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
  • E04G11/02—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
• • 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
  • E04G13/00—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills
• • E—FIXED CONSTRUCTIONS
  • E21—EARTH OR ROCK DRILLING; MINING
  • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
  • E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
  • E21D11/04—Lining with building materials
  • E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
  • E21D11/102—Removable shuttering; Bearing or supporting devices therefor

Definitions

• the invention relates to a formwork with at least one flat or curved formwork panel and with a haunch formwork element fastened in the use position to its lower and / or possibly upper edge, the formwork skin after stipulation of the angle between formwork panel and haunch formwork element on stiffening girders of the formwork panel and on haunch girders
• Cove formwork element can be attached and the stiffening girders and cove girders are connected to one another at the cove angle.
• Such formwork is already known from the catalog "NOE Schaltechnik” from NOE-Schaltechnik, D-73079 Süssen from 1993 and is used to create a so-called haunch at the bottom edge of a wall or wall to be shuttered usually form and widen the area from the wall surface to the floor together with the wall.
• a one-sided or possibly both-sided haunch thus widens and strengthens the lower edge region of a concrete wall and thereby also increases the stability.
• relatively sharp corners in the angular area between the wall and the floor can be avoided, which is important, for example, in settling tanks in order to largely prevent unwanted deposits.
• transition from a wall to a ceiling can also be designed in the same way under certain circumstances.
• these haunches can be provided at different angles and / or with different heights or widths, so that for these different cases, corresponding angular connections between bracing beams and haunch girders required are.
• the invention has for its object to provide a formwork of the type mentioned, which can be quickly adapted to different dimensions of haunches to be shuttered or inclined wall extensions.
• haunch girders are pivotally attached to the formwork girders via a hinge about an axis running approximately parallel to the formlining and / or the length of the haunch girders is adjustable and that the joints for the pivoting haunch girders between them and one each are arranged on a connecting member engaging a stiffening member or an insertion part for insertion into stiffening members formed from hollow profiles.
• the articulated connection of the haunch girders to the bracing girders according to the invention facilitates the adaptation to different haunch angles, since the desired angle can now be set without any problems after a corresponding fixation of the joint.
• the length adjustment of the haunch carriers makes it easier to change the Height and width of the haunch and thus also the length of the oblique haunch surface leading from the floor to the wall. It is particularly favorable if the haunch girders articulate on the bracing girders and are additionally adjustable in length, so that, for example, only the height of the haunch can be changed, but the width is left, which can be achieved by a corresponding length adjustment with simultaneous pivoting .
• the connecting parts of the haunch girders can be attached and attached very easily, in particular releasably, to such formwork panels and their bracing members be, the angular position and / or the length of the haunch girder can be set and fixed before or after attachment to the respective stiffening girder.
• a particularly simple embodiment of the invention can consist in that the haunch carriers are composed of at least two telescopically displaceable carrier parts and the carrier parts can be fixed in different displacement positions for the adjustment of the length of the haunch carriers.
• the larger cross-section of the support part can be arranged close to the joint, so that the cross-section of the smaller, inserted and insertable support part forms the free end facing away from the stiffening beams.
• a foot piece or the like for attacking an anchor for example a floor anchor
• an anchor for example a floor anchor
• the pivot axis being able to run parallel to that of the joint between haunch girder and bracing girder. If the angular position of the haunch girder in relation to the bracing girder is changed, a fixed support can still be created on the floor with the help of the foot and its pivotability, where this foot can be fixed with an anchor.
• a curved foot surface could also be provided directly, but a foot that sits firmly and flatly on the base or the floor in any angular position enables better anchoring, so that the highest concreting pressures, particularly in this area, during concreting occur, these forces can be withstood well.
• the foot pieces of a formwork element composed of formwork panel and haunch element can be connected to one another by a strap, which increases the rigidity and if necessary, the synchronous angle and / or length adjustment of the haunch beam improved.
• a further expedient embodiment of the invention which facilitates and improves the adaptation of the formwork to different dimensions, can consist in that the connecting part, in particular a plug-in part, connected to the haunch girder via a joint, relative to the associated stiffening girder of the formwork panel in the direction of orientation of this stiffening girder.
• the connecting part in particular a plug-in part
• the connecting part connected to the haunch girder via a joint
• the connecting part in particular a plug-in part
• the connecting part in particular a plug-in part
• Claim 6 specifies a particularly favorable cross-sectional shape of the stiffening girders and the plug-in parts, which makes it possible to curve the formwork panel about a generally vertical axis, that is to say an axis arranged at right angles to the course of the haunch, so that the haunch itself then also has a corresponding curved course . This is advantageous, for example, in the case of round containers or other liquid basins provided with curved walls.
• the cross-sectional shape explained in claim 6 allows a good adaptation of the U-legs of the stiffening girders to such a curvature when adjusting the corresponding curvature of the formwork panel, even if corresponding plug-in parts from these stiffening girders are included, since these plug-in parts also allow such an adjustment when setting such a curvature. At the same time, it is ensured that both the stiffening girders and the insert parts have fastening flanges for fixing to the formlining and yet fit into one another.
• Claim 7 contains features and measures about the structure of the
• Plug-in parts as a result of which they can be provided in a very simple manner with the long slot provided for the displaceability relative to the stiffening beams as a longitudinal guide.
• Claim 8 specifies an expedient cross section for the haunch girders and also an advantageous possibility of mutually fastening the carrier parts which can be displaced relative to one another, the continuous slot making stepless mutual adjustment possible, while only a stepped length adjustment is achieved in the case of individual transverse perforations on both carrier parts could, but in some cases it could be enough.
• a clamping element formed in this way can transmit high forces and is nevertheless very easily adjustable in length in order to thereby change the angular position and then also to determine the changed angular position.
• a formwork with formwork elements consisting of formwork panel and cove formwork element results which can be quickly and easily adapted to different dimensions of cove formations, so that complex and expensive one-off production, particularly of such type Haunchers and their fasteners on formwork panels can be avoided.
• formwork can be used much more economically and can under certain circumstances contribute to the fact that in cases of doubt, in which such an expedient haunch arrangement as such has possibly been dispensed with, it can now be provided without any problems.
• two adjacent foot pieces can have a releasably attachable cross member as an abutment for a formwork tie rod, instead of by means of a belt or in addition to a belt, in particular on projections which protrude or protrude from their joints.
• the foot pieces have an additional function because they can support the abutment for formwork tie rods, so that such a formwork tie anchor can be conveniently and easily attached as close to the ground as possible, ie in the area of the greatest formwork pressure.
• Fig.l is an end view of a formwork shown broken off at the top with two opposing formwork walls, between which concrete can be filled, the one formwork shown on the right in Fig.l is composed of formwork panels and cove formwork elements, so that at the bottom of a wall to be concreted results in a gradually inclined widening as haunch,
• FIG. 2 shows a view of the formwork in the direction of arrow A according to FIG. 1 with a view of a cove formwork element with four cove girders and its connection to a corresponding formwork panel, which in turn has four stiffening girders at the same distance as the cove girders,
• FIG. 3 shows an end view of a formwork element according to FIG. 1 composed of formwork panel and cove formwork element, with a dashed line showing a possible position of the cove formwork element relative to the formwork panel and with broken lines an arrangement that is changed in the angular position dashed position leads to a haunch that is reduced in height but enlarged in width,
• FIG. 4 shows a representation corresponding to FIG. 3, in which a connecting or inserting part of the haunch beam is pushed as deep as possible into the stiffening beam of the formwork panel
• 5 shows a representation corresponding to FIG. 4, in which the one located between the plug-in part and the haunch carrier
• Joint relative to the stiffening beam is adjusted downward in that the insert engages less deeply in the stiffening beam than in
• FIG. 6 shows a cross section of a stiffening girder and an insert part engaging therein along the line
• FIG. 7 shows a cross section of a stiffening girder with an engaging insert according to the section line G-F in Fig.l and
• FIG. 8 shows a cross section through a haunch girder, which consists of two partially interlocking and telescopically adjustable support parts and has a belt on the outside, according to section line G-H in Fig.l.
• Fig.l shows two opposing formwork walls 1 and 2, between which you can see the cross section of a wall to be concreted.
• This cross section provides for an enlargement at the lower edge in that the initially parallel surfaces of a on the formwork wall 2 shown on the right continuously increase their distance from a break point 3 in that the formwork skin 4 on the formwork wall 2 is at an angle to the parallel course stands so that it does not form a right angle with the bottom 5, but an acute angle 6.
• Such an oblique widening, particularly at the lower edge of a concrete wall or surface, is a haunch that requires special formwork measures.
• the formwork forming the formwork wall 2 is therefore explained in more detail below.
• This formwork has a flat or, if appropriate, also curved vertical panel 7 and a cove formwork element 9 fastened to its lower edge 8 in the position of use in the manner to be described, the formwork skin 4 after fixing the angle between the formwork panel 7 and cove formwork element 9 can be attached to stiffening girders 10 of formwork panel 7 and haunch girders 11 of haunch formwork element 9 and stiffening girders 10 and haunch girders 11 are connected to one another at the haunch angle.
• the formlining 4 can also be attached to the formwork panel 7 from the outset and then only needs to be attached to the haunch formwork element 9 after the haunch angle has been determined and connected to the formwork skin of the formwork panel 7.
• the haunch girders 11 are each pivotably attached to the bracing members 10 via a joint 12 about an axis 13 that runs approximately parallel to the formlining and in the exemplary embodiment and that the haunch girders 11 in this embodiment are also adjustable in length.
• the height of the haunch can be kept the same by pivoting, but at the same time also adjusting the length of the haunch support 11 to ensure that the bottom end maintains its level.
• this is not realized by changing the length of the haunch carrier 11, but a further adjustment possibility is used in the exemplary embodiment, by means of which the joint 12 is changed in its height position relative to the edge 8 of the formwork panel 7 in a manner to be described can.
• haunch girders and angle pieces that are adapted to them, with which they can be attached to the formwork panel 7.
• the joints 12 for the pivotable haunch girders 11 are between them and in each case a connecting part engaging a stiffening carrier 10, in the exemplary embodiment a plug-in part 14 for insertion into stiffening carriers 10 formed from hollow profiles (cf. also FIGS. 6 and 7) arranged.
• This connecting or insertion part 14, which is connected to the haunch support 11 via the joint 12, is adjustable, expediently continuously adjustable, detachably fixable and also adjustable in relation to the associated stiffening support 10 of the formwork panel 7 in the orientation or longitudinal direction of this stiffening support 10, that is to say in the exemplary embodiment in the vertical direction removable.
• the joint 12 is at a greater distance from the lower end of the stiffening support 10 than in the position according to FIG. 4.
• the haunch beam 11 consists of at least one two telescopically displaceable carrier parts 11a and 11b are assembled and these carrier parts 11a and 11b can be fixed in different displacement positions for the adjustment of the length of the haunch carrier 11. It is thus possible to compensate for the difference in height of the lower end of the haunch beam 11, which is clearly visible in FIG. 3, by pivoting it by also adjusting the length. This also ensures that the formwork panel 7 can maintain its position when the haunch measurement changes.
• a foot piece 16 with an anchor plate 17 is attached to the free end of the haunch support 11 in the exemplary embodiment at the bottom for the attack of an anchor, not shown, indicated by the line L.
• This foot piece 16 can also be pivoted about a joint 18 relative to the haunch support 11, the swivel axis 19 running parallel to the swivel axis 13 of the joint 12 between haunch support 11 and stiffening support 10 or plug-in part 14. It is thus possible, despite the pivoting of the haunch carrier 11 on the joint 12, to adjust the anchor plate 17 parallel to itself by a corresponding counter-pivoting on the joint 18, as is indicated in FIG. 3.
• a strap connecting the foot pieces 16 could act for reinforcement near the ground.
• a traverse is attached to each of two adjacent foot pieces 16 on these projections 20 21 is releasably attached, which forms an abutment for a formwork tie rod 22 near the floor 5, where the concreting pressure is greatest.
• FIGS. 6 and 7 show the cross-sectional shape of the stiffening girders 10 and the plug-in parts 14 of the cove shuttering element 9 interacting therewith, the cross-sectional shape being adapted to the fact that the shuttering panels 7 and the cove shutter duck 9 are curved about an axis which is vertical in the exemplary embodiment should be able to be either with a convex or a concave curvature in order to be able to form a vertical wall that has an arcuate course. This is necessary, for example, in clarifiers with a circular cross-section or similar containers.
• the stiffening beams 10 of the formwork panel 7 in the exemplary embodiment have an approximately U-shaped cross section, the U-legs 23 of which are connected by a U-crosspiece 24, which is located on the side facing away from the formwork skin 4. Seen in cross-section, the U-legs 23 extend obliquely apart from one another and, at their free ends or edges — again in cross-section — each have fastening flanges 25 projecting outward from the U-legs 23, that is to say directed away from one another for gripping the formlining 4, as indicated in Fig. 6 and 7.
• the plug-in part 14 of the haunch carrier 11, which is connected to it via the joint 12, also has a U-shaped cross-section with U-legs 26 arranged obliquely to one another in cross-section, the helix angle of the U-legs 26 of the in the use position at least partially within of the stiffening beam 10 lying section of the plug-in part 14 with the formlining 4 inside its Cross-section is blunt and larger than the corresponding angle of the outer portion of the stiffening beam 10 encompassing it.
• This leads to the fact that the clear width between the U-legs 26 on the formlining 4 in the internal plug-in part 14 is at least smaller by the total width of the fastening flanges 27 directed there away from one another than in the external stiffening girder 10.
• the fastening flanges 25 of the stiffening support 10 and the fastening flanges 27 of the insert part 14 lie next to one another in the same plane in the case of a flat formlining 8.
• the curvature of the fastening flanges 25 and 27, which can be seen in FIGS. 6 and 7, facilitates the aforementioned curvature of the formlining 4 compared to the flat position shown, by an axis of curvature running parallel to the longitudinal direction of the stiffening girders 10, ie perpendicular to the plane of the drawing in FIGS. 6 and 7.
• Fig. 6 and 7 and also Fig. 3 to 5 illustrate that the U-crossbars 28 of the plug-in parts 14 on the U-crossbars 24 of the stiffening brackets 10 lie against one another over the common insertion length, approximately corresponding in width, of course the inner U-crossbars 28 are possibly slightly shorter than the outer U-crossbars 24, and are releasably connectable to one another or to be connected according to FIG.
• a sliding guide or longitudinal guide in the form of an elongated slot 29 is provided on the U-cross bar 28 of the plug-in part 14 in order to enable the change in the plug-in depth of the plug-in part 14 on the stiffening girder 10 which is already mentioned.
• FIGS. 3 to 5 also clearly show this intermediate plate 34 and also the profile piece forming a head 32 due to the partially cut-open representation in these figures. It is clear that this profile piece and the intermediate plate
• the plug-in part 14 is composed of two approximately Z-shaped, in the region of the U-cross bar 28, having a slot spacing from one another, arranged symmetrically to a longitudinal center plane, which by cross connectors or cross plates 35 located in the interior of the U-cross bar and in particular one on arranged transverse end 36 near the joint are held together.
• An arm 12a of the joint 12 engages on this cross member 36, which is close to the joint 12, and is in particular welded there so that in a simple manner, the stable and rigid connection between haunch carrier 11 and plug-in 14 is made with joint 12 arranged therebetween.
• the above-described arrangement of the U-legs 23 of the stiffening girders 10 allows these legs 23 to be moved laterally without permanent deformation, that is to say in the sense of increasing or reducing their mutual inclined position, as a result of which the formwork panel 7 and the haunching formwork element 9 are parallel to the one or more Stiffening girders 10 and the haunch girders 11 can be curved or their curvature can be changed.
• This also contributes to the fact that the U-legs 26 or Z-shaped support profiles enable and allow such a deformation, so that the insert part 14 also adapts to such a curvature.
• the plug-in parts 14 of the haunch formwork elements 9 engage in the lower ends of stiffening supports 10 of formwork panels 7, which can be adjusted in their curvature, in the position of use, the property of the entire formwork is retained and is also realized on the haunch formwork elements 9, namely that in their curvature are adjustable and changeable.
• the formwork according to the invention can be used and adapted not only for flat, but also for almost arbitrarily curved concrete walls around vertical axes.
• the haunch carriers 11 have a square cross section, which in the exemplary embodiment is rectangular, the longer sides of the rectangle being arranged approximately at right angles to the formlining 4 and the shorter sides of the rectangle being arranged parallel thereto.
• the one support part 11a has a transverse perforation 37 or cross-bore and the other support part 11b, which can be displaced relative to it, in the exemplary embodiment the support part 11b located in the interior of the support part 11a has one to this transverse perforation 37 matching long slot 38 for mutual adjustment and fixing.
• FIG. 8 it can also be seen that in the interior of the carrier part 11b of the haunch carrier 11 having the smaller cross section, a nut 39 or possibly also another part having an internal thread is fastened, for example welded, to a counterplate 40, relative to which of the internals ling carrier part 11b of haunch carrier 11 is displaceable.
• a screw 41 or possibly also a threaded bolt which engages from the outside through the transverse perforations 37 of the outer haunch support part 11a, can be screwed in releasably and securely.
• a belt 43 adjustable in length is provided, by means of which the entire formwork can be stiffened and also its curvature can be adjusted and changed.
• both the stiffening girders 10 and the Haunchers 11 such straps 43, while the already mentioned cross members 21 are provided as abutments for formwork tie rods 22 on the foot pieces.
• this clamping element 46 for the angular position between the stiffening beam 10 and cove beam 11 is a clamping sleeve with opposing internal threads at its two ends and threaded bolt parts 47 engaging therein.
• the bolt pieces 47 are moved away from or towards each other because of the opposite thread moves so that they move the abutments 44 and 45 they press against one another or push apart and thus determine the desired angular position.
• FIG. 2 it is also indicated that a common end web 48 is arranged on the respective vertical edge of the formwork panel 7 and the haunch formwork element 9 that runs parallel to the stiffening girders 10 and the haunch girders 11, which ends in the area of the joint or the beginning of the haunch has the kink corresponding to the set angle, in particular prefabricated.
• This on both sides of the Forming panel 7 and cove formwork element 9 existing end pieces 48 formwork element can serve to connect such formwork elements to each other in a continuous manner, so that their respective formlining 4 is aligned.
• a formwork or a formwork element for a haunch formwork is composed of a flat or curved formwork panel 7 and a haunch formwork element 9 fastened to the generally lower edge thereof.
• the formwork skin 4 which is possibly already attached to the formwork panel 7 or can also be attached after its curvature, is supplemented by a formwork skin 4 on the haunch formwork element 9 and is attached to it after the angle between formwork panel 7 and haunch formwork element 9 has been determined.
• the stiffening girders 10 and the haunch girders 11 are connected to one another at the haunch angle.
• the haunch brackets 11 are fastened to the bracing brackets 10 via a joint 12 so as to be pivotable about an axis 13 running approximately parallel to the formlining 4 and / or the length of the haunch brackets 11 is adjustable.
• the connection between the haunch girders 11 and the bracing girders 10 can also be changed by different engagement depths or insertion lengths.

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• Engineering & Computer Science (AREA)
• Architecture (AREA)
• Structural Engineering (AREA)
• Civil Engineering (AREA)
• Mechanical Engineering (AREA)
• Mining & Mineral Resources (AREA)
• Life Sciences & Earth Sciences (AREA)
• General Life Sciences & Earth Sciences (AREA)
• Geochemistry & Mineralogy (AREA)
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• 1995
  • 1995-02-23 DE DE19506315A patent/DE19506315C1/de not_active Expired - Fee Related
• 1996
  • 1996-02-09 DK DK96904047T patent/DK0811099T3/da active
  • 1996-02-09 BR BR9607252A patent/BR9607252A/pt not_active IP Right Cessation
  • 1996-02-09 AT AT96904047T patent/ATE172268T1/de not_active IP Right Cessation
  • 1996-02-09 WO PCT/EP1996/000557 patent/WO1996026337A1/fr active IP Right Grant
  • 1996-02-09 AU AU48300/96A patent/AU694617B2/en not_active Ceased
  • 1996-02-09 DE DE59600674T patent/DE59600674D1/de not_active Expired - Lifetime
  • 1996-02-09 RU RU97115806/03A patent/RU2152494C1/ru not_active IP Right Cessation
  • 1996-02-09 CZ CZ19972459A patent/CZ292786B6/cs not_active IP Right Cessation
  • 1996-02-09 EP EP96904047A patent/EP0811099B1/fr not_active Expired - Lifetime
  • 1996-02-13 MY MYPI96000531A patent/MY116493A/en unknown
  • 1996-02-14 ZA ZA961177A patent/ZA961177B/xx unknown
• 1998
  • 1998-06-02 HK HK98104737A patent/HK1005519A1/xx not_active IP Right Cessation

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