Slip form concrete - Revision history

157.33.51.194 at 06:21, 18 May 2022

2022-05-18T06:21:57Z

← Older revision		Revision as of 06:21, 18 May 2022
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	=== External references ===		=== External references ===

−	* The Concrete Centre – [[w/index.php?title=W/index.php%3Ftitle%3DW/index.php%3Ftitle%3DW/index.php%3Ftitle%3DW/index.php%3Ftitle%3DWww.concretecentre.com/technical_information/building_solutions/formwork/slip_form.aspx%26action%3Dedit%26redlink%3D1%26action%3Dedit%26redlink%3D1%26action%3Dedit%26redlink%3D1%26action%3Dedit%26redlink%3D1&action=edit&redlink=1\|Technical Information]]	+	* The Concrete Centre [[w/index.php?title=W/index.php%3Ftitle%3DW/index.php%3Ftitle%3DW/index.php%3Ftitle%3DW/index.php%3Ftitle%3DWww.concretecentre.com/technical_information/building_solutions/formwork/slip_form.aspx%26action%3Dedit%26redlink%3D1%26action%3Dedit%26redlink%3D1%26action%3Dedit%26redlink%3D1%26action%3Dedit%26redlink%3D1&action=edit&redlink=1\|Technical Information]]
	* [http://www.brighthubengineering.com/building-construction-design/123381-a-non-stop-method-for-building-concrete-structures/ Bright Hub Engineering]		* [http://www.brighthubengineering.com/building-construction-design/123381-a-non-stop-method-for-building-concrete-structures/ Bright Hub Engineering]

−	[[Category:DCN_Definition]] [[Category:DCN_Guidance]] [[Category:DCN_Product_Knowledge]] [[Category:Construction_techniques]]	+	[[Category:Articles_needing_more_work]] [[Category:DCN_Definition]] [[Category:DCN_Guidance]] [[Category:DCN_Product_Knowledge]] [[Category:Construction_techniques]]

Designing Buildings at 09:29, 28 September 2020

2020-09-28T09:29:45Z

← Older revision		Revision as of 09:29, 28 September 2020
Line 55:		Line 55:
	=== External references ===		=== External references ===

−	* The Concrete Centre – [[w/index.php?title=W/index.php%3Ftitle%3DW/index.php%3Ftitle%3DW/index.php%3Ftitle%3DWww.concretecentre.com/technical_information/building_solutions/formwork/slip_form.aspx%26action%3Dedit%26redlink%3D1%26action%3Dedit%26redlink%3D1%26action%3Dedit%26redlink%3D1&action=edit&redlink=1\|Technical Information]]	+	* The Concrete Centre – [[w/index.php?title=W/index.php%3Ftitle%3DW/index.php%3Ftitle%3DW/index.php%3Ftitle%3DW/index.php%3Ftitle%3DWww.concretecentre.com/technical_information/building_solutions/formwork/slip_form.aspx%26action%3Dedit%26redlink%3D1%26action%3Dedit%26redlink%3D1%26action%3Dedit%26redlink%3D1%26action%3Dedit%26redlink%3D1&action=edit&redlink=1\|Technical Information]]
	* [http://www.brighthubengineering.com/building-construction-design/123381-a-non-stop-method-for-building-concrete-structures/ Bright Hub Engineering]		* [http://www.brighthubengineering.com/building-construction-design/123381-a-non-stop-method-for-building-concrete-structures/ Bright Hub Engineering]

−	[[Category:Construction_techniques]]	+	[[Category:DCN_Definition]] [[Category:DCN_Guidance]] [[Category:DCN_Product_Knowledge]] [[Category:Construction_techniques]]

Editor at 17:29, 7 January 2020

2020-01-07T17:29:32Z

← Older revision		Revision as of 17:29, 7 January 2020
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	* There is flexibility in that tapering structures with wall reductions (either gradual, over a short distance, or stepped) can be achieved.		* There is flexibility in that tapering structures with wall reductions (either gradual, over a short distance, or stepped) can be achieved.

−	~~= Find out more =~~	+	= Related articles on Designing Buildings Wiki =
−		+
−	=== Related articles on Designing Buildings Wiki ===	+

	* Architectural concrete.		* Architectural concrete.
	* Concrete.		* Concrete.
		+	* Differences between jumpform and slipform climbing formwork systems.
	* Falsework.		* Falsework.
	* Formwork.		* Formwork.
Line 56:		Line 55:
	=== External references ===		=== External references ===

−	* The Concrete Centre – [[w/index.php?title=W/index.php%3Ftitle%3DW/index.php%3Ftitle%3DWww.concretecentre.com/technical_information/building_solutions/formwork/slip_form.aspx%26action%3Dedit%26redlink%3D1%26action%3Dedit%26redlink%3D1&action=edit&redlink=1\|Technical Information]]	+	* The Concrete Centre – [[w/index.php?title=W/index.php%3Ftitle%3DW/index.php%3Ftitle%3DW/index.php%3Ftitle%3DWww.concretecentre.com/technical_information/building_solutions/formwork/slip_form.aspx%26action%3Dedit%26redlink%3D1%26action%3Dedit%26redlink%3D1%26action%3Dedit%26redlink%3D1&action=edit&redlink=1\|Technical Information]]
	* [http://www.brighthubengineering.com/building-construction-design/123381-a-non-stop-method-for-building-concrete-structures/ Bright Hub Engineering]		* [http://www.brighthubengineering.com/building-construction-design/123381-a-non-stop-method-for-building-concrete-structures/ Bright Hub Engineering]

	[[Category:Construction_techniques]]		[[Category:Construction_techniques]]

Editor at 12:10, 20 April 2017

2017-04-20T12:10:20Z

← Older revision		Revision as of 12:10, 20 April 2017
Line 45:		Line 45:
	=== Related articles on Designing Buildings Wiki ===		=== Related articles on Designing Buildings Wiki ===

		+	* Architectural concrete.
	* Concrete.		* Concrete.
	* Falsework.		* Falsework.
Line 55:		Line 56:
	=== External references ===		=== External references ===

−	* The Concrete Centre – [[w/index.php?title=W/index.php%3Ftitle%3DWww.concretecentre.com/technical_information/building_solutions/formwork/slip_form.aspx%26action%3Dedit%26redlink%3D1&action=edit&redlink=1\|Technical Information]]	+	* The Concrete Centre – [[w/index.php?title=W/index.php%3Ftitle%3DW/index.php%3Ftitle%3DWww.concretecentre.com/technical_information/building_solutions/formwork/slip_form.aspx%26action%3Dedit%26redlink%3D1%26action%3Dedit%26redlink%3D1&action=edit&redlink=1\|Technical Information]]
	* [http://www.brighthubengineering.com/building-construction-design/123381-a-non-stop-method-for-building-concrete-structures/ Bright Hub Engineering]		* [http://www.brighthubengineering.com/building-construction-design/123381-a-non-stop-method-for-building-concrete-structures/ Bright Hub Engineering]

	[[Category:Construction_techniques]]		[[Category:Construction_techniques]]

Editor at 13:23, 24 October 2016

2016-10-24T13:23:16Z

← Older revision		Revision as of 13:23, 24 October 2016
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	* Slip form systems require a small but skilled workforce on site.		* Slip form systems require a small but skilled workforce on site.
	* There is flexibility in that tapering structures with wall reductions (either gradual, over a short distance, or stepped) can be achieved.		* There is flexibility in that tapering structures with wall reductions (either gradual, over a short distance, or stepped) can be achieved.
		+
		+	= Find out more =

	=== Related articles on Designing Buildings Wiki ===		=== Related articles on Designing Buildings Wiki ===
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	* Reinforced concrete.		* Reinforced concrete.
	* Scaffolding.		* Scaffolding.
		+	* Structural steelwork.
	* Temporary works.		* Temporary works.

−	External references	+	=== External references ===
−		+
−	~~The Concrete Centre – [[w/index.php?title~~=~~Www.concretecentre.com/technical_information/building_solutions/formwork/slip_form.aspx&action~~=~~edit&redlink~~=~~1\|Technical Information]]~~	+

−	[http://www.brighthubengineering.com/building-construction-design/123381-a-non-stop-method-for-building-concrete-structures/ Bright Hub Engineering]	+	* The Concrete Centre – [[w/index.php?title=W/index.php%3Ftitle%3DWww.concretecentre.com/technical_information/building_solutions/formwork/slip_form.aspx%26action%3Dedit%26redlink%3D1&action=edit&redlink=1\|Technical Information]]
		+	* [http://www.brighthubengineering.com/building-construction-design/123381-a-non-stop-method-for-building-concrete-structures/ Bright Hub Engineering]

	[[Category:Construction_techniques]]		[[Category:Construction_techniques]]

Editor at 14:56, 18 May 2016

2016-05-18T14:56:09Z

← Older revision		Revision as of 14:56, 18 May 2016
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−
	= Introduction =		= Introduction =

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	Slip form is a method of construction in which concrete is poured into the top of a continuously moving formwork. As the concrete is poured, the formwork is raised vertically at a speed which allows the concrete to harden before it is free from the formwork at the bottom.. Slip form is most economical for structures over 7 storeys high such as bridges and towers, as it is the fastest method of construction for vertical reinforced concrete structures, but it can also be used for horizontal structures such as roadways.		Slip form is a method of construction in which concrete is poured into the top of a continuously moving formwork. As the concrete is poured, the formwork is raised vertically at a speed which allows the concrete to harden before it is free from the formwork at the bottom.. Slip form is most economical for structures over 7 storeys high such as bridges and towers, as it is the fastest method of construction for vertical reinforced concrete structures, but it can also be used for horizontal structures such as roadways.

−	As long as there is a regular shape or core, formwork can be used for a smooth, continuous pour that requires no joints. The formwork supports itself on the core rather than relying on other parts of the building or permanent works, and rises at a rate of about 300 mm per hour.	+	As long as there is a regular shape or core, formwork can be used for a smooth, continuous pour that requires no joints. The formwork supports itself on the core rather than relying on other parts of the building or permanent works, and rises at a rate of about 300 mm per hour.

	The concrete to be used needs to be workable enough to be placed into the form and consolidated by vibration, yet quick-setting enough to emerge from the form with strength. The concrete must be constantly monitored for its setting rate to ensure the forms are not being raised too fast.		The concrete to be used needs to be workable enough to be placed into the form and consolidated by vibration, yet quick-setting enough to emerge from the form with strength. The concrete must be constantly monitored for its setting rate to ensure the forms are not being raised too fast.

	Usually, the formwork has three platforms:		Usually, the formwork has three platforms:
−	*Upper platform: This acts as a storage and distribution area.	+
−	*Middle platform: This is the main working platform and sits at the top of the poured concrete level.	+	* Upper platform: This acts as a storage and distribution area.
−	*Lower platform: This provides access for concrete finishing.	+	* Middle platform: This is the main working platform and sits at the top of the poured concrete level.
		+	* Lower platform: This provides access for concrete finishing.

	It is essential that the middle supporting platform is rigid so that all parts of the structure move simultaneously. The shuttering can drag if there is inconsistency in the rate at which the platform is moving which can cause difficulties.		It is essential that the middle supporting platform is rigid so that all parts of the structure move simultaneously. The shuttering can drag if there is inconsistency in the rate at which the platform is moving which can cause difficulties.
Line 20:		Line 20:

	The types of structure that are most commonly constructed used slip forming techniques include:		The types of structure that are most commonly constructed used slip forming techniques include:
−	*Service cores for commercial buildings.
−	*Lift and stair shafts.
−	*Silos.
−	*Chimneys.
−	*Concrete gravity structures such as oil platforms.
−	*Bridge pylons and piers.
−	*Mine headgear towers.
−	*Shaft linings.
−	*Surge shafts.
−	*Liquid containment vessels.

−	= Advantages of slip forming =	+	* Service cores for commercial buildings.
−	*Slip forming can achieve high production rates, however, once continuous concreting has begun there is little flexibility for change and so very careful planning is required.	+	* Lift and stair shafts.
−	*Crane use is minimised.	+	* Silos.
−	*Only minimal scaffolding and temporary works are required allowing the construction site to be less congested, and so safer.	+	* Chimneys.
−	*The exposed concrete can be finished at the bottom of the rising formwork.	+	* Concrete gravity structures such as oil platforms.
−	*Slip form systems require a small but skilled workforce on site.	+	* Bridge pylons and piers.
−	*There is flexibility in that tapering structures with wall reductions (either gradual, over a short distance, or stepped) can be achieved.	+	* Mine headgear towers.
		+	* Shaft linings.
		+	* Surge shafts.
		+	* Liquid containment vessels.
		+
		+	= Advantages of slip forming =
		+
		+	* Slip forming can achieve high production rates, however, once continuous concreting has begun there is little flexibility for change and so very careful planning is required.
		+	* Crane use is minimised.
		+	* Only minimal scaffolding and temporary works are required allowing the construction site to be less congested, and so safer.
		+	* The exposed concrete can be finished at the bottom of the rising formwork.
		+	* Slip form systems require a small but skilled workforce on site.
		+	* There is flexibility in that tapering structures with wall reductions (either gradual, over a short distance, or stepped) can be achieved.

	=== Related articles on Designing Buildings Wiki ===		=== Related articles on Designing Buildings Wiki ===
−	*Concrete.
−	*Falsework.
−	*Formwork.
−	*Scaffolding.
−	*Temporary works.

−	~~'''~~External references~~'''~~	+	* Concrete.
		+	* Falsework.
		+	* Formwork.
		+	* Reinforced concrete.
		+	* Scaffolding.
		+	* Temporary works.
		+
		+	External references

−	The Concrete Centre – [[~~www~~.concretecentre.com/technical_information/building_solutions/formwork/slip_form.aspx\|Technical Information]]	+	The Concrete Centre – [[w/index.php?title=Www.concretecentre.com/technical_information/building_solutions/formwork/slip_form.aspx&action=edit&redlink=1\|Technical Information]]

	[http://www.brighthubengineering.com/building-construction-design/123381-a-non-stop-method-for-building-concrete-structures/ Bright Hub Engineering]		[http://www.brighthubengineering.com/building-construction-design/123381-a-non-stop-method-for-building-concrete-structures/ Bright Hub Engineering]

	[[Category:Construction_techniques]]		[[Category:Construction_techniques]]

Editor: moved Slip form to Slip form concrete

2015-11-12T09:25:10Z

moved Slip form to Slip form concrete

← Older revision

Revision as of 09:25, 12 November 2015

Editor: Created page with " = Introduction = Formwork is a temporary mould into which concrete is poured and formed. Traditional formwork is fabricated using timber, but it can also be constructed from st..."

2015-10-29T10:55:20Z

Created page with " = Introduction = Formwork is a temporary mould into which concrete is poured and formed. Traditional formwork is fabricated using timber, but it can also be constructed from st..."

New page

= Introduction =

Formwork is a temporary mould into which concrete is poured and formed. Traditional formwork is fabricated using timber, but it can also be constructed from steel, glass fibre reinforced plastics and other materials.

Slip form is a method of construction in which concrete is poured into the top of a continuously moving formwork. As the concrete is poured, the formwork is raised vertically at a speed which allows the concrete to harden before it is free from the formwork at the bottom.. Slip form is most economical for structures over 7 storeys high such as bridges and towers, as it is the fastest method of construction for vertical reinforced concrete structures, but it can also be used for horizontal structures such as roadways.

As long as there is a regular shape or core, formwork can be used for a smooth, continuous pour that requires no joints. The formwork supports itself on the core rather than relying on other parts of the building or permanent works, and rises at a rate of about 300 mm per hour.

The concrete to be used needs to be workable enough to be placed into the form and consolidated by vibration, yet quick-setting enough to emerge from the form with strength. The concrete must be constantly monitored for its setting rate to ensure the forms are not being raised too fast.

Usually, the formwork has three platforms:
*Upper platform: This acts as a storage and distribution area.
*Middle platform: This is the main working platform and sits at the top of the poured concrete level.
*Lower platform: This provides access for concrete finishing.

It is essential that the middle supporting platform is rigid so that all parts of the structure move simultaneously. The shuttering can drag if there is inconsistency in the rate at which the platform is moving which can cause difficulties.

= Types of structure =

The types of structure that are most commonly constructed used slip forming techniques include:
*Service cores for commercial buildings.
*Lift and stair shafts.
*Silos.
*Chimneys.
*Concrete gravity structures such as oil platforms.
*Bridge pylons and piers.
*Mine headgear towers.
*Shaft linings.
*Surge shafts.
*Liquid containment vessels.

= Advantages of slip forming =
*Slip forming can achieve high production rates, however, once continuous concreting has begun there is little flexibility for change and so very careful planning is required.
*Crane use is minimised.
*Only minimal scaffolding and temporary works are required allowing the construction site to be less congested, and so safer.
*The exposed concrete can be finished at the bottom of the rising formwork.
*Slip form systems require a small but skilled workforce on site.
*There is flexibility in that tapering structures with wall reductions (either gradual, over a short distance, or stepped) can be achieved.

=== Related articles on Designing Buildings Wiki ===
*Concrete.
*Falsework.
*Formwork.
*Scaffolding.
*Temporary works.

'''External references'''

The Concrete Centre – [[www.concretecentre.com/technical_information/building_solutions/formwork/slip_form.aspx|Technical Information]]

[http://www.brighthubengineering.com/building-construction-design/123381-a-non-stop-method-for-building-concrete-structures/ Bright Hub Engineering]

[[Category:Construction_techniques]]