EP3617415A1 - Élément d'armature de poinçonnement et construction dotée d'une plaque dotée d'un élément d'armature de poinçonnement - Google Patents

Élément d'armature de poinçonnement et construction dotée d'une plaque dotée d'un élément d'armature de poinçonnement Download PDF

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Publication number
EP3617415A1
EP3617415A1 EP19202727.4A EP19202727A EP3617415A1 EP 3617415 A1 EP3617415 A1 EP 3617415A1 EP 19202727 A EP19202727 A EP 19202727A EP 3617415 A1 EP3617415 A1 EP 3617415A1
Authority
EP
European Patent Office
Prior art keywords
section
punching shear
plate
support
shear reinforcement
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.)
Granted
Application number
EP19202727.4A
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German (de)
English (en)
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EP3617415B1 (fr
Inventor
Marcus Ricker
Carsten Siburg
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.)
Leviat GmbH
Original Assignee
Halfen GmbH and Co KG
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 Halfen GmbH and Co KG filed Critical Halfen GmbH and Co KG
Priority to EP19202727.4A priority Critical patent/EP3617415B1/fr
Priority to HUE19202727A priority patent/HUE057759T2/hu
Priority to PL19202727T priority patent/PL3617415T3/pl
Publication of EP3617415A1 publication Critical patent/EP3617415A1/fr
Application granted granted Critical
Publication of EP3617415B1 publication Critical patent/EP3617415B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
    • E04B5/43—Floor structures of extraordinary design; Features relating to the elastic stability; Floor structures specially designed for resting on columns only, e.g. mushroom floors
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
    • E04C5/06—Reinforcing elements of metal, e.g. with non-structural coatings of high bending resistance, i.e. of essentially three-dimensional extent, e.g. lattice girders
    • E04C5/0645—Shear reinforcements, e.g. shearheads for floor slabs

Definitions

  • the invention relates to a punching shear reinforcement element of the type specified in the preamble of claim 1 and a structure with a plate of the type specified in the preamble of claim 9.
  • a punching shear reinforcement for a plate on which a support is arranged, the punching shear reinforcement comprising a plurality of anchors.
  • the anchors near the support should be curved and the anchors away from the support should be straight.
  • An S-shaped bend of the armature can also be provided.
  • the lattice girder of which comprises a diagonal brace whose diagonal braces are inclined in the same direction.
  • the invention has for its object to provide a punching shear reinforcement element of the generic type that can be installed easily and adapted to the intended load and has a high punching shear strength, in particular for slabs with low slenderness achieved.
  • Another object of the invention is to provide a structure with a plate and a support connected to the plate.
  • the present invention provides a punching shear reinforcement element which has at least three sections which are connected to one another via bending sections.
  • the bending angles between the bending sections are dimensioned such that the punching shear reinforcement element can also be arranged in a slab with a shear slenderness of at most 4 such that the expected shear crack cuts the punching shear reinforcement element three times, namely in the first section, the second section and the third section.
  • Good anchoring of the punching shear reinforcement element in the slab is achieved by the two anchoring sections at the ends of the reinforcement bar and by the two bending sections.
  • the bending sections also form anchoring areas, so that the punching shear reinforcement element has at least four anchoring areas.
  • the shape of the punching shear reinforcement element and the good anchoring of the punching shear reinforcement element in a plate can achieve a significantly increased punching shear strength.
  • the punching shear reinforcement element can be easily installed since it does not have to be closed compared to known reinforcement brackets. Because the punching shear reinforcement element is designed as a single element and not as a lattice girder distributed over the plate surface, the punching shear reinforcement element can be easily adapted to the application and positioned in the slab during manufacture.
  • a favorable form of the punching shear reinforcement element results in particular if the first section is shorter than the second section and the second section is shorter than the third section.
  • the third section is advantageously provided for arrangement away from the support and the first section for arrangement close to the support.
  • the different length of the sections is advantageously provided such that both the steepest shear crack to be assumed and the flattest shear crack to be assumed for this plate intersect each of the three sections once.
  • a first anchoring section is advantageously arranged on the first section and a second anchoring section on the third section.
  • the punching shear reinforcement element thus has exactly three sections which are connected to one another by the two bending sections. No further sections are provided between the first section and the first anchoring section or between the third section and the second anchoring section.
  • Each section is advantageously anchored in the concrete at its two ends via an anchoring section or a bent section.
  • An anchor head is particularly advantageously provided as an anchoring section at the end of the reinforcing bar.
  • the rebar can be easily manufactured as a curved double-headed anchor.
  • the anchoring section is designed as a hook or angled hook or has an end plate welded to the reinforcement bar or a cross bar welded to the reinforcement bar.
  • Other designs of the anchoring section can also be advantageous.
  • the shape of the punching shear reinforcement element differs from a straight, undeformed reinforcement bar, so that there is good anchoring in the concrete.
  • An additional anchoring element is advantageously arranged adjacent to the first bending section. It has been shown that good anchoring is required in particular between the first and the second section, since this area is heavily loaded.
  • the additional anchoring element adjacent to the first bending section additionally increases the punching strength of a plate provided with the punching reinforcement element.
  • the anchoring element can advantageously be a flat plate, which is welded in particular to the reinforcing bar. However, the anchoring element can also be formed by one or more bars welded to the reinforcing bar and / or by a flat-shaped section of the reinforcing bar. A different design of the anchoring element can also be advantageous.
  • the punching shear reinforcement element advantageously has at least one base for setting up the punching shear reinforcement element.
  • the stand can be provided for installation on a lower formwork of the plate or for installation or placement on a reinforcement of the plate and can have any shape suitable for this.
  • the base can for example be rod, ring or bow-shaped.
  • the fact that the punching shear reinforcement element has at least one base means that the punching shear reinforcement element can be easily positioned.
  • the pedestal is advantageously designed such that the desired orientation of the individual sections of the punching shear reinforcement element results when the punching shear reinforcement element is set up with the at least one pedestal. When manufacturing the slab, the punching shear reinforcement element only has to be set up in the correct position.
  • the stand is designed to be placed on a lower formwork of a panel, the stand is advantageously protected against corrosion at least in the area adjacent to the lower formwork, advantageously over at least 3 cm to 5 cm educated.
  • the corrosion-protected design can take place, for example, by painting, by a plastic coating or by the base being at least partially made of stainless steel or plastic.
  • the reinforcement bar is advantageously made of reinforcing steel and has a diameter of 8 mm to 32 mm.
  • the reinforcing steel is particularly preferably formed from ribbed reinforcing steel.
  • the punching shear reinforcement element advantageously comprises at least two reinforcement bars that are firmly connected to one another.
  • the two reinforcing bars are advantageously designed with mirror symmetry, the first section, the second section and the third section of the two reinforcing bars lying congruently one above the other in the first side view, in which the first and second bending angles are measured. Due to the fact that the punching shear reinforcement element has two reinforcement bars that are firmly connected to each other, the assembly effort when positioning the reinforcement bars is reduced, since two reinforcement bars are positioned at the same time. At the same time, the two reinforcement bars can be set up in a stable manner, in particular using appropriate feet.
  • the two reinforcing bars are advantageously connected to one another via at least one base and / or at least one anchoring element. This results in a simple structure.
  • the construction of the punching shear reinforcement element is simplified by using elements that are present anyway to connect the two reinforcement bars. The connection can be made in a simple manner via welded connections.
  • the second section and the third section of a reinforcing bar advantageously extend in a further, second side view, which is perpendicular to the first side view, inclined to one another by an angle which is from 2 ° to 10 °.
  • the angle of inclination between the second and the third section is advantageously approximately 5 °.
  • the third sections preferably run parallel to one another. Due to the inclination of the second sections to each other can be easily achieved be that the distance between the third sections is greater or smaller than the distance between the first sections.
  • the distance between the third sections is preferably greater than the distance between the second sections.
  • the punching shear reinforcement elements can be pushed into one another, which results in a very good increase in the punching shear strength due to the small distances between the sections.
  • the distance between the third sections of the two reinforcement bars is preferably greater than the width of the punching shear reinforcement element at the second sections at this point. If the punching shear reinforcement element has feet, the distances are advantageously measured in a plane parallel to a horizontal, flat installation surface, for example to a lower formwork of a plate.
  • the slab has at least one punching shear reinforcement element.
  • the punching shear strength of the slab can be significantly increased using the at least one punching shear reinforcement element.
  • the punching shear reinforcement element is advantageously arranged such that the third section of the punching shear reinforcement element is inclined at an angle of 30 ° to 50 ° to a side of the plate remote from the support in the first side view. An angle of inclination of approximately 40 ° is particularly advantageous. As a result, the third section intersects an expected shear crack at a very steep angle, in particular an angle of 70 ° to 110 °, advantageously approximately at right angles.
  • the second section is advantageously inclined at an angle of 60 ° to 85 ° to the side of the plate remote from the support in the first side view.
  • An angle of inclination of approximately 80 ° is regarded as particularly preferred. This results in a small distance between the first and the third section.
  • the second section also cuts an expected shear crack.
  • the first section and the third section are preferably arranged approximately parallel to one another in the first side view.
  • the first section, the second section and the third section are advantageously arranged in such a way that the region of the plate facing the support side of the plate Section is inclined away from the support. This creates a steep angle between the individual sections and an expected thrust crack.
  • the first bending section lies in the plane of a bending pressure reinforcement of the plate close to the support.
  • the second bending section preferably lies in the plane of a bending tensile reinforcement of the plate remote from the support.
  • the first bending section is preferably arranged in the plane of the bending pressure reinforcement closest to the column and the second bending section in the plane of the bending tension reinforcement furthest from the column.
  • the punching shear reinforcement element is advantageously arranged close to the support in the radial direction of the support.
  • the greatest distance of the first bending section, parallel to the side of the plate remote from the support, to a line which forms the extension of the support section is preferably 20% to 75% of the static useful height of the plate.
  • the static effective height of the slab is the distance from the center of gravity of the bending reinforcement furthest from the column to the pressed edge, i.e. to the side of the slab near the column.
  • the greatest distance is measured up to the area of the bending section which has the greatest distance for the extension of the support section.
  • the distance is preferably about 30% of the static useful height of the plate.
  • the plate is advantageously a compact plate, the slenderness of which is at most 4, in particular at most 3. In the case of compact panels in particular, it has been shown that the thrust crack that arises is comparatively steep, so that the punching shear reinforcement element according to the present invention enables a very high punching shear strength to be achieved.
  • a first anchoring section of the punching shear reinforcement element is advantageously arranged on the first section, and the first anchoring section is at a distance of less than twice the diameter of the reinforcing bar from the line which forms the extension of the support section.
  • the first anchoring section is preferably cut from the line which forms the extension of the support section.
  • the first anchoring section is therefore in line with the column gating, that is to say when it is arranged in a foundation directly below the column gating and in the case of an arrangement in a ceiling directly above the column section.
  • the anchoring element is arranged parallel to the side of the slab remote from the support. This ensures a good distribution of the introduced load.
  • the anchoring element forms a load distribution element which is intended to emit the forces introduced into the punching shear reinforcement element evenly into the concrete.
  • Fig. 1 shows a detail of a building, which comprises a plate 1, for example a foundation, and a support 2 arranged on the plate 1.
  • the plate 1 has a longitudinally distant flexural reinforcement 18 and a transverse distal flexural reinforcement 19.
  • the flexural reinforcements 18 and 19 form the lower reinforcement of the plate 1.
  • the flexural reinforcements 18 and 19 are at a short distance from that of the column facing away from the support side 25 of the plate 1 arranged in the embodiment the bottom of the plate is 1.
  • the plate 1 also has a bending pressure reinforcement which is formed by a bending pressure reinforcement 20 oriented in the longitudinal direction near the support and a bending pressure reinforcement 21 oriented transversely thereto.
  • the bending pressure reinforcements 20 and 21 are arranged at a short distance from a side 24 near the support, which forms the upper side of the plate 1 in the exemplary embodiment.
  • the bending tensile reinforcements 18 and 19 and the bending pressure reinforcements 20 and 21 are each formed by a plurality of straight reinforcement bars running parallel to one another.
  • the plate 1 also has a connection reinforcement 39 for the support 2, which is formed by L-shaped reinforcement bars. One leg of the L of the connecting reinforcement 39 projects from the plate 1 into the support 2, and a second leg is arranged approximately horizontally adjacent to the bending tensile reinforcement 19 remote from the support.
  • the plate 1 has a static usable height d.
  • the static usable height is the distance from the center of gravity of the most distant bending tensile reinforcement 18 to the side near the column 24.
  • a static usable height d of 40 cm to 50 cm is provided.
  • the extension of the column cut is in Fig. 1 marked by a line 42.
  • the edge of the plate 1 has a distance a measured parallel to the side 25 of the plate 1 remote from the support.
  • the distance a of line 42 that is, the extension of the column section, to the edge of plate 1 is advantageously comparatively small in relation to the static usable height.
  • the thrust slenderness denotes the ratio of the distance a to the static usable height d and is advantageously at most 4.0.
  • the plate 1 is therefore a compact plate, preferably a compact foundation, and not a flat ceiling. It has been shown that with such slabs 1 with low shear slenderness, the shear cracks run comparatively steeply in the event of failure.
  • the plate 1 has punching reinforcement elements 3.
  • the punching reinforcement elements 3 have a reinforcing bar 4, which is designed in the embodiment as a curved double-headed anchor.
  • the reinforcement bar 4 has a first anchoring section 13 at a first end 11, which is designed as an anchor head.
  • a first section 6 of the reinforcing bar 4 adjoins the first end 11.
  • the reinforcing bar 4 is curved in a first bending section 9.
  • the first bending section 9 is arranged between the first section 6 and a second section 7.
  • An anchoring element 17 is arranged adjacent to the first bending section 9, which is fixed to the first section 6 and to the second section 7 and the design of which is explained in more detail below.
  • a second bending section 10 is provided, on which the reinforcing bar 4 is bent again, in the opposite direction to the bending on the first bending section 9.
  • the first bending section 6 and the third connecting to the second bending section 10 Section 8 run parallel to one another in the exemplary embodiment.
  • the third section 8 is followed by a second end 12 of the reinforcing bar 4, on which a second anchoring section 14 is arranged.
  • the second anchoring section 14 is also designed as an anchor head.
  • a different design of the anchoring sections 13 and 14 can, however, also be advantageous.
  • the first anchoring section 13 to the support-distant side 25 of the plate 1 has a slightly greater distance than the second anchoring section 14.
  • the distance of the anchoring sections 13 and 14 to the support-side 24 of the plate 1 is less than the distance to the support-distant side 25.
  • the bending section 9 connects directly to the sections 6 and 7, and the bending section 10 connects directly to the sections 7 and 8.
  • the reinforcement bar may also be advantageous for the reinforcement bar to have 4 further sections.
  • the punching shear reinforcement elements 3 closest to the support 2 are arranged in such a way that the first anchoring section 13 is cut by the line 42 which forms the extension of the support section.
  • the second end 12 of the reinforcement bar of the punching shear reinforcement element 3 protrudes away from the support 2.
  • the first bending section 9 has a distance b to the line 42 measured parallel to the side 25 remote from the support, which is advantageously 20% to 75% of the static usable height d.
  • the distance b is particularly preferably 25% to 40%, in particular approximately 30%, of the static usable height d.
  • the distance b is measured parallel to the side 25 remote from the support and denotes the distance of the area of the bending section 9 furthest from the line 42 from the line 42.
  • Fig. 1 shows, further punching shear reinforcement elements 3 are provided at a greater distance from line 42.
  • the punching shear reinforcement elements 3 arranged further away are arranged with their first bending section 9 at a distance c from line 42.
  • the distance c is likewise measured parallel to the side 25 remote from the support and can advantageously be approximately 40% to approximately 100%, preferably approximately 80% of the static useful height d.
  • each punching shear reinforcement element has 3 feet 15 and 16, with which the punching shear reinforcement elements 3 protrude up to the side 25 remote from the support.
  • the feet 15 and 16 are used in the manufacture of the plate 1 for setting up the punching shear reinforcement elements 3.
  • the punching shear reinforcement elements 3 are advantageously placed with the feet 15 and 16 on a lower formwork.
  • the regions of the feet 15 and 16 which are arranged adjacent to the side 25 remote from the support are advantageously designed to be corrosion-protected, for example by means of a corrosion-protective paint, a plastic coating or by a design in stainless steel or plastic.
  • one or more feet are designed to be arranged on a reinforcement. For this purpose, for example, a design of the feet as a lying ring to be placed on the reinforcement can be expedient.
  • Fig. 2 shows the arrangement of the punching shear reinforcement elements 3 in the plate 1.
  • the punching shear reinforcement elements 3 are arranged on a support 2, which has a width e and a depth f.
  • the width e and the depth f are the same size, and the support 2 has a square cross section. Another cross section of the support 2 can, however, also be advantageous.
  • a punching shear reinforcement element 3 is arranged under each corner of the support 2 and centrally under each side of the support 2.
  • the first anchoring sections 13 are arranged such that the line 42 ( Fig. 1 ) cuts the anchoring sections 13.
  • the first bending sections 9 are arranged on a line 22 which is at a distance b from the extension of the support section (line 42 in Fig. 1 ) runs. How Fig. 2 also shows, a further row of punching shear reinforcement elements 3 is arranged at a greater distance from the support 2.
  • the second row of punching shear reinforcement elements 3 is arranged with its first bending section 9 on a second line 23, which extends at a distance c around the extension of the column section.
  • the punching shear reinforcement elements 3 are each arranged in such a way that the third sections 8 run perpendicular to the sides of the cross section of the support 2.
  • the punching shear reinforcement elements 3 have a width h at the third sections 8.
  • the distance g between adjacent punching shear reinforcement elements 3 is advantageously less than twice the width h. In the exemplary embodiment, the width h and the distance g are approximately the same size. The width h is advantageously 20% to 40% of the static useful height d.
  • each punching shear reinforcement element 3 has a first reinforcement bar 4 and a second reinforcement bar 5.
  • the reinforcement bars 4 and 5 are mirror-symmetrical to one another.
  • Fig. 3 shows the position of a reinforcement bar 4 of the punching shear reinforcement element 3 in the plate 1 in detail.
  • a first thrust cone line 26 and a second thrust cone line 27 are shown schematically.
  • the first thrust cone line 26 indicates the flattest expected course of a shear crack that occurs when punching through the plate 1, and the second shear cone line 27 indicates the steepest expected course for a shear crack.
  • Both thrust cone lines 26 and 27 intersect the base point of the support 2.
  • the first thrust cone line 26 is inclined to the side 25 of the plate 1 remote from the support by an angle ⁇ 1 , which is 35 °.
  • the second thrust cone line 27 is inclined to the side 25 remote from the support by an angle ⁇ 2 , which is 65 °.
  • the third section 8 of the reinforcing bar 4 is inclined by an angle ⁇ to the side 25 remote from the support, which is 30 ° to 50 °.
  • the angle ⁇ is particularly preferably approximately 40 °.
  • the first section 6 is inclined to the third section 8 by an angle of 0 ° to 20 °.
  • the first section 6 and the third section 8 run parallel in the side view shown.
  • the second section 7 forms an angle ⁇ with the side 25 remote from the support, which is advantageously 5 ° to 30 °.
  • the angle ⁇ is approximately 10 °.
  • the first end 11 of the reinforcing bar 4 is at a distance m from the second shear cone line 27, which is advantageously smaller than the distance b.
  • the distance m is less than half the distance b.
  • the second end 12 is at a distance n from the first thrust cone line 26, which is also smaller than the distance b.
  • the distance n is advantageously twice the distance m. Due to the arrangement shown, the sections 6, 7 and 8 are cut from an expected shear crack of the plate 1 at a steep angle. Because the shear crack is cut three times by the punching shear reinforcement element 3, a large increase in the punching shear strength can be achieved.
  • Fig. 4 shows the design of the punching shear reinforcement element 3 in detail.
  • the first section 6 includes, with the second section 7, a first bending angle ⁇ 1 , which in the side view shown is 30 ° to 50 °, in particular approximately 40 °.
  • the second section 7 includes the third section 8 in this side view, a second bending angle ⁇ 2 , which is also 30 ° to 50 °.
  • the second is also preferred Bending angle ⁇ 2 about 40 °.
  • the bending angles ⁇ 1 and ⁇ 2 are designed such that the first section 6 with the third section 8 encloses an angle of 0 ° to 20 °.
  • the bending angles ⁇ 1 and ⁇ 2 are preferably approximately the same size, so that in the Fig.
  • first section 6 and the second section 8 run parallel to one another.
  • the anchoring element 17 is arranged adjacent to the first bending section 9.
  • the anchoring element 17 is designed as a plate and welded to the first section 6 and to the second section 7.
  • the anchoring element 17 is oriented such that the anchoring element 17 runs parallel to the side 25 of the plate 1 remote from the support when the punching shear reinforcement element 3 is set up on the feet 15 and 16.
  • That of the distant side 25 ( Fig. 1 ) facing bottom of the anchoring element 17 includes with the first section 6 an angle ⁇ 1 , which is 30 ° to 50 °, in particular about 40 °.
  • the second section 7 forms an angle ⁇ 2 with the underside of the anchoring element 17, which is advantageously 95 ° to 120 °, in particular approximately 100 °.
  • the angles ⁇ 1 and ⁇ 2 are each measured on the side of the sections 6 and 7 facing away from the angle ⁇ 1 .
  • the feet 15 and 16 are welded to the punching shear reinforcement element 3.
  • the first pedestal 15 is welded to the second bending section 10 and the second pedestal 16 to the third section 8.
  • Fig. 5 shows the punching shear reinforcement element 3 in a second side view, which is perpendicular to the first side view Fig. 4 lies.
  • a stand 15 is provided on each reinforcing bar 4, 5.
  • the feet 15 are designed as short, straight rods and each welded to the second bending areas 10 with one end 28.
  • a second, free end 29 of the feet 15 projects downward and serves as a footprint.
  • the second stand 16 is T-shaped and has a straight cross strut 30 which is welded with its ends 31 to the third section 8 of the reinforcing bar 4 and to the third section 8 of the reinforcing bar 5.
  • the cross strut 30 is on the side near the support 24 ( Fig.
  • the stand 16 has a straight longitudinal strut 32 which is welded at one end 33 in the middle to the cross strut 30.
  • a second, free end 34 of the longitudinal strut 32 projects downward to the side 25 of the plate 1 remote from the support ( Fig. 1 ). If the punching shear reinforcement element 3 with the free ends 29 and 34 of the feet 15 and 16 is placed on a horizontal, flat lower formwork, then the punching shear reinforcement element 3 also results in Fig. 3 orientations described.
  • the first section 5 and the second section 7 of each reinforcement bar 4, 5 lie in a common plane that is inclined to the plane of symmetry of the punching shear reinforcement element 3.
  • the third sections 8 run parallel to the plane of symmetry and are inclined to the second sections 7 by an angle ⁇ .
  • the angle ⁇ is from 2 ° to 10 °, in particular approximately 5 °.
  • the third sections 8 are each bent away from the other reinforcing bar 4, 5 away.
  • the fact that the third sections 8 compared to the second sections 7 in the in Fig. 5 shown second side view are inclined by the angle ⁇ , there is a distance o between the third sections 8, which is greater than the width p, measured at the same point, of the punching shear reinforcement element 3 on the second sections 7.
  • the distances o and p are measured in a common plane which is parallel to the plane in which the ends 29 and 34 of the feet 15 and 16 are located. If the punching shear reinforcement element 3 with the feet 15 and 16 is placed on a flat, horizontal surface, the distances o and p are measured horizontally.
  • the distance o is greater than the width p in the area between the cross strut 30 and the second reinforcement sections 14. Because the width p is smaller than the distance o, two punching shear reinforcement elements 3 can be pushed into one another, so that the second sections 7 of one punching shear reinforcement element 3 project into the area between the cross strut 30 and the second reinforcement sections 14 of the other punching shear reinforcement element 3.
  • the distance between the reinforcing bars 4 and 5 is slight smaller than the assigned width p at the second sections 7.
  • the punching reinforcement elements 3 can be pushed into one another by inclining the punching reinforcement elements 3.
  • the cross strut 30 is advantageously arranged such that it specifies a favorable distance between the punching shear reinforcement elements 3.
  • FIG. 5 shows how Fig. 5 shows, the second sections 7 protrude into slots 37 and 38 of the anchoring element 17.
  • Fig. 6 shows the anchoring element 17 in plan view.
  • the anchoring element 17 has two slots 35 and 36 on one narrow side and the slots 37 and 38 on the opposite narrow side.
  • the anchoring element 17 is rectangular.
  • the slots 35 and 36 have a significantly greater depth than the slots 37 and 38.
  • the first sections 6 can be arranged in the slots 35 and 36 despite their great inclination with respect to the anchoring element 17.
  • Fig. 7 shows a reinforcement bar 5 in side view.
  • the first section 6 has a length i
  • the second section 7 has a length k
  • the third section 8 has a length 1.
  • the lengths i, k and 1 are up to the anchoring sections 13, 14 and up to the bending sections 9, 10 measured. Length 1 is greater than length k and length i is less than length k.
  • the reinforcement bar 10 is bent with a continuous radius.
  • the bending radii are the same size in both bending sections 9, 10.
  • the reinforcing bar 5 has a diameter q, which is advantageously from 8 mm to 32 mm.
  • the reinforcement bar 5 is made of reinforcing steel, in particular of corrugated reinforcing steel.
  • the reinforcing bar 5 has a diameter r which is significantly larger than the diameter q. The diameter r is advantageously 2 to 5 times, in particular approximately 3 times the diameter q.
  • Fig. 8 shows the arrangement of the bending reinforcement 18 and 19. How Fig. 8 shows, the bending tensile reinforcements 18 and 19 are arranged in a grid, the grid width of which is smaller in the area of the support 2 than in the area away from the support 2.
  • the bending tensile reinforcements 18 and the bending tensile reinforcements 19 are each characterized by a plurality of straight ones, with bends 40 ( Fig. 1 ) provided reinforcing bars, which are arranged parallel to each other and at a distance from each other.
  • the bends 40 which are arranged at the ends of the flexural reinforcements 19 in a manner corresponding to the ends of the flexural reinforcements 18, serve to anchor the reinforcing bars.
  • the bending pressure reinforcement is arranged in the area of the support 2 with a smaller distance than in the areas facing away from the support 2.
  • the bending pressure reinforcement 20, 21 is left out.
  • the bending pressure reinforcements 20 and 21 are each formed by a plurality of straight reinforcement bars, which are arranged parallel to one another and at a distance from one another.
  • Fig. 10 shows the arrangement of the connecting reinforcement 39, which in the exemplary embodiment has sections extending radially to the longitudinal axis of the support. How Fig. 10 also shows, 2 column reinforcements 41 are provided within the column.
  • Fig. 11 shows an alternative arrangement of punching shear reinforcement elements 3 in a plate 1.
  • a support 2 is arranged with a square cross section.
  • a first row of punching shear reinforcement elements 3 close to the support is arranged such that the first anchoring sections 13 lie below the support section.
  • the first bending sections 9 are arranged on a line 22 which extends at a distance b around the extension of the support section.
  • a second row of punching shear reinforcement elements 3 is arranged in such a way that the first bending sections 9 lie on a second line 23 at a distance c around the column section.
  • the second row of punching shear reinforcement elements 3 is inserted into the punching shear reinforcement elements 3 arranged on the sides of the support 2.
  • No second row of punching shear reinforcement elements 3 is provided on the punching shear reinforcement elements 3 arranged in the region of the corners.
  • additional punching shear reinforcement elements 3 can be arranged here.
  • the 12 to 14 show the steps in making the plate 1. How Fig. 12 shows, the lower, distal bending tensile reinforcement 18 and the distal bending tensile reinforcement 19 and the connecting reinforcement 39 are first introduced. How Fig. 13 shows, the punching shear reinforcement elements 3 are then set up. The punching shear reinforcement elements 3 are placed with their feet 15 and 16 on a lower formwork, not shown. How Fig. 13 shows, the second bending sections 10 lie in a plane with the most distant, lowest bending reinforcement 18. Then, as Fig. 14 shows the bending pressure reinforcements 21 and 20 introduced. How Fig. 14 shows, the first bending sections 9 lie in one plane with the uppermost, next to the column bending pressure reinforcement 20.
  • Die 12 to 14 show the principle of installation, so that not all required reinforcement accessories such as brackets, spacers or the like are shown. Since the feet 15 and 16 protrude up to the outside of the plate 3, it is provided that the feet 15 and 16 are provided with a corrosion protection, for example with a, at least in the areas of 3 cm to 5 cm adjacent to the outside of the plate 1 Painting or with a plastic coating or that the base is at least partially made of stainless steel or plastic.
  • Fig. 15 shows an embodiment of a plate 51 which is designed as a ceiling plate and rests on a support 52.
  • the same reference numerals identify the same elements as in the previous figures.
  • the plate 51 has one side near the support 24, which forms the underside of the plate 51, and a side remote from the support 25, which forms the upper side of the plate.
  • a bending pressure reinforcement 20 running in the longitudinal direction and a bending pressure reinforcement 21 running in the transverse direction are provided adjacent to the side 24 near the support.
  • Adjacent to the side 25 remote from the support, a bending tensile reinforcement 18 remote from the support and a bending tensile reinforcement 19 remote from the support are provided in the transverse direction.
  • Connection reinforcements 39 protrude from the support 52 into the plate 51.
  • Punching shear reinforcement elements 53 are arranged in the plate 51.
  • the punching shear reinforcement elements 3 have first anchoring sections 13.
  • the first anchoring sections 13 of the punching shear reinforcement elements 53 next to the column are arranged in an extension of the column gating. In the schematic sectional illustration shown, three punching shear reinforcement elements 53 are pushed into one another.
  • the punching shear reinforcement elements 53 have a first section 6, a second section 7 and a third section 8. Between the first section 7 and the second section 8 a first bending section 9 is provided and between the second section 7 and the third section 8 a second Bending section 10.
  • the anchoring element 17 is arranged adjacent to the first bending section 9.
  • the first bending section 9 is how Fig. 15 shows, arranged in one plane with the bending pressure reinforcement 20 and the second bending section 10 in one plane with the bending tensile reinforcement 18.
  • the punching shear reinforcement element 53 has two feet 15, of which in Fig. 16 one is shown and which are each welded to the first bending section 9.
  • a second stand 16 is fixed to the two third sections 8.
  • the feet 15 and 16 are also preferably provided with corrosion protection at least in the area adjacent to the side 24 near the support.
  • the two reinforcement bars 4 and 5 are connected to one another both via the anchoring element 17 and via the cross strut 30 of the base 16.
  • the punching shear reinforcement elements 53 differ from the punching shear reinforcement elements 3 only in the arrangement and alignment of the feet 15 and 16, which define the installation position.
  • the alignment of the individual sections 6, 7 and 8 with respect to the side 24 near the support and the side 25 remote from the support is the same in all of the exemplary embodiments.
  • the distance between the first anchoring section 13 and the extension of the support section is advantageously less than twice the diameter of the reinforcing bar in all exemplary embodiments.
  • the shear slenderness of the plates 1, which is designed as a foundation, is advantageously at most 4.0, in particular 1.25 to 3.0.
  • the slenderness of the plate 51, which is designed as a ceiling plate, can also be significantly greater.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Reinforcement Elements For Buildings (AREA)
EP19202727.4A 2015-03-17 2015-03-17 Élément d'armature de poinçonnement et construction dotée d'une plaque dotée d'un élément d'armature de poinçonnement Active EP3617415B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP19202727.4A EP3617415B1 (fr) 2015-03-17 2015-03-17 Élément d'armature de poinçonnement et construction dotée d'une plaque dotée d'un élément d'armature de poinçonnement
HUE19202727A HUE057759T2 (hu) 2015-03-17 2015-03-17 Átszúródási vasalatelem és egy átszúródási vasalatelemmel ellátott lemezzel rendelkezõ építmény
PL19202727T PL3617415T3 (pl) 2015-03-17 2015-03-17 Element zbrojeniowy na przebicie i budowla z płytą z elementem zbrojeniowym na przebicie

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP19202727.4A EP3617415B1 (fr) 2015-03-17 2015-03-17 Élément d'armature de poinçonnement et construction dotée d'une plaque dotée d'un élément d'armature de poinçonnement
EP15000785.4A EP3070225B1 (fr) 2015-03-17 2015-03-17 Élément d'armature de poinçonnement et construction dotée d'une plaque comprenant un élément d'armature de poinçonnement

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP15000785.4A Division EP3070225B1 (fr) 2015-03-17 2015-03-17 Élément d'armature de poinçonnement et construction dotée d'une plaque comprenant un élément d'armature de poinçonnement
EP15000785.4A Division-Into EP3070225B1 (fr) 2015-03-17 2015-03-17 Élément d'armature de poinçonnement et construction dotée d'une plaque comprenant un élément d'armature de poinçonnement

Publications (2)

Publication Number Publication Date
EP3617415A1 true EP3617415A1 (fr) 2020-03-04
EP3617415B1 EP3617415B1 (fr) 2021-10-20

Family

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Application Number Title Priority Date Filing Date
EP15000785.4A Active EP3070225B1 (fr) 2015-03-17 2015-03-17 Élément d'armature de poinçonnement et construction dotée d'une plaque comprenant un élément d'armature de poinçonnement
EP19202727.4A Active EP3617415B1 (fr) 2015-03-17 2015-03-17 Élément d'armature de poinçonnement et construction dotée d'une plaque dotée d'un élément d'armature de poinçonnement

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EP15000785.4A Active EP3070225B1 (fr) 2015-03-17 2015-03-17 Élément d'armature de poinçonnement et construction dotée d'une plaque comprenant un élément d'armature de poinçonnement

Country Status (5)

Country Link
EP (2) EP3070225B1 (fr)
DK (1) DK3070225T3 (fr)
ES (1) ES2774322T3 (fr)
HU (1) HUE057759T2 (fr)
PL (2) PL3617415T3 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112681533A (zh) * 2020-12-30 2021-04-20 九牧厨卫股份有限公司 一种连接件及整体卫浴设备

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1524926A (en) * 1924-04-16 1925-02-03 David Baker Smith Concrete-form tie and spacer
GB959044A (en) * 1960-10-07 1964-05-27 Rheinbau Gmbh Reinforcing element for ferro-concrete building parts
NL7205330A (fr) * 1971-04-23 1972-10-25
DE8803445U1 (fr) * 1988-03-15 1988-04-21 Dilcher, Wilfried, 7293 Pfalzgrafenweiler, De
DE9409138U1 (de) * 1994-06-06 1994-08-04 Dausend Hans Werner Abstandhalter für die obere Bewehrung
DE29903114U1 (de) 1999-02-20 1999-05-20 Syspro Gruppe Betonbauteile E Durchstanzbewehrung
DE202007014677U1 (de) * 2007-10-19 2009-02-26 Filigran Trägersysteme GmbH & Co. KG Gitterträger
KR20100050870A (ko) * 2008-11-06 2010-05-14 (주) 동양구조안전기술 조립철근 절곡형 전단보강체 및 그 설치구조
WO2014026781A1 (fr) 2012-08-13 2014-02-20 Filigran Trägersysteme GmbH & Co. KG Dalle en béton plate ou à éléments soutenue par points
CH707571A1 (fr) 2013-02-12 2014-08-15 Ancotech Ag Système de renforcement contre le poinçonnement avec des tiges ou des barres transversales ayant des têtes d'ancrage.

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1524926A (en) * 1924-04-16 1925-02-03 David Baker Smith Concrete-form tie and spacer
GB959044A (en) * 1960-10-07 1964-05-27 Rheinbau Gmbh Reinforcing element for ferro-concrete building parts
NL7205330A (fr) * 1971-04-23 1972-10-25
DE8803445U1 (fr) * 1988-03-15 1988-04-21 Dilcher, Wilfried, 7293 Pfalzgrafenweiler, De
DE9409138U1 (de) * 1994-06-06 1994-08-04 Dausend Hans Werner Abstandhalter für die obere Bewehrung
DE29903114U1 (de) 1999-02-20 1999-05-20 Syspro Gruppe Betonbauteile E Durchstanzbewehrung
DE202007014677U1 (de) * 2007-10-19 2009-02-26 Filigran Trägersysteme GmbH & Co. KG Gitterträger
KR20100050870A (ko) * 2008-11-06 2010-05-14 (주) 동양구조안전기술 조립철근 절곡형 전단보강체 및 그 설치구조
WO2014026781A1 (fr) 2012-08-13 2014-02-20 Filigran Trägersysteme GmbH & Co. KG Dalle en béton plate ou à éléments soutenue par points
CH707571A1 (fr) 2013-02-12 2014-08-15 Ancotech Ag Système de renforcement contre le poinçonnement avec des tiges ou des barres transversales ayant des têtes d'ancrage.

Also Published As

Publication number Publication date
EP3617415B1 (fr) 2021-10-20
EP3070225B1 (fr) 2019-11-27
PL3070225T3 (pl) 2020-07-27
EP3070225A1 (fr) 2016-09-21
DK3070225T3 (da) 2020-03-02
HUE057759T2 (hu) 2022-06-28
ES2774322T3 (es) 2020-07-20
PL3617415T3 (pl) 2022-01-31

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