CA1166469A - Corrugated steel decking section - Google Patents
Corrugated steel decking sectionInfo
- Publication number
- CA1166469A CA1166469A CA000378256A CA378256A CA1166469A CA 1166469 A CA1166469 A CA 1166469A CA 000378256 A CA000378256 A CA 000378256A CA 378256 A CA378256 A CA 378256A CA 1166469 A CA1166469 A CA 1166469A
- Authority
- CA
- Canada
- Prior art keywords
- crest
- sloping
- decking
- groove
- valley
- 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
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 61
- 239000010959 steel Substances 0.000 title claims abstract description 61
- 230000000994 depressogenic effect Effects 0.000 claims abstract description 4
- 238000007373 indentation Methods 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims 1
- 239000002131 composite material Substances 0.000 description 9
- 238000010276 construction Methods 0.000 description 6
- 230000002089 crippling effect Effects 0.000 description 5
- 239000011324 bead Substances 0.000 description 3
- 230000003466 anti-cipated effect Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000009435 building construction Methods 0.000 description 2
- 230000001413 cellular effect Effects 0.000 description 2
- 229910001335 Galvanized steel Inorganic materials 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000010960 cold rolled steel Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009408 flooring Methods 0.000 description 1
- 239000008397 galvanized steel Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Installation Of Indoor Wiring (AREA)
- Rod-Shaped Construction Members (AREA)
Abstract
ABSTRACT
Improved corrugated steel decking of the type having plural crest surfaces, plural valley surfaces and plural sloping web surfaces connecting each crest surface to the adjoining valley surface. An inwardly depressed groove is provided in each of the sloping web surfaces adjacent to the crest surface.
Improved corrugated steel decking of the type having plural crest surfaces, plural valley surfaces and plural sloping web surfaces connecting each crest surface to the adjoining valley surface. An inwardly depressed groove is provided in each of the sloping web surfaces adjacent to the crest surface.
Description
--" I 166~B9 Innproved ~orrugated Steel Decking Section This invention relates to improved corrugated steel decking sections of the type which are used to construct floors of modern buildings.
Corrugated steel decking has been employed as a construction component for buildings for many years. The corrugated steel decking is fastened to the steel framework of a building and constitutes a membrane surface for each floor of a building and serves as a permanent form for subsequently applied concrete. ~hroughout the life of the building the concrete serves as the walking surface for each floor. In the early building construction days, the steel decking served merely to support and shape the wet concrete until it was hardened; consequently the steel decking was not considered as contributing to the strength of the resulting building floor.
Subsequently, variations in the surfaces and profiles of the steel decking section permitted the interengagement of concrete and the steel decking section whereby the concrete and steel acted compositely in the resulting building floor. The steel decking could be taken into consideration for its contribution as a tensile stress-resisting component and the concrete could be employed for its compressive stress-resisting characteristics. In such composite floor buildings, both the concrete and steel contribute to the ultimate load carrying capability of the building floor.
In order to combine the steel and the concrete as described, indentations, embossments, grooves, ribs and other ~ 166~69 physical deformations of the corrugated steel decking have been introduced to achieve mechanical interferences with the subsequently poured wet concrete and thereby to assure a positive bonding between the steel decking and the hardened concrete.
~ 11 of the prior art composite steel decking sections experience a number of shortcomings.
~ ny composite steel decking experiences three distinct phases of its life history. In the first phase of the life history of the steel decking, the decking is secured to a structural building framework usually horizontal steel beams which extend between vertical steel columns. The decking sections are assembled in side-by-side relation and engaged with lateral connecting means. The decking sections are secured, usually by welding, to the horizontal beams and serve as a walking surface for various trades in the building construction prior to the pouring of wet concrete on top of the assembled decking sections to establish the building floor. During this first phase, the steel decking sections constitute the only available structural component upon which workmen ma~ walk and move construction vehicles. The steel decking must possess sufficient strength to support the weight of the workmen and anticipated construction traffic.
