How to layout a building - Revision history

Designing Buildings: Reverted edits by Transeptia (talk) to last revision by Designing Buildings

2023-04-29T14:09:21Z

Reverted edits by Transeptia (talk) to last revision by Designing Buildings

← Older revision		Revision as of 14:09, 29 April 2023
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−	[[File:Works-~~g14fff2d5a_1280.jpg\|link=File:Works-g14fff2d5a_1280~~.jpg]]	+	[[File:Works-g14fff2d5a 1280.jpg]]

	= What is setting out? =		= What is setting out? =
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	* Surveying instruments.		* Surveying instruments.
	* Surveyor.		* Surveyor.
−	* [https://www.transeptia.com/interior-designing-decorating-makeover Interior Designing]

	= External references =		= External references =

Transeptia at 08:29, 29 April 2023

2023-04-29T08:29:40Z

← Older revision		Revision as of 08:29, 29 April 2023
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−	[[File:Works-~~g14fff2d5a 1280~~.jpg]]	+	[[File:Works-g14fff2d5a_1280.jpg\|link=File:Works-g14fff2d5a_1280.jpg]]

	= What is setting out? =		= What is setting out? =
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	* Surveying instruments.		* Surveying instruments.
	* Surveyor.		* Surveyor.
		+	* [https://www.transeptia.com/interior-designing-decorating-makeover Interior Designing]

	= External references =		= External references =

Designing Buildings at 08:52, 11 November 2022

2022-11-11T08:52:01Z

← Older revision		Revision as of 08:52, 11 November 2022
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		+	[[File:Works-g14fff2d5a 1280.jpg]]
		+
	= What is setting out? =		= What is setting out? =

Designing Buildings at 08:47, 11 November 2022

2022-11-11T08:47:35Z

← Older revision		Revision as of 08:47, 11 November 2022
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−	= ~~Introduction~~ =	+	= What is setting out? =

−	Setting out a building is the process of transferring ~~architectural~~ proposals from drawings ~~into~~ the ground. It establishes the location points for site boundaries, foundations, columns, centre-lines of walls and other necessary structural parts. ~~Also, it~~ establishes the buiding's correct extent, angle and level~~. The whole structure will be located and erected according to the initial setting out~~.	+	Setting out a building is the process of transferring design proposals from drawings onto the ground. It establishes the location points for site boundaries, foundations, columns, centre-lines of walls and other necessary structural parts. It also establishes the buiding's correct extent, angle and level.

−	Accurate setting out is therefore a fundamental part of ~~the~~ construction works, and errors can be very expensive and time consuming to correct. It should only be undertaken by competent persons, and all work should be thoroughly checked, preferably by different personnel.	+	The whole structure will be located and constructed according to the initial setting out. Accurate setting out is therefore a fundamental part of construction works, and errors can be very expensive and time consuming to correct. It should only be undertaken by competent persons, and all work should be thoroughly checked, preferably by different personnel before construction begins.

−	Setting out is usually undertaken once the site has been subject to a condition survey and desk study, and has been cleared of any debris, unwanted vegetation or obstructions. Works necessary to create required levels may also have been completed before the ~~layout~~ process begins.	+	Setting out is usually undertaken once the site has been subject to a condition survey and desk study, and has been cleared of any debris, unwanted vegetation or other obstructions. Works necessary to create the required levels may also have been completed before the setting out process begins.

−	The position and orientation of the structure is generally described in architect's or engineer’s drawings ~~and~~ defining precisely how the layout should be arranged.	+	The position and orientation of the structure is generally described in an architect's or engineer’s drawings, defining precisely how the layout should be arranged. Controlling dimensions and references on the plans will determine the positioning of the building, and in particular its foundations. These include; overall length and width, distances to road centre-lines and to other structures, internal structural measurements and so on.

−	~~Controlling dimensions and references on~~ the ~~plans will determine~~ the ~~positioning~~ of the ~~building~~, and ~~in particular its foundations. These include; overall length and width~~, ~~distances to road centre-~~lines ~~and to other structures~~, ~~internal structural measurements~~, ~~approaches~~ and ~~rights~~-~~of-way~~ and ~~so on~~.	+	The controlling points of the structure can then be marked so that the construction team can easily identify them. This usually consists of marking the building’s corners, horizontal and vertical positions, using stakes, batter boards with string lines, drill holes, cut-and-fill notations, and other methods.

−	~~The controlling points of the structure can then be marked so that the construction team~~ is able to easily identify them. This usually consists of marking the building’s corners, horizontal and vertical positions, using stakes, batter boards with string lines, drill holes, cut-and-fill notations, and other methods.	+	= What is a temporary bench mark (TBM)? =

−	~~=== Temporary Bench Mark (TBM) ===~~	+	A temporary bench mark is a fixed point with a known elevation, usually ground floor level. This should be established at an early stage. It is the fixed point to which all levels are related. Where possible the TBM should relate to an ordnance bench mark. On the site, it could relate to any permanent fixture, such as a manhole cover or firmly-driven post. Typically, it is signified by a peg or steel angle that is conveniently located (eg near the site office) and concreted in or fenced off with low-level timber.
−		+
−	A temporary bench mark is a fixed point with a known elevation, usually ground floor level. ~~Establishing it~~ should be ~~undertaken~~ at an early stage. It is the fixed point ~~which kicks-off the setting out and~~ to which all levels are related. Where possible the TBM should relate to an ordnance bench mark. On the site, it could relate to any permanent fixture, such as a manhole cover or firmly-driven post. Typically, it is signified by a peg or steel angle that is conveniently located (eg near the site office) and concreted in or fenced off with low-level ~~timberwork~~.	+

	As minus signs are easily misread, the TBM position should enable all other levels to be positive. The TBM should be clearly indicated on all drawings, with all levels and vertical dimensions expressed in metres to three decimal places in relation to it.		As minus signs are easily misread, the TBM position should enable all other levels to be positive. The TBM should be clearly indicated on all drawings, with all levels and vertical dimensions expressed in metres to three decimal places in relation to it.

−	=~~== Baseline ==~~=	+	= What is the baseline? =

	Typically the first layout task is establishing a baseline to which all the setting out can be related. The baseline is a straight reference line in respect to which the building’s corners are located on the ground. It often coincides with the ‘building line’, which is the boundary of the area, or the outer boundary of a road or curb, often demarcated by the local authority.		Typically the first layout task is establishing a baseline to which all the setting out can be related. The baseline is a straight reference line in respect to which the building’s corners are located on the ground. It often coincides with the ‘building line’, which is the boundary of the area, or the outer boundary of a road or curb, often demarcated by the local authority.

−	=== Horizontal controls ===	+	= Horizontal controls =

−	~~These~~ are ~~the~~ points that have known coordinates with respect to a specific point. Other points such as layout corners can then be located. Numerous control points should be used so that each point of the plan can be precisely located on the ground.	+	Horizontal controls are points that have known coordinates with respect to a specific point. Other points such as layout corners can then be located. Numerous control points should be used so that each point on the plan can be precisely located on the ground.

−	=== Vertical controls ===	+	= Vertical controls =

−	~~These~~ enable design points to be positioned at their correct levels. The vertical control points are established relative to specified vertical datum – often a timber post set in concrete. But it can also be a specific height from a nearby road or land feature.	+	Vertical controls enable design points to be positioned at their correct levels. The vertical control points are established relative to specified vertical datum – often a timber post set in concrete. But it can also be a specific height from a nearby road or land feature.

−	Horizontal and vertical controls are generally established during the levelling phase using a theodolite or similar instrument~~. For more information, see Surveying instruments~~.	+	Horizontal and vertical controls are generally established during the levelling phase using a theodolite or similar instrument.

	Levels on site-layout plans should be denoted in metres to three decimal places, eg 32.350. Also, intended levels should be written in a box, while existing levels can be written normally. An 'x' or '+' should be used on plans to denote the exact point to which a level applies		Levels on site-layout plans should be denoted in metres to three decimal places, eg 32.350. Also, intended levels should be written in a box, while existing levels can be written normally. An 'x' or '+' should be used on plans to denote the exact point to which a level applies
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	The corners of walls are transferred from intersecting cord lines to mortar spots on the concrete foundations, using a spirit level for accuracy.		The corners of walls are transferred from intersecting cord lines to mortar spots on the concrete foundations, using a spirit level for accuracy.

−	Th cutting of trenches needs to be undertaken with great care, especially if they are to be left open for an extended period as there is the possibility of the sides caving in.	+	The cutting of trenches needs to be undertaken with great care, especially if they are to be left open for an extended period as there is the possibility of the sides caving in.

	= Reduced level excavations =		= Reduced level excavations =
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	The layout of the grid is established using a theodolite and the grid intersections marked using pegs. Once the grid has been set out, offset pegs or profiles can be fixed clear of any subsequent excavation work. Control of excavation depth can be by means of a traveller sighted between sight rails or by level and staff related to a site datum.		The layout of the grid is established using a theodolite and the grid intersections marked using pegs. Once the grid has been set out, offset pegs or profiles can be fixed clear of any subsequent excavation work. Control of excavation depth can be by means of a traveller sighted between sight rails or by level and staff related to a site datum.

−	= Related articles on Designing Buildings ~~Wiki~~ =	+	= Related articles on Designing Buildings =

	* Building survey.		* Building survey.
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	* Surveyor.		* Surveyor.

−	= External ~~resources~~ =	+	= External references =

	* CivilEBlog - [http://www.civileblog.com/building-layout/ Building layout]		* CivilEBlog - [http://www.civileblog.com/building-layout/ Building layout]

136.158.48.229 at 04:06, 19 January 2022

2022-01-19T04:06:52Z

← Older revision		Revision as of 04:06, 19 January 2022
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	=== Temporary Bench Mark (TBM) ===		=== Temporary Bench Mark (TBM) ===

−	A temporary bench mark is a fixed point with a known elevation, usually ground floor level. Establishing it should be undertaken at an early stage. It is the fixed point which kicks-off the setting out and to which all levels are related. Where possible the TBM should relate to an ordnance bench mark. On the site, it could relate to any permanent fixture, such as a manhole cover or firmly-driven post. Typically, it is signified by a peg or steel angle that is ~~coveniently~~ located (eg near the site office) and concreted in or fenced off with low-level timberwork.	+	A temporary bench mark is a fixed point with a known elevation, usually ground floor level. Establishing it should be undertaken at an early stage. It is the fixed point which kicks-off the setting out and to which all levels are related. Where possible the TBM should relate to an ordnance bench mark. On the site, it could relate to any permanent fixture, such as a manhole cover or firmly-driven post. Typically, it is signified by a peg or steel angle that is conveniently located (eg near the site office) and concreted in or fenced off with low-level timberwork.

	As minus signs are easily misread, the TBM position should enable all other levels to be positive. The TBM should be clearly indicated on all drawings, with all levels and vertical dimensions expressed in metres to three decimal places in relation to it.		As minus signs are easily misread, the TBM position should enable all other levels to be positive. The TBM should be clearly indicated on all drawings, with all levels and vertical dimensions expressed in metres to three decimal places in relation to it.

Designing Buildings: Reverted edits by 67.230.59.82 (talk) to last revision by Designing Buildings

2021-04-27T05:45:54Z

Reverted edits by 67.230.59.82 (talk) to last revision by Designing Buildings

Can't load revision 202078

at 04:12, 27 April 2021

2021-04-27T04:12:34Z

Can't load revision 202076

Designing Buildings at 06:53, 30 August 2020

2020-08-30T06:53:37Z

← Older revision		Revision as of 06:53, 30 August 2020
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	* 'Building Construction Handbook' (6th ed.). CHUDLEY, R., GREENO, R., Butterworth & Heinemann (2007)		* 'Building Construction Handbook' (6th ed.). CHUDLEY, R., GREENO, R., Butterworth & Heinemann (2007)

−	[[Category:~~Standards_/_measurements~~]] [[Category:~~DCN_Standard~~]] [[Category:Construction_techniques]] [[Category:Roles_/_services]]	+	[[Category:DCN_Guidance]] [[Category:DCN_Project_Knowledge]] [[Category:Standards_/_measurements]] [[Category:Construction_techniques]] [[Category:Roles_/_services]]

Editor at 19:22, 8 August 2019

2019-08-08T19:22:53Z

Editor at 19:01, 8 August 2019

2019-08-08T19:01:30Z

← Older revision		Revision as of 19:01, 8 August 2019
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	Accurate setting out is therefore a fundamental part of the construction works, and errors can be very expensive and time consuming to correct. It should only be undertaken by competent persons, and all work should be thoroughly checked, preferably by different personnel.		Accurate setting out is therefore a fundamental part of the construction works, and errors can be very expensive and time consuming to correct. It should only be undertaken by competent persons, and all work should be thoroughly checked, preferably by different personnel.

−	Setting out is usually undertaken once the site has been subject to a condition survey and desk study, and has been cleared of any debris or obstructions. Works necessary to create required levels may also have been completed before the layout process begins.	+	Setting out is usually undertaken once the site has been subject to a condition survey and desk study, and has been cleared of any debris, unwanted vegetation or obstructions. Works necessary to create required levels may also have been completed before the layout process begins.

	The position and orientation of the structure is generally described in architect's or engineer’s drawings and defining precisely how the layout should be arranged.		The position and orientation of the structure is generally described in architect's or engineer’s drawings and defining precisely how the layout should be arranged.
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	=== Temporary Bench Mark (TBM) ===		=== Temporary Bench Mark (TBM) ===

−	A temporary bench mark is a fixed point with a known elevation. Establishing it should be undertaken at an early stage. It is the fixed point that kicks-off the setting out and to which all levels are related. Where possible the TBM should relate to an ordnance bench mark. On the site, it could relate to any permanent fixture, such as a manhole cover or firmly-driven post. As minus signs are easily misread, the TBM should ~~ensure that~~ all other levels ~~are~~ positive. The TBM should be clearly indicated on all drawings, with all levels and vertical dimensions expressed in metres to three decimal places in relation to it.	+	A temporary bench mark is a fixed point with a known elevation. Establishing it should be undertaken at an early stage. It is the fixed point that kicks-off the setting out and to which all levels are related. Where possible the TBM should relate to an ordnance bench mark. On the site, it could relate to any permanent fixture, such as a manhole cover or firmly-driven post. As minus signs are easily misread, the TBM position should enable all other levels to be positive. The TBM should be clearly indicated on all drawings, with all levels and vertical dimensions expressed in metres to three decimal places in relation to it.

	=== Baseline ===		=== Baseline ===
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	=== Horizontal controls ===		=== Horizontal controls ===

−	These are the points that have known coordinates with respect to a specific point. Other points such as layout corners can then be located. ~~Plenty of~~ control points should be used so that each point of the plan can be precisely located on the ground.	+	These are the points that have known coordinates with respect to a specific point. Other points such as layout corners can then be located. Numerous control points should be used so that each point of the plan can be precisely located on the ground.

	=== Vertical controls ===		=== Vertical controls ===

−	These enable design points to be positioned at their correct levels. The vertical control points are established relative to specified vertical datum – often a timber post set in concrete. But it can also be a specific height from a nearby road or land feature	+	These enable design points to be positioned at their correct levels. The vertical control points are established relative to specified vertical datum – often a timber post set in concrete. But it can also be a specific height from a nearby road or land feature.

	Horizontal and vertical controls are generally established during the levelling phase using a theodolite or similar instrument. For more information, see Surveying instruments.		Horizontal and vertical controls are generally established during the levelling phase using a theodolite or similar instrument. For more information, see Surveying instruments.

−	Levels on site layout plans should be denoted in metres to three decimal places, eg 32.350. Also, intended levels should be ~~placed~~ in a box, while exisiting levels can be written normally. An 'x' should be used on plans to denote the exact point to which a level applies	+	Levels on site layout plans should be denoted in metres to three decimal places, eg 32.350. Also, intended levels should be written in a box, while exisiting levels can be written normally. An 'x' or '+' should be used on plans to denote the exact point to which a level applies

	= Building layout =		= Building layout =

−	For a simple building layout, such as a rectangle, the outline of the building is marked by line tied to corner posts - a nail in the top of the post can be used to attach the line to. A theodolite, site square or builder’s square is used to turn off 90-degree angles for the remaining corners. Ranging rods may be required to establish a straight line between corner posts.	+	For a simple building layout, such as a rectangle, the outline of the building is marked by a line tied to corner posts - a nail in the top of the post can be used to attach the line to. A theodolite, site square or builder’s square is used to turn off 90-degree angles for the remaining corners. Ranging rods may be required to establish a straight line between corner posts.

−	Corner posts are usually 50 x 50 mm timber posts driven firmly into the ground, with a nail in the post’s centre. The outline may be marked on the ground with dry lime or similar powder. Timber profile boards can be used at the corners. Profile boards are typically between 0.6-~~1 m~~ in height and comprise two 50 x ~~50 mm~~ posts driven at least ~~600 mm~~ into the ground, with a 150 x ~~38 mm~~ crossboard.	+	Corner posts are usually 50 x 50 mm timber posts driven firmly into the ground, with a nail in the post’s centre. The outline may be marked on the ground with dry lime or similar powder. Timber profile boards can be used at the corners. Profile boards are typically between 0.6-1m in height and comprise two 50 x 50mm posts driven at least 600mm into the ground, with a 150 x 38mm crossboard.

	Where the outline of a building is more complex than a simple rectangle, it may be necessary to establish a range of points in the same way as for laying out a simple rectangle. However, great care is required, as small errors are more likely to be introduced as more points are positioned. Often the easiest way of laying out an irregular building shape is to first lay out a large rectangle which will enclose the entire building or the greater part of it. Once this is done, deductions and alterations can be made to obtain the precise layout required.		Where the outline of a building is more complex than a simple rectangle, it may be necessary to establish a range of points in the same way as for laying out a simple rectangle. However, great care is required, as small errors are more likely to be introduced as more points are positioned. Often the easiest way of laying out an irregular building shape is to first lay out a large rectangle which will enclose the entire building or the greater part of it. Once this is done, deductions and alterations can be made to obtain the precise layout required.
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	The corners of walls are transferred from intersecting cord lines to mortar spots on the concrete foundations using a spirit level for accuracy.		The corners of walls are transferred from intersecting cord lines to mortar spots on the concrete foundations using a spirit level for accuracy.
		+
		+	Th cutting of trenches needs to be undertaken with great care, especially if they are to be left open for an extended period as there is the possibility of the sides caving in.

	= Reduced level excavations =		= Reduced level excavations =

← Older revision		Revision as of 19:22, 8 August 2019
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	=== Temporary Bench Mark (TBM) ===		=== Temporary Bench Mark (TBM) ===

−	A temporary bench mark is a fixed point with a known elevation. Establishing it should be undertaken at an early stage. It is the fixed point ~~that~~ kicks-off the setting out and to which all levels are related. Where possible the TBM should relate to an ordnance bench mark. On the site, it could relate to any permanent fixture, such as a manhole cover or firmly-driven post. As minus signs are easily misread, the TBM position should enable all other levels to be positive. The TBM should be clearly indicated on all drawings, with all levels and vertical dimensions expressed in metres to three decimal places in relation to it.	+	A temporary bench mark is a fixed point with a known elevation, usually ground floor level. Establishing it should be undertaken at an early stage. It is the fixed point which kicks-off the setting out and to which all levels are related. Where possible the TBM should relate to an ordnance bench mark. On the site, it could relate to any permanent fixture, such as a manhole cover or firmly-driven post. Typically, it is signified by a peg or steel angle that is coveniently located (eg near the site office) and concreted in or fenced off with low-level timberwork.
		+
		+	As minus signs are easily misread, the TBM position should enable all other levels to be positive. The TBM should be clearly indicated on all drawings, with all levels and vertical dimensions expressed in metres to three decimal places in relation to it.

	=== Baseline ===		=== Baseline ===
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	Horizontal and vertical controls are generally established during the levelling phase using a theodolite or similar instrument. For more information, see Surveying instruments.		Horizontal and vertical controls are generally established during the levelling phase using a theodolite or similar instrument. For more information, see Surveying instruments.

−	Levels on site layout plans should be denoted in metres to three decimal places, eg 32.350. Also, intended levels should be written in a box, while ~~exisiting~~ levels can be written normally. An 'x' or '+' should be used on plans to denote the exact point to which a level applies	+	Levels on site-layout plans should be denoted in metres to three decimal places, eg 32.350. Also, intended levels should be written in a box, while existing levels can be written normally. An 'x' or '+' should be used on plans to denote the exact point to which a level applies

	= Building layout =		= Building layout =
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	For a simple building layout, such as a rectangle, the outline of the building is marked by a line tied to corner posts - a nail in the top of the post can be used to attach the line to. A theodolite, site square or builder’s square is used to turn off 90-degree angles for the remaining corners. Ranging rods may be required to establish a straight line between corner posts.		For a simple building layout, such as a rectangle, the outline of the building is marked by a line tied to corner posts - a nail in the top of the post can be used to attach the line to. A theodolite, site square or builder’s square is used to turn off 90-degree angles for the remaining corners. Ranging rods may be required to establish a straight line between corner posts.

−	Corner posts are usually 50 x ~~50 mm~~ timber posts driven firmly into the ground, with a nail in the post’s centre. The outline may be marked on the ground with dry lime or similar powder. Timber profile boards can be used at the corners. Profile boards are typically between 0.6-1m in height and comprise two 50 x 50mm posts driven at least 600mm into the ground, with a 150 x 38mm crossboard.	+	Corner posts are usually 50 x 50mm timber posts driven firmly into the ground, with a nail in the post’s centre. The outline may be marked on the ground with dry lime or similar powder. Timber profile boards can be used at the corners. Profile boards are typically between 0.6-1m in height and comprise two 50 x 50mm posts driven at least 600mm into the ground, with a 150 x 38mm crossboard.

	Where the outline of a building is more complex than a simple rectangle, it may be necessary to establish a range of points in the same way as for laying out a simple rectangle. However, great care is required, as small errors are more likely to be introduced as more points are positioned. Often the easiest way of laying out an irregular building shape is to first lay out a large rectangle which will enclose the entire building or the greater part of it. Once this is done, deductions and alterations can be made to obtain the precise layout required.		Where the outline of a building is more complex than a simple rectangle, it may be necessary to establish a range of points in the same way as for laying out a simple rectangle. However, great care is required, as small errors are more likely to be introduced as more points are positioned. Often the easiest way of laying out an irregular building shape is to first lay out a large rectangle which will enclose the entire building or the greater part of it. Once this is done, deductions and alterations can be made to obtain the precise layout required.
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	The layout of trenches establishes the excavation size, shape and direction, as well as the width and position of walls. Trenches are excavated once the building outline has been set out. The width is often marked with a line of dots of dry lime powder for accurate excavation by hand, whereas the centre line is marked for accurate machine excavation.		The layout of trenches establishes the excavation size, shape and direction, as well as the width and position of walls. Trenches are excavated once the building outline has been set out. The width is often marked with a line of dots of dry lime powder for accurate excavation by hand, whereas the centre line is marked for accurate machine excavation.

−	Outline profile boards are often used to control trench positioning, width and depth. In order that they do not obstruct the excavation work, profile boards should be set up at least ~~2 m~~ clear of the trench positions. The level of the profile crossboard should be related to the site datum and fixed at a convenient height above ground level, often with cords strung between two profiles at either end of the trench. Bands can be painted on the crossboard for identification purposes.	+	Outline profile boards are often used to control trench positioning, width and depth. In order that they do not obstruct the excavation work, profile boards should be set up at least 2m clear of the trench positions. The level of the profile crossboard should be related to the site datum and fixed at a convenient height above ground level, often with cords strung between two profiles at either end of the trench. Bands can be painted on the crossboard for identification purposes.

	Pegs are often driven into the bottom of the trench to mark the top of the concrete strip that is subsequently poured.		Pegs are often driven into the bottom of the trench to mark the top of the concrete strip that is subsequently poured.

−	The corners of walls are transferred from intersecting cord lines to mortar spots on the concrete foundations using a spirit level for accuracy.	+	The corners of walls are transferred from intersecting cord lines to mortar spots on the concrete foundations, using a spirit level for accuracy.

	Th cutting of trenches needs to be undertaken with great care, especially if they are to be left open for an extended period as there is the possibility of the sides caving in.		Th cutting of trenches needs to be undertaken with great care, especially if they are to be left open for an extended period as there is the possibility of the sides caving in.
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	* 'Building Construction Handbook' (6th ed.). CHUDLEY, R., GREENO, R., Butterworth & Heinemann (2007)		* 'Building Construction Handbook' (6th ed.). CHUDLEY, R., GREENO, R., Butterworth & Heinemann (2007)

−	[[Category:Standards_/_measurements]] [[Category:Construction_techniques]] [[Category:Roles_/_services]]	+	[[Category:Standards_/_measurements]] [[Category:DCN_Standard]] [[Category:Construction_techniques]] [[Category:Roles_/_services]]