EP4253299A1 - Procédé de rééquipement d'un bâtiment avec une installation d'ascenseur et module de cage d'escalier - Google Patents

Procédé de rééquipement d'un bâtiment avec une installation d'ascenseur et module de cage d'escalier Download PDF

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Publication number
EP4253299A1
EP4253299A1 EP23162101.2A EP23162101A EP4253299A1 EP 4253299 A1 EP4253299 A1 EP 4253299A1 EP 23162101 A EP23162101 A EP 23162101A EP 4253299 A1 EP4253299 A1 EP 4253299A1
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EP
European Patent Office
Prior art keywords
stairwell
staircase
building
module
prefabricated
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.)
Pending
Application number
EP23162101.2A
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German (de)
English (en)
Inventor
Manfred Greschbach
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Individual
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Individual
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Publication date
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Publication of EP4253299A1 publication Critical patent/EP4253299A1/fr
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B19/00—Mining-hoist operation
    • 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
    • E04G23/00—Working measures on existing buildings
    • E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
    • E04G23/0266—Enlarging

Definitions

  • the invention relates to a method for retrofitting a building with an elevator system according to the preamble of claim 1 and a stairwell module for use in such a method.
  • This process is used to retrofit a building that has multiple floors. These each have at least one floor door, with the floor doors being accessible via a common staircase.
  • the stairwell lies within the building shell and borders on a front side of the building, so that that section of the building shell front side that coincides with the front side of the stairwell forms a stairwell facade.
  • Each floor of the building has a main landing for the floor doors in the stairwell. Between each floor there is an intermediate landing arranged on the stairwell facade for a two-flight staircase, which connects the intermediate landings and the main landings.
  • Elevator systems for attachment to a building or for retrofitting a building are usually used in older buildings where barrier-free access has not yet been taken into account.
  • older residential buildings with a number of residential units spread over several floors, but also administrative buildings and commercial buildings, are often built in the construction method mentioned at the beginning; They have a plurality of floors, which are divided in particular into several residential units or other self-contained units and have corresponding floor doors that are accessible via a common staircase.
  • This design integrates the staircase at the front of the building, with an entrance door at ground level and a two-flight staircase that provides access to all floor doors via intermediate landings and main landings on each floor.
  • a method for retrofitting a building with an elevator system in which a prefabricated elevator system is placed on a foundation in front of the stairwell facade.
  • the front of the building is opened by removing the stairwell facade and a one-piece or multi-part frame is placed on the stairwell facade, the frame being equipped with one elevator platform that is essentially the width of the stairwell on each floor at the height of the main platform of the stairwell.
  • This frame is an assembled outer platform element, each of which is designed floor-high as a table-shaped prefabricated element with a plate-shaped outer platform and several table leg-like supports.
  • the intermediate platforms of the stairwell are removed and the two-flight staircase is dismantled.
  • Bridges are then installed in the stairwell, which extend horizontally from the main landings to the elevator landings and only partially cover the floor plan of the stairwell in projection in order to leave clear space for a single-flight staircase that connects the main landings and the elevator landings.
  • the prefabricated elevator system is then placed on the staircase prepared in this way, which is now provided with a single flight of stairs, aligned and connected to the elevator platforms or the external platform elements.
  • the result is a stairwell in which the doors of the elevator system are connected to the floor doors via the elevator platforms, the walkways and the main platforms and are therefore barrier-free.
  • the present invention is based on this prior art, and it has been found that inserting the stairwell module is quite complex and not optimal in terms of time because of the supports and auxiliary rails required for this as well as because of the high weights that have to be handled.
  • the present invention is therefore based on the object of simplifying a method of the type described above and of providing a prefabricated staircase module for use in such a method.
  • a first part of the task is solved by a method with the features of claim 1, advantageous developments of the method according to the invention being set out in claims 2 to 8.
  • the elevator platforms are not prefabricated together with the elevator system and placed together with it on the front of the building and connected to the walkways, but are installed separately in the stairwell or if necessary , such as in the prior art according to DE 203 00 662 U1 described, with frames, or, modifying the state of the art in this respect, a single frame, placed on the foundation and attached to the webs.
  • the prefabricated elevator system is then placed on the foundation and attached to the elevator platforms.
  • the elevator platforms can be installed in method step (g ⁇ ) together with the webs, as is the case, for example, in the prior art EP 3 712 355 A1 was proposed. All of these alternatives are within the scope of the present invention and some are already known.
  • the essential novelty of the method according to the invention lies in method step (i), after which the foundation and/or the building is provided with a pivot bearing, and for method steps (e) and (f) a prefabricated staircase module with webs and single-flight stairs is created using this pivot bearing , or for process steps (e), (f) and (g ⁇ ) a prefabricated stairwell module with walkways, single-flight stairs and elevator landings is swung into the stairwell in order to set it up in the stairwell and connect it to the main landings there.
  • the inventive pivoting of the stairwell module which essentially forms the new stairwell with webs and single-flight stairs and preferably with elevator platforms, represents a considerable simplification compared to inserting such a stairwell module.
  • the stairwell module is usually driven to the construction site lying on a truck and, for example placed there with the help of a crane. This can be done in such a way that bearing points for the pivot bearing are provided on the stairwell module, which are placed on the pivot bearings when the stairwell module is placed, after which the stairwell module is pivotably fastened in the pivot bearings.
  • Setting up the stairwell module for example again by means of a crane, leads to a pivoting movement about the pivot axis formed by the pivot bearing, so that the stairwell module is easily pivoted or adjusted into the gutted stairwell of the building.
  • pivot bearings for the stairwell module can be carefully aligned in advance so that No further adjustment measures or complex alignment are necessary when the stairwell module is swiveled in.
  • a foundation frame with a pivot bearing for the staircase module is then prefabricated, in accordance with those documented by the measurement Staircase dimensions.
  • the foundation frame consists in particular of at least one steel material, so that it can be prefabricated particularly easily and precisely. If it is then used as part of the foundation in step (a), the pivot bearings for the stairwell module are already on site and precisely aligned when the foundation is finished.
  • the measurement of the geometric dimensions of the stairwell is preferably carried out with reference to at least two reference points, with the pivot bearing for the stairwell module, or possibly, if present, the foundation frame with a pivot bearing then being aligned on site with the help of these reference points on the stairwell facade.
  • At least two points on the front of the building in the area of the ground are preferably chosen as reference points, i.e. near the ground or on the ground or below the ground surface.
  • the foundation frame if present, can then be attached directly or indirectly to these reference points. The same applies to a separate pivot bearing if a foundation frame is not to be used.
  • a prefabricated staircase module can be used, which is already provided with elevator platforms for each floor.
  • a frame with an elevator platform for each floor can be placed on the foundation after the stairwell module has been placed in the gutted stairwell and before the prefabricated elevator system is also placed on the foundation.
  • the prefabricated elevator system can already be equipped with an elevator platform for each floor.
  • the already mentioned foundation frame can be used as part of the method according to the invention and anchored with a pile foundation in front of the stairwell facade. It offers particular advantages if the foundation frame is used as a template for inserting bored piles into the ground.
  • a pile foundation offers the advantage that further concreting work is unnecessary, as the foundation frame transfers the weight forces it absorbs to the ground via the bored piles.
  • a further advantage can arise from the fact that buildings of this type are usually provided with supply lines that run directly in front of the stairwell at a depth of around 1.50 m, i.e. exactly at the point where the foundation for the elevator system must be provided. so that conventional excavation for a conventional concrete foundation carries the risk of damaging utility lines.
  • a prefabricated stairwell module with single-flight stair sections which are provided with at least one hinge on which and around which at least one foldable stair section of the single-flight staircase can be pivoted.
  • These foldable stair sections are folded down before the stairwell module is swiveled in, especially during transport, and are folded out to connect to the main landings.
  • Such hinges can also be provided on the webs of the prefabricated stairwell module, on which and around which at least one foldable web section can be pivoted.
  • Such a stairwell module is easier to transport thanks to the folding options described, since the space required for this is reduced by folding it down. This can ensure that the stairwell module is transported horizontally on a truck, in particular together with the truck does not exceed the permissible height of 4 m, so that no special permit is required to transport the stairwell module.
  • the staircase module according to the invention for use in the method according to the invention comprises a number of horizontally extending webs which are provided for connecting a main landing of a floor of a building with the corresponding floor opening of an elevator system subsequently placed in front of the building, in particular via an elevator landing.
  • the stairwell module further comprises a number of single-flight stair sections, which are intended to connect a main landing or a web assigned to it with an elevator landing or web on an adjacent floor, depending on whether the single-flight stair sections have straight entrances and exits or alternatively quarter-turn entrances and exits exhibit.
  • the staircase module according to the invention further comprises a support structure for the webs and the single-flight staircase sections.
  • This supporting structure preferably also takes on the function of a railing in the finished stairwell.
  • the stairwell module is provided with at least two bearing points for a pivot bearing for pivoting into a gutted stairwell of the building.
  • Both the single-flight stair sections of the stairwell module and the webs or the support structure can be provided with at least one hinge for folding down.
  • the staircase module according to the invention is preferably prefabricated in steel construction. If desired, it can also include an elevator platform on each floor.
  • FIG. 1 shows building 1 still in its original position:
  • Building 1 includes a basement 2 and four floors 3, 3.1, 3.2, 3.3 as well as an attic 3.4.
  • In the stairwell facade 8 there are windows 9 for illuminating the stairwell 5 and a front door 10.
  • the stairwell 5 is bounded at the top by a roof 11.
  • the front door 10 leads to a first intermediate landing 12, from which the main landing 6 for the first floor 3, which forms the ground floor, can be reached via a first stair section 13 of a two-flight staircase.
  • a second stair section 14 of the two-flight staircase leads from the intermediate landing 12 to the basement 2.
  • the two-flight staircase of the stairwell 5 connects with its first half of the staircase, which consists of the first staircase sections 13.1, 13.2..., and its second half of the staircase, which is formed from the second stair sections 14.1, 14.2..., the main landings 6, 6.1, 6.2..., each via intermediate landings 12, 12.1, 12.2... between the floors.
  • the intermediate landings 12, 12.1, 12.2... adjoin the stairwell facade 8 from the inside.
  • a foundation 15 has already been made in front of the stairwell facade 8.
  • This foundation 15 consists of a prefabricated foundation frame 16 made of steel, which transfers its load into the ground via bored piles 17 in the form of a pile foundation. These drilled piles 17 were inserted into the ground in a manner known per se, after placing and aligning the foundation frame 16, using appropriate drilling templates that are present in the foundation frame 16.
  • FIG. 2 shows this in a top view from above:
  • the foundation frame specifies the places in which the bored piles 17 are placed in the ground. In particular, this can also be done in such a way that the bored piles 17 are placed outside the area in front of the stairwell 5 of the building 1 in which supply lines lead into the building 1.
  • the foundation frame 16 can be made significantly wider and the bored piles 17 can be attached to locations that are to the right and left of the stairwell 5.
  • the foundation frame 16 is attached to two reference points 18 on the front 7 of the building 1. These reference points 18 were also the reference points for carefully measuring the stairwell 5 in order to be able to prefabricate the foundation frame 16, but also all other auxiliary devices and installations for the stairwell 5, with precise dimensions.
  • the foundation frame 16 is automatically correctly aligned, then using recordings and attachment points (in Figure 2 not shown) in particular to align a prefabricated elevator system exactly towards the stairwell 5 when setting it up on the foundation frame 16.
  • FIG 1 a pivot bearing 19 for a stairwell module (not shown here) can be seen, the pivot bearing 19 being produced together with the foundation frame 16 during prefabrication or firmly connected to it has been.
  • the foundation frame 16 is also provided with support points for an auxiliary scaffolding 20, so that this auxiliary scaffolding 20 can also be positioned exactly aligned with the front side 7 of the building 1 with respect to the reference points 18.
  • Shows more about this Figure 3 In Figure 3 a section of the front 7 of the building 1 is shown in a side view. The front side 7 with the roof 11 and the stairwell facade 8, which is to be removed according to the invention, are indicated.
  • the auxiliary scaffolding 20 consists of five sections, each of which is formed from steel rails 21 and is connected to one another with releasable hinges 22. A number of cross struts 23 ensure stabilization and complete the steel rails 21 to form the auxiliary scaffolding 20.
  • the auxiliary scaffolding 20 stands on corresponding mounting points of the foundation frame 16.
  • the individual sections of the auxiliary scaffolding 20 have each been attached to the stairwell facade 8 using dowels 24, the dowels, as in Figure 1 can be seen, where an intermediate platform 12 is arranged behind the stairwell facade 8, extending into the intermediate platform 12.
  • the individual, floor-high sections of the auxiliary scaffolding 20 are each firmly connected to a floor-high section of the stairwell facade 8 and the associated intermediate platform 12.
  • a climbing platform 25 runs on the steel rails 21 of the auxiliary scaffolding 20. How better in turn Figure 1 can be seen, two concrete saws 26 sit on this climbing platform 25 in order to separate the stairwell facade 8 from the rest of the front 7 of the building 1. The saw cut runs vertically and is guided by the climbing platform 25 and thus by the precisely aligned auxiliary scaffolding 20.
  • the saw bar of the concrete saw 26 is chosen so long that not only the stairwell facade 8 is cut off, but also the intermediate platforms 12, which from then on are only held on the auxiliary scaffolding 20 by means of the dowels 24.
  • Figure 1 is on the fourth floor 3.3 (3rd floor). shown how an already separated section of the stairwell facade 8 together with the intermediate platform 12 hanging on it has been pivoted forward, away from the front side 7 of the building 1, by means of the auxiliary scaffolding 20 which can be swung out on the hinge 22 and therefore with the help of a crane 27, after loosening of the hinge 22, can be lifted away from the building 1 and placed in a designated storage location. Meanwhile, the concrete saws 26 continue to run with a further downward movement of the climbing platform 25 in order to cut out the stairwell facade 8 in a highly time-efficient manner.
  • Figure 4 shows building 1 Figure 1 in a later stage of the process.
  • the foundation 15 has been laid by prefabrication of the foundation frame 16 and setting of bored piles 17 as well as by aligning and fastening the foundation frame 16 to the reference points 18 (see also Figure 1 ) has been manufactured
  • the auxiliary scaffolding 20 has been attached to the stairwell facade 8 and has been successively removed in sections together with separated pieces of the stairwell facade 8 (also Figure 1 ), and in the old staircase 5 both the intermediate landings 5 and the two-flight staircase sections 13, 14 have been removed, as in Figure 4 to see, in stairwell 5 only the main landings 6... remained; the stairwell facade 8 has been removed and the stairwell 5 is therefore open to the front.
  • a prefabricated stairwell module 28 which is shown here schematically twice, i.e. at different points in time, is brought to the construction site by means of a truck (not shown here) and placed on the foundation 15.
  • the prefabricated staircase module 28 has two bearing points 29 with which it is pivotally fastened in the pivot bearings 19 of the foundation frame 16. With the help of the crane 27, the stairwell module 28 is then pivoted into the stairwell 5 about a pivot axis defined by the pivot bearings 19, as indicated by an arrow for the pivoting direction 30.
  • the stairwell module 28 could be prefabricated in a coordinate system adapted to the specific conditions of the building 1, with the pivot bearings being precisely aligned in advance 19 ensure an exact alignment of the stairwell module 28 to the specific stairwell 5, so that no on-site adjustment measures are necessary when the stairwell module 28 is swiveled in.
  • FIG. 5 a partially cut top view of the stairwell 5, also illustrates, the stairwell module 28 with single-flight stair sections 31, webs 32 and a support structure designed as a railing 37 is prefabricated so that it can be transported with a conventional truck, i.e. in particular not together with the truck higher than 4 m.
  • a conventional truck i.e. in particular not together with the truck higher than 4 m.
  • both the single-flight stair sections 31 and the webs 32 are provided with hinges, whereby the single-flight stair sections 31 are divided into a fixed stair section 33 and a foldable stair section 34.
  • the webs 32 are accordingly also divided into a fixed web section 35 and a foldable web section 36.
  • both the foldable stair sections 34 and the foldable web sections 36 are folded down, as shown in Figure 4 is shown.
  • the railing 37 is also divided by means of hinges into a fixed railing section 38 and a folding railing section 39, the folding railing section 39, as shown in Figure 5 is best visible, is also folded down for transport in order to minimize the overall height of the stairwell module 28.
  • a fully functional, prefabricated elevator system 41 which is already equipped with elevator platforms 42 and an elevator car 44, is driven to the construction site with a truck 43 and, with the help of the crane 27, is placed on the foundation 15, more precisely: on defined and reference points 18 precisely aligned contact points of the foundation frame 16 are set up. Since everything has been measured in advance in relation to the two reference points 18 and the prefabrication was also carried out in this coordinate system, the elevator platforms 42 now rest on the webs 32 and single-flight stair sections 31 of the stairwell module 28 without further alignment and can be connected to them.
  • Figure 7 shows a view of building 1 as in Figure 1 , wherein the method according to the invention for retrofitting the building 1 with the elevator system 41 is completed.
  • People who travel in the elevator car 44 to a specific floor 3.3, in this case the 1st floor can reach the main landing 6 of the 1st floor barrier-free from the elevator system 41 via the associated elevator platform 42 and the associated footbridge 32.
  • the individual floors can be reached on foot via single-flight stair sections 31, each of which runs from a main landing 6 to an elevator landing 42 on the adjacent floor.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
EP23162101.2A 2022-03-30 2023-03-15 Procédé de rééquipement d'un bâtiment avec une installation d'ascenseur et module de cage d'escalier Pending EP4253299A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102022107590.7A DE102022107590A1 (de) 2022-03-30 2022-03-30 Treppenhausmodul und Verfahren zum Nachrüsten eines Gebäudes mit einer Aufzugsanlage

Publications (1)

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EP4253299A1 true EP4253299A1 (fr) 2023-10-04

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Application Number Title Priority Date Filing Date
EP23162101.2A Pending EP4253299A1 (fr) 2022-03-30 2023-03-15 Procédé de rééquipement d'un bâtiment avec une installation d'ascenseur et module de cage d'escalier

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EP (1) EP4253299A1 (fr)
DE (1) DE102022107590A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8421783U1 (de) * 1984-07-20 1984-10-04 Hans Schwörer GmbH & Co, 7410 Reutlingen Aufzugsschacht aus beton fuer ein mehrgeschossiges gebaeude
DE19633636A1 (de) 1996-08-21 1998-02-26 Grohs Gerwald Dipl Bauing Aufzugsschächte, Aufzugskabine und Verbindungsgänge als Raumzelle
DE19954649A1 (de) * 1999-11-13 2001-06-13 Joachim Geipel Verfahren und Vorrichtung zur nachträglichen Montage von Aufzügen an Gebäuden
DE20300662U1 (de) 2003-01-16 2003-04-10 Bwh Construction Gmbh Baukonstruktion zur nachträglichen Anbindung eines Außenaufzuges an ein Treppenhaus eines mehrgeschossigen Gebäudes
EP3315448A2 (fr) 2016-10-28 2018-05-02 Manfred Greschbach Installation d'ascenseur
EP3712355A1 (fr) 2019-03-20 2020-09-23 Manfred Greschbach Procédé d'équipement ultérieur d'un bâtiment d'une installation d'ascenseur et ensemble de composants destiné à la mise en uvre du procédé

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8421783U1 (de) * 1984-07-20 1984-10-04 Hans Schwörer GmbH & Co, 7410 Reutlingen Aufzugsschacht aus beton fuer ein mehrgeschossiges gebaeude
DE19633636A1 (de) 1996-08-21 1998-02-26 Grohs Gerwald Dipl Bauing Aufzugsschächte, Aufzugskabine und Verbindungsgänge als Raumzelle
DE19954649A1 (de) * 1999-11-13 2001-06-13 Joachim Geipel Verfahren und Vorrichtung zur nachträglichen Montage von Aufzügen an Gebäuden
DE20300662U1 (de) 2003-01-16 2003-04-10 Bwh Construction Gmbh Baukonstruktion zur nachträglichen Anbindung eines Außenaufzuges an ein Treppenhaus eines mehrgeschossigen Gebäudes
EP3315448A2 (fr) 2016-10-28 2018-05-02 Manfred Greschbach Installation d'ascenseur
EP3712355A1 (fr) 2019-03-20 2020-09-23 Manfred Greschbach Procédé d'équipement ultérieur d'un bâtiment d'une installation d'ascenseur et ensemble de composants destiné à la mise en uvre du procédé

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Publication number Publication date
DE102022107590A1 (de) 2023-10-05

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