CA1235561A - Curtain wall - Google Patents
Curtain wallInfo
- Publication number
- CA1235561A CA1235561A CA000469228A CA469228A CA1235561A CA 1235561 A CA1235561 A CA 1235561A CA 000469228 A CA000469228 A CA 000469228A CA 469228 A CA469228 A CA 469228A CA 1235561 A CA1235561 A CA 1235561A
- Authority
- CA
- Canada
- Prior art keywords
- curtain wall
- metallic
- pressure plate
- panels
- wall
- 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
- 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
- E04B2/88—Curtain walls
- E04B2/96—Curtain walls comprising panels attached to the structure through mullions or transoms
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Load-Bearing And Curtain Walls (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
The invention concerns the use of pressure plates made of non-electrically conductive material of low thermal conductivity in a curtain wall which covers the exterior face of a building structure. These pressure plates serve to attach panels, such as window panes or the like, to a metallic (for example, alumi-num) structural framework and to attach thereon metallic (for example copper) exterior trim profiles.
The non-conductive pressure plates act as separators between the exterior trim profiles and the structural framework to avoid electrochemical corrosion which would otherwise occur if these two metallic elements were of different metals and in direct contact. The low thermal conductivity of the pressure plates serves as a thermal barrier to limit heat flow from the interior to the exterior in the winter, and vice versa in the summer.
The invention concerns the use of pressure plates made of non-electrically conductive material of low thermal conductivity in a curtain wall which covers the exterior face of a building structure. These pressure plates serve to attach panels, such as window panes or the like, to a metallic (for example, alumi-num) structural framework and to attach thereon metallic (for example copper) exterior trim profiles.
The non-conductive pressure plates act as separators between the exterior trim profiles and the structural framework to avoid electrochemical corrosion which would otherwise occur if these two metallic elements were of different metals and in direct contact. The low thermal conductivity of the pressure plates serves as a thermal barrier to limit heat flow from the interior to the exterior in the winter, and vice versa in the summer.
Description
~;~3~56~
FIELD OF THE INVENTION
The present invention pertains to a curtain wall covering the exterior face of a building strikeout-no.
BACKGROUND OF THE INVENTION
A curtain wall is usually formed of a supporting framework mounted to the building structure (such as floors) and of panels, such as window units, mounted to the supporting framework by means of pressure plates which carry ornamenting metallic covers and trim profiles. The pressure plates and the trim profiles are usually made of aluminum extrusion and are attached to a tubular aluminum framework. In cases where it is desirable to assemble in this assembly two metals of a different nature, some separation material is required between the two metals otherwise, electrochernical corrosion will occur. For example, it is known to use an epoxy resin glue to secure these components together, the glue acting as a separator between the different metals. However, this is an expensive complex procedure. As a result of the bond-in of the two metals which have different physical properties such as expansion, contraction under tempo-nature changes, structural problems can occur, such as distortion of the trim profiles thus rendering them unusable as they often fall off the supporting lo :~3556~L
framework.
Another disadvantage of the present curtain wall assembly is the necessity of adding a low thermal conductivity material to act as a separator between the pressure plates and the inner metallic components of the curtain wall for insulation purposes.
OBJECTS AND STATEMENT OF THE INVENTION
It is an object of the present invention to provide a curtain wall for covering the exterior face of a building which avoids the above-mentioned pro-bless. This is achieved by inserting pressure plates of non-conductive material between the supporting framework and the metallic cover trims.
The present invention therefore relates to a curtain wall which comprises:
- metallic framework means mounted to the structure of the building;
- pressure plate means secured to the metal-fig framework means in space relationship therewith to define spacing areas there between;
- one or more panels having peripheral edges thereof mounted in the spacing areas between the metal-fig framework means and the pressure plate means, the pressure plate means firmly engaging the peripheral edges to secure the panels to the framework means; and - metallic covering means mounted to the ~35~
pressure plate means, the latter being made of non-electroconductive material to thereby avoid electron chemical corrosion otherwise susceptible to occur bet-wren the framework means and the covering means when made of heterogeneous metals.
