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Modulus of rupture:
fcr=0.7 √fck --IS-456 fck in N/mm2.
Fcr=0.623√f’c—ACI Code .
Use of lower value of fcr will result in more conservative (lower) estimate of cracking moment.
For rough estimation of reinf. Steel in construction projects following thumb rules may be adopted:
SLAB 50 TO 80Kg/m^3 of concrete.
Sunshade 50 Kg/m^3 of concrete.
Lintels 80Kg/m^3 of concrete.
Beams 100TO 150 Kg/m^3 of concrete.
Columns 150 to 225 Kg/m^3 of concrete.
Footing slab 80Kg/m^3 of concrete.
kindly share the following book
Robert Maillart and the Art of Reinforced Concrete
Author Billington David P. Jr.
ISBN 0262023105
ISBN-13 9780262023108
Publisher Mit Press (ma)
Number of Pages 168
Language English
thanks in advance
Foster Associates was established by Norman and Wendy Foster in 1967 after several years of working with Richard Rogers. Perhaps best known internationally for the Hong Kong and Shanghai Bank, the firm has worked recently in the UK, Japan, France, Germany and Spain. Having received over 50 awards and commendations for outstanding architectural design, there has continued to exist a passionate belief in modern architecture and the adaptation of technology to meet human needs. The work presented in this volume covers an enormous range of recent, diverse projects and also illustrates a number of unrealised projects.
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Hi,
I'm searching for the article: Determining the transverse shear stiffness of steel storage rack upright frames (From Journal of Constructional Steel Research Volume 78, November 2012, Pages 107–116)
Somebody can help me?
Thanks
Stefano
ashraf habibullah videos on CSI Annual Celebration , President and CEO of computer and structures company (CSI Berkeley) :
The Advantage of a Ritz Analysis over an Eigen Analysis in Dynamics
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The Power of Virtual Work in Deflection Control of Structures
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When produced correctly, concrete can be extremely strong, with high load-bearing capacity and superior durability. Another noteworthy property is the relatively low amount of energy and resources consumed during production. Super-High-Strength High Performance Concrete brings together the results of a major research project by the National Natural Science Foundation of China and the Doctoral Foundation of the Ministry of Education of China. This ten-year project explored the properties, performance, and potential of super-high-strength high performance (SHSHP) concrete.
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