EP0854254A1 - Procédé pour établir un support de coffrage métallique - Google Patents

Procédé pour établir un support de coffrage métallique Download PDF

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Publication number
EP0854254A1
EP0854254A1 EP97100721A EP97100721A EP0854254A1 EP 0854254 A1 EP0854254 A1 EP 0854254A1 EP 97100721 A EP97100721 A EP 97100721A EP 97100721 A EP97100721 A EP 97100721A EP 0854254 A1 EP0854254 A1 EP 0854254A1
Authority
EP
European Patent Office
Prior art keywords
shutter plates
process according
outside
building
plates
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.)
Withdrawn
Application number
EP97100721A
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German (de)
English (en)
Inventor
Fu-Chang Liao
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to EP97100721A priority Critical patent/EP0854254A1/fr
Publication of EP0854254A1 publication Critical patent/EP0854254A1/fr
Withdrawn legal-status Critical Current

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    • 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
    • E04G11/00—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
    • E04G11/02—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for rooms as a whole by which walls and floors are cast simultaneously, whole storeys, or whole buildings

Definitions

  • the present invention is related to a process for forming a steel shuttering frame for constructing a building with a reinforced concrete structure.
  • a conventional shuttering frame consists of a plurality of wooden shutter plates which have the following disadvantages. Wooden shutter plates have a tendency to be easily damaged since they are relatively weak. Furthermore, the surface of the wooden shutter plate is not smooth enough so that after the wooden shutter plates are removed from the completed concrete structure, the surface of the concrete always needs further processing, for example, plastering. Moreover, each wooden shutter plate has a different performance about its ability to withstand the load of concrete so that when the concrete is poured into the conventional shuttering frame, an unpredicted deformation of the shutter(s) may happen, which will cause a leakage of the concrete slurry from the shuttering frame.
  • the present invention is disclosed to obviate/mitigate the above mentioned disadvantages of the conventional wooden shuttering frame.
  • a further objective of the present invention is to provide a process to construct a steel shuttering frame constituted of steel shutter plates having a uniform quality so that an unpredicted deformation of the shutter(s) will not happen when concrete slurry is poured into the steel shuttering frame constructed in accordance with the present invention.
  • Fig. 1 shows a flow chart of the present invention for constructing a steel shuttering frame.
  • the present invention generally comprises seven main steps of operation respectively indicated by reference numbers 11, 12, 13, 14, 15, 16 and 17.
  • Reference number 11 represents setting up a supporting stand for the shuttering frame.
  • reference number 12 refers to mounting upper shutter plates 3 (also referring to Fig. 2) for forming a floor portion of a building on a top of the supporting stand and connecting these upper shutter plates 3 together.
  • Reference number 13 refers to connecting inside shutter plates 5 for forming inner surfaces of side walls of the building and side sheets 4 together, and, then, mounting the inside shutter plates 5 on sides of the supporting stand by inserting a top side extension of the side sheets 4 into a location between the top of the supporting stand and the upper shutter plates.
  • Reference number 14 refers to setting up outside shutter plates 6 for forming outer surfaces of the side walls of the building.
  • Reference 15 refers to mounting tubular spacers 7 between the inside and outside shutter plates 5, 6.
  • Reference number 16 refers to extending bolts 70 from an inside of the inside plates 5 through the tubular spacers 7 and threadedly engaging the bolts 70 with nuts 71 from an outside of the outside plates 6.
  • reference number 17 refers to tightly screwing the nuts 71 onto the bolts 70 thereby fixedly connecting the inside and outside plates 5 and 6 together.
  • the present process for constructing a steel shuttering frame includes the following steps of operation.
  • the first step of the present process is to set up a supporting stand.
  • the supporting stand is composed of several (four in this embodiment) sheeting supports 1, supporting beams 2 and H-shaped reinforcing beams 20.
  • the connections among the sheeting supports 1, the supporting beams 2 and the reinforcing beams 20 are obtained by bolts and nuts so that the whole supporting stand can be disassembled to facilitate a transportation and storage thereof.
  • Each sheeting support 1 is divided into a rod and a base wherein the rod is threadedly connected with the base so that the height of the sheeting support 1 can be adjusted by screwing the rod into or out of the base.
  • upper steel shutter plates 3 for forming a floor portion of a building with a reinforced concrete structure are laid on the H-shaped reinforcing beams 20 of the supporting stand.
  • Each upper shutter plate 3 is configured to have a generally rectangular shape with a stepped end for cooperating with the stepped ends of other upper shutter plates 3 to define a recess for forming a beam of the building.
  • Each upper shutter plate 3 is arranged to closely contact and align with its corresponding neighboring upper shutter plates. If there is any gap between two neighboring upper shutter plates 3, plaster can be used to fill the gap.
  • Each upper shutter plate 3 has two parallel rows of holes 30 on its two longitudinal side edges. Each hole 30 is defined by a threaded periphery. Hereafter, the holes 30 are termed as threaded holes 30.
  • a plurality of connecting steel tabs 31 and screws 32 are used to connect two longitudinally neighboring upper shutter plates 3 together by extending the screws 32 through two holes 33 defining on the tab 31 and threadedly engaging the screws 32 respectively with a corresponding pair of threaded holes 30 respectively on the two longitudinally neighboring upper shutter plates 3 (also referring to Fig 4).
  • the distance between the holes 33 of the tab 31 is designed to be the same as that between the corresponding pair of threaded holes 30 respectively in the two longitudinally neighboring upper shutter plates 3.
  • the quantity of the connecting tabs 31 necessary to be used to connect two neighboring upper shutter plates 3 together is decided by the actual operating condition of the building. For example, when the floor portion of the building is designed to have a larger thickness, the quantity of the tabs 31 necessary to connect the upper shutter plates 3 together should be in a larger number accordingly thereby to create a firmer connection between the upper shutter plates in order to resist a larger pressure caused by the concrete poured onto the upper shutter plates 3.
  • the upper shutter plates 3 can have smooth top and bottom surfaces.
  • the bottom surface which is not in contact with concrete, can be formed to have reinforcing ribs 301 to enhance the rigidity of the upper shutter plates 3.
  • the inside shutter plates 5 are used to form inner surfaces of side walls of the building.
  • the side sheets 4 are used to mount the inside shutter plates 5 on sides of the supporting stand by inserting a top side extension of the side sheets 4 into a location between the upper shutter plates 3 and end portions of the reinforcing beams 20 of the supporting stand (better seen in Fig. 3). Due to the weight of the upper shutter plates 3, the side sheets 4 together with the inside shutter plates 5 can be fixed in position.
  • Three parallel rows of holes 50 are defined on each of the inside shutter plates 5. Each hole 50 is defined by a threaded periphery. Hereafter the holes 50 are termed as threaded holes 50.
  • two neighboring inside plates 5 are connected together by using tabs 31 and screws 32.
  • the screws 32 extend through the holes 33 of the tab 31 and threadedly engage a pair of corresponding threaded holes 50 located respectively on end sides of the two neighboring inside shutter plates 5, wherein the end sides of the two neighboring inside shutter plates 5 are aligned and contacted with each other. If there is any gap exited between two neighboring inside shutter plates 5, plaster can be used to fill the gap.
  • each inside shutter plate 5 has a cutout at one of its top corners.
  • the cutout is configurated to cooperate with the stepped end of the corresponding upper shutter plate 3, with which the inside shutter plate 5 is contacted, thereby to form the recess for forming the beam of the building.
  • outside shutter plates 6 are set up around the inside shutter plates 5 after a necessary reinforcement and piping for water, electric or telephone wire has been laid around the inside shutter plates 5 and on the upper shutter plates 3.
  • each of the outside shutter plates 6 also have three parallel rows of holes 72.
  • Each hole 72 is defined by a threaded periphery.
  • the holes 72 are termed as threaded holes 72.
  • the outside shutter plates 6 are used for forming outer surfaces of the side walls of the building. Two neighboring outside shutter plates 6 are connected together in a manner like that connecting the inside shutter plates 5. If there is any gap exited between two neighboring outside shutter plates 6, plaster can be used to fill the gap.
  • the tubular spacers 7 which have a length substantially the same as the thickness of the side walls of the building are disposed into the space between the inside and outside shutter plates 5 and 6 to be aligned with a selected corresponding pair of threaded holes 50 and 72. Then, the bolts 70 are brought to extend from an inside of the inside plates 5 through the tubular spacers 7 and threadedly engage with the nuts 71 from an outside of the outside plates 6. Finally, the nuts 71 are tightly screwed onto the bolts 70 to thereby fixedly connect the inside and outside plates 5 and 6 together while, due to the action of the tubular spacers 7, the predetermined distance between inside and outside shutter plates 5, 6 is maintained. Thus, the steel shuttering frame in accordance with the present invention is completed.
  • the first step is to remove the supporting stand from the building site. Then, the engagement between the screws 70 and nuts 71 is released to thereby facilitate a removal of the inside shutter plates 5 together with the side sheets 4 and the outside shutter plates 6 from the side walls of the side walls of the building. Finally, the upper shutter plates 3 are removed from the floor portion of the building.
  • the tubular spacers 7 After the removal of the shuttering frame, the tubular spacers 7 remain within the side walls. Since the tubular spacers 7 have a relatively small dimension: each having an outer diameter of 10 millimeter (mm) and an inner diameter of 6 millimeter, the tubular spacers 7 will not affect the structural integrality and strength of the side walls. Voids may occur in the surfaces of the side walls, those voids are caused by the hollow portions of the tubular spacers 7, a simple plastering can be done to fill these voids so that a very smooth surface of the side walls can be obtained.
  • Voids may occur in the surfaces of the side walls, those voids are caused by the hollow portions of the tubular spacers 7, a simple plastering can be done to fill these voids so that a very smooth surface of the side walls can be obtained.
  • a further step can be provided between the steps as indicated by the reference numbers 11 and 12 of Fig. 1.
  • the further step includes providing several plastic sleeves 34 positioned on the upper shutter plates 3 and aligned with several of the threaded holes 30, and extending steel ropes 35 into the sleeves 34 and fixedly engaging the steel ropes 35 with the threaded holes 30.
  • the fixed engagement between each of the steel ropes 35 and the threaded holes 30 can be obtained by, for example, threadedly extending a screw fixedly attached on an end of the rope 35 into the threaded hole 30.
  • the sleeves 34 have a height dimensioned substantially larger than the thickness of the concrete floor; thus, when pouring the concrete, the concrete slurry will not enter into the sleeves 34 and harden therein.
  • the steel ropes 35 are used to exert a pulling force by means of a winding machine (for example, a hoisting gear) on the upper shutter plates 3 when the construction of the building is complete and the supporting stand for the shuttering frame is moved away from the building site, thereby to prevent an unexpected falling of the upper shutter plates 3. Thereafter the pulling force of the ropes 35 acting on the upper shutter plates 3 can be decreased so that the upper shutter plates 3 can be slowly lowered until they reach the ground.
  • a winding machine for example, a hoisting gear
  • a hole 36 (Fig. 2) is defined in each of the top shutter plates 3 and located at a longitudinal central line, near an edge thereof.
  • plastic sleeves 38 are respectively provided on the upper shutter plates 3 and aligned with the holes 36.
  • Steel ropes 37 are respectively extended through the sleeves 38 and the holes 36 to be tightly anchored onto the supporting beam 2.
  • the steel ropes 37 are used to exert a pulling force on the supporting beams 2 and the H-shaped reinforcing beams 20 of the supporting stand.
  • the sheeting supports 1 are detached from the supporting stand.
  • the ropes 37 are released to lower the supporting and reinforcing beams 2 and 20 to the ground.
  • the ropes 35 are released to lower the top shutter plates 3 to the ground.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
EP97100721A 1997-01-17 1997-01-17 Procédé pour établir un support de coffrage métallique Withdrawn EP0854254A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP97100721A EP0854254A1 (fr) 1997-01-17 1997-01-17 Procédé pour établir un support de coffrage métallique

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP97100721A EP0854254A1 (fr) 1997-01-17 1997-01-17 Procédé pour établir un support de coffrage métallique

Publications (1)

Publication Number Publication Date
EP0854254A1 true EP0854254A1 (fr) 1998-07-22

Family

ID=8226379

Family Applications (1)

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EP97100721A Withdrawn EP0854254A1 (fr) 1997-01-17 1997-01-17 Procédé pour établir un support de coffrage métallique

Country Status (1)

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EP (1) EP0854254A1 (fr)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR487907A (fr) * 1917-12-08 1918-08-07 Charles H Schub Éléments interchangeables formant moules métalliques pour construction en béton
FR490551A (fr) * 1918-06-17 1919-04-29 Ind Poured Concrete House Comp Moule pour maisons en béton
US1701113A (en) * 1927-05-09 1929-02-05 Will E Keller Method of and apparatus for pouring concrete walls and floors of steel and concrete frame buildings
DE833554C (de) * 1949-02-21 1952-03-10 Dr Friedrich Lehmann Stahlbetonhaus und Schalung zur Herstellung desselben
FR1011770A (fr) * 1949-03-16 1952-06-26 élément pour la fabrication de coffrages métalliques
FR1180699A (fr) * 1957-06-17 1959-06-08 Outinord Sa Ets Coffrage démontable pour constructions en matériaux coulés
FR1337089A (fr) * 1962-10-24 1963-09-06 Travaux Pour La Construction E Procédé de coffrage dit coffrage-tunnel
FR1374215A (fr) * 1963-11-15 1964-10-02 Steinhaus Gmbh Plaque à cadres, légers, en tôle, notamment pour coffrages de paroi

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR487907A (fr) * 1917-12-08 1918-08-07 Charles H Schub Éléments interchangeables formant moules métalliques pour construction en béton
FR490551A (fr) * 1918-06-17 1919-04-29 Ind Poured Concrete House Comp Moule pour maisons en béton
US1701113A (en) * 1927-05-09 1929-02-05 Will E Keller Method of and apparatus for pouring concrete walls and floors of steel and concrete frame buildings
DE833554C (de) * 1949-02-21 1952-03-10 Dr Friedrich Lehmann Stahlbetonhaus und Schalung zur Herstellung desselben
FR1011770A (fr) * 1949-03-16 1952-06-26 élément pour la fabrication de coffrages métalliques
FR1180699A (fr) * 1957-06-17 1959-06-08 Outinord Sa Ets Coffrage démontable pour constructions en matériaux coulés
FR1337089A (fr) * 1962-10-24 1963-09-06 Travaux Pour La Construction E Procédé de coffrage dit coffrage-tunnel
FR1374215A (fr) * 1963-11-15 1964-10-02 Steinhaus Gmbh Plaque à cadres, légers, en tôle, notamment pour coffrages de paroi

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