In one form of the invention, the pressure plate means are defined by an elongated channel element with side walls having grooves in which the coverings are engaged.
Other objects and further scope of applicabi-lily of the present invention will become apparent from the detailed description given hereinafter. It should be understood, however, that this detailed description, while indicating preferred embodiments of the invent lion, is given by way of illustration only since various changes and modifications, within the spirit and scope of the invention, will become apparent to those skilled in the art.
BRIEF DESCRIPTION OF THE DRAWINGS
For a better understanding of the present invention, reference is had to the following descrip-lion taken in connection with the accompanying drawings in which:
Figure 1 is a horizontal cross-section of a curtain wall made in accordance with the present invent lion;
;~3S56~
Figure 2 is a vertical cross-sectional view of another curtain wall made in accordance with the present invention.
DESCRIPTION OF PREFERRED EMBODIMENTS
Referring to figures 1 and 2 of the drawings, the main components of a curtain wall assembly embo-dying the present invention are shown in sections. To the front end of a floor slab, generally denoted 10, of a building structure, is mounted a steel anchor 12 in the form of an angle iron having an armature 14 anchor-Ed in the concrete material of the slab. A second angle iron 16 is fastened to the anchor 12 by means of a bolt 18. To the vertical portion of the angle iron 16 is attached an element 20 forming part of the framework attached to the building through appropriate fastening means that include a reinforcing anchorage 22, a spacer 24 and a bolt 26. In the present embody-mint, the framework element 20 is defined by a rectangular-shaped hollow member having an integral frontward projecting portion 28. A plurality of vertically spaced fastening elements, such as screws 30, extend through a pressure plate 32, the threaded portion of the screws being engaged in the elongated ridged channel of the projecting portion 28 of the framework element 20. The screws force the pressure plate 32 in abutment with the front face of the 5~6~
projecting portion 28.
In the embodiment illustrated the pressure plate 32 and the metallic element 20 define between them a spacing area in which are received the peripheral edges of panels, such as the double-glazed window units 34 and 36 shown. The peripheral edges of these panels are secured in place by means of a pair of rubber gaskets 38 and 40, 42 and 44 which are respectively engaged in grooves provided in the rear wall of pressure plate 32 and in the front face of the framework element 20. Also, an air seal 46, 48, is provided between the window-panes and the framework element 20.
The pressure plate has two frontwardly ox-tending side walls which may be short projections 50 and 52 as shown in full lines or longer as shown by dotted lines 54 and 56. Each side wall has an elongated groove into which are engagedly received end portions of the coverings 58.
The use of copper is increasingly popular in the decorative arrangement given to the outside faces of buildings. However, as the metallic framework elements 20 are made of aluminum, direct contact between elements 20 and elements 58 will, in an electrolyte medium (caused by rain for example), cause an electrochemical reaction resulting in corrosion of ~35~6~' these metallic elements. By making the pressure plates 30 of non-electroconductive material, these metallic components are no longer in contact with one another.
One preferred material for the pressure plates is fiber reinforced plastics. Furthermore, the use of a material of low thermal conductivity for the pressure plate increases the insulative value of the curtain wall and avoids the use of a thermal separator which in convent tonal curtain walls, is a separate element located between the pressure plate and the structural frame-work.
Although the invention has been described above with respect to one form of the invention, it will be evident to persons skilled in the art that it may be refined and modified in various ways. For example, the side walls of the pressure plates may have various configurations to receive trims or coverings of varying shapes, such as coverings opened at their front most face allowing the side walls with their coverings to serve as guide rails to receive rollers of window-washing platforms. It is therefore wished to have it understood that the present invention should not be limited into interpretation except by the terms of the following claims.
FIELD OF THE INVENTION
The present invention pertains to a curtain wall covering the exterior face of a building strikeout-no.
