CN114174610B - Method and connecting device for mounting a prefabricated structural element to another structural element - Google Patents
Method and connecting device for mounting a prefabricated structural element to another structural element Download PDFInfo
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- CN114174610B CN114174610B CN202080043599.0A CN202080043599A CN114174610B CN 114174610 B CN114174610 B CN 114174610B CN 202080043599 A CN202080043599 A CN 202080043599A CN 114174610 B CN114174610 B CN 114174610B
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- 238000000034 method Methods 0.000 title claims abstract description 36
- 239000002002 slurry Substances 0.000 claims abstract description 57
- 239000004567 concrete Substances 0.000 claims abstract description 37
- 239000011440 grout Substances 0.000 claims abstract description 17
- 239000011248 coating agent Substances 0.000 claims abstract description 15
- 238000000576 coating method Methods 0.000 claims abstract description 15
- 239000000463 material Substances 0.000 claims description 10
- 238000000926 separation method Methods 0.000 claims description 9
- 125000006850 spacer group Chemical group 0.000 claims description 9
- 238000004873 anchoring Methods 0.000 claims description 8
- 229910052602 gypsum Inorganic materials 0.000 claims description 4
- 239000010440 gypsum Substances 0.000 claims description 4
- 239000011431 lime mortar Substances 0.000 claims description 4
- 239000011490 mineral wool Substances 0.000 claims description 4
- -1 stucco Substances 0.000 claims description 3
- 239000011150 reinforced concrete Substances 0.000 description 37
- 238000010276 construction Methods 0.000 description 14
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 239000000126 substance Substances 0.000 description 4
- 239000011178 precast concrete Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000004570 mortar (masonry) Substances 0.000 description 2
- 239000011120 plywood Substances 0.000 description 2
- 229920006254 polymer film Polymers 0.000 description 2
- 239000004753 textile Substances 0.000 description 2
- 239000004568 cement Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/02—Structures consisting primarily of load-supporting, block-shaped, or slab-shaped elements
- E04B1/04—Structures consisting primarily of load-supporting, block-shaped, or slab-shaped elements the elements consisting of concrete, e.g. reinforced concrete, or other stone-like material
- E04B1/043—Connections specially adapted therefor
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/38—Connections for building structures in general
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/20—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of concrete, e.g. reinforced concrete, or other stonelike material
- E04B1/21—Connections specially adapted therefor
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/343—Structures characterised by movable, separable, or collapsible parts, e.g. for transport
- E04B1/34315—Structures characterised by movable, separable, or collapsible parts, e.g. for transport characterised by separable parts
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/38—Connections for building structures in general
- E04B1/41—Connecting devices specially adapted for embedding in concrete or masonry
- E04B1/4114—Elements with sockets
- E04B1/4121—Elements with sockets with internal threads or non-adjustable captive nuts
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/38—Connections for building structures in general
- E04B1/41—Connecting devices specially adapted for embedding in concrete or masonry
- E04B1/4114—Elements with sockets
- E04B1/4135—Elements with sockets receiving removal bolt heads
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Mechanical Engineering (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
A method and a connection device for mounting a prefabricated structural element (1) comprising concrete to another structural element (2) are described. The method comprises the following steps: -a connection step for connecting the prefabricated structural element (1) to the further structural element (2) by means of a repeatedly openable and closable mechanical connection device (3) such that a joint (4) is formed between the prefabricated structural element (1) and the further structural element (2); a grouting step of grouting the joint (4) by at least partially covering the joint (4) with a slurry (5) and hardening the slurry (5); and a coating step for coating the surface (6) of the prefabricated structural element (1) covered by the grout (5) in the grouting step with an anti-adhesion device (7) at least partially before the grouting step.
Description
Technical Field
The present invention relates to a method for mounting a prefabricated structural element comprising concrete to another structural element as defined in the preamble of independent claim 1.
The invention also relates to a connection device between a prefabricated structural element comprising concrete and another structural element as defined in the preamble of independent claim 14.
Object of the Invention
It is an object to provide a method for mounting a prefabricated structural element comprising concrete to another structural element and a connection device between the prefabricated structural element comprising concrete and the other structural element, which allows opening a connection between the prefabricated structure and the other structural element such that the prefabricated structural element comprising concrete can be easily disassembled and reused to promote recycling economy.
Brief description of the drawings
The method of the invention for mounting a prefabricated structural element comprising concrete to another structural element is characterized by what is defined in independent claim 1.
Preferred embodiments of the method are defined in the dependent claims 2 to 13.
Correspondingly, the connection device according to the invention between a prefabricated structural element comprising concrete and another structural element is characterized by what is stated in the independent claim 14.
Preferred embodiments of the connection device are defined in the dependent claims 15 to 26.
The precast structural elements comprising concrete may be, for example, any of precast reinforced concrete columns/precast reinforced concrete piles/precast reinforced concrete columns, precast reinforced concrete beams, and precast concrete wall elements.
The further structural element may also be a prefabricated structural element comprising concrete, such as a prefabricated reinforced concrete column/prefabricated reinforced concrete pile/prefabricated reinforced concrete column. Alternatively, the further structural element may be a cast-in-place structural element comprising concrete, such as a reinforced concrete foundation or be part of a reinforced concrete foundation.
Drawings
The method and the connecting device will be described in more detail below with reference to the drawings, in which,
fig. 1 shows a first embodiment of the connection device, wherein the prefabricated structural element is in the form of a prefabricated reinforced concrete column, and wherein the other structural element is in the form of a reinforced concrete foundation,
fig. 2 shows a second embodiment of the connection device, wherein the prefabricated structural element is in the form of a prefabricated reinforced concrete column, and wherein the other structural element is in the form of a reinforced concrete foundation,
fig. 3 shows a third embodiment of the connection device, wherein the prefabricated structural element is in the form of a prefabricated reinforced concrete column, and wherein the other structural element is in the form of a reinforced concrete foundation,
fig. 4 shows a fourth embodiment of the connection device, wherein the prefabricated structural element is in the form of a prefabricated concrete wall element, and wherein the further structural element is in the form of a reinforced concrete foundation,
fig. 5 shows a fifth embodiment of the connection device, wherein the prefabricated structural element is in the form of a prefabricated concrete wall element, and wherein the further structural element is in the form of a reinforced concrete foundation,
fig. 6 shows a sixth embodiment of the connection device, wherein the prefabricated structural element is in the form of a prefabricated concrete wall element, and wherein the other structural element is in the form of a reinforced concrete foundation,
fig. 7 shows a seventh embodiment of the connection device, wherein the prefabricated structural element is in the form of a prefabricated concrete beam, and wherein the other structural element is in the form of a prefabricated reinforced concrete column,
figure 8 shows the steps of the disassembly procedure of the first embodiment of the connection device shown in figure 1,
figure 9 shows a further step in the disassembly process of the first embodiment of the connection device shown in figure 1,
figure 10 shows a further step in the disassembly process of the first embodiment of the connection device shown in figure 1,
figures 11a to 11c show further steps of the disassembly process of the first embodiment of the connection device shown in figure 1,
FIG. 12 shows a spacer in the form of a non-perforated sheet, and
fig. 13 shows a spacer in the form of an expanded steel sheet.
Detailed Description
First, a method for mounting a prefabricated structural element 1 comprising concrete to another structural element 2 will be described in more detail.
The precast structural element 1 comprising concrete may be, for example, any one of a precast reinforced concrete column/precast reinforced concrete pile/precast reinforced concrete column as illustrated in fig. 1 to 3, a precast reinforced concrete beam as illustrated in fig. 7, and a precast concrete wall element as illustrated in fig. 4 to 6.
The further structural element 2 may also be a prefabricated structural element 1 comprising concrete, for example a prefabricated reinforced concrete column/prefabricated reinforced concrete pile/prefabricated reinforced concrete column as illustrated in fig. 7. Alternatively, the further structural element 2 may be a cast-in-place structural element comprising concrete, such as a reinforced concrete foundation as illustrated in fig. 1 to 6 or be part of a reinforced concrete foundation.
The method comprises a connecting step for connecting the prefabricated structural element 1 to the further structural element 2 by means of a repeatedly openable and closable mechanical connecting device 3 such that a joint 4 is formed between the prefabricated structural element 1 and the further structural element 2 and such that the joint 4 is at least partially limited by the prefabricated structural element 1 and the further structural element 2.
The method comprises a grouting step for grouting the joint 4 by at least partly covering, e.g. filling, the joint 4 with a slurry 5 and hardening the slurry 5.
The method comprises a coating step for coating the surface 6 of the prefabricated structural element 1 covered by the grout 5 in the grouting step, at least partially by means of a spacer 7, such as by means of an anti-adhesion device, prior to the grouting step.
In the coating step, mechanical anti-blocking means, such as perforated or unperforated plates, perforated or unperforated sheets or perforated or unperforated films, may be used as the separating means 7. Expanded steel sheet, perforated steel sheet, polymer film, textile sheet, form mats, timber such as coated plywood may be used, for example, as mechanical anti-blocking means. An advantage achieved by using perforated plates, perforated sheets or perforated films as the separating means 7 is that the perforation allows the slurry 5 to be attached to the prefabricated structural element 1 through the separating means 7. This provides a stronger connection between the grout 5 and the prefabricated construction element 1 while allowing easy separation of the prefabricated construction element 1 from the separating means 7 and the grout 5.
An anti-blocking substance such as a fluid, for example oil, cement retarder or carbon, may be used as the separating means 7 in the coating step.
The coating step preferably, but not necessarily, comprises providing the coating step with a separating means 7, which is a separate device from the prefabricated structural element 1, i.e. does not form part of the prefabricated structural element 1, and which is a separate device from the further structural element 2, i.e. does not form part of the further structural element 2.
The separating means 7 are preferably, but not necessarily, arranged to follow at least partly an interface (not indicated with a reference numeral), i.e. a connection surface between the slurry 5 configured to cover the prefabricated structural element 1 in the joint 4 and the surface 6 of the prefabricated structural element 1.
This method allows the prefabricated construction element 1 to be easily removed from the grouting without damaging the prefabricated construction element 1, since the grout 5 will not adhere to the surface 6 of the prefabricated construction element 1 due to the separating means 7.
The coating step preferably, but not necessarily, comprises additionally coating the surface 6 of the further structural element 2 covered by the slurry 5 before the grouting, at least partly by means of a spacer 7, such as by any alternative means of the spacer 7 present. In this case, the separation means 7 are preferably, but not necessarily, arranged to follow at least partially an interface (not indicated with a reference numeral), i.e. a connection surface between the slurry 5 configured to cover the further structural element 2 in the joint 4 and the surface 6 of the further structural element 2.
This method allows the further structural element 2 to be easily removed without damaging the further structural element 2, since the slurry 5 does not adhere to the surface 6 of the further structural element 2, which is coated by the separating means 7.
In some embodiments, as illustrated in fig. 1 to 7, the grouting step preferably, but not necessarily, comprises providing a mechanical connection means 3 that is repeatable to open and close, comprising an anchor bolt 8 extending from the further structural element 2. In such an embodiment, the connecting step may comprise screwing the first nut 9 onto the anchor bolt 8 such that the nut is at a distance from the further structural element 2, as illustrated in fig. 1 to 3. In such an embodiment, the connecting step comprises arranging the anchor bolts 8 through openings 10 in the prefabricated structural element 1 such that the first nuts 9 are located between the further structural element 2 and the prefabricated structural element 1 and a grouting space 11 is formed between the further structural element 2 and the prefabricated structural element 1. In such an embodiment, the connecting step comprises screwing a second nut 12 onto the anchor bolt 8 to fix the prefabricated structural element 1 to the anchor bolt 8. In the embodiment illustrated in fig. 4 to 6, a spacer 17 is arranged between the opening 10 and the second nut 12 at the anchor bolt 8. In such an embodiment, the method preferably, but not necessarily, comprises arranging the anchor bolts 8 in the connecting step through openings 10 formed in a metal plate 13 of a connector element 14 at least partly cast into the concrete of the prefabricated structural element 1. Depending on the form of the prefabricated construction element 1, such a connector element 14 may for example be in the form of a pole shoe as illustrated in the embodiment shown in fig. 1 to 3, in the form of a beam shoe as illustrated in the embodiment shown in fig. 7, or in the form of a wall shoe as illustrated in the embodiment shown in fig. 4 and 5. In such an embodiment, the connecting step preferably, but not necessarily, comprises arranging the anchor bolt 8 through the opening 10 in the prefabricated structural element 1 such that the anchor bolt 8 extends into the cavity 15 in the prefabricated structural element 1, and the connecting step preferably, but not necessarily, comprises screwing said second nut 12 onto the anchor bolt 8 inside the cavity such that the second nut 12 is received in the cavity. In such embodiments, the method preferably, but not necessarily, includes a filling step that at least partially fills the cavity with a material 16 other than the slurry 5 prior to the grouting step to at least partially prevent the slurry 5 from entering the cavity. At least one of, for example, mineral wool, gypsum, stucco, and lime mortar may be used as the other material 16 in the filling step. These materials are easier to remove than concrete or mortar so that the re-openable and closable mechanical connection 3 can be brought into the cavity 15 and opened, as illustrated in fig. 8.
In order to increase the shear force transfer capacity between the slurry 5 in the joint 4 between the prefabricated structural element 1 and the further structural element 2 while still producing an easy to disassemble connection allowing for at least re-use of the structural element 1, the method may comprise providing the prefabricated structural element 1 with at least one of a protruding structure 20 configured to protrude into the slurry 5 in the joint between the prefabricated structural element 1 and the further structural element 2 and a cavity structure 21 configured to protrude into the cavity structure from the slurry 5 in the joint between the prefabricated structural element 1 and the further structural element 2.
In order to increase the shear force transfer capacity between the slurry 5 in the joint 4 between the prefabricated structural element 1 and the further structural element 2 while still producing an easy to disassemble connection allowing for at least re-use of the structural element 1, the method may comprise providing the further structural element 2 with at least one of a protruding structure 20 configured to protrude into the slurry 5 in the joint between the prefabricated structural element 1 and the further structural element 2 and a cavity structure 21 configured to protrude into the cavity structure from the slurry 5 in the joint between the prefabricated structural element 1 and the further structural element 2.
In order to increase the shear force transfer capacity between the prefabricated structural element 1 and the further structural element 2 while still producing an easy-to-disassemble connection allowing for at least re-use of the structural element 1, the structural element 1 may be provided with a structure 20 extending into a cavity 21 in the slurry 5 between the prefabricated structural element 1 and the further structural element 2, as illustrated in fig. 2.
In order to increase the shear force transmission capacity between the prefabricated structural element 1 and the further structural element 2 while still producing an easy-to-disassemble connection allowing for at least re-use of the structural element 1, the structural element 1 may alternatively be provided with a structure 20 extending into a cavity 21 in the further structural element 2, as illustrated in fig. 3.
Alternatively, the shear force transfer capacity between the prefabricated structural element 1 and the further structural element 2 may be increased while still creating an easy-to-detach connection allowing at least the reuse of the structural element 1 by forming the cavity 21 in the surface 6 of the prefabricated structural element 1 such that the cavity 21 is configured to be filled with slurry 5 poured between the prefabricated structural element 1 and the further structural element 2, as illustrated in fig. 5.
Alternatively, the shear force transfer capacity between the prefabricated structural element 1 and the further structural element 2 may be increased while still producing an easily detachable connection allowing at least the reuse of the structural element 1 by forming cavities 21 in both the surface 6 of the prefabricated structural element 1 and the surface 6 of the further structural element such that both cavities 21 are configured to be filled with slurry 5 poured between the prefabricated structural element 1 and the further structural element 2, as illustrated in fig. 6.
The anchoring bolt 8 is preferably, but not necessarily, a threaded rod screwed into a threaded sleeve 17, the threaded sleeve 17 is cast into the concrete of the further structural element 2, the threaded sleeve 17 extends from the surface 6 of the further structural element 2 into the further structural element 2, and the threaded rod is anchored by means of an anchoring device 18 fastened to the threaded sleeve 17 and also cast into the concrete of the further structural element 2. Examples of this are the Peikko groupAn anchor coupling. The advantage of such a construction is that this allows the threaded rod to be removed from the threaded sleeve 17, so that there is no longer an anchor protruding from the further structural element 2The bolt 8 is as illustrated in fig. 11a to 11 c. In fig. 11b and 11c, a separate tool 22 is screwed into the threaded sleeve 17 to remove the threaded sleeve 17 from the other structural element 2.
The connection means between the prefabricated structural element 1 comprising concrete and the further structural element 2 will be described in more detail in the following.
The precast structural element 1 comprising concrete may be any one of, for example, a precast reinforced concrete column/precast reinforced concrete pile/precast reinforced concrete column as illustrated in fig. 1 to 3, a precast reinforced concrete beam as illustrated in fig. 7, and a precast concrete wall element as illustrated in fig. 4 to 6.
The further structural element 2 may also be a prefabricated structural element 1 comprising concrete, for example a prefabricated reinforced concrete column/prefabricated reinforced concrete pile/prefabricated reinforced concrete column as illustrated in fig. 7. Alternatively, the further structural element 2 may be a cast-in-place structural element comprising concrete, such as a reinforced concrete foundation as illustrated in fig. 1 to 6 or be part of a reinforced concrete foundation.
In the connection device, the prefabricated structural element 1 is connected to the further structural element 2 by means of a mechanical connection device 3 which can be opened and closed repeatedly, such that a joint 4 is formed between the prefabricated structural element 1 and the further structural element 2, and such that the joint 4 is at least partially limited by the prefabricated structural element 1 and the further structural element 2.
In the connection device, the joint 4 is at least partly covered, e.g. filled, with a slurry 5 that is allowed to harden.
In the connection means, a separation means 7, such as an anti-blocking means 7, is present between the surface 6 of the prefabricated structural element 1, which is at least partially covered with the grout 5, and said grout 5, which at least partially covers the joint 4 and is allowed to harden.
The separation means 7 may comprise mechanical anti-blocking means, such as perforated or unperforated plates, perforated or unperforated sheets or perforated or unperforated films. The mechanical anti-blocking means may be, for example, expanded steel sheet, perforated steel sheet, polymer film, woven sheet, textile sheet, form liner, and wood such as coated plywood. An advantage achieved by using perforated plates, perforated sheets or perforated films as the separating means 7 is that the perforation allows the slurry 5 to be attached to the prefabricated structural element 1 through the separating means 7. This provides a stronger connection between the grout 5 and the prefabricated construction element 1 while allowing easy separation of the prefabricated construction element 1 from the separating means 7 and the grout 5.
The separation means 7 may comprise an anti-blocking substance, such as a fluid, for example oil or carbon.
The separating device 7 is preferably, but not necessarily, a device separate from the prefabricated structural element 1, i.e. not part of the prefabricated structural element, and is a device separate from the further structural element 2, i.e. not part of the further structural element 2.
The separating means 7 preferably, but not necessarily, at least partly follows the interface (not indicated with a reference numeral), i.e. the connection surface between the slurry 5 covering the prefabricated structural element 1 in the joint 4 and the surface 6 of the prefabricated structural element 1.
The connection means allows easy removal of the prefabricated construction element 1 from the grouting without damaging the prefabricated construction element 1, since the grout 5 does not adhere to the surface 6 of the prefabricated construction element 1 coated with the anti-blocking substance 7.
In the connection means any alternative means of separating means 7, such as the separating means 7 present, is preferably also present between the surface 6 of the further structural element 2 at least partly covered by the grout 5 and the grout 5 at least partly covering the joint 4 and being allowed to harden. An advantage of such a structure is that this allows easy removal of the slurry from the other structural element, since the slurry 5 does not adhere to the surface 6 of the other structural element 2 coated with the anti-blocking substance 7. In this case, the separating means 7 preferably, but not necessarily, at least partly follows an interface (not indicated with a reference numeral), i.e. a connecting surface between the slurry 5 covering the further structural element 2 in the joint 4 and the surface 6 of the further structural element.
In some embodiments, as illustrated in fig. 1 to 7, the connection means preferably, but not necessarily, comprise a mechanical connection means 3 that can be opened and closed repeatedly, comprising an anchor bolt 8 extending from the further structural element 2. In such an embodiment, the mechanical connection means 3, which can be opened and closed repeatedly, can comprise a first nut 9 screwed onto the anchor bolt 8, with the nut being at a distance from the further structural element 2, as illustrated in fig. 1 to 3. In such an embodiment, the anchor bolt 8 may be passed through the opening 10 in the prefabricated structural element 1 such that the first nut 9 is located between the further structural element 2 and the prefabricated structural element 1 and such that a grouting space 11 is formed between the further structural element 2 and the prefabricated structural element 11. In such an embodiment, the re-openable and closable mechanical connection device 3 may comprise a second nut 12 screwed to the anchor bolt 8 to secure the prefabricated structural element 1 to the anchor bolt 8. In the embodiment illustrated in fig. 4 to 6, a spacer 17 is arranged between the opening 10 and the second nut 12 at the anchor bolt 8. In such an embodiment, the anchor bolts 8 may pass through openings 10 formed in a metal plate 13 of a connector element 14 at least partially cast into the concrete of the prefabricated structural element 1. Depending on the form of the prefabricated construction element 1, such a connector element 14 may for example be in the form of a pole shoe as illustrated in the embodiment shown in fig. 1 to 3, in the form of a beam shoe as illustrated in the embodiment shown in fig. 7, or in the form of a wall shoe as illustrated in the embodiment shown in fig. 4 and 5. In an embodiment of such a connection device, the anchor bolt 8 preferably, but not necessarily, passes through the opening 10 in the prefabricated structural element 1 such that the anchor bolt 8 extends into the cavity 15 in the prefabricated structural element 1, and the second nut 12 is preferably, but not necessarily, screwed onto the nut 8 inside the cavity such that the second nut 12 is received in the cavity. In such an embodiment of the connection means, the cavity is preferably, but not necessarily, at least partially provided with a further material 16 than the slurry 5 prior to the grouting step to at least partially prevent the slurry 5 from entering the cavity. At least one of, for example, mineral wool, gypsum, stucco, and lime mortar may be used as the other material 16 in the filling step. These materials are easier to remove than concrete or mortar so that the mechanical connection 3, which can be opened and closed repeatedly, can enter the cavity 15 and be opened, as illustrated in fig. 8.
In order to increase the shear force transfer capacity between the slurry 5 in the joint 4 between the prefabricated structural element 1 and the further structural element 2 while still producing an easy to disassemble connection allowing for at least re-use of the structural element 1, the prefabricated structural element 1 may be provided with at least one of a protruding structure 20 protruding into the slurry 5 in the joint between the prefabricated structural element 1 and the further structural element 2 and a cavity structure 21 protruding into the cavity structure from the slurry 5 in the joint between the prefabricated structural element 1 and the further structural element 2.
In order to increase the shear force transfer capacity between the slurry 5 in the joint 4 between the prefabricated structural element 1 and the further structural element 2 while still producing an easy detachable connection allowing for at least re-use of the structural element 1, the further structural element 2 may be provided with at least one of a protruding structure 20 protruding into the slurry 5 in the joint between the prefabricated structural element 1 and the further structural element 2 and a cavity structure 21 protruding into the cavity structure from the slurry 5 in the joint between the prefabricated structural element 1 and the further structural element 2.
In order to increase the shear force transfer capacity between the prefabricated structural element 1 and the further structural element 2 while still producing an easy-to-disassemble connection allowing for at least re-use of the structural element 1, the structural element 1 may be provided with a structure 20 extending into a cavity 21 in the slurry 5 between the prefabricated structural element 1 and the further structural element 2, as illustrated in fig. 2.
In order to increase the shear force transmission capacity between the prefabricated structural element 1 and the further structural element 2 while still producing an easy-to-disassemble connection allowing for at least re-use of the structural element 1, the structural element 1 may alternatively be provided with a structure 20 extending into a cavity 21 in the further structural element 2, as illustrated in fig. 3.
Alternatively, the shear force transfer capacity between the prefabricated structural element 1 and the further structural element 2 may be increased while still creating an easy-to-detach connection allowing at least the reuse of the structural element 1 by forming the cavity 21 in the surface 6 of the prefabricated structural element 1 such that the cavity 21 is configured to be filled with slurry 5 poured between the prefabricated structural element 1 and the further structural element 2, as illustrated in fig. 5.
Alternatively, the shear force transfer capacity between the prefabricated structural element 1 and the further structural element 2 may be increased while still producing an easily detachable connection allowing at least the reuse of the structural element 1 by forming cavities 21 in both the surface 6 of the prefabricated structural element 1 and the surface 6 of the further structural element such that both cavities 21 are configured to be filled with slurry 5 poured between the prefabricated structural element 1 and the further structural element 2, as illustrated in fig. 6.
The anchoring bolt 8 is preferably, but not necessarily, a threaded rod screwed into a threaded sleeve 17, the threaded sleeve 17 is cast into the concrete of the further structural element 2, the threaded sleeve 17 extends from the surface 6 of the further structural element 2 into the further structural element 2, and the threaded rod is anchored by means of an anchoring device 18 fastened to the threaded sleeve 17 and also cast into the concrete of the further structural element 2. Examples of this are the Peikko groupAn anchor coupling. The advantage of such a construction is that this allows the threaded rod to be removed from the threaded sleeve 17, so that there is no longer an anchor bolt 8 protruding from the further structural element 2, as illustrated in fig. 11a to 11 c. In fig. 11b and 11c, a separate tool 22 is screwed into the threaded sleeve 17 to remove the threaded sleeve 17 from the other structural element 2.
It is obvious to a person skilled in the art that as the technology advances, the basic idea of the invention can be implemented in various ways. Therefore, the present invention and its embodiments are not limited to the above-described embodiments, but they may vary within the scope of the claims.
Claims (20)
1. A method of mounting a prefabricated structural element (1) comprising concrete to another structural element (2), wherein the method comprises
A connecting step for connecting the prefabricated structural element (1) to the further structural element (2) by means of a mechanical connecting device (3) that can be opened and closed repeatedly, such that a joint (4) is formed between the prefabricated structural element (1) and the further structural element (2),
a grouting step for grouting the joint (4) by at least partially covering the joint (4) with a slurry (5) and hardening the slurry (5), an
A coating step for coating the surface (6) of the prefabricated structural element (1) covered by the grout (5) in the grouting step with a spacer (7) at least partially prior to the grouting step,
wherein the connecting step comprises providing a mechanical connecting device (3) which can be repeatedly opened and closed to comprise an anchoring bolt (8) extending from the other structural element (2),
wherein the connecting step comprises screwing a first nut (9) onto the anchor bolt (8) such that the nut is at a distance from the further structural element (2),
wherein the connecting step comprises arranging the anchor bolt (8) through an opening (10) in the prefabricated structural element (1) such that the first nut (9) is located between the further structural element (2) and the prefabricated structural element (1) and a grouting space (11) is formed between the further structural element (2) and the prefabricated structural element (1),
wherein the connecting step comprises screwing a second nut (12) onto the anchor bolt (8) to fix the prefabricated structural element (1) to the anchor bolt (8),
wherein the connecting step comprises arranging the anchor bolt (8) through an opening (10) in the prefabricated structural element (1) such that the anchor bolt (8) extends into a cavity (15) in the prefabricated structural element (1),
wherein the connecting step comprises screwing the second nut (12) to the anchor bolt (8) inside the cavity such that the second nut (12) is accommodated in the cavity,
it is characterized in that
The method additionally comprises a filling step for at least partially filling the cavity with a material (16) other than the slurry (5) prior to the grouting step to at least partially prevent the slurry (5) from entering the cavity, and
at least one of mineral wool, gypsum, stucco and lime mortar is used as the other material (16) in the filling step.
2. The method according to claim 1, characterized in that
The separating means (7) is arranged to follow at least partially an interface between the slurry (5) configured to cover the prefabricated structural element (1) in the joint (4) and the prefabricated structural element (1).
3. A method according to claim 1 or 2, characterized in that
The coating step additionally comprises coating the surface (6) of the further structural element (2) covered by the slurry (5) with a spacer (7) at least partially prior to the grouting.
4. A method according to claim 3, characterized in that
The separation means (7) is arranged to follow at least partially an interface between the slurry (5) configured to cover the further structural element (2) in the joint (4) and the further structural element (2).
5. A method according to claim 1 or 2, characterized in that
-providing a threaded rod as an anchor bolt (8), which threaded rod is screwed into a threaded sleeve (17), which threaded sleeve (17) is cast into the concrete of the further structural element (2) such that the threaded sleeve (17) extends from the surface (6) of the further structural element (2) into the further structural element (2), and-anchoring the threaded rod by means of an anchoring device (18) fastened to the threaded sleeve (17) and also cast into the concrete of the further structural element (2).
6. A method according to claim 1 or 2, characterized in that
-providing the coating step with a separating device (7), the separating device (7) being a separate device from the prefabricated structural element (1) and being a separate device from the further structural element (2).
7. A method according to claim 1 or 2, characterized in that
-providing the prefabricated structural element (1) with a protruding structure (20), the protruding structure (20) being configured to protrude into the slurry (5) in the joint between the prefabricated structural element (1) and the further structural element (2).
8. A method according to claim 1 or 2, characterized in that
-providing the prefabricated structural element (1) with a cavity structure (21), the slurry (5) from the junction between the prefabricated structural element (1) and the further structural element (2) being configured to protrude into the cavity structure (21).
9. A method according to claim 1 or 2, characterized in that
-providing the further structural element (2) with a protruding structure (20), the protruding structure (20) being configured to protrude into the slurry (5) in the joint between the prefabricated structural element (1) and the further structural element (2).
10. A method according to claim 1 or 2, characterized in that
-providing the further structural element (2) with a cavity structure (21), the slurry (5) from the junction between the prefabricated structural element (1) and the further structural element (2) being configured to protrude into the cavity structure (21).
11. Connection device between a prefabricated structural element (1) comprising concrete and a further structural element (2), wherein in the connection device
The prefabricated structural element (1) is connected to the further structural element (2) by means of a mechanical connection device (3) that can be opened and closed repeatedly, so that a joint (4) is formed between the prefabricated structural element (1) and the further structural element (2), and
the joint (4) is at least partially covered by a slurry (5) which is allowed to harden,
there is a separation means (7) between the surface (6) of the prefabricated structural element (1) at least partially covered by the grout (5) and the grout (5) at least partially covering the joint (4) and allowed to harden,
the mechanical connection device (3) which can be opened and closed repeatedly comprises an anchor bolt (8) extending from the other structural element (2),
a first nut (9) is screwed onto the anchor bolt (8) such that the nut is at a distance from the further structural element (2),
the anchor bolt (8) is passed through an opening (10) in the prefabricated structural element (1) such that the first nut (9) is located between the further structural element (2) and the prefabricated structural element (1) and forms a grouting space (11) between the further structural element (2) and the prefabricated structural element (1), and
a second nut (12) is screwed onto the anchor bolt (8) to fix the prefabricated structural element (1) to the anchor bolt (8),
the anchor bolt (8) passes through the opening (10) in the prefabricated structural element (1) such that the anchor bolt (8) extends into a cavity (15) in the prefabricated structural element (1) and
the second nut (12) is screwed onto the anchor bolt (8) inside the cavity such that the second nut (12) is accommodated in the cavity,
it is characterized in that the method comprises the steps of,
the cavity is additionally at least partially filled with a material (16) other than the slurry (5) to at least partially prevent the slurry (5) from entering the cavity, and
the other material (16) includes at least one of mineral wool, gypsum, stucco, and lime mortar.
12. The connection device of claim 11, wherein
The separating means (7) follow at least partially the interface between the slurry (5) covering the prefabricated structural element (1) in the joint (4) and the prefabricated structural element (1).
13. A connection device according to claim 11 or 12, characterized in that
The separating means (7) is located between a surface (6) of the further structural element (2) at least partially covered by the grout (5) and the grout (5) at least partially covering the joint (4) and being allowed to harden.
14. A connection device according to claim 11 or 12, characterized in that
The separation means (7) follow at least partially the interface between the slurry (5) covering the further structural element (2) in the joint (4) and the further structural element (2).
15. A connection device according to claim 11 or 12, characterized in that
The anchor bolt (8) is a threaded rod which is screwed into a threaded sleeve (17), the threaded sleeve (17) being cast into the concrete of the further structural element (2) such that the threaded sleeve (17) extends from the surface (6) of the further structural element (2) into the further structural element (2), and the threaded rod being anchored by means of an anchoring device (18) which is fastened to the threaded sleeve (17) and is also cast into the concrete of the further structural element (2).
16. A connection device according to claim 11 or 12, characterized in that
The separating device (7) is a device separate from the prefabricated structural element (1) and from the further structural element (2).
17. A connection device according to claim 11 or 12, characterized in that
The prefabricated structural element (1) is provided with protruding structures (20), which protruding structures (20) protrude into the slurry (5) in the joint between the prefabricated structural element (1) and the further structural element (2).
18. A connection device according to claim 11 or 12, characterized in that
The prefabricated structural element (1) is provided with a cavity structure (21), into which cavity structure (21) the slurry (5) from the joint between the prefabricated structural element (1) and the further structural element (2) protrudes.
19. A connection device according to claim 11 or 12, characterized in that
The further structural element (2) is provided with a protruding structure (20), which protruding structure (20) protrudes into the slurry (5) in the joint between the prefabricated structural element (1) and the further structural element (2).
20. A connection device according to claim 11 or 12, characterized in that
The further structural element (2) is provided with a cavity structure (21), into which cavity structure (21) the slurry (5) from the joint between the prefabricated structural element (1) and the further structural element (2) protrudes.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FI20195517 | 2019-06-14 | ||
| FI20195517 | 2019-06-14 | ||
| PCT/FI2020/050363 WO2020249852A1 (en) | 2019-06-14 | 2020-05-29 | Method for mounting a prefabricated construction element to another construction element and connection arrangement |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114174610A CN114174610A (en) | 2022-03-11 |
| CN114174610B true CN114174610B (en) | 2024-04-09 |
Family
ID=71069869
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202080043599.0A Active CN114174610B (en) | 2019-06-14 | 2020-05-29 | Method and connecting device for mounting a prefabricated structural element to another structural element |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP3983618B1 (en) |
| KR (1) | KR102619755B1 (en) |
| CN (1) | CN114174610B (en) |
| ES (1) | ES2961083T3 (en) |
| HU (1) | HUE063667T2 (en) |
| PL (1) | PL3983618T3 (en) |
| WO (1) | WO2020249852A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114960390A (en) * | 2022-06-01 | 2022-08-30 | 中铁第四勘察设计院集团有限公司 | Pre-embedded type void grouting device and grouting construction method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3875710A (en) * | 1972-03-09 | 1975-04-08 | Descon Concordia Systems Ltd | Structural system and method employed therein |
| ITMI20051565A1 (en) * | 2005-08-11 | 2007-02-12 | Edilmatic S R L | INTERCONNECTION DEVICE FOR CONNECTING A BEAM TO A PREFABRICATED PILLAR IN REINFORCED CONCRETE AND METHOD TO CONNECT THE BEAM TO THE PILLAR BY MEANS OF THIS DEVICE |
| ITVR20100206A1 (en) * | 2010-10-29 | 2012-04-30 | Sar Costruzioni Prefabbricate S R L | FOUNDATION STRUCTURE PARTICULARLY FOR PREFABRICATED BUILDINGS |
| CN103620130A (en) * | 2011-06-20 | 2014-03-05 | 佩克集团有限公司 | Connecting device for joining adjacent pre-cast concrete sections and method for joining a first and a second pre-cast concrete section |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004017006B4 (en) * | 2004-04-02 | 2012-03-29 | Aloys Wobben | Method of erecting a tower |
| DE102004017008B4 (en) * | 2004-04-02 | 2009-10-22 | Aloys Wobben | Method for erecting a tower |
| US8037651B2 (en) * | 2008-03-19 | 2011-10-18 | Clifford Dent | Ground anchor assembly |
| US20110131899A1 (en) * | 2010-04-30 | 2011-06-09 | Stefan Voss | Apparatus and method for producing a concrete foundation |
-
2020
- 2020-05-29 CN CN202080043599.0A patent/CN114174610B/en active Active
- 2020-05-29 HU HUE20731524A patent/HUE063667T2/en unknown
- 2020-05-29 PL PL20731524.3T patent/PL3983618T3/en unknown
- 2020-05-29 ES ES20731524T patent/ES2961083T3/en active Active
- 2020-05-29 EP EP20731524.3A patent/EP3983618B1/en active Active
- 2020-05-29 KR KR1020217040790A patent/KR102619755B1/en active IP Right Grant
- 2020-05-29 WO PCT/FI2020/050363 patent/WO2020249852A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3875710A (en) * | 1972-03-09 | 1975-04-08 | Descon Concordia Systems Ltd | Structural system and method employed therein |
| ITMI20051565A1 (en) * | 2005-08-11 | 2007-02-12 | Edilmatic S R L | INTERCONNECTION DEVICE FOR CONNECTING A BEAM TO A PREFABRICATED PILLAR IN REINFORCED CONCRETE AND METHOD TO CONNECT THE BEAM TO THE PILLAR BY MEANS OF THIS DEVICE |
| ITVR20100206A1 (en) * | 2010-10-29 | 2012-04-30 | Sar Costruzioni Prefabbricate S R L | FOUNDATION STRUCTURE PARTICULARLY FOR PREFABRICATED BUILDINGS |
| CN103620130A (en) * | 2011-06-20 | 2014-03-05 | 佩克集团有限公司 | Connecting device for joining adjacent pre-cast concrete sections and method for joining a first and a second pre-cast concrete section |
Also Published As
| Publication number | Publication date |
|---|---|
| PL3983618T3 (en) | 2023-10-09 |
| EP3983618A1 (en) | 2022-04-20 |
| EP3983618C0 (en) | 2023-07-26 |
| CN114174610A (en) | 2022-03-11 |
| ES2961083T3 (en) | 2024-03-08 |
| EP3983618B1 (en) | 2023-07-26 |
| WO2020249852A1 (en) | 2020-12-17 |
| HUE063667T2 (en) | 2024-01-28 |
| KR102619755B1 (en) | 2023-12-29 |
| KR20220009418A (en) | 2022-01-24 |
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