Prestressing as action or resistance - Revision history

Ok at 13:27, 20 April 2009

2009-04-20T13:27:54Z

← Older revision		Revision as of 15:27, 20 April 2009
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	* Based on article 5.10.1, bullet 2, the effects of prestressing can be considered as an action or a resistance		* Based on article 5.10.1, bullet 2, the effects of prestressing can be considered as an action or a resistance

			== References ==

			* M. B. Cavalcanti, B. Horowitz: [http://revistas.ibracon.org.br/index.php/riem/article/viewFile/53/39 Flexural Analysis of Prestressed Concrete Structures], IBRACON Structures and materials journal, Volume 1, Number 4 (December, 2008) p. 331 - 364, ISSN 1983-4195 - describes two methods that can be used to evaluate capacity of prestressed concrete members; method 1 treats prestressing as integral part of the section, while method 2 treats prestressing as external load.

	{{Prestressed Concrete}}		{{Prestressed Concrete}}

Ok at 04:44, 14 April 2009

2009-04-14T04:44:56Z

← Older revision		Revision as of 06:44, 14 April 2009
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	* Considers the prestressing strands as integral part of the cross section, where prestressing operation introduces imposed deformation corresponding the pre-elongation of the active reinforcement.		* Considers the prestressing strands as integral part of the cross section, where prestressing operation introduces imposed deformation corresponding the pre-elongation of the active reinforcement.
			* Hyperstatic effects must be considered.

	== Prestressing as action ==		== Prestressing as action ==

Ok at 04:43, 14 April 2009

2009-04-14T04:43:13Z

← Older revision		Revision as of 06:43, 14 April 2009
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	There are two distinct approaches to the design checks of prestressed concrete members - the prestressing can be either treated as resistance (integral part of the section) or as action (load)		There are two distinct approaches to the design checks of prestressed concrete members - the prestressing can be either treated as resistance (integral part of the section) or as action (load)

			== Prestressing as resistance ==

			* Considers the prestressing strands as integral part of the cross section, where prestressing operation introduces imposed deformation corresponding the pre-elongation of the active reinforcement.

			== Prestressing as action ==

			* Considers prestressing as external loading consisting of a self-equilibrating system of forces in the anchorages and the transversally in the concrete. After transfer prestressing strands are considered as conventional reinforcement, only taking into consideration the pre-elongation.

	== Treatment in different codes ==		== Treatment in different codes ==

Ok at 04:39, 14 April 2009

2009-04-14T04:39:46Z

← Older revision		Revision as of 06:39, 14 April 2009
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			There are two distinct approaches to the design checks of prestressed concrete members - the prestressing can be either treated as resistance (integral part of the section) or as action (load)

	== Treatment in different codes ==		== Treatment in different codes ==

Ok at 04:37, 14 April 2009

2009-04-14T04:37:57Z

← Older revision		Revision as of 06:37, 14 April 2009
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	== Treatment in different codes ==		== Treatment in different codes ==

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	* Based on C5.7.1, prestressing is treated as part of resistance		* Based on C5.7.1, prestressing is treated as part of resistance

	=== Eurocode 2 (1992)==		=== Eurocode 2 (1992) ===

	* Based on article 5.10.1, bullet 2, the effects of prestressing can be considered as an action or a resistance		* Based on article 5.10.1, bullet 2, the effects of prestressing can be considered as an action or a resistance

Ok: New page: == Treatment in different codes == === AASHTO LRFD 2007 === * Based on C5.7.1, prestressing is treated as part of resistance === Eurocode 2 (1992)== * Based on article 5.10.1, bullet ...

2009-04-14T04:36:45Z

New page: == Treatment in different codes == === AASHTO LRFD 2007 === * Based on C5.7.1, prestressing is treated as part of resistance === Eurocode 2 (1992)== * Based on article 5.10.1, bullet ...

New page

== Treatment in different codes ==

=== AASHTO LRFD 2007 ===

* Based on C5.7.1, prestressing is treated as part of resistance

=== Eurocode 2 (1992)==

* Based on article 5.10.1, bullet 2, the effects of prestressing can be considered as an action or a resistance

{{Prestressed Concrete}}