CA1066475A - Member for use in building construction - Google Patents
Member for use in building constructionInfo
- Publication number
- CA1066475A CA1066475A CA277,017A CA277017A CA1066475A CA 1066475 A CA1066475 A CA 1066475A CA 277017 A CA277017 A CA 277017A CA 1066475 A CA1066475 A CA 1066475A
- Authority
- CA
- Canada
- Prior art keywords
- joists
- wall
- strip
- top edge
- wall form
- 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.)
- Expired
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
- E04B5/02—Load-carrying floor structures formed substantially of prefabricated units
- E04B5/023—Separate connecting devices for prefabricated floor-slabs
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E04C2003/023—Lintels
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E04C2003/026—Braces
Abstract
ABSTRACT OF THE DISCLOSURE:
A member for use in building construction. The member comprises a strip of material having pockets in which the ends of an array of floor joists, to be embedded in concrete, are inserted. Wall sections of the strips, between the pockets, form blocking between the joists, spaced inwardly from the joist ends.
A member for use in building construction. The member comprises a strip of material having pockets in which the ends of an array of floor joists, to be embedded in concrete, are inserted. Wall sections of the strips, between the pockets, form blocking between the joists, spaced inwardly from the joist ends.
Description
1066~75 The present invention relates to a member for use in building construction.
In frame building construction, particularly frame house construction, one common method of construction involves partly embedding the ends of the floor joists in the top of the concrete foundation wall rather than mounting them on top of the wall to a plate fixed on the wall. To so embed the joists in the wall, the joists are normally set up in their desired final position before pouring the foundation wall. In such final position, the ends of the joists are supported by the foundation wall forms. The ends of the joists normally rest on, and can be attached to, the top edge of the inner foundation wall form which top edge is slightly below the top edge of the outer foundation wall form. The space between the joists, above the top edge of the inner form, is closed with blocking to effecti-vely extend the height of the inner form to the top of, or above, the outer form. Concrete is then poured into space between the forms to the height of the outer form, thus effectively embedding the ends of the joists within the top of the foundation wall.
ZO To cut, fit and fasten the blocking between the joists is a labour intensive job, ahd thus expensive. It is the purpose of the present invention to provide a single member which replaces a plurality of blocks used for the blocking and eliminates much of the labour involved, thus reducing costs.
In accordance with the present invention, there is provided a member for use in the construction of a frame build-ing in which the ends of an array of equally spaced-apart joists are embedded in a concrete foundation wall poured between an inner wall form on which are placed the ends of the joists to be embedded, and an outer wall form higher than the inner wall form. This member consists of an integral strip of plastic material formed with a plurality of equally spaced-apart, pocket-shaped sections for receiving and positioning the ends of the E~ ~
1066~75 joists, and a plurality of equally spaced-apart, wall-shaped sections extending between the pocket-shaped sections in align-ment with the inner wall form in order to extend the top edge of the same at last to the height of the top edge of the outer wall form.
Of course, the strip has a wall thickness large enough to support wet concrete poured above the top edge of the inner wall form up to the height of the top edge of the outer wall form.
The invention will now be described in detail having reference to the accompanying drawings in which:
fig. 1 is a schematic detail view of a building under construction;
fig. 2 is a cross-section view of the formwork shown in fig. l;
fig. 3 is a cross-section view similar to fig. 2 after the concrete has been poured and the formwork removed;
fig. 4 appearing on the same sheet of d~awings as fig. 1, is a schematic view of the foundation wall with the embedded joists; and fig. 5 is a detail schematic view of the strip member of the present invention.
The construction device 1 shown in fig. 5, is parti-cularly adapted for use in the construction of frame buildings where certain of the frame members are partially embedded in concrete. In this type of construction, a concrete foundation wall for a building is poured with the joist members, forming the floor of the building placed on the foundation wall forms in such a position as to end up partially embedded in the con-crete wall to be supported thereby.
As shown, in part, in figs. 1, 2 and 3, inner and outer forms 3, 5 for the concrete foundation wall "W" are constructed first. Each form 3, 5 normally comprises boards or sheets 7 of plywood fastened to vertical spaced-apart supports _~ _ ;,~
1C~66475 9. The concrete is poured in the space 11 between the smooth inner surfaces of the form boards 7, The supports 9, on the outside surfaces of the form boards 7, are fixed to the footings 13 of the building and the supports 9 of one form 3 ar~ j ined /
2a -1066~75 to the supports 9 of the other form 5 by wire form ties 15 as is well known. The top edge 17 of the inner form 3 is slightly lower, by several inches, than the top edge 19 of the outer form 5.
An array 21 of floor joists 23 are assembled on the forms 3, 5 before the concrete is poured. The floor joists 23 are provided to support the floor of the building. One end 25 of each joist 23 is positioned above the space 11, about midway between the forms 3, 5, so that the joist is supported on the top edge 17 of the inner form. Theotherinner end 27 of each joist 23 can be supported by a central beam 29, as shown in fig. 4, itself mounted on the inner form wall. The inner end 27 of each joist can be joined to the inner end 27 of an opposing joist on beam 2~ as is known.
In prior art construction, each space between adjacent joists 23, above the top edge 17 of inner form 3, would be filled with a block of wood joined to the joists 23. This blocking serves to rigidly position the joists and also extends the height of inner orm 3 to, or above, the top edge 19 of the outer form 5.
Then, when concrete is poured to the height of top edge 19 of outer form 5, the bottom corners 31 of the joists become embedded in the concrete wall. As previously mentioned however, the cutting, fitting, and fastening of the blocking is quite time consuming and thus expensive in terms of labour.
In accordance with this embodiment of the invention, the construction device 1 in the form of a strip 35 of material is employed to replace the blocking. The s~trip 35 of material, as shown in figs. 1 and 5, has spaced-apart wall sections 37, each section sized to extend between adjacent joists 23 when placed the desired distance apart. Sections 39 are provided on the strip 35, for joining the wall sections 37 together. These joining sections 39 cooperate with the joists to properly position the wall sections 37 between the joists. When properly 1066~75 positioned, the wall sections 37 are aligned and perpendicular to the joists 23. In addition, the wall sections 37 rest on the top edge 17 of inner form 3 to extend the inner form upwardly.
The joining sections 39 consist of a plurality of spaced-apart, rectilinear pockets 41 formed in the strip between the wall sections 37 with the bottom wall 43 of each pocket receiving the end edge 25 of each joist 23. In setting up the array 21 of joists 23 on the beam 29 and the top edge 17 of inner form 3 the pocketed strip 35 can be used to space the joists the proper distance apart and with the ends 25 properly positioned past inner form 3 so that the joists end up embedded the desired length. The strip 35 can be attached to each joist 23 with a nail 45 driven into the end 25 of each joist through the bottom wall 43 of the pocket. The strip 35 preferably has a height equal to the depth of the joists being used.
The strip 35 can be moulded from suitable thermoplastic material, having a wall thickness large enough to support wet concrete between forms 3, 5 to a height of the top edge 19 of form 5. The strip can be made in several heights equal to the standard depths of the joists normally used in construction, and withthe pockets spaced-apart one of several standard joist spacings. The strip can also be made in one or more standard lengths with the lengths easily cut to fit.
After the concrete has been poured forming wall "W", the inner and outer forms 3, S are removed leaving the corners of the joists embedded therein as shown in fig. 3. The blocking strip 35 can be removed as well, or left in place, as desired.
It will be seen that the strip 35 greatly simplifies the assembly of the joists and the provision of blocking when the joists are to be embedded.
In frame building construction, particularly frame house construction, one common method of construction involves partly embedding the ends of the floor joists in the top of the concrete foundation wall rather than mounting them on top of the wall to a plate fixed on the wall. To so embed the joists in the wall, the joists are normally set up in their desired final position before pouring the foundation wall. In such final position, the ends of the joists are supported by the foundation wall forms. The ends of the joists normally rest on, and can be attached to, the top edge of the inner foundation wall form which top edge is slightly below the top edge of the outer foundation wall form. The space between the joists, above the top edge of the inner form, is closed with blocking to effecti-vely extend the height of the inner form to the top of, or above, the outer form. Concrete is then poured into space between the forms to the height of the outer form, thus effectively embedding the ends of the joists within the top of the foundation wall.
ZO To cut, fit and fasten the blocking between the joists is a labour intensive job, ahd thus expensive. It is the purpose of the present invention to provide a single member which replaces a plurality of blocks used for the blocking and eliminates much of the labour involved, thus reducing costs.
In accordance with the present invention, there is provided a member for use in the construction of a frame build-ing in which the ends of an array of equally spaced-apart joists are embedded in a concrete foundation wall poured between an inner wall form on which are placed the ends of the joists to be embedded, and an outer wall form higher than the inner wall form. This member consists of an integral strip of plastic material formed with a plurality of equally spaced-apart, pocket-shaped sections for receiving and positioning the ends of the E~ ~
1066~75 joists, and a plurality of equally spaced-apart, wall-shaped sections extending between the pocket-shaped sections in align-ment with the inner wall form in order to extend the top edge of the same at last to the height of the top edge of the outer wall form.
Of course, the strip has a wall thickness large enough to support wet concrete poured above the top edge of the inner wall form up to the height of the top edge of the outer wall form.
The invention will now be described in detail having reference to the accompanying drawings in which:
fig. 1 is a schematic detail view of a building under construction;
fig. 2 is a cross-section view of the formwork shown in fig. l;
fig. 3 is a cross-section view similar to fig. 2 after the concrete has been poured and the formwork removed;
fig. 4 appearing on the same sheet of d~awings as fig. 1, is a schematic view of the foundation wall with the embedded joists; and fig. 5 is a detail schematic view of the strip member of the present invention.
The construction device 1 shown in fig. 5, is parti-cularly adapted for use in the construction of frame buildings where certain of the frame members are partially embedded in concrete. In this type of construction, a concrete foundation wall for a building is poured with the joist members, forming the floor of the building placed on the foundation wall forms in such a position as to end up partially embedded in the con-crete wall to be supported thereby.
As shown, in part, in figs. 1, 2 and 3, inner and outer forms 3, 5 for the concrete foundation wall "W" are constructed first. Each form 3, 5 normally comprises boards or sheets 7 of plywood fastened to vertical spaced-apart supports _~ _ ;,~
1C~66475 9. The concrete is poured in the space 11 between the smooth inner surfaces of the form boards 7, The supports 9, on the outside surfaces of the form boards 7, are fixed to the footings 13 of the building and the supports 9 of one form 3 ar~ j ined /
2a -1066~75 to the supports 9 of the other form 5 by wire form ties 15 as is well known. The top edge 17 of the inner form 3 is slightly lower, by several inches, than the top edge 19 of the outer form 5.
An array 21 of floor joists 23 are assembled on the forms 3, 5 before the concrete is poured. The floor joists 23 are provided to support the floor of the building. One end 25 of each joist 23 is positioned above the space 11, about midway between the forms 3, 5, so that the joist is supported on the top edge 17 of the inner form. Theotherinner end 27 of each joist 23 can be supported by a central beam 29, as shown in fig. 4, itself mounted on the inner form wall. The inner end 27 of each joist can be joined to the inner end 27 of an opposing joist on beam 2~ as is known.
In prior art construction, each space between adjacent joists 23, above the top edge 17 of inner form 3, would be filled with a block of wood joined to the joists 23. This blocking serves to rigidly position the joists and also extends the height of inner orm 3 to, or above, the top edge 19 of the outer form 5.
Then, when concrete is poured to the height of top edge 19 of outer form 5, the bottom corners 31 of the joists become embedded in the concrete wall. As previously mentioned however, the cutting, fitting, and fastening of the blocking is quite time consuming and thus expensive in terms of labour.
In accordance with this embodiment of the invention, the construction device 1 in the form of a strip 35 of material is employed to replace the blocking. The s~trip 35 of material, as shown in figs. 1 and 5, has spaced-apart wall sections 37, each section sized to extend between adjacent joists 23 when placed the desired distance apart. Sections 39 are provided on the strip 35, for joining the wall sections 37 together. These joining sections 39 cooperate with the joists to properly position the wall sections 37 between the joists. When properly 1066~75 positioned, the wall sections 37 are aligned and perpendicular to the joists 23. In addition, the wall sections 37 rest on the top edge 17 of inner form 3 to extend the inner form upwardly.
The joining sections 39 consist of a plurality of spaced-apart, rectilinear pockets 41 formed in the strip between the wall sections 37 with the bottom wall 43 of each pocket receiving the end edge 25 of each joist 23. In setting up the array 21 of joists 23 on the beam 29 and the top edge 17 of inner form 3 the pocketed strip 35 can be used to space the joists the proper distance apart and with the ends 25 properly positioned past inner form 3 so that the joists end up embedded the desired length. The strip 35 can be attached to each joist 23 with a nail 45 driven into the end 25 of each joist through the bottom wall 43 of the pocket. The strip 35 preferably has a height equal to the depth of the joists being used.
The strip 35 can be moulded from suitable thermoplastic material, having a wall thickness large enough to support wet concrete between forms 3, 5 to a height of the top edge 19 of form 5. The strip can be made in several heights equal to the standard depths of the joists normally used in construction, and withthe pockets spaced-apart one of several standard joist spacings. The strip can also be made in one or more standard lengths with the lengths easily cut to fit.
After the concrete has been poured forming wall "W", the inner and outer forms 3, S are removed leaving the corners of the joists embedded therein as shown in fig. 3. The blocking strip 35 can be removed as well, or left in place, as desired.
It will be seen that the strip 35 greatly simplifies the assembly of the joists and the provision of blocking when the joists are to be embedded.
Claims (4)
1. A member for use in the construction of a frame building in which the ends of an array of equally spaced-apart joists are embedded in a concrete foundation wall poured between an inner wall form on which are placed the ends of the joists to be embedded, and an outer wall form higher than the inner wall form, said member consisting of an integral strip of plastic material formed with a plurality of equally spaced-apart, pocket-shaped sections for receiving and positioning the ends of the joists, and a plurality of equally spaced-apart, wall-shaped sections extending between the pocket-shaped sections in alignment with the inner wall form in order to extend the top edge of the same at least to the height of the top edge of the outer wall form, said strip having a wall thickness large enough to support wet concrete poured above the top edge of the inner wall form up to the height of the top edge of the outer wall form.
2. A member as claimed in claim 1 wherein the pocket-shaped sections are rectilinear.
3. A member as claimed in claim 2, wherein the strip has a height equal to the height of the joists.
4. A member as claimed in claim 1, 2 or 3, wherein the strip is made of thermoplastic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA277,017A CA1066475A (en) | 1977-04-26 | 1977-04-26 | Member for use in building construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA277,017A CA1066475A (en) | 1977-04-26 | 1977-04-26 | Member for use in building construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1066475A true CA1066475A (en) | 1979-11-20 |
Family
ID=4108503
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA277,017A Expired CA1066475A (en) | 1977-04-26 | 1977-04-26 | Member for use in building construction |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1066475A (en) |
-
1977
- 1977-04-26 CA CA277,017A patent/CA1066475A/en not_active Expired
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