BACKGROUND OF THE INVENTION
A curtain wall is usually formed of a supporting framework mounted to the building structure (such as floors) and of panels, such as window units, mounted to the supporting framework by means of pressure plates which carry ornamenting metallic covers and trim profiles. The pressure plates and the trim profiles are usually made of aluminum extrusion and are attached to a tubular aluminum framework. In cases where it is desirable to assemble in this assembly two metals of a different nature, some separation material is required between the two metals otherwise, electrochernical corrosion will occur. For example, it is known to use an epoxy resin glue to secure these components together, the glue acting as a separator between the different metals. However, this is an expensive complex procedure. As a result of the bond-in of the two metals which have different physical properties such as expansion, contraction under tempo-nature changes, structural problems can occur, such as distortion of the trim profiles thus rendering them unusable as they often fall off the supporting lo :~3556~L
framework.
Another disadvantage of the present curtain wall assembly is the necessity of adding a low thermal conductivity material to act as a separator between the pressure plates and the inner metallic components of the curtain wall for insulation purposes.
OBJECTS AND STATEMENT OF THE INVENTION
It is an object of the present invention to provide a curtain wall for covering the exterior face of a building which avoids the above-mentioned pro-bless. This is achieved by inserting pressure plates of non-conductive material between the supporting framework and the metallic cover trims.
The present invention therefore relates to a curtain wall which comprises:
- metallic framework means mounted to the structure of the building;
- pressure plate means secured to the metal-fig framework means in space relationship therewith to define spacing areas there between;
- one or more panels having peripheral edges thereof mounted in the spacing areas between the metal-fig framework means and the pressure plate means, the pressure plate means firmly engaging the peripheral edges to secure the panels to the framework means; and - metallic covering means mounted to the ~35~
pressure plate means, the latter being made of non-electroconductive material to thereby avoid electron chemical corrosion otherwise susceptible to occur bet-wren the framework means and the covering means when made of heterogeneous metals.
In one form of the invention, the pressure plate means are defined by an elongated channel element with side walls having grooves in which the coverings are engaged.
Other objects and further scope of applicabi-lily of the present invention will become apparent from the detailed description given hereinafter. It should be understood, however, that this detailed description, while indicating preferred embodiments of the invent lion, is given by way of illustration only since various changes and modifications, within the spirit and scope of the invention, will become apparent to those skilled in the art.
BRIEF DESCRIPTION OF THE DRAWINGS
For a better understanding of the present invention, reference is had to the following descrip-lion taken in connection with the accompanying drawings in which:
Figure 1 is a horizontal cross-section of a curtain wall made in accordance with the present invent lion;
;~3S56~
Figure 2 is a vertical cross-sectional view of another curtain wall made in accordance with the present invention.
DESCRIPTION OF PREFERRED EMBODIMENTS
Referring to figures 1 and 2 of the drawings, the main components of a curtain wall assembly embo-dying the present invention are shown in sections. To the front end of a floor slab, generally denoted 10, of a building structure, is mounted a steel anchor 12 in the form of an angle iron having an armature 14 anchor-Ed in the concrete material of the slab. A second angle iron 16 is fastened to the anchor 12 by means of a bolt 18. To the vertical portion of the angle iron 16 is attached an element 20 forming part of the framework attached to the building through appropriate fastening means that include a reinforcing anchorage 22, a spacer 24 and a bolt 26. In the present embody-mint, the framework element 20 is defined by a rectangular-shaped hollow member having an integral frontward projecting portion 28. A plurality of vertically spaced fastening elements, such as screws 30, extend through a pressure plate 32, the threaded portion of the screws being engaged in the elongated ridged channel of the projecting portion 28 of the framework element 20. The screws force the pressure plate 32 in abutment with the front face of the 5~6~
projecting portion 28.
In the embodiment illustrated the pressure plate 32 and the metallic element 20 define between them a spacing area in which are received the peripheral edges of panels, such as the double-glazed window units 34 and 36 shown. The peripheral edges of these panels are secured in place by means of a pair of rubber gaskets 38 and 40, 42 and 44 which are respectively engaged in grooves provided in the rear wall of pressure plate 32 and in the front face of the framework element 20. Also, an air seal 46, 48, is provided between the window-panes and the framework element 20.
The pressure plate has two frontwardly ox-tending side walls which may be short projections 50 and 52 as shown in full lines or longer as shown by dotted lines 54 and 56. Each side wall has an elongated groove into which are engagedly received end portions of the coverings 58.
The use of copper is increasingly popular in the decorative arrangement given to the outside faces of buildings. However, as the metallic framework elements 20 are made of aluminum, direct contact between elements 20 and elements 58 will, in an electrolyte medium (caused by rain for example), cause an electrochemical reaction resulting in corrosion of ~35~6~' these metallic elements. By making the pressure plates 30 of non-electroconductive material, these metallic components are no longer in contact with one another.
One preferred material for the pressure plates is fiber reinforced plastics. Furthermore, the use of a material of low thermal conductivity for the pressure plate increases the insulative value of the curtain wall and avoids the use of a thermal separator which in convent tonal curtain walls, is a separate element located between the pressure plate and the structural frame-work.
Although the invention has been described above with respect to one form of the invention, it will be evident to persons skilled in the art that it may be refined and modified in various ways. For example, the side walls of the pressure plates may have various configurations to receive trims or coverings of varying shapes, such as coverings opened at their front most face allowing the side walls with their coverings to serve as guide rails to receive rollers of window-washing platforms. It is therefore wished to have it understood that the present invention should not be limited into interpretation except by the terms of the following claims.
Claims (10)
1. A curtain wall for covering the exterior face of a building structure comprising:
- metallic framework means mounted to said building structure;
- pressure plate means secured to said metallic framework means in space relationship there-with to define spacing areas there between;
- one or more panels having peripheral edges thereof mounted in said spacing areas between said metallic framework means and said pressure plate means; said pressure plate means firmly engaging said peripheral edges to secure said panels to said frame-work means; and - metallic covering means supported on said pressure plate means;
- said pressure plate means being made of non-electroconductive material to thereby avoid electrochemical corrosion otherwise susceptible to occur between said framework means and said covering means when made of heterogeneous metals.
- metallic framework means mounted to said building structure;
- pressure plate means secured to said metallic framework means in space relationship there-with to define spacing areas there between;
- one or more panels having peripheral edges thereof mounted in said spacing areas between said metallic framework means and said pressure plate means; said pressure plate means firmly engaging said peripheral edges to secure said panels to said frame-work means; and - metallic covering means supported on said pressure plate means;
- said pressure plate means being made of non-electroconductive material to thereby avoid electrochemical corrosion otherwise susceptible to occur between said framework means and said covering means when made of heterogeneous metals.
2. A curtain wall as defined in claim 1, wherein said metallic framework means include outwardly projecting portions and wherein said pressure plate means consist of elongated channel elements, each having an inner wall abutting said projecting portions and opposite side walls adapted to engagedly receive therein said metallic covering means.
3. A curtain wall as defined in claim 2, further comprising fastening means at spaced intervals along said inner wall and extending through said inner wall to be engaged in elongated recesses in said projecting portions.
4. A curtain wall as defined in claim 2, wherein said side walls are provided with grooves on the outer face thereof to engagedly receive therein said metallic covering means.
5. A curtain wall as defined in claim 2, wherein elongated grooves are provided in said inner wall on the rear face thereof; gasket means engaged in said grooves and contacting the peripheral edges of said panels.
6. A curtain wall as defined in claim 1, wherein said metallic framework means are made of aluminum and said metallic covering means are made of copper.
7. A curtain wall as defined in claim 1, wherein said panels are glazing units.
8. A curtain wall as defined in claim 7, further comprising sealant means between said metallic framework means and said panels.
9. A curtain wall as defined in claim 8, wherein said metallic framework means include elongated grooves thereon adjacent said spacing areas; gasket means received in said elongated grooves and contacting the peripheral edges of said panels.