During the first phase, while the steel decking is in`position and before the wet concrete has been poured, the prior art steel decking is susceptible to serious damage which may result from localized impact loads when workmen tread heavily upon corners of the decking or when workmen drop heavy construction tools on the decking.
1 166~B~
In the second phase of the lifetime of the steel decking, wet concrete is poured over the entire surface of each floor. The wet concrete makes no contribution to the load-carrying capability of the resulting floor. Accordingly, during the second phase of its lifetime, the steel decking must carry not only its own weight but also the weight of the wet concrete. The ability of steel decking to sustain the load of wet concrete has been characteri2ed as the "wet strength" of the decking. Where the "wet strength" of the decking is inadequate to sustain the weight of wet concrete over the span, it is customary to provide props or shoring to supplement the load-carrying capability of the decking.
The inconvenience and expense of such shoring has been a serious shortcoming of many prior art steel decking sections.
The third phase of the life of the steel decking commences after the wet concrete has hardened and the hardened concrete is combined with the steel decking as a composite floor structure. During this third phase, a good mechanical bond exists between the hardened concrete and the steel decking.
The present invention concerns an improvement in corrugated steel decking which includes plural crest surfaces, plural valley surfaces and plural sloping web surfaces con-necting the edges of each crest surface to the adjacent valley surface. I provide a lengthwise, uninterrupted groove along the length of the decking section near the top of each sloping web surface. Each groove enters beneath the crest surface.
1. The decking has an improved impact resistance since the groove provides resistance to top flange corner buckling. Thus the decking is less susceptible to damage ~ 166~6~
during its first phase from dropped construction tools or from construction traffic.
Corrugated steel decking has been employed as a construction component for buildings for many years. The corrugated steel decking is fastened to the steel framework of a building and constitutes a membrane surface for each floor of a building and serves as a permanent form for subsequently applied concrete. ~hroughout the life of the building the concrete serves as the walking surface for each floor. In the early building construction days, the steel decking served merely to support and shape the wet concrete until it was hardened; consequently the steel decking was not considered as contributing to the strength of the resulting building floor.
Subsequently, variations in the surfaces and profiles of the steel decking section permitted the interengagement of concrete and the steel decking section whereby the concrete and steel acted compositely in the resulting building floor. The steel decking could be taken into consideration for its contribution as a tensile stress-resisting component and the concrete could be employed for its compressive stress-resisting characteristics. In such composite floor buildings, both the concrete and steel contribute to the ultimate load carrying capability of the building floor.
In order to combine the steel and the concrete as described, indentations, embossments, grooves, ribs and other ~ 166~69 physical deformations of the corrugated steel decking have been introduced to achieve mechanical interferences with the subsequently poured wet concrete and thereby to assure a positive bonding between the steel decking and the hardened concrete.
~ 11 of the prior art composite steel decking sections experience a number of shortcomings.
~ ny composite steel decking experiences three distinct phases of its life history. In the first phase of the life history of the steel decking, the decking is secured to a structural building framework usually horizontal steel beams which extend between vertical steel columns. The decking sections are assembled in side-by-side relation and engaged with lateral connecting means. The decking sections are secured, usually by welding, to the horizontal beams and serve as a walking surface for various trades in the building construction prior to the pouring of wet concrete on top of the assembled decking sections to establish the building floor. During this first phase, the steel decking sections constitute the only available structural component upon which workmen ma~ walk and move construction vehicles. The steel decking must possess sufficient strength to support the weight of the workmen and anticipated construction traffic.
During the first phase, while the steel decking is in`position and before the wet concrete has been poured, the prior art steel decking is susceptible to serious damage which may result from localized impact loads when workmen tread heavily upon corners of the decking or when workmen drop heavy construction tools on the decking.
1 166~B~
In the second phase of the lifetime of the steel decking, wet concrete is poured over the entire surface of each floor. The wet concrete makes no contribution to the load-carrying capability of the resulting floor. Accordingly, during the second phase of its lifetime, the steel decking must carry not only its own weight but also the weight of the wet concrete. The ability of steel decking to sustain the load of wet concrete has been characteri2ed as the "wet strength" of the decking. Where the "wet strength" of the decking is inadequate to sustain the weight of wet concrete over the span, it is customary to provide props or shoring to supplement the load-carrying capability of the decking.
The inconvenience and expense of such shoring has been a serious shortcoming of many prior art steel decking sections.
The third phase of the life of the steel decking commences after the wet concrete has hardened and the hardened concrete is combined with the steel decking as a composite floor structure. During this third phase, a good mechanical bond exists between the hardened concrete and the steel decking.
The present invention concerns an improvement in corrugated steel decking which includes plural crest surfaces, plural valley surfaces and plural sloping web surfaces con-necting the edges of each crest surface to the adjacent valley surface. I provide a lengthwise, uninterrupted groove along the length of the decking section near the top of each sloping web surface. Each groove enters beneath the crest surface.
1. The decking has an improved impact resistance since the groove provides resistance to top flange corner buckling. Thus the decking is less susceptible to damage ~ 166~6~
during its first phase from dropped construction tools or from construction traffic.
2. The effective length of each sloping web sur-face is shortened, and, as a result, the web crippling strength of the steel decking is increased. This feature increases the wet strength of the steel decking in phase two.
3. The grooves establish an excellent bond between the concrete and the steel decking in the region of the decking crest surfaces where the shear stresses between the concrete and the steel decking are maximized. This feature increases the load carrying capability of the resulting composite flooring in phase three.
4. A further benefit arises in those instances where the steel decking is employed in the form of cellular steel decking and the crest surfaces are provided with access openings for electrification purposes. With prior art cellular steel decking, the crest surface access openings created significant loss of strength in the steel decking --- in some cases requiring the use of heavier gauge decking or requiring shorter spans. The lengthwise grooves of this invention greatly increase the strength of the decking crest region and effectively offset the loss of strength which would otherwise arise from crest access openings.
DESCRIPTION OF THE DRAWINGS
FIGURES 1, ~, 3 are perspective sketches of typical corrugated steel decking sections of the prior art.
FIGURE 4 is a perspective sketch of a corrugated steel decking section according to the present invention.
FIGURE 5 is a fra~mentary cross-section view of a portion of the steel decking section of this invention.
Referring to FIGURE 1, a steel decking section of the type described in U.~. patent 3,363,379 is illustrated.
Decking section 10 includes crest surfaces 11, valley surfaces 12 and sloping web surfaces 13. All of the surfaces 11, 12, 13 are flat and essentially undeformed. Section 10 also includes lateral connecting flange 1~ and connecting groove 15 for assembling the sections 10 in side-by-side interlocked relationship.
The similar section 10' of FIGURE 2 corresponds to decking sections illustrated in U.S. patent 3,397,~97 including unindented crest surfaces 11', unindented valley surfaces 12', and deformed web surfaces 13' which are provided with multiple indentations or embossments 16 which may be obliquely oriented finger-shaped deformations as shown or may take a variety of other geometric shapes. The function of the web deformations 16 is to achieve a good bond between subsequently poured concrete and the steel decking. The corrugated steel decking of FIGURE 3 corresponds to that illustrated in Canada patent 704,83~ wherein the decking 10"
includes crest surfaces 11", unindented valley surfaces 12n, and sloping web surfaces 13". The crest surfaces 11" are equipped with multiple parallel deformations whose function is to increase the shear transfer capability of the resulting composite floor --- that is, the floor resulting from the combination of the steel decking 10" and subsequently poured concrete. The sloping sidewalls 13" are provided with ~ 166~69 multiple deformations 1~3 which are indentations or ~rooves functioning to improve the bond between the steel decking and the concrete in the resulting composite floor.
