structural steels

The protective sheath for the reactors

2011-11-22T08:29:00.001-08:00

For three months, resigns from the damaged nuclear plant in Fukushima
radioactivity. Tepco plans now before digesting a protective cover
over the reactors. Construction has already begun.

A spokesman for the Tepco presented at a press conference a model of
the planned construction of the destroyed reactor 1 (June 14, 2011)

In order to prevent the escape of radiation from the damaged nuclear
plant in Fukushima I, operator Tepco has begun to create covers for
the heavily damaged reactors. The plan is a giant steel structure
height of 54 meters, 42 meters long and 47 meters wide, as the daily
"Mainichi Shimbun" reported. Then a protective coat is fastened with a
resin-coated plastic. This roof and wall panels to enclose the reactor
airtight and thus isolate the radiation. At the same time prevent the
housing such that rain water enters the open reactors. It was under
consideration, whether the cover is also plenty of wind and earthquake
resistant.

To protect the workers against radiation, the parts of the housing in
the city about 50 kilometers away Iwaki are collected and assembled.
As "TBS News" reported, was the work for the erection of steel
structure on 13 Started in June.

Then the structure with a ferry to the nuclear plant is being shipped
crashed when using a 140-meter high giant crane, the steel casing is
placed into position quickly. According to the newspaper "Asahi
Shimbun" are blown away and work on the sleeves of the reactor I, the
roof of the hydrogen explosion, was to be completed in late September.
The mantle is a temporary emergency measure, as Tepco stressed. You
still looking for a long term solution. For example, the sarcophagus
at Chernobyl in steel and concrete.

Decontamination of contaminated water

Meanwhile, repair crews are in the Fukushima nuclear ruin before a
further important step to overcome the disaster stage. A facility for
the decontamination of the broth should be taken as possible on Friday
into operation, said the group operator Tepco to continue. With the
new facility, the large amounts of highly contaminated water to clean
the spill in the heavily damaged nuclear plant to cool the reactors.

Was successful in a test run with slightly contaminated water, the
cesium content to the desired level has been reduced, announced the
Japanese Nuclear. Tepco originally had wanted to use the system
earlier. There are, however, occurred among other things, water leaks
that had to be sealed.

Ultra lightweight makes electric vehicles affordable

2011-09-02T06:37:00.001-07:00

Ultra lightweight design makes electric vehicles affordable
Kim-Astrid Magister

Press office

Technical University of Dresden
31.08.2011 13:46
Ultra lightweight makes electric vehicles affordable
ILK Dresden scientists and LZS develop with its partner ThyssenKrupp an electric car under 900 kilograms - Research results for the first time at the 64th IAA 2011 presented

Dresden. The Institute for Lightweight Structures and Polymer Technology (ILK) Dresden University of Technology developed the lightweight center Sachsen GmbH (LZS) and ThyssenKrupp AG, a serial-capable ultra lightweight vehicle. The electrically powered compact car weighs less than 900 kilograms. Through consistent ultra-lightweight construction, the vehicle can take advantage of the benefits of a fully electric drive. The generic lightweight electric vehicle designed for the metro area and is particularly suitable for urban commuting and short distance drivers. Combine with this car project, the researchers sporty driving enjoyment with free attractive vehicle designs and environmentally friendly use.

From the study of electric vehicle - INECO
Ineco means "Composite Innovation Electro-Mobility" and is the name of the project vehicle, researching the experts of all involved project partners in a cooperative effort. Contrary to the common working practice to examine only the components of a vehicle and to substitute certain components with lighter, the research group considered the entire vehicle system. This holistic approach has led scientists to an innovative, integral composite construction that makes the project unique vehicle INECO.

To the production cost of the ultra-lightweight fiber used composite components, such as parts to reduce of carbon fiber reinforced plastics (CFRP), at a minimum, the INECO team in particular with the mass production compatible process design for this group of materials. The lean manufacturing processes are streamlined and automated. The approach here is in the integral composite construction. This can be compared to conventional designs, manufacturing and assembly operations and reduce cost-effectively produce high-quality raw materials in spite of vehicle components.

The consideration of individual vehicle components can not be neglected in spite of the holistic concept. On specially designed components demonstrators in Dresden, for example, tested the crashworthiness of various material combinations and verified. Thus, in dynamic experiments, the impact energy absorption capacity of the sill is tested. The conventional steel construction of the component is replaced with steel hybrid construction: - to create a mass-optimized structure - in the same crash performance.

Carbon steel makes tractable
Ultra lightweight for all system components is a top priority of INECO. The researchers are increasingly in use on a steel-CFRP hybrid construction. Where "the right material at the right place at the right price and with proper ecology" is used. Under the slogan "Carbon steel does soften up" the high ductility of steels with high energy absorption capacity of carbon fiber is combined, which allows extremely lightweight and crashworthy component solutions to be developed.

Innovation through integration
The structural components and the vehicle drive system of the research are planned Ineco highly integrative. By integral components, such as the one-piece vehicle floor structure, many functions and so embedded and mass production steps can be saved. Thus suitable for mass production and implementation of Ineco marketable concept is guaranteed.

The chassis is 120 kg with a true flyweight. Thus, the team proposes a new path in the body weight reduction. Together with ThyssenKrupp AG could be connected in the composite-steel hybrid construction, the excellent properties of steel and carbon fiber to a new mix of materials with low weight and good crash behavior.

The vehicle project Ineco the use of lithium-ion cells is also planned. The battery-containment is difficult and crash-neutral, secure integrated into the center of the vehicle in the soil structure and has a climate that always keeps the battery from "comfort temperature". With a range of 100 to 150 kilometers, the battery technology for high performance with comparatively low mass. The battery design is flexible and can equally flat, round and block include cell batteries. A permanent magnet synchronous electric motor with differential gear, the vehicle accelerates from 0 to 100 km / h in just 7.4 seconds.

Not least, the aesthetic appearance will decide on the successful acceptance of the electric vehicle. Ineco with scientists creating the step away from saving image of an electric vehicle, toward the sporty racer-ecological.

First presentation at the 64th IAA
On the 64th International Automobile Exhibition in Frankfurt am Main, the current research results of 15 to 25 September 2011 (Hall 4.0 / Stand D24) will be presenting. Especially for the first time a design model of the IAA Ineco was made, the 1:4 scale which gives visitors an idea of the new electric car. In addition, the team presents a large series of tunnels capable pressed battery CRP, which is also developed by the project partners. Other exhibits are an innovative, ultra-light carbon fiber suspension and axle system with a newly developed hybrid-steel door sills in CFRP with extremely high energy absorption capacity.

This project is funded as part of the overall project ALIEN funds from the European Union - European Regional Development Fund (ERDF) - and the Free State of Saxony.

Press
Dresden Technical University | Institute for Lightweight Structures and Polymer Technology
Prof. Dr.-Ing. habil. Prof. E.h. Dr. h.c. W. Hufenbach
Holbeinstr. 3, 01307 Dresden
Telephone: (0351) 463 37 915 | E-mail: ilk@ ilk.mw tu-dresden de

Lightweight Design Centre Sachsen GmbH
J. Werner
Marschnerstr. 39, 01307 Dresden
Telephone: (0351) 463 39 477 | E-mail: werner@lzs-dd de

ThyssenKrupp Business Services
B. Stamm
Helenenstr. 110, 45143 Essen
Telephone: (0201) 844 545 185 | E-mail: bernd.overmaat @ thyssenkrupp.com

structural excavations

2010-08-05T02:51:00.000-07:00

As one can see, there are a lot of factors that affect the amount of
settlement on a shoring application. In Example 7.2 the thickness of
the sheet pile and the inevitability of ground loss in cohesive soils F3
had the greatest effect. Using a thinner wall thickness on the sheet
pile would also have resulted in deflection and ground loss, most
likely equivalent to the volume the thick pile used up. Ground loss is
inevitable; however, by focusing on the contributing factors it is
possible to control it, at least to the extent that it is cost-effective.
References
Bowels, Joseph E., Engineering Properties of Soils and Their Measurement, McGraw-
Hill, New York,1986.
Bowels, Joseph E., Foundation Analysis and Design, 5th ed., McGraw-Hill, New York,
1996.
Caquot, A., and Kerisel, J., Tables for the Calculation of Passive Pressure, Active Pressure,
and Bearing Capacity of Foundations, Gauthier-Villars, Paris, 1948.
Chouery, Farid, Slip Surface by Variation for Smooth Wall, Structural and Foundation
Engineer, FAC Systems Inc., Seattle, Wa., 2006.
Chouery, Farid, Variational Method in Deriving Ko, Structural and Foundation
Engineer, FAC Systems Inc., 6738 19th Ave. NW, Seattle, Wa 98117, 2006.
Hashhash, Youssef M. A., and Whittle, Andrew J., “Mechanisms of Load
Transfer Arching for Braced Excavations in Clay,” Journal of Geotechnical and
Geoenvironmental Engineering, vol. 128, no. 3, March 2002.
Michalowski, R.L. and Park, N. “Arching in granular soils.” Geomechanics: Testing,
Modeling and Simulation. Proc. 1st Japan-U.S. Workshop on Testing, Modeling
and Simulation, Boston, 2003. ASCE Geotechnical Special Publication No. 143,
2005, 255–268.

From the excavations handbook.

galvanized steel industry outlook

2010-05-26T05:29:00.001-07:00

This econometric study covers the latent demand outlook for stamped and pressed galvanized steel pails, ash cans, garbage cans, and tubs excluding shipping containers across the states, union territories and cities of India. Latent demand (in millions of U.S. dollars), or potential industry earnings (P.I.E.) estimates are given across over 1,300 cities in India. For each city in question, the percent share the city is of it's state or union territory and of India as a whole is reported. These comparative benchmarks allow the reader to quickly gauge a city vis-a-vis others. This statistical approach can prove very useful to distribution and/or sales force strategies. Using econometric models which project fundamental economic dynamics within each state or union territory and city, latent demand estimates are created for stamped and pressed galvanized steel pails, ash cans, garbage cans, and tubs excluding shipping containers. This report does not discuss the specific players in the market serving the latent demand, nor specific details at the product level. The study also does not consider short-term cyclicalities that might affect realized sales. The study, therefore, is strategic in nature, taking an aggregate and long-run view, irrespective of the players or products involved.

Making steel book review

2010-04-16T09:26:00.000-07:00

This volume, focusing entirely on steelmaking and refining processes, emphasizes the important developments that contributed to the improvements in increased quality and productivity realized by the steel industry in the last ten years. In particular, the chapters on EAF steelmaking and ladle and secondary refining have been greatly expanded. The chapters on BOF and AOD steelmaking have been updated and expanded, and the chapter on fundamentals has been updated to reflect current understanding.

steel making plants

2010-03-15T13:07:00.000-07:00

Find out more about steel making plants at that web sites. More information is wanted right now.

structural steel engineer training manual

2010-03-03T09:08:00.000-08:00

The Structural Engineer's Professional Training Manual offers a solid foundation in the real-world business and problem-solving skills needed in the engineering workplace.

Filled with illustrations and practical “punch-list” summaries, this career-building guide provides an introduction to the practice and business of structural and civil engineering, including lots of detailed advice on developing competence and communicating ideas. Comprehensive and easy-to-understand, The Structural Engineer's Professional Training Manual features:

Recommendations for successfully training engineers who are new to the field
Methods for bringing together ideas from a variety of sources to find workable solutions to difficult problems
Information on the real-world behaviors of building materials
Guidance on licensing, liability, regulations, and employment
Techniques for responsibly estimating design time and cost
Tips on communicating design ideas effectively
Strategies for working successfully as part of a team

Composite Construction in Steel and Concrete

2010-03-02T02:19:00.000-08:00

Composite Construction in Steel and Concrete III: Proceedings of an Engineering Foundation Conference, Swabian Conference Center, Irsee, Germany June 9-14, 1996In Irsee, Germany an international conference on composite construction was held from June 9-14, 1996. It provided a forum for researchers and practitioners involved with composite construction to discuss research findings, new applications, and building code improvements in this fast developing field. All phases of design, construction and research related to steel-concrete composite and mixed systems were discussed. This proceedings contains approximately 80 per cent of the conference presentations. The sessions were organized according to five themes: History, Research, Codes, Case Histories, and Design. The range and timeliness of the papers should make the proceedings interesting to both practicing and research structural engineers.

Steel Structures: Design and Behavior book review

2010-02-15T09:21:00.000-08:00

The design of steel structures has developed over the past hundred years from a simple approach involving a few basic parameters of raw steel and elementary calculations to a more sophisticated treatment demanding a deep know-how of structural behaviour and physical metallurgy. The 5th edition of Steel Structures: Design and Behavior strives to present in a logical manner the theoretical background needed for developing and explaining design requirements. Beginning with the description of a solid background on steel including many references to ongoing research, the development of specific formulas used in the AISC specific is followed by a enormous number of design examples explaining in detail the procedure of selecting minimum weight members to satisfy given requirements for designing a structure.

This book contains both the theoretical knowledge and practical applications needed to thoroughly understand both LRFD and ASD steel design and engineering. The challenges given after concluding each chapter can be worked using these methods. The example solutions within the chapters provide valuable insight to procedures and techniques in mastering problems. The book is certainly an enrichment for the library of any practicioner or student of structural engineering involving steel.

Structural Steel Design

2010-02-05T11:06:00.000-08:00

Structural Steel Design (4th Edition)

We are looking for a good review on this book structural steel design. Anybody interested into writing a review, please contact us.

structural steel at technorati

2008-02-19T07:43:00.000-08:00

Technorati Profile

structural steel link added

2008-02-16T10:38:00.000-08:00

Add New Link - Add A Link

structural steels for south africa.

2008-02-13T05:16:00.000-08:00

New web site on structural steels for South Africa has been established.

steel for construction

2008-02-10T02:18:00.000-08:00

Information on steel for construction and industry. Overview on steel it's manufacturing and it's many applications.