10. A curtain wall as defined in claim 1, wherein said pressure plate means are made of fiber re-inforced plastic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000469228A CA1235561A (en) | 1984-12-03 | 1984-12-03 | Curtain wall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000469228A CA1235561A (en) | 1984-12-03 | 1984-12-03 | Curtain wall |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1235561A true CA1235561A (en) | 1988-04-26 |
Family
ID=4129293
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000469228A Expired CA1235561A (en) | 1984-12-03 | 1984-12-03 | Curtain wall |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1235561A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0399778A1 (en) * | 1989-05-23 | 1990-11-28 | H.H. Robertson (U.K.) Limited | Improvements in and relating to curtain walls and the like |
| WO2005047603A1 (en) * | 2003-11-13 | 2005-05-26 | William Dale Bourke | Protection against electrolytic or galvanic corrosion in pontoons or piers |
| US8578671B2 (en) | 2009-05-19 | 2013-11-12 | Groupe Lessard Inc. | Pressure plate assembly for curtain wall panels |
| US8745957B2 (en) | 2012-04-11 | 2014-06-10 | King Saud University | Induced macro-cell corrosion prevention method |
-
1984
- 1984-12-03 CA CA000469228A patent/CA1235561A/en not_active Expired
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0399778A1 (en) * | 1989-05-23 | 1990-11-28 | H.H. Robertson (U.K.) Limited | Improvements in and relating to curtain walls and the like |
| WO2005047603A1 (en) * | 2003-11-13 | 2005-05-26 | William Dale Bourke | Protection against electrolytic or galvanic corrosion in pontoons or piers |
| AU2006100205B4 (en) * | 2003-11-13 | 2009-12-17 | William Dale Bourke | Improvements in the Manufacture of Pontoons and Piers |
| AU2003262204B2 (en) * | 2003-11-13 | 2011-01-20 | Pacific Pontoon & Pier (Holdings) Pty Ltd | Improvements in the Manufacture of Pontoons and Piers |
| AU2003262204C1 (en) * | 2003-11-13 | 2011-08-04 | Pacific Pontoon & Pier (Holdings) Pty Ltd | Improvements in the Manufacture of Pontoons and Piers |
| US8578671B2 (en) | 2009-05-19 | 2013-11-12 | Groupe Lessard Inc. | Pressure plate assembly for curtain wall panels |
| US8745957B2 (en) | 2012-04-11 | 2014-06-10 | King Saud University | Induced macro-cell corrosion prevention method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4387542A (en) | Integrated window and wall system | |
| US4167598A (en) | Heat and sound insulating panel | |
| US3703063A (en) | Profile member for windows, doors, facades, or the like | |
| US4640072A (en) | Multipart thermally insulated metal profile for facade structures or roof structures | |
| KR100652129B1 (en) | Sheath type curtain wall system having an adiabatic structure using a gasket | |
| US20190194939A1 (en) | Window and curtain wall mullions, transoms and systems | |
| US4686805A (en) | Panel support | |
| GB2067230A (en) | Profile bar | |
| US3217455A (en) | Building construction of modular panels | |
| US4433517A (en) | Window assembly | |
| CA1235561A (en) | Curtain wall | |
| US3319388A (en) | Wall constructions | |
| US11230845B2 (en) | Building exterior panel and assembly structure thereof | |
| CN113167099A (en) | Frame assembly | |
| KR200343575Y1 (en) | A.I.R-Beam : Assemble Insert Rail-Beam | |
| CN210658767U (en) | External wall insulation board structure | |
| EP3314065B1 (en) | Curtain wall mullions, transoms and systems | |
| WO1991018157A1 (en) | Glazed structure system | |
| CN210797995U (en) | Assembled construction is with stone curtain wall | |
| GB2029879A (en) | Dual window assembly | |
| CA1139156A (en) | Dual window assembly | |
| GB2179974A (en) | Curtain walling system | |
| EP0489189A1 (en) | Method for the sheathing of buildings by means of double glass façade panels | |
| CN214739227U (en) | Silver-gray metal coating building material color steel plate | |
| CN218492750U (en) | Fireproof extrusion molding insulation board with clamping type anti-edge warping function |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |