CA1162037A - Mould for casting an assembly element for steel reinforced concrete truss-work panels - Google Patents
Mould for casting an assembly element for steel reinforced concrete truss-work panelsInfo
- Publication number
- CA1162037A CA1162037A CA000418065A CA418065A CA1162037A CA 1162037 A CA1162037 A CA 1162037A CA 000418065 A CA000418065 A CA 000418065A CA 418065 A CA418065 A CA 418065A CA 1162037 A CA1162037 A CA 1162037A
- Authority
- CA
- Canada
- Prior art keywords
- mold
- struts
- assembly element
- casting
- steel reinforced
- 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
Landscapes
- Moulds, Cores, Or Mandrels (AREA)
Abstract
TITLE OF THE INVENTION:
A MOULD FOR CASTING AN ASSEMBLY ELEMENT FOR
STEEL REINFORCED CONCRETE TRUSS-WORK PANELS
ABSTRACT OF THE DISCLOSURE:
An assembly element for steel reinforced truss-type panels is cast as a one piece unit and comprise an upper and a lower chord plate interconnected by three, four, or six struts which extend out of the center of one plate and run toward the edges or corners of the respective other plate.
The struts are so positioned that the assembly element may be produced by mold casting. The removal of a cast element is facilitated by a mold which has a lower bottom cap, an upper top base and laterally movable side wall sections. A
pair of lateral side wall sections interconnects a bottom cap portion and a top base portion to form a mold part.
Thus, the number of mold parts correspond to the number of struts in the element.
A MOULD FOR CASTING AN ASSEMBLY ELEMENT FOR
STEEL REINFORCED CONCRETE TRUSS-WORK PANELS
ABSTRACT OF THE DISCLOSURE:
An assembly element for steel reinforced truss-type panels is cast as a one piece unit and comprise an upper and a lower chord plate interconnected by three, four, or six struts which extend out of the center of one plate and run toward the edges or corners of the respective other plate.
The struts are so positioned that the assembly element may be produced by mold casting. The removal of a cast element is facilitated by a mold which has a lower bottom cap, an upper top base and laterally movable side wall sections. A
pair of lateral side wall sections interconnects a bottom cap portion and a top base portion to form a mold part.
Thus, the number of mold parts correspond to the number of struts in the element.
Description
~ 162037 .
1 BACKGROUND OF THE INV~NTION:
The invention ~elates to assembly elements which are poured or cast in one piece, for steel reinforced concrete truss-type or truss-work panels according to the introductory part of claim 1, as well as to a multi-part mold for the production of such assembly elements.
An assembly element which is poured in one piece in the shape o~ a girder according to the introductory part of claim 1 is known from German Patent 94,693. This known assembly element can only be utilized for construction components with a uniaxial gross load effect. When, ~or example, a quadratic or square ceiling field having four studs to be covered with the assemb~y e~e~ents, girders or supporting beams are necessary in one direction upon which the known assembly elements are placed.
An assembly element for reinforced concrete truss-type panels in the shape of an elongated panel strip has already become known, which can also be used for z~ co~stru~tion ~nits with a hiaxial gross l~ad e~ec~, as disclosed ~ Ger~an Pat~nt Pub~i~a~ 2,3~,12S. ~r, comparison with an assem~ly element ~or a ~nia~ial gross l~ad ef~ect in conn~ction wi~h girder~ ~r supp~rt~n~
beams, such an assembly element, ~o~ ~iaxial gross load effectl exhibits a smaller structural height and a saving of materlal and therefore weight. However, without an
1 BACKGROUND OF THE INV~NTION:
The invention ~elates to assembly elements which are poured or cast in one piece, for steel reinforced concrete truss-type or truss-work panels according to the introductory part of claim 1, as well as to a multi-part mold for the production of such assembly elements.
An assembly element which is poured in one piece in the shape o~ a girder according to the introductory part of claim 1 is known from German Patent 94,693. This known assembly element can only be utilized for construction components with a uniaxial gross load effect. When, ~or example, a quadratic or square ceiling field having four studs to be covered with the assemb~y e~e~ents, girders or supporting beams are necessary in one direction upon which the known assembly elements are placed.
An assembly element for reinforced concrete truss-type panels in the shape of an elongated panel strip has already become known, which can also be used for z~ co~stru~tion ~nits with a hiaxial gross l~ad e~ec~, as disclosed ~ Ger~an Pat~nt Pub~i~a~ 2,3~,12S. ~r, comparison with an assem~ly element ~or a ~nia~ial gross l~ad ef~ect in conn~ction wi~h girder~ ~r supp~rt~n~
beams, such an assembly element, ~o~ ~iaxial gross load effectl exhibits a smaller structural height and a saving of materlal and therefore weight. However, without an
- 2 - ~k 1 ~82037 1 unjustifiably large expenditure for the mold, it was not possible to pour the assembly element in one piece.
Rather, the lower chord plate with the struts had to be completely poured first, and the upper chord plate had to be put on in a separate working operation. Additionally, the lower chord plate had to have openings of specific shape and size for the removal of the mold.
OBJECT OF THE INVENTION:
It is the object of the invention to make available an assembly element, which is poured in one piece, that can be used for a biaxial gross load effect and that is substantially free of statically superfluous construction materials. Within the scope of this objective an additional problem is to be solved, namely to provide a mold suitable for the production of such assembly elements.
; The basic objective of the invention is achieved by an assembly element in which three, four, or six struts interconnect the upper and lower chord plates whereby the struts are connected to a common point in the center of one chord plate while the other chord plate has a number of corners corresponding to the number of struts which extend from said common center point toward the edge 1 zone of the other chord plate, preferably toward said corners. Both known, prior art assembly e~ements exhibit several strut joints, in contrast to the invention which places a single strut joint into a common point centrally in one of the chord plates.
Special embodiments of the invention are defined in the dependent claims.
The secondary objective, to provide a mold for the production of such an assembly element is achieued by a mold in which the number of mo~able mold parts corresponds to the number of struts of the assembly element to be cast. In other words, each movable mold part comprises a bottom portion, a top portion and movable side wall portions of sections. The side walls of these movable mold parts form the strut molds proper and have separation surface angles which correspond to the projected angles of the strut directions whereby the removal of the assembly element from the mold is facilitated. A particularly advantageous casting mold is characteri~ed in that all movable mold side walls are identical.
BRIEF FIGURE DESCRIPTION:
The invention shall be explained in more detail and by way of example with the aid of the drawinys, wherein:
1 ~2037 ~
1 Fig. 1 shows a perspective view of the as6emb1y element, which is cast in one piece, for a biaxial gross load effect, according to the invention;
Fig. 2 is a section through the assembly element, according to Fig. 1, below the upper chord plate;
Fig. 3 is a schematic top view of a m~ld for the production of an assembly element accord-ing to Figs. 1 and 2; and Fig. 4 is a schematic sectional view along the line I - I in Fig. 3.
DETAILED DESCRIPTION OF PREFERRED EXAMPLE EMBODIMENTS AND
OF THE ~EST MODE OF THE INVENTION:
The assembly element shown in Figs. 1 and 2 comprises an upper chord plate 1, a lower chord plate 2 and four struts 3.
As best seen in Fig. 2, the struts 3 extend out from the mid-point of the lower chord plate 2 and their directions as pro-jected onto a horizontal plane enclose an angle of 90 with each other. The cross-section of the struts 3, again as best seen in Fig. 2, is hexagonal, whereby a corner points toward the center of the assembly element. The strut sur-faces 5 and 6 which define this corner form an angle ~ , in a horizontal section, which i5 smaller than 90. In that 1 1~;2037 ` ~
1 way, the strut surfaces 5 or 6 facing the adjacent strut 3 form an angle, in the horizontal section, with the oppo-site strut surface 6 or 5 of the adjacent strut, which angle opens in a direction away from the center of the as-sembly element. Thus" it is assured that no back taper exists in the assembly element in the direction of the angle bisector between two adjacent projected strut direc-tions 3, so that a satisfactory removal from the casting mold in the direction of this angle bisector is possible.
This angle need only be very small, that is to say, the surfaces 5 and 6 need form, in the horizontal section, an angle ~ that is a little smaller than 90~, for example 89.
Additonally, the cross-sectional shape of the struts 3 i~
arbitrary, a hexagonal cross-section is in no way required.
If the horizontal section has a curved contour of the strut, the remarks relating to the angle ~ pertain to the tan-gents at the corner 4.
The struts 3 lead to the outer corners of the upper chord plate 1, which in the illustrated example embodiment has a quadratic shape, as does the lower chord plate 2. They end at a distance from the outer sides of the upper chord plate 1, so that a circumferential horizontal surface is available as a upport for the joint sealing mold. Hori-zontal grooves 7 are formed on the outer sides of the upper chord plate 1, which facilitate the transmission of shear-ing ~orce from one assembly element to an adjoining one, 20~7 1 when they are in the assembled and poured or cast state.
Horizontal channels 8 are provided in the upper chord plate 1, as well as in the lower chord plate 2 into which reinforcements or tensioning components may be pushed dur-ing the assembly of the assembly elements. Aq shown, such channels 8 in the upper chord plate 1, as well as in the lower chord plate 2 extend in two directions orthogonal to each other.
In the form of construction described so far, the lower chord plate 2 is square as is the upper chord plate 1.
They can, however, also be rectangular. In both cases, the lower chord plate 2 can just as well be made of bars 9, that are indicated by broken lines within the lower chord plate 2. These lie in the direction of the angle bisector between two strut directions as projected on a horizontal plane and taper somewhat toward their ends outwardly from the center of the lower chord plate 2, so that the removal from the mold is facilitated. The bars or members 9 may also extend in the direction of the projected strut direc-~0 tions. Furthermore, the upper chord plate may also be made of bars, that must, however, lie in the direction of the projected strut directions.
In place of the four struts 3, three or six struts may also be used, whereby, naturally, the given angles of 90 are . .
g~ ~
1 ~62037 1 replaced by 360 : 3 = 120; or 360 : 6 = 60. This replace-ment applies to the angle between the strut directions as projected onto a horizontal plane as well as to the horizon-tal angle ~ between the strut surfaces 5 and 6. In case the upper and/or lower chord plates are reduced to bars, the number of these bar~ must be selected correspondingly. Gener-ally, the number of these bars must at least be equal to the n~nber of struts. Additionally, in the lower chord plate there i8 the possibility of arranging only three bars with six ~truts.
A mold for the production of an assembly element according to Figs. 1 and 2 is illustrated in Figs. 3 and 4. It com-prises, for example, four identical mold parts 10, which are held in a manner allowing them to slide toward and away from each other on telescopic guide rods 11 which extend radially relative to each other. Each mold part 10 com-prises a portion of an upper mold base 12 with a mold side wall 13, a portion of a bottom mold cap 14 with a mold side wall lS, and two halves of strut molds 16, which are open toward the separation plane, as can best be seen in Fig. 3.
In the top view the upper mold base 12 and the lower mold cap 14 have the shape of an isosceles rectangular triangle which lies symmetrically to the axis of the respective telescoping guide rod 11, as best seen in Fig. 3. Each mold piece 10 is stiffened by partitions 17 and 18 which 1 1~;2~37 1 are connected to their respective telescopic guide rod 11.
A typical mold base 19 is located below the mold side wall 15 of the lower mold cap 14.
The telescoping guide,rods 11 rest on ~he outside on sup-ports 20, which are secured to the mold base 19 and are connected to each other by a circumferential L-sectional member 22.
For the production of an assembly element according to Figs. 1 and 2, the pour mold parts 10 shown in Figs. 3 and 4 are brought into the position shown in Figs. 3 and 4, that is, they are pushed together so that the upper mold base 12 with the mold side walls 13, as well as the bottom mold cap 14 with the mold side walls 15, together form a quadratic casting cavity 23 or 24, whereby reinforcing steel rods and cores or sleeves are installed for the formation of the channels ~ in the ususal manner. Sub-sequently, the concrete can be poured into the casting cavity 24 and flows through the strut cavities 21, formed by two respective strut half molds 16, into the lower casting cavity 24. Alternately, the concrete may be pres-sed into the lower casting cavity 24 and then rise through the strut cavities 21 into the upper casting cavity 23.
After the concrete has hardened, the four mold parts 10 are pulled back into the position illustrated by the dotted lines in Fig. 3 by means of the respective telescoping guide rod 11. Then tha completed assembly element may be lifted off o the mold base 19 and be txansported to storage.
_ g _ ~ 1 ~62037 1 If bar members 9 are to be used in place of a continuous chord plate l or 2, the mold base 12, 13 and the mola cap 14, 15 are shaped accordingly. If another number of struts 3 is to be used, then a number of mold parts 10 cor-responding to the number of struts is needed, which also are shaped like isosceles triangles, the vertex angle of which is, however, equal to the angle between the direc-tions of the struts as projected onto a horizontal plane.
For example, three struts would require an angle of 120~.
The upper plate l is, in the last case, preferably hexa-gonal, as is the lower chord plate 2, as long as they are both solid as shown in Fig. l.
The mold parts lO need not necessarily be arranged on the telescopic guide rods ll, they can also, for example, be guided by a pantograph, or they may rest directly on the mold base.
All struts 3 extend from the midpoin~ of a chord plate surface, the lower chord plate 2 in the illustrated example embod.iment, thereby guaranteeing, in any case, that in the one-piece pouring of an assembly element, including the lower and upper chord plates, a satisfactory removal from the mold is possible since no back tapers result in the radial direction. This chord plate plane need not necessarily lie within the respective chord plate even though this is desir-able for reasons of statics. A steel reinforced concrete .. , . . . _ . . . _ _ .
1 16~0~7 1 truss-type panel with a three-dimensional supporting truss structure of assembly elements produced in one piece can thus be assembled.
Although the inventi~n has been described with reference to specific example embodiments it is to be understood that it is intended to cover all modificationY within the scope of the appended claims.
.. ... . .. . . . ..
Rather, the lower chord plate with the struts had to be completely poured first, and the upper chord plate had to be put on in a separate working operation. Additionally, the lower chord plate had to have openings of specific shape and size for the removal of the mold.
OBJECT OF THE INVENTION:
It is the object of the invention to make available an assembly element, which is poured in one piece, that can be used for a biaxial gross load effect and that is substantially free of statically superfluous construction materials. Within the scope of this objective an additional problem is to be solved, namely to provide a mold suitable for the production of such assembly elements.
; The basic objective of the invention is achieved by an assembly element in which three, four, or six struts interconnect the upper and lower chord plates whereby the struts are connected to a common point in the center of one chord plate while the other chord plate has a number of corners corresponding to the number of struts which extend from said common center point toward the edge 1 zone of the other chord plate, preferably toward said corners. Both known, prior art assembly e~ements exhibit several strut joints, in contrast to the invention which places a single strut joint into a common point centrally in one of the chord plates.
Special embodiments of the invention are defined in the dependent claims.
The secondary objective, to provide a mold for the production of such an assembly element is achieued by a mold in which the number of mo~able mold parts corresponds to the number of struts of the assembly element to be cast. In other words, each movable mold part comprises a bottom portion, a top portion and movable side wall portions of sections. The side walls of these movable mold parts form the strut molds proper and have separation surface angles which correspond to the projected angles of the strut directions whereby the removal of the assembly element from the mold is facilitated. A particularly advantageous casting mold is characteri~ed in that all movable mold side walls are identical.
BRIEF FIGURE DESCRIPTION:
The invention shall be explained in more detail and by way of example with the aid of the drawinys, wherein:
1 ~2037 ~
1 Fig. 1 shows a perspective view of the as6emb1y element, which is cast in one piece, for a biaxial gross load effect, according to the invention;
Fig. 2 is a section through the assembly element, according to Fig. 1, below the upper chord plate;
Fig. 3 is a schematic top view of a m~ld for the production of an assembly element accord-ing to Figs. 1 and 2; and Fig. 4 is a schematic sectional view along the line I - I in Fig. 3.
DETAILED DESCRIPTION OF PREFERRED EXAMPLE EMBODIMENTS AND
OF THE ~EST MODE OF THE INVENTION:
The assembly element shown in Figs. 1 and 2 comprises an upper chord plate 1, a lower chord plate 2 and four struts 3.
As best seen in Fig. 2, the struts 3 extend out from the mid-point of the lower chord plate 2 and their directions as pro-jected onto a horizontal plane enclose an angle of 90 with each other. The cross-section of the struts 3, again as best seen in Fig. 2, is hexagonal, whereby a corner points toward the center of the assembly element. The strut sur-faces 5 and 6 which define this corner form an angle ~ , in a horizontal section, which i5 smaller than 90. In that 1 1~;2037 ` ~
1 way, the strut surfaces 5 or 6 facing the adjacent strut 3 form an angle, in the horizontal section, with the oppo-site strut surface 6 or 5 of the adjacent strut, which angle opens in a direction away from the center of the as-sembly element. Thus" it is assured that no back taper exists in the assembly element in the direction of the angle bisector between two adjacent projected strut direc-tions 3, so that a satisfactory removal from the casting mold in the direction of this angle bisector is possible.
This angle need only be very small, that is to say, the surfaces 5 and 6 need form, in the horizontal section, an angle ~ that is a little smaller than 90~, for example 89.
Additonally, the cross-sectional shape of the struts 3 i~
arbitrary, a hexagonal cross-section is in no way required.
If the horizontal section has a curved contour of the strut, the remarks relating to the angle ~ pertain to the tan-gents at the corner 4.
The struts 3 lead to the outer corners of the upper chord plate 1, which in the illustrated example embodiment has a quadratic shape, as does the lower chord plate 2. They end at a distance from the outer sides of the upper chord plate 1, so that a circumferential horizontal surface is available as a upport for the joint sealing mold. Hori-zontal grooves 7 are formed on the outer sides of the upper chord plate 1, which facilitate the transmission of shear-ing ~orce from one assembly element to an adjoining one, 20~7 1 when they are in the assembled and poured or cast state.
Horizontal channels 8 are provided in the upper chord plate 1, as well as in the lower chord plate 2 into which reinforcements or tensioning components may be pushed dur-ing the assembly of the assembly elements. Aq shown, such channels 8 in the upper chord plate 1, as well as in the lower chord plate 2 extend in two directions orthogonal to each other.
In the form of construction described so far, the lower chord plate 2 is square as is the upper chord plate 1.
They can, however, also be rectangular. In both cases, the lower chord plate 2 can just as well be made of bars 9, that are indicated by broken lines within the lower chord plate 2. These lie in the direction of the angle bisector between two strut directions as projected on a horizontal plane and taper somewhat toward their ends outwardly from the center of the lower chord plate 2, so that the removal from the mold is facilitated. The bars or members 9 may also extend in the direction of the projected strut direc-~0 tions. Furthermore, the upper chord plate may also be made of bars, that must, however, lie in the direction of the projected strut directions.
In place of the four struts 3, three or six struts may also be used, whereby, naturally, the given angles of 90 are . .
g~ ~
1 ~62037 1 replaced by 360 : 3 = 120; or 360 : 6 = 60. This replace-ment applies to the angle between the strut directions as projected onto a horizontal plane as well as to the horizon-tal angle ~ between the strut surfaces 5 and 6. In case the upper and/or lower chord plates are reduced to bars, the number of these bar~ must be selected correspondingly. Gener-ally, the number of these bars must at least be equal to the n~nber of struts. Additionally, in the lower chord plate there i8 the possibility of arranging only three bars with six ~truts.
A mold for the production of an assembly element according to Figs. 1 and 2 is illustrated in Figs. 3 and 4. It com-prises, for example, four identical mold parts 10, which are held in a manner allowing them to slide toward and away from each other on telescopic guide rods 11 which extend radially relative to each other. Each mold part 10 com-prises a portion of an upper mold base 12 with a mold side wall 13, a portion of a bottom mold cap 14 with a mold side wall lS, and two halves of strut molds 16, which are open toward the separation plane, as can best be seen in Fig. 3.
In the top view the upper mold base 12 and the lower mold cap 14 have the shape of an isosceles rectangular triangle which lies symmetrically to the axis of the respective telescoping guide rod 11, as best seen in Fig. 3. Each mold piece 10 is stiffened by partitions 17 and 18 which 1 1~;2~37 1 are connected to their respective telescopic guide rod 11.
A typical mold base 19 is located below the mold side wall 15 of the lower mold cap 14.
The telescoping guide,rods 11 rest on ~he outside on sup-ports 20, which are secured to the mold base 19 and are connected to each other by a circumferential L-sectional member 22.
For the production of an assembly element according to Figs. 1 and 2, the pour mold parts 10 shown in Figs. 3 and 4 are brought into the position shown in Figs. 3 and 4, that is, they are pushed together so that the upper mold base 12 with the mold side walls 13, as well as the bottom mold cap 14 with the mold side walls 15, together form a quadratic casting cavity 23 or 24, whereby reinforcing steel rods and cores or sleeves are installed for the formation of the channels ~ in the ususal manner. Sub-sequently, the concrete can be poured into the casting cavity 24 and flows through the strut cavities 21, formed by two respective strut half molds 16, into the lower casting cavity 24. Alternately, the concrete may be pres-sed into the lower casting cavity 24 and then rise through the strut cavities 21 into the upper casting cavity 23.
After the concrete has hardened, the four mold parts 10 are pulled back into the position illustrated by the dotted lines in Fig. 3 by means of the respective telescoping guide rod 11. Then tha completed assembly element may be lifted off o the mold base 19 and be txansported to storage.
_ g _ ~ 1 ~62037 1 If bar members 9 are to be used in place of a continuous chord plate l or 2, the mold base 12, 13 and the mola cap 14, 15 are shaped accordingly. If another number of struts 3 is to be used, then a number of mold parts 10 cor-responding to the number of struts is needed, which also are shaped like isosceles triangles, the vertex angle of which is, however, equal to the angle between the direc-tions of the struts as projected onto a horizontal plane.
For example, three struts would require an angle of 120~.
The upper plate l is, in the last case, preferably hexa-gonal, as is the lower chord plate 2, as long as they are both solid as shown in Fig. l.
The mold parts lO need not necessarily be arranged on the telescopic guide rods ll, they can also, for example, be guided by a pantograph, or they may rest directly on the mold base.
All struts 3 extend from the midpoin~ of a chord plate surface, the lower chord plate 2 in the illustrated example embod.iment, thereby guaranteeing, in any case, that in the one-piece pouring of an assembly element, including the lower and upper chord plates, a satisfactory removal from the mold is possible since no back tapers result in the radial direction. This chord plate plane need not necessarily lie within the respective chord plate even though this is desir-able for reasons of statics. A steel reinforced concrete .. , . . . _ . . . _ _ .
1 16~0~7 1 truss-type panel with a three-dimensional supporting truss structure of assembly elements produced in one piece can thus be assembled.
