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WO1983002974A1 - Construction de coffrage pour des ouvrages en beton ou en beton arme ayant la forme d'une surface de rotation et/ou de deuxieme degre et/ou d'une surface reglee et procede de mise en oeuvre de cette construction - Google Patents

Construction de coffrage pour des ouvrages en beton ou en beton arme ayant la forme d'une surface de rotation et/ou de deuxieme degre et/ou d'une surface reglee et procede de mise en oeuvre de cette construction Download PDF

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Publication number
WO1983002974A1
WO1983002974A1 PCT/HU1983/000010 HU8300010W WO8302974A1 WO 1983002974 A1 WO1983002974 A1 WO 1983002974A1 HU 8300010 W HU8300010 W HU 8300010W WO 8302974 A1 WO8302974 A1 WO 8302974A1
Authority
WO
WIPO (PCT)
Prior art keywords
formwork
formwork panels
panels
plates
construction
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.)
Ceased
Application number
PCT/HU1983/000010
Other languages
German (de)
English (en)
Inventor
Épito Vallalat Vizügyi
Arpád NAGY
János NAGY
Károly KEHRER
Original Assignee
Vizuegyi Epitoe Vallalat
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Vizuegyi Epitoe Vallalat filed Critical Vizuegyi Epitoe Vallalat
Publication of WO1983002974A1 publication Critical patent/WO1983002974A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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
    • E04G11/06—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for walls, e.g. curved end panels for wall shutterings; filler elements for wall shutterings; shutterings for vertical ducts
    • E04G11/062—Forms for curved walls
    • E04G11/065—Forms for curved walls with mechanical means to modify the curvature
    • 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
    • E04G11/06—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for walls, e.g. curved end panels for wall shutterings; filler elements for wall shutterings; shutterings for vertical ducts
    • E04G11/08—Forms, which are completely dismantled after setting of the concrete and re-built for next pouring
    • E04G11/087—Fill-in form panels in the plane of two adjacent forms
    • 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
    • E04G9/00—Forming or shuttering elements for general use
    • E04G9/08—Forming boards or similar elements, which are collapsible, foldable, or able to be rolled up

Definitions

  • the invention relates to a formwork construction for formwork of buildings made of concrete or reinforced concrete with a rotating surface and / or surface of second rank and / or straight surface, and a method for construction using the formwork construction.
  • the second-order surfaces are those whose each cut created by the cutting plane is a second-order curve, e.g. an El lipsoid, a hyperboloid with one or two sheaths, forms an elliptical paraboloid.
  • the straight-line surfaces are to be understood as those surfaces which are formed by simply infinite multiplicity of a straight line.
  • the straight lines forming the surface line of the surface can - depending on the relative position of the surface lines which are infinitely close to one another - consist of intersecting or alternating straight lines, the surface being able to be developed in the first case, but in the latter case a skewed surface is obtained .
  • the invention can be used to build e.g. Water tower nesting, cooling towers, digesters for cleaning dirty water, silo entries, gable roofs and the like are used.
  • the closure panel arranged on the circumference of the structure to be shuttered from the rotating surface - due to the dimensional variation of the panels and the inaccuracy of the layout - is either too small, which creates a gap between the panels, or too large, which means that it can be changed between the other panels without subsequent redesign fits.
  • These formwork systems do not allow for positive or negative dimensional tolerances, which, however, are permissible based on the standards of the construction industry.
  • the right-angled panels / e.g. the panels of the so-called "formwork with steel panel” / are only suitable for polygonal formwork of the cylinder surfaces.
  • Such a formwork system is also known, for example, for formworking conical or egg-shaped containers, the formwork being carried out by assembling the ring-shaped rows which are curved according to the surface or polygonal and made of steel panels and inclined at corresponding angles.
  • the disadvantage of the solution lies in the fact that the rings formed from panels with a certain dimension can only be used for formwork of a building of the same diameter and the same angle of inclination, and therefore the advantage that the steel formwork can be used quite a number of times cannot be exploited.
  • the invention has for its object to provide a formwork construction, as well as a method for formwork of structures with a rotating surface, surface of the second rank and straight surface, whereby the formwork can be carried out quickly, economically, and eliminates the disadvantages of the previously known solutions of a similar goal are.
  • the invention is based on the finding that the arcuate surface can be divided into rows, which consist of fields from parallel sides, in which rows the fields touch one another by one end or in the immediate vicinity of one another and in other places with increasing distance from one another are located.
  • the fields with parallel sides can be boarded by formwork of any flat and right-angled square shape, for example steel panels, and the strips of variable width lying between these fields can be boarded by a formwork of strange Design can be boarded up.
  • the panels of this latter formwork can form the main girders of the entire formwork, which transmit and bear the load of the "panel system part", moreover are capable due to their design, the positive and negative dimensional tolerance resulting from the inaccuracies resulting from the inaccuracies and the concrete closure between the Stripes / lines / to grant, because the cladding panels of the main girders reach under the panels of the formwork part of "steel panels".
  • the formwork construction has formwork panels of variable width and formwork panels of constant width, which in the rows lying next to each other are alternately arranged, and the formwork panels of variable width - at least partially - are the main girders of the formwork construction, the adjacent formwork panels lying next to each other by themselves for absorbing the stress resulting from the concrete pressure or for transmission the resulting stress from the concrete pressure from the formwork panels functioning as the main girder to the other formwork panels suitable connections are connected.
  • the embodiment is expedient, the formwork panels of variable width having a triangular or elongated trapezoid shape.
  • the embodiment is advantageous, the width of the formwork panels functioning as the main girder being selected so that the longitudinal catenary of the Installation condition Formwork panels forming the main girder are located under the adjacent formwork panels, i.e. with an overlap.
  • the embodiment is possible, in which the plate shell of the formwork panels of variable width forming the main girders are reinforced by longitudinal ribs lying on longitudinal edges and advantageously formed from a closed profile, as well as transverse ribs.
  • the embodiment is expedient, the longitudinal ribs of the formwork panels which form the main carrier in the installed state being arranged at a distance from the lateral surfaces of their adjacent formwork panels.
  • the embodiment is advantageous, the height of the longitudinal and / or transverse ribs of the formwork panels functioning as the main girder being greater than the height of the other formwork panels.
  • the embodiment is possible, wherein the formwork panels functioning as the main girder, or at least part of which has a variable width.
  • the plate shell of the formwork plates functioning as the main support being formed by slidable, overlapping plates j the plates are reinforced by longitudinal ribs and transverse ribs; the transverse ribs have a telescopic design such that the inner cross section of the hollow rib part fastened to the one plate is larger than the outer cross section of the rib part fastened to the other plate, the rib parts being arched and displaceable into one another and in the overlapping ones Plates are formed in the same line arcuate slots, which means that the connecting elements, for example shaft screws and nuts, which lie one on top of the other plates are releasably connected to each other.
  • the essence of the method affected by the invention is that functional formwork panels of variable width are expediently arranged over the full length of the surface of the structure to be formworked, and these, formwork panels arranged on both sides of the wall to be produced, are connected in pairs, after which the concreting of bottom up, the columns of the formwork panels functioning as the main girder are carried out by the remaining formwork panels only in height according to the progress of the concreting.
  • the embodiment is expedient, with the arrangement and fastening of the formwork panels functioning as the main girder being arranged on one side with all the other formwork panels, and the remaining formwork panels between the formwork panels functioning as the main girder on the other side, the concreting in annular zones, or progressing in a spiral and upwards be arranged and fastened accordingly.
  • the embodiment is advantageous, with the formwork panels in between being attached to the formwork panels forming the main girders, connections suitable for receiving and transmitting the stresses resulting from the concreting.
  • FIG. 1 shows the division according to the invention of the surface to be shuttered of a truncated cone-shaped water tower nest made of reinforced concrete in perspective; 2 shows the division according to the invention of the surface to be shelled of a hyperboloid-shaped water tower likewise in perspective;
  • FIG. 3 illustrates a part of the formwork construction necessary for the structure shown in FIG. 1;
  • FIG. 4 shows the section AA from FIG. 3;
  • FIG. 5 shows part B from FIG. 4 on an enlarged scale;
  • 6 shows the front view of a variable-width main girder of the formwork construction according to the invention;
  • FIG. 7 shows the view according to arrow C in FIG. 6;
  • Fig. 8 shows the view according to the arrow D in Fig. 6;
  • FIG. 9 shows a variably wide embodiment of the main beam of the inventive Schalungskon construction in front view
  • FIG. 10 shows the view according to the arrow in FIG. 9;
  • FIG. 11 shows the view according to the arrow in FIG. 9.
  • Fig. 1 The inner and outer surface of the frustoconical water tower nest shown in Fig. 1 are geometrically divided into rows consisting of fields 1, these fields forming 1 right-angled squares - in this case rectangles - and their longitudinal edges la, lb are therefore parallel to one another. These neighboring fields
  • Fields 1 collide through their lower ends.
  • the fields 1 have the same width.
  • Fields 1 can be formed using commercial flat steel formwork panels.
  • variable width b are the main girders for the entire formwork construction serving formwork panels.
  • the fields 2 end geometrically at the bottom, so they are seen as triangular in the projection.
  • the surface division of the hyperboloidal cooling tower in FIG. 2 is similar to that in FIG. 1.
  • the fields of width a in the rows consisting of fields 1 are rectangular; their edges 1a, 1b are parallel, but touch here. fields 1 in the middle and both below and above, fields 2 of variable width b arise in surfaces not covered by fields 1.
  • the fields 2 are formed by individual formwork panels that serve as the main girder for the entire formwork construction.
  • FIG. 3 shows a part of the formwork construction used for formwork of the nest shown in FIG. 1, which is laid out in a plane, while FIGS. 4 and 5 show the characteristic parts of the formwork construction in section.
  • the formwork panels used for formwork of the rectangular fields 1 illustrated in FIGS. 1 and 2 are designated by reference number 4 as a whole, and the formwork panels which function as main girders for formwork fields 1 and in the formwork construction are designated by reference number 3.
  • the width b of the formwork sheet 3 is variable in the case of the exemplary embodiment shown in FIGS. 3-5, but cannot be changed, so it is the same as the formwork sheet 3 shown in FIGS. 6-8.
  • the maximum width b 1 of the formwork panel 3 decreases from one end to the other to the minimum width b 2 , ie the formwork panel has an elongated trapezoidal shape.
  • the panel formwork 7 of the formwork panel 3, the purpose consists moderately of steel plates, are reinforced by longitudinal ribs 8a and transverse ribs 8b arranged on their longitudinal edges, which together form a lattice structure.
  • the load-bearing capacity of the lattice structure is determined in view of the expected concrete pressure.
  • the width of the panel in the panel formwork 7 is selected so that it extends on both sides by a few cm beyond the longitudinal ribs 8a, ie the formwork panels 3 have longitudinal edges 7a made of panel on both sides.
  • the longitudinal edges of the formwork panel 3 extend under the formwork panel 4, i.e. gaps 13 of width v remain between the longitudinal ribs 8a and the sides of the formwork panels 4 / FIG. 5 /, which enable the possible correction of the inaccuracies resulting from the stakeout.
  • the overlapping arrangement of the longitudinal edges 7a completely prevents the concrete flow from the formwork construction.
  • the formwork panels 4 also have panel shell 15 which are reinforced by ribs 16, but it can be seen in Figures 4 and 5 that the longitudinal ribs 8a and the transverse ribs 8b make the formwork panel 3 functioning as the main girder a greater height / m 1 / than the height / m 2 / of the ribs 16 of the formwork panels 4, therefore their inertia is also much greater.
  • the dimensions of the formwork panels 3 are namely significantly smaller than the dimensions of the formwork panels 4, so their use as the main girder is favorable in all respects.
  • the formwork panels 3 lying opposite one another are expediently matched by the longitudinal ribs 8a, for example by means of a known one, which corresponds to the thickness of the wall to be produced the bandage attached to each other.
  • Such solutions are generally known in formwork systems with large or steel formwork panels.
  • the formwork panels 3 / main girder / can be made from one or more parts depending on the dimensions of the structure to be shuttered.
  • the formwork of the water tower nest shown in FIG. 1 is carried out as follows.
  • the formwork panels 3, which form the main girders are mounted on both sides of the building in pairs, opposite one another, at the fixed and defined locations, in their full length, i.e. arranged along the full length of the mantle of the nest.
  • Formwork panel 3 is fastened to one another by the thickness of the wall, for example in known formwork systems with large or steel formwork panels. Then the arrangement of the commercial steel formwork panels 4 takes place on an outer full surface, for example, in the lower rows in such a way that their longitudinal edges on the longitudinal edges 7a of the panel shell 7 cause the formwork panel 3 lying next to them to have a width v / FIG. 5 /.
  • the formwork panels 3, 4 are connected in a manner known per se, expediently by means of a quick coupling, for example by wedges, eccentric hold-down devices so that the formwork panels 4 can transmit the pressure falling on them from the concrete to the formwork panel 3 functioning as the main girder.
  • the formwork panels 4 for the not yet switched for example inner surface
  • the formwork panels 4 for the not yet switched for example inner surface
  • the bottom one is concreted using the above Ring out.
  • the fact that the height of the ring corresponds to the height of formwork panels 4 enables a vibrator to be lowered to the necessary depth, ie it guarantees perfect concrete quality.
  • the missing formwork panels 4 for the next ring are attached, to which formwork panel 3 functioning as the main girder is attached, after which the second ring calculated from below is also concreted.
  • the formwork plaques 4 are arranged on a surface approximately in parallel with the concreting of the building together with the execution of the necessary connections.
  • FIGS. 9 to 11 show the exemplary embodiment of a formwork panel of variable width, functioning as the main girder, previously indicated by reference number 3, the width of which is variable. This formwork panel was indicated by reference number 30.
  • the panel formwork 7 of the formwork panel 30 consists of two parts, the panels 9, 10, which overlap one another and as a result the maximum width of the formwork panel 30 can be changed between the highest and smallest values c 1 and c 2 ; accordingly, of course, the intermediate values of the width change in the direction of the opposite, narrowing end of the formwork panel 30, and of course the angle of inclination of the longitudinal edge also changes.
  • the elongated reinforcement of the plate shell consisting of two parts is carried out by means of longitudinal ribs 8a, a longitudinal rib 8a to the plate 9 and other longitudinal rib 8a are attached to the plate 10.
  • the transverse ribs 8b consist of telescopic, arcuate rib parts 11a, 11b, the cross section of the inner space of the rib part 11a being larger than the outer circumferential profile of the rib part 11b, so that the first cannot enclose the second.
  • Arc-shaped slots 12 are formed in the overlapping plates 9, 10, which also overlap one another / FIGS. 1 and 9 /.
  • Slots 12 can be passed through socket head screws 17 and e.g. by tightening the nuts, the plates 9, 10 can be pressed against each other and this allows the specified width to be set before the start of concreting.
  • variable widths according to the invention can be used as the main carrier.
  • working formwork panel for formwork of buildings of different / angle of inclination and curved surface can also be used several times.

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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)

Abstract

Le problème de l'invention est résolu en ce qu'elle comprend des plaques de coffrage ainsi que des éléments de liaison servant à relier les plaques de coffrage voisines et opposées. L'essentiel de cette construction de coffrage consiste en la présence de plaques de coffrage ayant une largeur variable et de plaques ayant une largeur constante. Elles se suivent en rangées disposées en alternance. Les plaques de coffrage de largeur variable tiennent lieu - en partie au moins - de longerons de la construction de coffrage. Les plaques de coffrage voisines sont reliées ensemble par des liaisons aptes à recevoir la charge résultant de la pression du béton, respectivement aptes à transmettre ladite charge aux autres plaques de coffrage, lorsqu'elle provient des plaques de coffrage ayant la fonction de longerons. L'essentiel du procédé de mise en oeuvre consiste en ce que l'on dispose comme plaque de coffrage ayant la fonction de longeron, une plaque de largeur variable, et cela en longueur de surface de l'ouvrage à coffrer, de préférence sur toute cette longueur, tout en reliant par paires ces plaques de coffrage situées de part et d'autre de la paroi à établir. Ensuite on effectue le bétonnage de bas en haut en coffrant les interstices entre les plaques ayant la fonction de longeron à l'aide des plaques de coffrage restantes, mais cela seulement à un niveau correspondant à la progression du bétonnage.
PCT/HU1983/000010 1982-02-23 1983-02-22 Construction de coffrage pour des ouvrages en beton ou en beton arme ayant la forme d'une surface de rotation et/ou de deuxieme degre et/ou d'une surface reglee et procede de mise en oeuvre de cette construction Ceased WO1983002974A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
HU538/82820223 1982-02-23
HU53882A HU183830B (en) 1982-02-23 1982-02-23 Sheeting device for sheeting monolithic concrete or reinforced concrete engineering structures of surface of revolution and/or surface of second-order and/or surface of straight line as well as construction method by using of sheeting device

Publications (1)

Publication Number Publication Date
WO1983002974A1 true WO1983002974A1 (fr) 1983-09-01

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ID=10950060

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/HU1983/000010 Ceased WO1983002974A1 (fr) 1982-02-23 1983-02-22 Construction de coffrage pour des ouvrages en beton ou en beton arme ayant la forme d'une surface de rotation et/ou de deuxieme degre et/ou d'une surface reglee et procede de mise en oeuvre de cette construction

Country Status (3)

Country Link
DE (2) DE3328003C1 (fr)
HU (1) HU183830B (fr)
WO (1) WO1983002974A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4673159A (en) * 1984-10-18 1987-06-16 Hancock Concrete Products Co., Inc. Molding forms for making precast portal assembly sections for culverts
CN104956016A (zh) * 2013-02-05 2015-09-30 英格思德项目研究发展有限公司 用于建造混凝土塔的系统和方法以及获得的混凝土塔

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT223365B (de) * 1958-09-17 1962-09-10 Acrow Wolff Ges Mit Beschraenk Schalungselement
AT233810B (de) * 1962-07-04 1964-05-25 Acrow Wolff Gmbh Schalungseinheit mit elastischen Schaltafeln

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
T. Dinesku u.a: "Skoljsjatschaja opalubka", 1975, Stroisdat (Moscow), pages 413,425 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4673159A (en) * 1984-10-18 1987-06-16 Hancock Concrete Products Co., Inc. Molding forms for making precast portal assembly sections for culverts
CN104956016A (zh) * 2013-02-05 2015-09-30 英格思德项目研究发展有限公司 用于建造混凝土塔的系统和方法以及获得的混凝土塔
US9487966B2 (en) * 2013-02-05 2016-11-08 Ingecid, Investigación Y Desarrollo De Proyectos, S.L. System and method for the construction of concrete towers and resulting concrete tower
AU2014213850B2 (en) * 2013-02-05 2017-08-10 INGECID, Investigacion y Desarrollo de Proyectos, S.L. System and method for the construction of concrete towers and resulting concrete tower

Also Published As

Publication number Publication date
DE3328003D2 (de) 1984-05-30
HU183830B (en) 1984-06-28
DE3328003C1 (de) 1988-04-14

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