GB2471328A - A support assembly for a building block including spacers and a resilient member between the spacers - Google Patents

A support assembly for a building block including spacers and a resilient member between the spacers Download PDF

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Publication number
GB2471328A
GB2471328A GB0911073A GB0911073A GB2471328A GB 2471328 A GB2471328 A GB 2471328A GB 0911073 A GB0911073 A GB 0911073A GB 0911073 A GB0911073 A GB 0911073A GB 2471328 A GB2471328 A GB 2471328A
Authority
GB
United Kingdom
Prior art keywords
resilient member
building block
support assembly
assembly according
frame structure
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
GB0911073A
Other versions
GB0911073D0 (en
Inventor
Kevin Hewson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to GB0911073A priority Critical patent/GB2471328A/en
Publication of GB0911073D0 publication Critical patent/GB0911073D0/en
Publication of GB2471328A publication Critical patent/GB2471328A/en
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/14—Conveying or assembling building elements
    • E04G21/16—Tools or apparatus
    • E04G21/18—Adjusting tools; Templates
    • E04G21/1841—Means for positioning building parts or elements
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
    • E04B2/02—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls built-up from layers of building elements
    • E04B2/28—Walls having cavities between, but not in, the elements; Walls of elements each consisting of two or more parts kept in distance by means of spacers, all parts being solid
    • E04B2/30—Walls having cavities between, but not in, the elements; Walls of elements each consisting of two or more parts kept in distance by means of spacers, all parts being solid using elements having specially designed means for stabilising the position; Spacers for cavity walls
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
    • E04B2/56—Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members
    • E04B2/562—Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members with fillings between the load-bearing elongated members
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/07—Reinforcing elements of material other than metal, e.g. of glass, of plastics, or not exclusively made of metal
    • E04C5/073—Discrete reinforcing elements, e.g. fibres
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/14—Conveying or assembling building elements
    • E04G21/16—Tools or apparatus
    • E04G21/18—Adjusting tools; Templates
    • E04G21/1841—Means for positioning building parts or elements
    • E04G21/1883—Spacers, e.g. to have a constant spacing between courses of masonry
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
    • E04B2/02—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls built-up from layers of building elements
    • E04B2002/0256—Special features of building elements
    • E04B2002/028—Spacers between building elements
    • E04B2002/0282—Separate spacers

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Mechanical Engineering (AREA)
  • Floor Finish (AREA)

Abstract

A support assembly for a building block such as a cill or threshold member comprises a resilient member 2 and first and second spacer members which may comprise a frame structure 4 and 6. Resilient member 2 is an elastically deformable and flexible member arranged to absorb expansion and contraction of a building block placed on top of the support assembly. The spacers which may comprise frame structures may be formed from elongate members 8 and cross members 10. Cross members 10 comprise substantially Y-shaped spacer elements 14 for substantially bearing the load of a building block. The spacer members may also comprise a bonding material to bond to the building block. The resilient member 2 may be formed from expanded polyethylene foam.

