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Problem in Deflection Limit ( ETABS) Help!

Posted by: hamzeaziz - 10-03-2010, 09:28 AM - Forum: Archive Problem - Replies (2)

Hi guys
I have a problem with the value of Deflection limit in ETABS for Steel design.
As you see below there is a picture of perfrences tab and its is value.
In yellow mark all the value are as i need it for deflection limit.

[Image: 16kt0fp.jpg]

But as you see below after analysis and design the limit for deflection control are same for all type of loads, even its equal L / 472 ( 25.4mm) !!

[Image: 2wgulaq.jpg]

So where the problem is ? please someone help me!
Thanks

Programming and New generations of engineers

Posted by: mecheil.edwar - 10-03-2010, 08:46 AM - Forum: Free Discussion - Replies (18)

Hoping the new generations of engineers will be more lucky for programming...
nowadays any one need any design tool he is searching for some softwares... thanks god for getting softwares... But I want the developing should be with programming language itself... it should be more easy... why we do not have a programming langauge just you copy paste tool on it...
if the programming language will be easy to produce graphical user interface like autocad or robot and more easy to write the codes then every engineer can read and search and develope his own programs....
it is a dream and hoping it will be a real fact in the nearest future....

[REQUEST] Engineering economy and the decision making process

Posted by: d3d3n - 10-03-2010, 04:17 AM - Forum: Archive - No Replies

	# Full title: Engineering economy and the decision making process # Author(s): Joseph C. Hartman # Publisher: Prentice Hall ( 08/14/2006) # Language: English # ISBN-10: 0131424017 # ISBN-13: 9780131424012 Best regards, d3d3n :yes:

Steel Forgings: Design, Production, Selection, Testing and Application, Manual

Posted by: ibg0203 - 10-03-2010, 01:36 AM - Forum: Codes, Manual & Handbook - Replies (1)

Steel Forgings: Design, Production, Selection, Testing and Application, Manual

Steel Forgings: Design, Production, Selection, Testing and Application, Manual 53
By Edward G. Nisbett

Publisher: ASTM International
Number Of Pages: 143
Publication Date: 2005-10
ISBN-10 / ASIN: 0803133693
ISBN-13 / EAN: 9780803133693

Product Description:
Manual 53 is a comprehensive, in-depth publication that covers the full range and scope of steel forgings. Twenty-two comprehensive chapters discuss:
• Background information on the classification of forgings according to the method of manufacture:
• Importance of steel production methods in establishing the expected properties:
• A critical review of over 60 ASTM forging standards covering applications as diverse as railroad and power generation equipment, pressure vessel components, and a wide range of general industrial equipment
• The effect of various types of forging operations relative to soundness and application
• Specialized nondestructive testing methods developed for forgings
• Economic and quality factors regarding the choice between forgings and other steel product forms
• Special considerations in the heat treatment of forgings
• Pros and cons of the timing of machining and the effect of test specimen location on the anticipated mechanical properties of the forging
• Surface treatments for enhancing forging performance and life
• Forging flaws and examples of service problems

Manual 53 is both a practical and vital resource for design engineers; purchasing managers; manufacturers of pressure vessels, turbines, and generators; metallurgical engineers; university professors, and lawyers.

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Improving The Earthquake Resistance

Posted by: RedHorse - 10-03-2010, 12:43 AM - Forum: Journals, Papers and Presentations - No Replies

Improving The Earthquake Resistance

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Seismic Vulnerability of Flat-slab Structures

Posted by: RedHorse - 10-02-2010, 11:59 PM - Forum: Scientific journals and Research papers - No Replies

Seismic Vulnerability of Flat-slab Structures

Seismic Vulnerability of Flat-slab Structures

Technical Report
Mid-America Earthquake Center
DS-9 Project (Risk Assessment Modelling)

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The Ground Motion of Earthquakes

Posted by: JUANCM - 10-02-2010, 11:23 PM - Forum: Calculation Notes & Analysis Files - Replies (6)

The Ground Motion of Earthquake

This file contains four ground motion of earthquake:
- El Centro 1940

- Loma Prieta 1989:
PEER NGA STRONG MOTION DATABASE RECORD
LOMA PRIETA 10/18/89 00:05, CORRALITOS, 090 (CDMG STATION 57007)
ACCELERATION TIME HISTORY IN UNITS OF G
7989 0.0050 NPTS, DT

- Parkfield 1966:
PEER NGA STRONG MOTION DATABASE RECORD
PARKFIELD 06/28/66 04:26, CHOLAME #2, 065 (CDMG STATION 1013)
ACCELERATION TIME HISTORY IN UNITS OF G
4369 0.0100 NPTS, DT

- San Fernando 1971:
PEER NGA STRONG MOTION DATABASE RECORD
SAN FERNANDO 02/09/71 14:00, PACOIMA DAM, 164 (CDMG STATION 279)
ACCELERATION TIME HISTORY IN UNITS OF G
4164 0.0100 NPTS, DT

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CROATIA - HRN EN

Posted by: Grunf - 10-02-2010, 10:34 PM - Forum: Non-English written codes - Replies (15)

So here is my collection of Eurocodes written in Croatian. I ask other members to share the rest of the HRN EN if they have some of them and if they are willing to share stuff. And I'll be happy if thise members, members willing to share, compose all of their post similar to mine, with all of the corresponding informations and in accordance to the forum rules.

NOTE: If you are writting here something in Croatian you MUST put the transaltion in brackets in English!

HRVATSKA NORMA HRN ENV 1992-1-1 (Croatian Standard)
prvo izdanje (first edition)
ožujak 2001. (March, 2001)

PRORAČUN KONSTRUKCIJA, OD ARMIRANOGA I PREDNAPETOGA BETONA, DIO 1-1: OSNOVE I PRAVILA PRIMJENE ZA ZGRADE
(Design of concrete structures - Part 1-1: General rules and rules for buildings)

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HRVATSKA NORMA HRN ENV 1992-2 (Croatian Standard)
prvo izdanje (first edition)
ožujak 2001. (March, 2001)

PRORAČUN KONSTRUKCIJA OD ARMIRANOGA I PREDNAPETOGA BETONA, DIO 2: BETONSKI MOSTOVI
(Design of concrete structures, Part 2: Concrete bridges)

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HRVATSKA NORMA HRN ENV 1998-1-1 (Croatian Standard)
prvo izdanje (first edition)
ožujak 2001. (March, 2001)

PRORAČUN KONSTRUKCIJA OTPORNIH NA POTRES, DIO 1-1: OPĆA PRAVILA POTRESNA DJELOVANJA I OPĆI ZAHTJEVI ZA KONSTRUKCIJE
(Design provisions for earthquake resistance of structures - Part 1-1: General rules - Seismic actions and general requirements for structures)

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HRVATSKA NORMA HRN ENV 1998-1-2 (Croatian Standard)
prvo izdanje (first edition)
ožujak 2001. (March, 2001)

PRORAČUN KONSTRUKCIJA OTPORNIH NA POTRES, DIO 1-2: OPĆA PRAVILA - OPĆA PRAVILA ZA ZGRADE
(Design provisions for earthquake resistance of structures - Part 1-2: General rules - General rules for buildings)

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HRVATSKA NORMA HRN ENV 1998-1-3 (Croatian Standard)
prvo izdanje (first edition)
ožujak 2001. (March, 2001)

PRORAČUN KONSTRUKCIJA OTPORNIH NA POTRES, DIO 1-3: OPĆA PRAVILA - POSEBNA PRAVILA ZA RAZNA GRADIVA I ELEMENTE
(Design provisions for earthquake resistance of structures - Part 1-3: General rules - Specific rules for for various materials and elements)

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HRVATSKA NORMA HRN ENV 1998-1-4 (Croatian Standard)
prvo izdanje (first edition)
ožujak 2001. (March, 2001)

PRORAČUN KONSTRUKCIJA OTPORNIH NA POTRES, DIO 1-4: OPĆA PRAVILA POJAČAVANJE I POPRAVAK ZGRADA
(Design provisions for earthquake resistance of structures - Part 1-4: General rules - Strengthening and repair of buildings )

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HRVATSKA NORMA HRN ENV 1998-2 (Croatian Standard)
prvo izdanje (first edition)
ožujak 2001. (March, 2001)

PRORAČUN KONSTRUKCIJA OTPORNIH NA POTRES, 2. DIO: MOSTOVI
(Design provisions for earthquake resistance of structures - Part 2: Bridges )

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Last notice but not least: My big THANKS goes to our member, DamirDz, for providing me those documents!

IMPORTANT: Use those publications only for evaluation purposes! If you like those publications, it is strongly suggested you buy it in a way to support the developers. By any means you may NOT use those publications to make money or to use them for commercial purpose!

ETFE: Technology and Design

Posted by: cordoba123 - 10-02-2010, 10:22 PM - Forum: General Books - Replies (1)

ETFE: Technology and Design

Title: ETFE: Technology and Design
Author: Lecuyer, Annette/ Liddell, Ian (Contributor)/ Lehnert, Stefan (Contributor)/ Morris, Ben (Contributor)
Publisher: Birkhauser
Publication Date: Sep-03-2008
Pages: 160
Binding: Hardcover
Edition: 1st
ISBN: 3764385634

ETFE foil has recently become an important material for the cladding of technologically sophisticated and innovative buildings. This material is very thin and lightweight and, when used in air-filled cushion assemblies, has enormous strength and a range of adaptive environmental attributes. ETFE cushion enclosures became known primarily through Grimshaw Architects Eden Project and Herzog & de Meurons Allianz Arena, and they are being used on the spectacular swimming stadium for the 2008 Olympic Games in Beijing, the largest ETFE building envelope in the world so far.

This book is conceived as an in-depth introduction to the characteristics of ETFE and its applications in construction. Project examples explore in detail the specific characteristics of ETFE building skins in the areas of structural behavior, light transmission, insulation, acoustics, fire engineering and environmental modification.

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Best pc loptop for structural engineer

Posted by: mantas1985 - 10-02-2010, 05:29 PM - Forum: Free Discussion - Replies (9)

	Hi, Please tell me what kind of loptop i shoud buy for structural engineering? (for FEM calculations, 3D design of construction). Which operating system is beter 32 or 64 bit?

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