Although the inventi~n has been described with reference to specific example embodiments it is to be understood that it is intended to cover all modificationY within the scope of the appended claims.
.. ... . .. . . . ..
Claims (2)
1. A mold for casting an assembly element for steel reinforced concrete truss-work panels including upper and lower chord means interconnected by three, four or six struts which form a single junction in the center of one of the chord means and fan out toward said edge zone of the other said chord means, comprising a plurality of mold parts corresponding in number to the number of struts, said mold parts comprising separation surfaces enclosing the same angle as the directions of the struts projected into a horizontal plane.
2. The mold of claim 1, for casting an assembly element in which all angles between the projected strut directions are the same, wherein all of said mold parts are of identical shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000418065A CA1162037A (en) | 1980-08-23 | 1982-12-17 | Mould for casting an assembly element for steel reinforced concrete truss-work panels |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEP3031868.4 | 1980-08-23 | ||
| DE3031868A DE3031868C2 (en) | 1980-08-23 | 1980-08-23 | Assembly element cast in one piece for reinforced concrete framework panels and casting mold for its manufacture |
| CA000383808A CA1159275A (en) | 1980-08-23 | 1981-08-13 | Assembly element, poured in one piece, for steel reinforced concrete truss-type panels, |
| CA000418065A CA1162037A (en) | 1980-08-23 | 1982-12-17 | Mould for casting an assembly element for steel reinforced concrete truss-work panels |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1162037A true CA1162037A (en) | 1984-02-14 |
Family
ID=27167109
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000418065A Expired CA1162037A (en) | 1980-08-23 | 1982-12-17 | Mould for casting an assembly element for steel reinforced concrete truss-work panels |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1162037A (en) |
-
1982
- 1982-12-17 CA CA000418065A patent/CA1162037A/en not_active Expired
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| RU2242360C2 (en) | Embedded molding member for forming flat reinforced concrete panels | |
| US1380324A (en) | Concrete construction | |
| EP0652336B1 (en) | Prefabricated industrial floor | |
| US4679762A (en) | Form set-up | |
| US4277921A (en) | Three-dimensional componental module at "T" modified for the industrial preformation of buildings | |
| CA1159275A (en) | Assembly element, poured in one piece, for steel reinforced concrete truss-type panels, | |
| CA1162037A (en) | Mould for casting an assembly element for steel reinforced concrete truss-work panels | |
| US3600862A (en) | Procedure and precast building elements made of concrete or reinforced concrete for the construction of buildings or skeletons | |
| KR19990052258A (en) | Round steel pipe steel mold of steel bridge | |
| GB2183269A (en) | Construction of tall tanks, silos, towers, chimneys etc. | |
| KR102267643B1 (en) | Inverse Tee PSC Girder Prefabricated With Top Saddle PC blocks And Slab Construction Method Using Thereof | |
| CN215368705U (en) | Floor post-cast strip pouring mold structure | |
| US4129968A (en) | Modular construction element | |
| JPH0280747A (en) | Girder structure | |
| CN112681726A (en) | Floor post-cast strip pouring mold structure and construction method thereof | |
| DE3265497D1 (en) | Building structure of prefabricated elements | |
| CN213268524U (en) | Prefabricated two-way cross rib coincide superstructure of chamfer type | |
| KR920009316B1 (en) | Reinforcing elements for half precast concrete slab | |
| CN115787922A (en) | Disassembly-free prefabricated beam column component, beam plate column connecting structure and construction method | |
| JP2616217B2 (en) | Underground construction method of building | |
| DK163014B (en) | BUILDING BLOCK | |
| SU1131984A1 (en) | Prefabricated multivoid floor panel | |
| JPS627805Y2 (en) | ||
| SU1301720A1 (en) | Form for manufacturing concrete mix articles | |
| SU1767114A1 (en) | Joint assembly of horizontal and inclined members of three-dimensional structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |