the design criteria can be appropriately modified. This could be the case for particular climate, soil, or drainage conditions and
future design innovations.
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Edited by
David Doran
Consultant
Formerly Chief Structural Engineer,
Wimpey plc
ISBN 1-870325-24-9
This manual provides guidance for engineers on construction sites and lists references from which to obtain further and supporting information. It is a daunting challenge to adequately advise and steer site engineers for the wide range of construction projects on which they might be employed. David Doran with his fellow authors successfully advises from earthworks and foundations through structures to cladding, services and finishes. Management, quality, health and safety, plant, setting out and weather are dealt with separately. At 452 pages it still lists over 500 British Standards and other documents for further information. Many of those will in turn refer to more documents. How do engineers get the time to become reasonably familiar with those they are deemed to know and the application of them to problems arising on site? Many Codes do not contain advice for those dealing with temporary works and other site activities. A notable exception is BS 5975 for falsework and chapter 11 draws particular attention to this and a few more of its references but other chapters are not so helpful.
Construction is undertaken by a workforce under the direction of foremen and charge-hands. The task of the site engineer is to enable them to operate efficiently and accurately. The site engineer needs to work closely with them to provide setting out which enables the work to be constructed and controlled easily with checks made at appropriate stages when any adjustments can be made with minimal delay and cost. The workforce and supervisors need to have confidence in their site engineer and the instructions provided not least because his actions can affect their productivity and bonus. With confidence in him/her they are more likely to be forthcoming with practical suggestions. More could have been included about working and communicating with people on site but then what does one leave out!
The codes, standards, guides and regulations applying to construction seem to be constantly increasing and changing and engineers keep abreast of them with difficulty. Manuals such as this one are much needed and this one is commended for site engineers.
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The Second International Symposium on Life-Cycle Civil Engineering
On behalf of the International Association for Life-Cycle Civil Engineering (IALCCE), we are pleased to announce that the Second International Symposium on Life-Cycle Civil Engineering (IALCCE2010) is organized under the auspices of the National University of Science and Technology (TAIWAN TECH) and will be held in Taipei, Taiwan, October 27-31, 2010.
IALCCE is a young Association founded in October 2006. IALCCE encompasses all aspects of life-cycle assessment, design, maintenance, rehabilitation and monitoring of civil engineering systems. The objective of the Association is to promote international cooperation in the field of life-cycle civil engineering for the purpose of enhancing the welfare of society.
The aim of IALCCE2010 is to bring together all the very best work that has been done in the field of life-cycle civil engineering and related topics, to stimulate and promote research into this field, and to bridge the gap between theory and practice.
This Symposium will be of interest to university researchers, representatives from all sections of civil engineering, and engineers working with engineering companies, consultants, contractors, and local authorities interested in all aspects of life-cycle civil engineering.
By participating at this event you can promote your research and professional work, learn and discuss about the latest accomplishments, innovations and potential future directions in life-cycle civil engineering, and enjoy the charming atmosphere of Taipei as well.
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EN 1917:2002 Concrete manholes and inspection chambers, unreinforced, steel fibre and reinforced + AC:2006
This European Standard specifies performance requirements as defined in table 1 and describes test methods for precast concrete units, including joints (elastomeric, plastomeric or other sealing materials, either integrated in the unit or supplied separately), for inspection chambers designed to be used for inverts not exceeding 2 metres deep and manholes, of circular, rectangular (with or without chamfered or rounded corners) or elliptical internal shape, unreinforced, steel fibre and reinforced, with nominal sizes not exceeding DN 1250 for units with a circular bore or LN 1250 for units with a rectangular or elliptical shape.
BS 5911-3:2010 Concrete pipes and ancillary concrete products Part 3: Specification for nreinforced and reinforced concrete manholes and soakaways (complementary to BS EN 1917:2002)
BS EN 1917 specifies requirements and describes test methods for precast concrete manholes of circular, rectangular (with or without chamfered or rounded corners) or elliptical cross-section, unreinforced, steel fibre and reinforced, with nominal sizes or nominal lengths not exceeding DN 1250 or LN 1250, respectively. The intended use of BS EN 1917 is to permit access to, and to allow aeration of, drain or sewer systems for the conveyance of sewage, rainwater and surface water under gravity or occasionally at low head of pressure, mainly installed in areas subjected to vehicular and/or pedestrian traffic.
This part of BS 5911 specifies complementary requirements to those in BS EN 1917 for unreinforced and reinforced concrete manholes of circular and rectangular cross-section (with or without chamfered or rounded corners), as provided for in BS EN 1917, i.e. units with nominal sizes or nominal lengths not exceeding DN 1250 or LN 1250, respectively. Full requirements for unreinforced and reinforced concrete manholes with nominal sizes greater than DN 1250, but not exceeding DN 3000, are also specified. The manholes are intended to be installed in carriageways of roads (including pedestrian streets), hard shoulders and parking areas for all types of road vehicles, though provision is also made for units subject to lighter traffic loading. Requirements for soakaways, landing slabs and corbel slabs are also specified. BS EN 752, BS EN 1295-1 and BS EN 1610 deal with the planning, design, installation and testing of drains and sewers.
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Imperial College Inaugural Lectures in
Materials Science and Materials Engineering By Don W. Pashley
IMPERIAL COLLEGE INAUGURAL LECTURES IN MATERIALS SCIENCE AND MATERIALS ENGINEERING
edited by Don W Pashley (Imperial College, UK)
This volume contains six important articles in materials science and materials engineering, based upon inaugural lectures given by professors at Imperial College, London. Each author deals with an area of work in which he has been involved over a period of years, and gives a personal account, partly historical, of the main features and importance of his subject. The topics covered include: the strength and deformation of metals, the brittle behaviour of ceramics, electrical materials, biomaterials, friction and lubrication, and modern engineering adhesives.
Contents:
Slippery Customers, Sticky Problems (B J Briscoe)
Sticking Up for Adhesives (A J Kinloch)
Magical Materials for Motionless Machines (D B Holt)
Interfaces in Materials — If You Can't Beat them, Join Them (A Atkinson)
Brittleness — A Tough Problem (R D Rawlings)
The Story of Bioglass: From Concept to Clinic (L L Hench).
Readership: Scientists and engineers with a general interest in materials science and materials engineering.
ISBN-13: 9781848161740(ebook)
ISBN-10: 1848161743(ebook)
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Journal of Applied Mechanics,
Vol. 68, No. 1. (2001),
pp. 87-92.
The Timoshenko beam theory includes the effects of shear deformation and rotary inertia on the vibrations of slender beams. The theory contains a shear coefficient which has been the subject of much previous research. In this paper a new formula for the shear coefficient is derived. For a circular cross section, the resulting shear coefficient that is derived is in full agreement with the value most authors have considered "best." Shear coefficients for a number of different cross sections are found.
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Dear Admin
I hope to be fine
My Suggestion is creating a new section for general repairing specially repairing concrete
and the new section will include the following
1. repairing concrete , roads , railways , buldings , steel structure , etc
2. all related videos , photos , papers , and also books should be posted in this section
and moving all related Subjects in the fourm to this sec.
3. the materials which are using in reparing and its datd sheets
4. the famous companies in the repairing field and its products
5. the concrete admix. and its effects in concrete characteristics
from my side , the modefications on my Suggestion are available for all
regards
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