Description

SUPPORT ASSELY FOR A BUILDING BLOCK
The present invention relates to a support assembly for a building block, and relates particularly, but not exclusively to a support assembly for a cill or threshold member.
Threshold members, cast stone and concrete cills are laid in brickwork or blockwork at the base of window apertures in buildings. Gills are relatively heavy because they are generally formed from concrete or stone. However, because the cills are typically heavy and dense they do not easily remove moisture from soft bonding material such as mortar.
One-piece cills are also susceptible to fracture in the event of thermal expansion or contraction or differential settlement during and after the construction process.
Consequently, it is desirable to only apply mortar to opposite end portions of the cill and leave a gap below the centre of the cill to allow for expansion and contraction of the cill. For this reason, British Standard code of practice for use of masonry (BS 8000-3; 2001) requires that only the ends of one-piece stone or concrete cills or thresholds are bedded in mortar.
However, if this standard requirement is followed and a mortar bed is only applied underneath the ends of the ciii, it is almost impossible to support the weight of the ciii during construction. Bricklayers will therefore frequently overlook this standard and apply a full mortar bed along the length of the cill. Once the mortar hardens, the ciii is susceptible to cracking because it cannot expand or contract enough.
Furthermore, laying a full bed of mortar underneath a cill can waste mortar. Bricklayers will frequently apply a larger amount of mortar than required. The mortar is then compressed and moved outwardly by the weight of the ciii. Some of the mortar then drops away from the joint and becomes waste.
Preferred embodiments of the present invention seek to
overcome the above disadvantages of the prior art.
According to an aspect of the present invention, there is provided a support assembly for a building block, the assembly comprising: first and second spacer members arranged to support opposite end portions of a building block to substantially bear the load of a building block in use when the support assembly is arranged underneath the building block; and a resilient member arranged in between said first and second spacer members.
This provides the advantage that when wet mortar is applied under the end portions of the building block, the rosilient member provides further support to the building block such that the extent to which the mortar is compressed is reduced.
Consequently, when the mortar hardens, the quality of the joint is improved.
This also provides the advantage that when the building block thermally expands or contracts or is subject to differential settlement; the resilient member can absorb some of the movement which reduces the likelihood of the building block cracking.
It should be understood that by "resilient", it is meant that the resilient member is capable of regaining its original shape or position after bending, stretching, compression or other deformation. The resilient member is a generally elastically deformable and flexible member.
Said first and/or second spacer members may comprise bonding material.
Said first and/or second spacer members may comprise a frame structure to enable bonding material to be applied around the frame structure and bond to the building block.
This provides the advantage of reinforcing the mortar joint and therefore reinforcing the structure of the masonry.
Said frame structure may comprise a plurality of elongate members arranged substantially parallel to a longitudinal axis of the support assembly, said plurality of elongate members projecting through the resilient member.
This provides the advantage of reinforcing the joint in which the support assembly is laid. Masonry at the corners of windows is particularly susceptible to cracking. The elongate members provide reinforcement to help prevent the cracking.
Said resilient member may comprise a plurality of elongate slits arranged to receive said plurality of elongate members.
This provides the advantage of a relatively straightforward method of mounting the elongate members in the resilient member.
Said frame structure may further comprise at least one cross member arranged to interconnect said plurality of elongate members.
At least said one cross member may comprise at least one spacer element arranged to support an end portion of said building block.
This provides the advantage of enabling the frame structure to bear the weight of the building block. This helps to prevent differential settlement of the structure during construction and also enables more courses of building blocks to be laid when mortar is wet than would be possible without the spacer elements.
Said frame structure may comprise at least one prong which is arranged to project into said resilient member to mount the frame structure to the resilient member.
This provides the advantage of a relatively straightforward method of mounting the frame structure to the resilient member.
In a preferred embodiment, at least one prong is serrated.
This provides the advantage of retaining the frame structure in engagement with the resilient member.
Said resilient member may be formed from expanding polyethylene foam.
This provides the advantage of a tough and versatile resilient member. Expanded polyethylene foam is substantially rot proof, non absorbent and has low load transfer properties.
In a preferred embodiment, said resilient member further comprises at least one peel off strip arranged along an edge thereof, removal of said peel off strip reducing the size of said resilient member.
This provides the advantage that the peel off strip can be removed, which reduces the width of the joint such that a sealant material can be laid along the portion where the peel off strip has been removed to seal the resilient member in the joint in a waterproof manner.
According to another embodiment of the present invention, there is provided a method of laying building blocks comprising: laying a support assembly as defined above; and laying a building block on top of said support assembly such that the resilient member is arranged underneath a central portion of said building block.
This provides the advantage of enabling a building block, such as a threshold member or cast cill, to be laid in a manner that will be less susceptible to deformation when the mortar is hardening. This also provides the advantage of enabling the building block to absorb movement and expansion or contraction in order to prevent cracking.
The step of laying a support assembly may comprise applying bonding material to said frame structure.
Preferred embodiments of the present invention will now be described, by way of example only and not in any limitative sense, with reference to the accompanying drawings, in which: Figure 1 is a plan view of a support assembly of a first embodiment of the present invention; :io Figure 2 is a plan view showing the assembly of one of the frame structures to resilient member of the support assembly of Figure 1; and Figure 3 is a side view of a joint in a building structure to which the support assembly of Figure 1 is incorporated.
Referring to Figures 1 and 2, a first embodiment of a support assembly is shown. The support assembly comprises a resilient member 2 and first and second spacer members which comprise frame structures 4 and 6.
Resilient member 2 is an elastically deformable and flexible member which may be formed from any material with such resilient properties. An example of such a material is expanded polyethylene foam, and more particularly closed cell expanded polyethylene foam. Resilient member 2 is generally rectangular in configuration and has a height substantially corresponding to the height of a mortar joint between the courses of brickwork in a building. Resilient member 2 comprises peel off strips 9 which can be peeled off to reduce the width of the resilient member 2 to enable sealant to be applied to seal a joint as will be explained below.
First and second spacer members comprise frame structures 4 and 6 which are formed from elongate members 8 and cross members 10. Elongate members 8 are preferably formed from a material having sufficient strength to reinforce a mortar joint, such as stainless steel. Cross members 10 are formed from for example injection moulded plastic. Cross members 10 are interlinked by joint member 12 and also comprise prongs 14 which are arranged to project into corresponding bores (not shown) formed in resilient member 2. Prongs 14 may be serrated to retain the prongs in the resilient member.
Cross members 10 also comprise substantially 1-shaped spacer elements 14. As shown in Figure 3, spacer elements 14 are arranged to support the load of a building block 22 arranged on top of the support assembly. Spacer elements 14 are integrally formed with the frame structures 4 and 6. Spacer elements 14 also comprise keyhole slots 15 to enable the cross members 10 to be clipped on to elongate members 8 during assembly for mounting to the resilient member 2.
Resilient member 2 comprises elongate slits (not shown) formed in edges 3 and 5. The elongate slits are cut to a depth sufficient to allow elongate members 8 to project through the resilient member 2 (as shown in broken lines in Figures 1 and 2) . It should be understood that elongate members 8 are optional and can be left out if a lower strength joint is required.
Referring to Figure 3, the method of laying a building block such as a threshold member or cast ciii using the support assembly of Figure 1 will be described.
* .:.,.._........t..._. . . . -. . * . . -Firstly, the support assembly is laid on top of a course of bricks 20 on which a cill 22 is to be laid. Mortar 24 is then applied to the frame structures 4 and 6. The cill 22 is then laid on top of the support assembly. It can be seen that spacer elements 14 bear the load of cill 22 and transfer this load to the course of bricks below 20. The resilient member 2 also bears some of the load of cill 22.
The resilient member 2 is able to deform and is therefore able to absorb expansion or contraction or other movement of cill 22. Peel off strips 9 can then be removed and a sealant material (not shown) applied to the edge of resilient member 2 to waterproof the joint. As a result of the support assembly, a bricklayer will not be tempted to lay mortar 24 along the length of the underside of cill 22 which when set, could cause cracking of the cill or threshold member 22.
In a second embodiment of the invention, the first and second spacer members comprise only mortar joints 24 laid underneath either end portion of the cill 22. A resilient member 2 placed in between the mortar joints 24. In effect, in this embodiment there are no frame structures 4 and 6. This embodiment still has the advantage of the resilient member both providing support to the cill 22 during setting of the mortar and also being able to absorb movements and expansion or contraction of the cill 22.
It will be appreciated by persons skilled in the art that the above embodiments have been described by way of example only and not in any limitative sense, and that various alterations and modifications are possible without departure from the scope of the invention as defined by the appended claims.

Claims (15)

  1. Claims 1. A support assembly for a building block, the assembly comprising: first and second spacer members arranged to support opposite end portions of a building block to substantially bear the load of a building block in use when the support assembly is arranged underneath the building block; and a resilient member arranged in between said first and second spacer members.
  2. 2. An assembly according to claim 1, wherein said first and/or second spacer members comprise bonding material.
  3. 3. An assembly according to claim 1 or 2, wherein said first and/or second spacer members comprise a frame structure to enable bonding material to be applied around the frame structure and bond to the building block.
  4. 4. An assembly according to claim 3, wherein said frame structure comprises a plurality of elongate members arranged substantially parallel to a longitudinal axis of the support assembly, said plurality of elongate members projecting through the resilient member.
  5. 5. An assembly according to claim 4, wherein said resilient member comprises a plurality of elongate slits arranged to receive said plurality of elongate members.
  6. 6. An assembly according to claim 4 or 5, wherein said frame structure further comprises at least one cross member arranged to interconnect said plurality of elongate members.
  7. 7. An assembly according to claim 6, wherein at least one said cross member comprises at least one spacer element arranged to support an end portion of said building block.
  8. 8. An assembly according to any one of claims 3 to 7, wherein said frame structure further comprises at least one prong which is arranged to project into said resilient member to mount the frame structure to the resilient member.
  9. 9. An assembly according to claim 8, wherein at least one prong is serrated.
  10. 10. An assembly according to any one of the preceding claims, wherein said resilient member is formed from expanded polyethylene foam.
  11. 11. An assembly according to any one of the preceding claims, wherein said resilient member further comprises at least one peel off strip arranged along an edge thereof, removal of said peel off strip reducing the size of said resilient member.
  12. 12. A support assembly for supporting a building block, the support assembly substantially as hereinbefore described with reference to the accompanying drawings.
  13. 13. A method of laying building blocks comprising: laying a support assembly according to any one of the preceding claims; and laying a building block on top of said support assembly such that the resilient member is arranged underneath a central portion of said building block.
  14. 14. A method according to claim 13, wherein the step of laying a support assembly comprises applying bonding material to said frame structure.
  15. 15. A method of laying building blocks substantially as hereinbefore described with reference to the accompanying drawings.
GB0911073A 2009-06-26 2009-06-26 A support assembly for a building block including spacers and a resilient member between the spacers Withdrawn GB2471328A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0911073A GB2471328A (en) 2009-06-26 2009-06-26 A support assembly for a building block including spacers and a resilient member between the spacers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0911073A GB2471328A (en) 2009-06-26 2009-06-26 A support assembly for a building block including spacers and a resilient member between the spacers

Publications (2)

Publication Number Publication Date
GB0911073D0 GB0911073D0 (en) 2009-08-12
GB2471328A true GB2471328A (en) 2010-12-29

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GB0911073A Withdrawn GB2471328A (en) 2009-06-26 2009-06-26 A support assembly for a building block including spacers and a resilient member between the spacers

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10041248B1 (en) * 2017-02-09 2018-08-07 Orial Nir Construction assembly and method for laying blocks

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1228579A (en) * 1967-10-30 1971-04-15
GB1474266A (en) * 1973-06-19 1977-05-18 Thomas R Block constructions
WO2005080707A1 (en) * 2004-02-20 2005-09-01 George Moore Apparatus for spacing building blocks
US20060070336A1 (en) * 2004-09-23 2006-04-06 Roberts Ernest A Spacers for use in masonry wall

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1228579A (en) * 1967-10-30 1971-04-15
GB1474266A (en) * 1973-06-19 1977-05-18 Thomas R Block constructions
WO2005080707A1 (en) * 2004-02-20 2005-09-01 George Moore Apparatus for spacing building blocks
US20060070336A1 (en) * 2004-09-23 2006-04-06 Roberts Ernest A Spacers for use in masonry wall

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10041248B1 (en) * 2017-02-09 2018-08-07 Orial Nir Construction assembly and method for laying blocks

Also Published As

Publication number Publication date
GB0911073D0 (en) 2009-08-12

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