EP1596017B1 - Procédé pour augmenter la capacité portante, la rigidité et l'amortissement des vibrations d'un système de plafond avec des poutres en bois et système de plafond avec des poutres en bois avec capacité portante, rigidité et amortissement des vibrations augmentées. - Google Patents

Procédé pour augmenter la capacité portante, la rigidité et l'amortissement des vibrations d'un système de plafond avec des poutres en bois et système de plafond avec des poutres en bois avec capacité portante, rigidité et amortissement des vibrations augmentées. Download PDF

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Publication number
EP1596017B1
EP1596017B1 EP05009779A EP05009779A EP1596017B1 EP 1596017 B1 EP1596017 B1 EP 1596017B1 EP 05009779 A EP05009779 A EP 05009779A EP 05009779 A EP05009779 A EP 05009779A EP 1596017 B1 EP1596017 B1 EP 1596017B1
Authority
EP
European Patent Office
Prior art keywords
wooden
joist
plank
ceiling
joists
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.)
Not-in-force
Application number
EP05009779A
Other languages
German (de)
English (en)
Other versions
EP1596017A3 (fr
EP1596017A2 (fr
Inventor
Dr. Ing. Gerhard Berg Prof.
Dipl. Ing. Günther Ostkamp Prof.
Dipl. Ing. Nikolaus Nebgen Prof.
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP1596017A2 publication Critical patent/EP1596017A2/fr
Publication of EP1596017A3 publication Critical patent/EP1596017A3/fr
Application granted granted Critical
Publication of EP1596017B1 publication Critical patent/EP1596017B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G23/00—Working measures on existing buildings
    • E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
    • 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
    • E04B5/02—Load-carrying floor structures formed substantially of prefabricated units
    • E04B5/12—Load-carrying floor structures formed substantially of prefabricated units with wooden beams
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G23/00—Working measures on existing buildings
    • E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
    • E04G23/0218—Increasing or restoring the load-bearing capacity of building construction elements
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G23/00—Working measures on existing buildings
    • E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
    • E04G23/0218—Increasing or restoring the load-bearing capacity of building construction elements
    • E04G23/024—Increasing or restoring the load-bearing capacity of building construction elements of basement floors
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G23/00—Working measures on existing buildings
    • E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
    • E04G23/0218—Increasing or restoring the load-bearing capacity of building construction elements
    • E04G2023/0248—Increasing or restoring the load-bearing capacity of building construction elements of elements made of wood

Definitions

  • the invention relates to a method for increasing the load capacity, rigidity and vibration damping of a beamed ceiling according to the preamble of claim 1 and a wooden beam ceiling arrangement with increased load capacity, rigidity and vibration damping according to the preamble of claim 4.
  • a floor structure supported on a supporting floor wherein the supporting floor may be a wooden beam ceiling or a concrete floor.
  • the floor structure comprises wooden slats resting on fiber mats on the supporting floor.
  • a soundproof overlay is attached, on which in turn a floor covering rests.
  • the invention has for its object to provide a method for increasing the carrying capacity, stiffness and vibration damping of a wooden beam ceiling arrangement and a wooden beam ceiling arrangement with increased capacity, stiffness and vibration damping, which are limited to measures on the bottom of an existing wooden beam ceiling and unnecessary opening and de-coring of the compartments ,
  • a static upgrade of load-bearing wooden beams is achieved by clamping the wooden beams with wooden planks in a wooden beam ceiling arrangement.
  • the wooden planks are aligned in the axial direction of the wooden beams and positioned at a distance from the supporting wooden beams.
  • the existing structure of plaster on plaster carrier and saving formwork is suitable. Is the plaster on Putzhari and Sparschalung not available, eg in a visible wooden beam ceiling or in the production of new wooden beam ceilings, so a separate spacer is required.
  • full-thread screws are screwed through the wood plank obliquely or vertically upwards into the wooden beams for shear-resistant screwing, in the central region alternately obliquely to a vertical and in the support area both obliquely directed from below to the respective support and running vertically.
  • the full-thread screws thus form connecting means which, viewed statically, represent the tension- and pressure-resistant oblique bars of a hidden truss with wooden beams as upper flange and wooden plank as lower flange. While in the central area only oblique rods are present, for assembly reasons in the vicinity of the support a change of the truss system from only diagonal bars to vertical pressure bars and oblique to the support pointing tensile bars must be done.
  • the static system represents a prestressed by superelevation and shear reinforcement wooden beams, which in use and breaking load shows an analogous to prestressed concrete bearing behavior, because the pair of forces from the predominantly pressure-loaded upper wooden beams and the zugbelasteten lower wooden screed forms a larger lever arm and thus record much higher moments can be as before.
  • the full-thread screws follow in terms of distance and number of layers, the transverse force profile, which increases from the middle of the wooden beams to the support.
  • the spacer between the beam and screed can be formed by the existing plaster on substructure or a newly arranged wood wool lightweight panel.
  • a spring-suspended underside can be arranged.
  • the wooden planks take over the function of a safe and better-oriented substructure for the lower ceiling and at the same time form compartments for damping the cavity between the plaster and planking in order to improve the sound insulation.
  • the advantage of the method and the beam ceiling arrangement is that due to the stiffening of the system, the effectiveness of conventional measures to improve the air and impact noise protection is additionally increased, or that in an old, may not more so viable wood beam ceiling arrangement only the aforementioned conventional measures to improve the air and impact noise protection are feasible.
  • FIG. 1 consists of the existing wooden beam ceiling of load-bearing wooden beams 10 with a floor covering 12 on the top, a Gefach whllung 14, and a Sparschalung with plaster base 16 and plaster 18 on the bottom.
  • the existing saving formwork with plaster base 16 and plaster 18 serves as a spacer for a mounted on the underside of wooden plank 20, which is connected to the supporting wooden beams 10 of the original Wooden beam ceiling by screws 22 shear-resistant screwed.
  • plaster does not exist on plaster base and saver formwork, e.g. in a visible wooden beam ceiling or in the production of new wooden beam ceilings, so is suitable as a spacer a Holzwollebachbauplatte the thickness of 25 to 40 mm in a special way, because their perforation leads to even better damping of the beam rigors.
  • the wooden planks 20 form a well-oriented substructure for a spring-suspended ceiling soffit 24 and a sufficient space for arranging soundproofing materials 26th
  • Fig. 2 shows the representation of the assembly process for undervoltage of the wooden beams 10 with wooden planks 20.
  • a pre-drilled plank is pressed by means of formwork support 28 and hydraulics vertically upwards. This transmits the force on the spacer, such as plaster 18 and economy shuttering 16 or a Holzwollebachbauplatte, in the overlying wooden beams 10. The existing deflection of the wooden beam 10 is thereby partially or completely reduced.
  • the reaction force is displaced over a load distribution 30 to a larger area of the floor 32 to reduce deflection of the floor 32.
  • FIG. 3 an exaggerated representation of the deflection of Wood beam 20 and wooden beams 10, wherein the wooden beam 10 and the wood plank 20 are bent upwards.
  • the wooden beams 10 and the wooden beams 20 are screwed shear-resistant, wherein the screws 22 form oblique rods in the central beam area and change to the supports 36, 3B towards vertical pressure bars and oblique to the supports pointing Gystäben.
  • the change to vertical pressure bars is required for assembly reasons, because of the walls in the area of the supports 36, 38 a diagonal screwing from below, directed away from the support, is not feasible.
  • FIG. 4 Figure 11 shows a graph of deflection versus load for a bar with no undervoltage and undervoltage determined in a load loading trial. In both cases results in a linear load deformation behavior without permanent deformation in multiple loads.
  • the measure according to the invention leads to a doubling of the rigidity with respect to the single beam in the load deformation test. This suggests that the load bearing capacity of the wooden beam ceiling is significantly improved. As a result, even with older and possibly no longer so load-bearing beam cross-sections, especially for larger spans a very cost-effective and economical improvement of the support system can be achieved.
  • Fig. 5 shows the cross section through a wooden beam 10 with a spaced apart and shear-resistant screwed to the wooden beams 10 wood plank 20.
  • the voltage curve is shown, which would occur in the wooden beam 10 without composite.
  • the figure on the right shows the voltage curve of the composite system of wooden beams 10 and shear-resisting wooden screed 20.
  • the figure shows that the invention also leads to a voltage rearrangement due to the load transfer, which, despite doubling the external load, spares the old wooden beam 10 and the new screed 20 according to FIG their predictable load capacity.
  • Fig. 6 shows a graphical representation of the airborne sound insulation over the frequency. It can be seen that in the relevant frequency range between 100 and 3150 Hz, the airborne sound insulation of the original ceiling is significantly improved by the undervoltage.
  • Fig. 7 shows a graphical representation of the impact sound level above the frequency also for a conventional wooden beam ceiling and an underfloor ceiling with soft flooring. Again, within the relevant frequency range, the significant improvement in the impact sound protection is apparent.
  • the ceiling height is only reduced by 7 to 10 cm. Since typical wooden plank ceiling arrangements requiring renovation are predominantly found in old buildings with already higher rooms, the reduction of the room height does not represent a loss of the impression of space.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mechanical Engineering (AREA)
  • Electrochemistry (AREA)
  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Building Environments (AREA)
  • Rod-Shaped Construction Members (AREA)
  • Vibration Prevention Devices (AREA)
  • Floor Finish (AREA)

Claims (7)

  1. Procédé d'augmentation de la capacité portante, de la rigidité et de l'amortissement des vibrations d'une disposition de plafond en bois constitué de poutres en bois (10) et d'une disposition supplémentaire de madriers (20) à distance des poutres en bois (10), caractérisé en ce que les poutres en bois portantes (10) d'un plafond existant sont renforcées statiquement en positionnant un madrier en bois (20) parallèlement à la poutre en bois (10) dans la position de montage au-dessous de la poutre (10) par l'intermédiaire d'écarteurs (16, 18), en ce que la courbure existante de la poutre en bois (10) est réduite par une force dirigée verticalement vers le haut, force qui est introduite dans le madrier (20), au centre de celui-ci, ainsi que dans la poutre en bois (10) via les écarteurs (16, 18), qu'ensuite le madrier (20) est vissé à la poutre en bois (10) de manière résistante au cisaillement, afin que la poutre (10) soit précontrainte par le madrier assemblé de manière résistante au cisaillement (20) et qu'un déplacement de charge et de contrainte à la nouvelle section composite ait lieu après le relâchement de la force extérieure et en ce que ces étapes de procédé sont répétées successivement pour toutes les poutres en bois (10) du plafond.
  2. Procédé suivant la revendication 1, caractérisé en ce que pour l'assemblage résistant au cisaillement d'un madrier (20) et d'une poutre en bois (10), des vis à filetage complet sont vissées diagonalement et perpendiculairement vers le haut à travers le madrier (20) et dans la poutre en bois (10), afin d'obtenir une poutre en treillis cachée avec une poutre (10) et un madrier (12) comme membrures supérieure et inférieure et en ce que le nombre et l'écart des vis à filetage complet (22) sont adaptés à l'allure de la force de cisaillement et aux conditions de montage au support (36, 38).
  3. Procédé suivant la revendication 1 et 2, caractérisé en ce qu'un plafond flottant suspendu élastiquement (24) avec une isolation de l'espace creux est monté au-dessous des madriers (20).
  4. Disposition de plafond en bois avec une capacité portante, une rigidité et un amortissement des vibrations accrus, plafond constitué de poutres en bois (10) et d'une disposition supplémentaire de madriers en bois (20) à distance des poutres en bois (10), caractérisé en ce que sous un plafond en bois existant, constitué de poutres en bois (10), un madrier en bois (20) est positionné parallèlement à la poutre en bois (10) respective dans la position de montage au-dessous de la poutre (10) via des écarteurs (16, 18), et en ce que le madrier en bois (20) est vissé de manière résistante au cisaillement à la poutre en bois (10) et constitue une section composite précontrainte, rigidifiée.
  5. Disposition de plafond en bois suivant la revendication 4, caractérisé en ce que le vissage résistant au cisaillement d'un madrier (20) et d'une poutre (10) est constitué de vis à filetage complet (22), qui s'étendent diagonalement et perpendiculairement vers le haut et forment une poutre en treillis cachée avec une poutre (10) et un madrier (20) comme membrures supérieure et inférieure et en ce que le nombre et l'écart des vis à filetage complet (22) sont adaptés à l'allure de la force de cisaillement et aux conditions de montage au support (36, 38).
  6. Disposition de plafond en bois suivant la revendication 4 ou 5, caractérisé en ce que l'écarteur entre une poutre (10) et un madrier (20) est formé par le crépi existant (18) sur une sous-construction (16) ou par un panneau léger en laine de bois à disposer nouvellement.
  7. Disposition de plafond en bois suivant une des revendications 4 à 6, caractérisé en ce qu'un plafond flottant (24) suspendu élastiquement avec une isolation de l'espace creux est monté au-dessous des madriers (20).
EP05009779A 2004-05-06 2005-05-04 Procédé pour augmenter la capacité portante, la rigidité et l'amortissement des vibrations d'un système de plafond avec des poutres en bois et système de plafond avec des poutres en bois avec capacité portante, rigidité et amortissement des vibrations augmentées. Not-in-force EP1596017B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004022860 2004-05-06
DE102004022860 2004-05-06

Publications (3)

Publication Number Publication Date
EP1596017A2 EP1596017A2 (fr) 2005-11-16
EP1596017A3 EP1596017A3 (fr) 2007-04-11
EP1596017B1 true EP1596017B1 (fr) 2010-06-30

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ID=34936137

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05009779A Not-in-force EP1596017B1 (fr) 2004-05-06 2005-05-04 Procédé pour augmenter la capacité portante, la rigidité et l'amortissement des vibrations d'un système de plafond avec des poutres en bois et système de plafond avec des poutres en bois avec capacité portante, rigidité et amortissement des vibrations augmentées.

Country Status (3)

Country Link
EP (1) EP1596017B1 (fr)
AT (1) ATE472641T1 (fr)
DE (1) DE502005009811D1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1401916B1 (it) * 2010-09-06 2013-08-28 Masci Di Struttura a volta cava perfezionata
CN102587684B (zh) * 2011-12-31 2015-03-04 北京筑福国际工程技术有限责任公司 既有框架建筑采用并联隔震支座加固的安装托换方法
CN113389397B (zh) * 2021-06-17 2022-11-22 北京工业大学 一种适用于木结构节点的变形放大型摩擦耗能雀替

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0034224A3 (fr) * 1980-02-15 1982-09-15 Emergo Chemical Coating, N.V. Procédé de renforcement de poutres de bois et poutres ainsi obtenues
GB8332533D0 (en) * 1983-12-06 1984-01-11 Dinardo & Partners Restoration and strengthening of timber components
US6325583B1 (en) * 1997-09-22 2001-12-04 Sfs Industrie Holding Ag Screw for fixing wooden laths on a roof substructure or a wall foundation
GB9824328D0 (en) * 1998-11-06 1998-12-30 Monarflex Ltd Batten assembly
FR2813335B1 (fr) * 2000-08-31 2003-05-30 T D P Dispositif de renovation des structures bois

Also Published As

Publication number Publication date
EP1596017A3 (fr) 2007-04-11
ATE472641T1 (de) 2010-07-15
EP1596017A2 (fr) 2005-11-16
DE502005009811D1 (de) 2010-08-12

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