All of the decking sections of FI~URES 1, 2 and 3 are susceptible to damage along the top flange corner indicated by the numeral 19, 19', 1~" in FIGURES 1, 2, 3 respectively. It will further be observed that the sloping web surfaces 13, 13', 13" extend between the crest surfaces 11, 11', 11" and the valley surfaces 12, 12', 12". The entire length of the web surfaces 13, 13', 13" are susceptible to web crippling.
The steel decking section of this invention, as shown in FIGURE 4, includes crest surfaces 21, valley surfaces 22 and sloping web surfaces 23. A lengthwise groove 24 is depressed into the crest surface 21. A bead 25 is formed in each intermediate valley surface 22. ~ lengthwise groove 26 is provided in each sloping web surface adjacent to the top flange corner 27. The decking section 20 has a number of raised flutes, each such raised flute being formed from a crest surface 21 and the two contiguous sloping web surfaces 23. The beads 26 are indented into the raised flute structure.
The sloping webs 23 have an essentially flat lower portion which is provided with multiple deformations 28 which are preferably in the form of finger-shaped indentations which are aligned in parallel-relation to one another.
The crest surface 21 has a width indicated by the dimension line 29 in FIGURE 5. The inner surfaces of the grooves 26 are spaced apart by the distance 30. It will be observed that the dimension 30 is less than the dimension 29. The top flange corner 27 preferably has a bending radius " I 16646~
of about 3-ln mm. The yroove 26 preferably has a depth of about 5-15 mm.
Typically steel decking sections are fabricated from hot or cold rolled steel sheets, frequently galvanized steel sheets, of 22 gauge to 16 gauge thickness. The steel decking sections normally have a width of 60 to 300 cm and a height, between crest surfaces and valley sur~aces, of 35 to 100 mm.
Advantages of the Invention It will be observed that the top flange corner 27 of the present decking section has a spring-like character as a result of the penetration of the groove 26 into the area beneath the crest surface 21. Hence any impact blow applied to the top flange corner 27 will be readily absorbed by the structure without causing serious damage to the steel decking.
It is well known in composite floor technology that the shear stresses between the corrugated steel decking and the subsequently applied concrete covering material are maximized in the region just beneath the crest surface 21.
With the decking section of this invention, the groove 26 provides a greatly increased surface bonding capability for the concrete in the region where maximum shear stresses can be anticipated. As a result, the present decking section will develop superior strength properties in composite floors.
The concentration of steel in the top flange corner 27 functions to stiffen and to strengthen the decking section in that region. As a consequence, the decking section of this invention has superior wet strength properties when compared with corrugated steel decking sections of the prior art~ Furthermore, the stiffening contribution of the bead 26 in its location adjacent to the top corner flange 27 will stiffen the crest surface 21 and will permit cutting access openings in the crest surface 21 without significantly reducing the structural properties of the decking section.
The present invention greatly improves the web crippling characteristics of the decking section. In general, the load carrying capability of the decking section is determined by the vertical distance between the crest surface 21 and the valley surface 22. The web crippling tendency of the sloping webs 23 is determined by their flat length.
Referring to FIGURE 5, it will be observed that the flat length of the web surfaces 23 is considerably less than the distance between the valley surface 22 and the crest surface 21 along the plane of the web surface 23. The shortening of the flat web surface results from locating the grooves 26 in accordance with this invention. Thus the decking section has the strength resulting from spacing the valley surfaces 22 and crest surfaces 21 without having the normally accompanying decreased web crippling strength.
It should be observed in Figure S that the outer edges of each crest surface are positioned above the sidewall grooves. Planes normal to the crest surfaces at the outer edge of the crest surface will intersect the groove and not the sloping web surface.
It will further be observed that a plane extending normally from the outer edge of the crest surface 21 passes through the groove 26 and is inside the sloping wall surface 23, i.e. such normal planes do not intersect the sloping wall surfaces 23. As a consequence of this arrangement, any blow applied to the edge 27 tends to collapse that edge rather than to collapse a sloping wall surface 23.
~ 166469 It will further be observed that the outer edge of the top corner flange 27 is displaced inwardly from the arcuate corner which appears at the juncture of the sloping web 23 and the groove 26.
It will further be observed that an extension of the sloping sidewall surface 23 intersects the plane of the crest 21 at or outside the adjacent side edge 27 of the crest.
.
~ 9 :
`
DESCRIPTION OF THE DRAWINGS
FIGURES 1, ~, 3 are perspective sketches of typical corrugated steel decking sections of the prior art.
FIGURE 4 is a perspective sketch of a corrugated steel decking section according to the present invention.
FIGURE 5 is a fra~mentary cross-section view of a portion of the steel decking section of this invention.
Referring to FIGURE 1, a steel decking section of the type described in U.~. patent 3,363,379 is illustrated.
Decking section 10 includes crest surfaces 11, valley surfaces 12 and sloping web surfaces 13. All of the surfaces 11, 12, 13 are flat and essentially undeformed. Section 10 also includes lateral connecting flange 1~ and connecting groove 15 for assembling the sections 10 in side-by-side interlocked relationship.
The similar section 10' of FIGURE 2 corresponds to decking sections illustrated in U.S. patent 3,397,~97 including unindented crest surfaces 11', unindented valley surfaces 12', and deformed web surfaces 13' which are provided with multiple indentations or embossments 16 which may be obliquely oriented finger-shaped deformations as shown or may take a variety of other geometric shapes. The function of the web deformations 16 is to achieve a good bond between subsequently poured concrete and the steel decking. The corrugated steel decking of FIGURE 3 corresponds to that illustrated in Canada patent 704,83~ wherein the decking 10"
includes crest surfaces 11", unindented valley surfaces 12n, and sloping web surfaces 13". The crest surfaces 11" are equipped with multiple parallel deformations whose function is to increase the shear transfer capability of the resulting composite floor --- that is, the floor resulting from the combination of the steel decking 10" and subsequently poured concrete. The sloping sidewalls 13" are provided with ~ 166~69 multiple deformations 1~3 which are indentations or ~rooves functioning to improve the bond between the steel decking and the concrete in the resulting composite floor.
All of the decking sections of FI~URES 1, 2 and 3 are susceptible to damage along the top flange corner indicated by the numeral 19, 19', 1~" in FIGURES 1, 2, 3 respectively. It will further be observed that the sloping web surfaces 13, 13', 13" extend between the crest surfaces 11, 11', 11" and the valley surfaces 12, 12', 12". The entire length of the web surfaces 13, 13', 13" are susceptible to web crippling.
The steel decking section of this invention, as shown in FIGURE 4, includes crest surfaces 21, valley surfaces 22 and sloping web surfaces 23. A lengthwise groove 24 is depressed into the crest surface 21. A bead 25 is formed in each intermediate valley surface 22. ~ lengthwise groove 26 is provided in each sloping web surface adjacent to the top flange corner 27. The decking section 20 has a number of raised flutes, each such raised flute being formed from a crest surface 21 and the two contiguous sloping web surfaces 23. The beads 26 are indented into the raised flute structure.
The sloping webs 23 have an essentially flat lower portion which is provided with multiple deformations 28 which are preferably in the form of finger-shaped indentations which are aligned in parallel-relation to one another.
The crest surface 21 has a width indicated by the dimension line 29 in FIGURE 5. The inner surfaces of the grooves 26 are spaced apart by the distance 30. It will be observed that the dimension 30 is less than the dimension 29. The top flange corner 27 preferably has a bending radius " I 16646~
of about 3-ln mm. The yroove 26 preferably has a depth of about 5-15 mm.
Typically steel decking sections are fabricated from hot or cold rolled steel sheets, frequently galvanized steel sheets, of 22 gauge to 16 gauge thickness. The steel decking sections normally have a width of 60 to 300 cm and a height, between crest surfaces and valley sur~aces, of 35 to 100 mm.
Advantages of the Invention It will be observed that the top flange corner 27 of the present decking section has a spring-like character as a result of the penetration of the groove 26 into the area beneath the crest surface 21. Hence any impact blow applied to the top flange corner 27 will be readily absorbed by the structure without causing serious damage to the steel decking.
It is well known in composite floor technology that the shear stresses between the corrugated steel decking and the subsequently applied concrete covering material are maximized in the region just beneath the crest surface 21.
With the decking section of this invention, the groove 26 provides a greatly increased surface bonding capability for the concrete in the region where maximum shear stresses can be anticipated. As a result, the present decking section will develop superior strength properties in composite floors.
The concentration of steel in the top flange corner 27 functions to stiffen and to strengthen the decking section in that region. As a consequence, the decking section of this invention has superior wet strength properties when compared with corrugated steel decking sections of the prior art~ Furthermore, the stiffening contribution of the bead 26 in its location adjacent to the top corner flange 27 will stiffen the crest surface 21 and will permit cutting access openings in the crest surface 21 without significantly reducing the structural properties of the decking section.
The present invention greatly improves the web crippling characteristics of the decking section. In general, the load carrying capability of the decking section is determined by the vertical distance between the crest surface 21 and the valley surface 22. The web crippling tendency of the sloping webs 23 is determined by their flat length.
Referring to FIGURE 5, it will be observed that the flat length of the web surfaces 23 is considerably less than the distance between the valley surface 22 and the crest surface 21 along the plane of the web surface 23. The shortening of the flat web surface results from locating the grooves 26 in accordance with this invention. Thus the decking section has the strength resulting from spacing the valley surfaces 22 and crest surfaces 21 without having the normally accompanying decreased web crippling strength.
It should be observed in Figure S that the outer edges of each crest surface are positioned above the sidewall grooves. Planes normal to the crest surfaces at the outer edge of the crest surface will intersect the groove and not the sloping web surface.
It will further be observed that a plane extending normally from the outer edge of the crest surface 21 passes through the groove 26 and is inside the sloping wall surface 23, i.e. such normal planes do not intersect the sloping wall surfaces 23. As a consequence of this arrangement, any blow applied to the edge 27 tends to collapse that edge rather than to collapse a sloping wall surface 23.
~ 166469 It will further be observed that the outer edge of the top corner flange 27 is displaced inwardly from the arcuate corner which appears at the juncture of the sloping web 23 and the groove 26.
It will further be observed that an extension of the sloping sidewall surface 23 intersects the plane of the crest 21 at or outside the adjacent side edge 27 of the crest.
.
~ 9 :
`
Claims (5)
1. In a steel floor decking section comprising a profiled steel sheet having plural crest surfaces, plural valley surfaces and sloping web surfaces connecting each said crest surface to the adjoining valley surface, whereby each said crest surface and its contiguous sloping web surfaces form a raised flute;
lateral connecting means disposed along each side of said decking section;
the improvement comprising an inwardly depressed groove in each of the said sloping web surfaces adjacent the top of said raised flute, the plane of said sloping surface intersecting the plane of said crest surface at or outside the adjacent side edge of the said crest.
lateral connecting means disposed along each side of said decking section;
the improvement comprising an inwardly depressed groove in each of the said sloping web surfaces adjacent the top of said raised flute, the plane of said sloping surface intersecting the plane of said crest surface at or outside the adjacent side edge of the said crest.
2. The steel decking section of claim 1 wherein said groove has a depth of 5 to 15 mm.
3. The decking section of claim 1 wherein the said sloping web surfaces are essentially flat surfaces between the said groove and the continguous valley surface and wherein plural metal deformations in the form of indentations or embossments are provided over the flat portion of said web surfaces.
4. In a steel floor decking section comprising a profiled steel sheet having plural crest surfaces, plural valley surfaces and sloping web surfaces connecting each said crest surface to the adjoining valley surface, whereby each said crest surface and its contiguous sloping web surfaces form a raised flute;
lateral connecting means disposed along each side of said decking section;
the improvement comprising an inwardly depressed groove in each of the said sloping web surfaces adjacent the top of said raised flute, the said groove being inwardly disposed such that a plane normal to the said crest surface at the edge of said crest surface will intersect the said groove and will not intersect the said sloping wall surface.
lateral connecting means disposed along each side of said decking section;
the improvement comprising an inwardly depressed groove in each of the said sloping web surfaces adjacent the top of said raised flute, the said groove being inwardly disposed such that a plane normal to the said crest surface at the edge of said crest surface will intersect the said groove and will not intersect the said sloping wall surface.
5. The decking section of claim 1 wherein the said groove comprises a first downwardly curved surface at the side of each said crest, connecting with an inwardly, downwardly sloping flat surface, a second outwardly curved surface, an outwardly directed flat surface and a downwardly curved surface which joins the adjacent said sloping sidewall surface.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US15326080A | 1980-05-27 | 1980-05-27 | |
| US153,260 | 1980-05-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1166469A true CA1166469A (en) | 1984-05-01 |
Family
ID=22546436
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000378256A Expired CA1166469A (en) | 1980-05-27 | 1981-05-25 | Corrugated steel decking section |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPS5719456A (en) |
| CA (1) | CA1166469A (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58153613U (en) * | 1982-04-09 | 1983-10-14 | 川鉄建材工業株式会社 | deck plate |
| JPS58168609U (en) * | 1982-05-06 | 1983-11-10 | 日本鋼管ライトスチ−ル株式会社 | Detuki plate for synthetic floors with grooves with lids |
| JPS58168608U (en) * | 1982-05-06 | 1983-11-10 | 日本鋼管ライトスチ−ル株式会社 | Deck plate for synthetic flooring |
| JPS6124709A (en) * | 1984-07-12 | 1986-02-03 | 石川島播磨重工業株式会社 | bridge |
| JP2578556Y2 (en) * | 1992-07-24 | 1998-08-13 | 弘 近藤 | Floor material |
-
1981
- 1981-05-25 CA CA000378256A patent/CA1166469A/en not_active Expired
- 1981-05-26 JP JP7995981A patent/JPS5719456A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5719456A (en) | 1982-02-01 |
| JPS6325145B2 (en) | 1988-05-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4453364A (en) | Corrugated steel decking section | |
| US3397497A (en) | Deck system | |
| US4962622A (en) | Profiled sheet metal building unit and method for making the same | |
| US6415581B1 (en) | Corrugated stiffening member | |
| CA1155309A (en) | Culvert structure having corrugated ribbing support | |
| US4675238A (en) | Metal decking | |
| US5056348A (en) | Method of making a profiled sheet metal building unit | |
| US5491946A (en) | Wide decking structure | |
| US20070000197A1 (en) | Structural decking system | |
| AU2002325634B2 (en) | Profiled metal sheet | |
| US1986998A (en) | Steel floor construction | |
| JP5255840B2 (en) | Architectural panels and building structures | |
| CA1166469A (en) | Corrugated steel decking section | |
| AU2002325634A1 (en) | Profiled metal sheet | |
| AU2002223268B2 (en) | Metal decking | |
| US4211047A (en) | Structural spanning member | |
| AU2002223268A1 (en) | Metal decking | |
| AU2003229379B2 (en) | Reinforced structural steel decking | |
| GB2250039A (en) | Deck system for concrete flooring | |
| US3561184A (en) | Corrugated deck joist | |
| RU2846084C1 (en) | Pressed-profiled sheet profile with trapezoidal corrugations for monolithic reinforced concrete ceilings | |
| AU2009100928A4 (en) | Trapezoidal steel decking with press-folded ends | |
| WO1997017509A1 (en) | Composite slab, a profile plate thereof and a method for producing a composite slab | |
| AU2004206038B2 (en) | Structural decking system | |
| CA1054822A (en) | Reinforced composite slab assembly |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |