dubai to build the world's largest arch bridge in 2012
if any real city on our planet can claim an active stake in creating the urban landscape of the future, it's probably dubai. artificial islands arranged in the shape of the world? check. the world's only seven-star hotel? check. and in 2012, it will also become home to the largest, tallest arch bridge ever
here's some info on the bridge as envisioned by new york architecture firm fxfowle:
- it's one mile long and 670 feet tall.
- it will have 12 lanes for traffic.
- it will cost 817 million dollars.
- the design has sheikh mohammed's official stamp of approval.
- the bridge will carry more than 2,000 vehicles per hour in each direction.
- a metro line will run across the middle.
- construction begins in march, with a slated completion date of 2012
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Engineering with Mathcad
Using Mathcad to Create and Organize Your Engineering Calculations
Mathcad is perfectly suited for engineering calculations. You work in Mathcad just as you would on a piece of calculation paper. The equations you write on a piece of paper can be entered into Mathcad just as they look on the paper, and just as quickly as you write them on the paper. The benefit of Mathcad is that your calculations are now electronic and can be archived,shared with coworkers, reused on other projects and updated as variables change.Another advantage of Mathcad is that your results can be used in further calculations. If the variables for the first result change, then all the calculations based on that first result are also immediately updated.
Mathcad is easy to learn. There is no programming language that you need to learn. With just a few simple instructions, you can begin using Mathcad. With Mathcad all your calculations are presented on the worksheet. They are not hidden in cells as they are in spreadsheets. Also, all variables are named. You do not need to remember which cells the variables are stored in. This makes
checking the Mathcad calculations much simpler.
This book is divided into four parts:
Part I—Building your Mathcad Toolbox. This is where you build your Mathcad toolbox—your basic understanding of Mathcad. It teaches the basics of the Mathcad program. The chapters in this part create a solid foundation upon which to build.
Part II—Hand Tools for your Mathcad Toolbox. The chapters in this part will focus on simple features to get you comfortable with Mathcad.
Part III—Power Tools for your Mathcad Toolbox. This part addresses more complex and powerful Mathcad features.
PartIV—Creating and Organizing your Engineering Calculations with Mathcad.
This is where you start using the tools in your toolbox to build something— engineering calculations. This part discusses embedding other programs into Mathcad. It also discusses how to assemble calculations from multiple Mathcad files, and files from other programs.
Brent Maxfield
ISBN-13: 978-0-7506-6702-9
ISBN-10: 0-7506-6702-8
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Here are some videos on how STEEL is fabricated and how its used in the construction of buildings and factories. These training videos are from Corus, Europe's second biggest steelmaker in collaboration with the BCSA (British Constructional Steel Association). Video Resolution is 320x240.
SIZE: 37MB x 3Videos
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dear members
this illustration belong to phase 1(TCBF1-HSS-8t)
infıo:
INTRODUCTION
The properties of Specially Concentric Braced Frames (SCBF) systems have the potential to meet multiple performance objectives. However, previous research has shown that the current design procedures can lead to soft stories, inadequate gusset plate connections, unexpected failure modes, brittle welds and premature brace failure. To improve the performance and to meet the engineering needs of future seismic load resisting systems, an international research team is working to develop Tomorrows Concentric Braced Frame (TCBF) systems. This research team receives support from the NEES program and the National Science Foundation with a NEESR Small Group project entitled "International Hybrid Simulation of Tomorrows Braced Frame Systems". The international team of collaborators includes researchers from the University of Washington (UW), the University of California Berkeley (UCB), the University of Minnesota (UM) and the NCREE Laboratory in Taiwan. Researchers from Japan, Canada, industry professionals and practicing engineers are also collaborating on this project.
for more drawings,photos and seeing phase 2
please visit above link,
i think ,this post useful for forum memebrs
in additional,
if you visit the 3.link,you can view plot results.
like frame displacements etc..
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Depicts actual construction progress throughout the San Francisco Bay Area Rapid Transit System during 1967-68, emphasizing the original and continuing aims of the district--to provide safe, fast, economical and comfortable mass transit, thereby eliminating traffic congestion and preserving the beauty and character of the area.
you can watching online and/or downlaod video
regards
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Skyline identity has often been important to the designers of (and those commissioning) skyscrapers. This pyramid with flared wings has become the advertising logo of its owners. At 853 feet, it is the tallest commercial building in San Francisco.
Fracture Resistance Testing of Monolithic and Composite Brittle Materials
Fracture Resistance Testing of Monolithic and Composite Brittle Materials
(ASTM Special Technical Publication, 1409)
ASTM International; illustrated edition (January 1, 2002) | English | 0803128800 | 237 pages | PDF | 4.31 MB
STP 1409 features 14 peer-reviewed papers that summarize the latest methods for the measurement of fracture toughness, slow crack growth, and biaxial strength. It also identifies new areas for fracture toughness test methods development and standardization, such as testing of complex materials, elevated temperature measurement, and R-curve measurement.
5 sections cover:
· Plenary Session – discusses 30 years of progress in fracture mechanics of brittle materials.
· Implications For Design and Testing – focuses on the analysis of plates for biaxial strength testing and the transition in measured fracture toughness from a value associated with the properties of a single grain to the polycrystalline value.
· Fracture Toughness Standardization – examines 3 techniques that were developed and standardized as part of ASTM C 1421 Standard Test Methods for Determination of Fracture Toughness of Advanced Ceramics at Ambient Temperatures. These techniques show convergence when good metrology is employed. In addition to standardized techniques, this section discusses the single edged V-notched beam method that is on a fast track for standardization in Europe.
· Crack Growth Resistance – covers testing of functionally graded materials, elevated temperature R-curve testing, and the study of a toughening mechanism. Although most researchers applied classical mechanical techniques for the measurement of fracture toughness or crack growth resistance, both theoretical and fractographic methods were also presented.
· Unique Materials and Environmental Effects – examines elevated temperature fracture toughness testing of particulate reinforced ceramic composites, thermal and environmental effects on the fracture toughness of titanium carbonitrides for machining, and environmental interactions that lead to rate effects in "dynamic fatigue" (i.e., stress corrosion) testing.
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Author: Robert W. Fox - Philip J. Pritchard - Alan T. McDonald | Size: 33 MB | Format:PDF | Publisher: Wiley | Year: 2003 | pages: 800 | ISBN: 0471202312
Fox & McDonald provide a balanced and comprehensive approach to fluid mechanics that arms readers with proven problem-solving methodology! The authors show how to develop an orderly plan to solve problems: starting from basic equations, then clearly stating assumptions, and finally, relating results to expected physical behavior. This new edition simplifies many of the steps involved in analysis by using the computer application Excel.
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