NO892479L

NO892479L - ANCHORING FOR EXCELLENT CONSTRUCTION.

Info

Publication number: NO892479L
Application number: NO89892479A
Authority: NO
Inventors: Helge Schjaerve
Original assignee: Schjaerve A S Helge
Priority date: 1989-06-14
Filing date: 1989-06-14
Publication date: 1990-12-17
Also published as: NO892479D0

Description

Foreliggende oppfinnelse angår en forankring for utragende konstruksjon på murbygg, samt en fremgangsmåte for montering av en slik forankring ifølge kravenes innled-ning. The present invention relates to an anchorage for projecting construction on brick buildings, as well as a method for mounting such an anchorage according to the introduction of the claims.

Bygninger fra forrige og begynnelsen av dette århundre ble ofte oppført i mursten med etasjeskillere utført i tre-bjelkelag med panel over og under. For montering av balkonger ble stålbjelker boltet til siden av trebjelkene og i enkelte tilfeller ble motvekter i form av sten eller annet materiale lagt inn. Buildings from the last and the beginning of this century were often built in brick with floor dividers made in wooden beam layers with panels above and below. For the installation of balconies, steel beams were bolted to the side of the wooden beams and in some cases counterweights in the form of stone or other material were added.

Slike stålbjelker har i årenes løp rustet i betydelig grad, blant annet også grunnet luftforurensning,, slik at stålbjeikenes bærende tverrsnitt er redusert betydelig. I enkelte tilfeller er også balkonger fallt ned. Such steel beams have rusted to a considerable extent over the years, also due to air pollution, so that the load-bearing cross-section of the steel beams has been reduced significantly. In some cases, balconies have also fallen down.

Utbedring av balkonger og montering av nye eller større balkonger samt eventuell montering av andre utragende konstruksjoner, har vært vanskeliggjort av at fasadenes mur-vegger ofte ikke har vært sterke nok til å motstå det moment slike konstruksjoner medfører. Dette har blant annet sammen-heng med at f asadeveggene i denne tidsperiode ofte ikke var forankret til gulvene. Dersom det allikevel festes balkonger eller andre typer konstruksjoner til fasadeveggene, kan dette medføre fare for at fasadeveggen faller ut. Improvement of balconies and installation of new or larger balconies, as well as possible installation of other projecting structures, have been made difficult by the fact that the masonry walls of the facades have often not been strong enough to withstand the moment such constructions entail. This is partly related to the fact that the facade walls in this time period were often not anchored to the floors. If balconies or other types of construction are nevertheless attached to the facade walls, this may entail a risk of the facade wall falling out.

For montering av balkonger eller andre konstruksjoner har man i regelen tatt opp gulvet i leilighetene for å få tilgang til trebjelkelaget. Deretter er nye stålbjelker montert langsmed eller på tvers av trebjelkene. Stålbjelkene festes og føres ut gjennom fasadeveggen for å understøtte en balkong eller en annen konstruksjon. For the installation of balconies or other constructions, the floor of the apartments has generally been taken up to gain access to the wooden beam layer. New steel beams are then fitted lengthwise or across the wooden beams. The steel beams are fixed and led out through the facade wall to support a balcony or other construction.

Den foran beskrevne fremgangsmåte er kostbar blant annet fordi det i regelen medfører et større inngrep i den enkelte leilighet og betydelige -utbedringer av gulv og vegger etter gjennomført montering. The method described above is expensive, among other things, because it usually involves a major intervention in the individual apartment and significant improvements to the floor and walls after installation.

Av andre metoder som likeledes har vært benyttet, kan nevnes at utriggere har vært montert på loftet fra byggets midtvegg og ut over fasadeveggen og vertikale stag har således holdt balkongenes ytterkanter. Likeledes har det vært montert støtter fra bakken under betongenes ytre kanter. Alle de foran beskrevne metoder har hatt som mål å unngå å belaste fasadeveggen på en slik måte at denne trekkes ut. Of other methods that have also been used, it can be mentioned that outriggers have been mounted on the attic from the building's central wall and out over the facade wall, and vertical struts have thus held the outer edges of the balconies. Likewise, supports have been mounted from the ground under the outer edges of the concrete. All the methods described above have aimed to avoid straining the facade wall in such a way that it is pulled out.

Med forankringen og fremgangsmåten ifølge foreliggende oppfinnelse foreligger en mulighet til etablering av en sikker forankring for utragende konstruksjoner på eldre murbygninger uten å måtte gjennomføre større inngrep av gulv, himling eller vegger i byggets indre. Byggets leiligheter såvel som byggets 'omgivelser generes likeledes i betydelig mindre grad ved ombygningsarbeidene i forhold til de metoder som tidligere har vært benyttet. Dette oppnås med de i kravene anførte trekk. With the anchoring and the method according to the present invention, there is an opportunity to establish a secure anchoring for projecting structures on older brick buildings without having to carry out major interventions in the floor, ceiling or walls in the interior of the building. The building's apartments as well as the building's surroundings are also generated to a significantly lesser extent by the remodeling work compared to the methods that have been used in the past. This is achieved with the features listed in the requirements.

På tegningen viser fig. 1 et vertikalsnitt gjennom en gulvbjelke med skjematisk angivelse av forankringen ifølge oppfinnelsen, fig. 2 viser et horisontalsnitt langs II-II på fig. 1, fig. 3 viser et sideriss av en fastmontert stålbjelke og fig. 4 viser et tverrsnitt langs IV-IV på fig. 1. In the drawing, fig. 1 a vertical section through a floor beam with a schematic representation of the anchoring according to the invention, fig. 2 shows a horizontal section along II-II in fig. 1, fig. 3 shows a side view of a fixed steel beam and fig. 4 shows a cross-section along IV-IV in fig. 1.

Fig. 3 viser skjematisk prinsippet for forankringen ifølge foreliggende oppfinnelse hvor en stålbjelke 6 festet til en flensplate 8 er festet til en trebjelke 1 og rager gjennom en fasadevegg 7 og støttes vertikalt av denne. Fasadeveggen, fortrinnsvis en murvegg er godt egnet til å oppta vertikal belastning uten horisontale resultater. Ved plassering av en balkong e.l. konstruksjon på den utragende stålprofil 6 overføres momentet til trebjelken 1 og sikres til denne f.eks. som vist i fig. 1 og 2. Fig. 3 schematically shows the principle of the anchoring according to the present invention where a steel beam 6 attached to a flange plate 8 is attached to a wooden beam 1 and projects through a facade wall 7 and is supported vertically by this. The facade wall, preferably a brick wall, is well suited to absorb vertical loads without horizontal results. When placing a balcony etc. construction on the projecting steel profile 6, the torque is transferred to the wooden beam 1 and secured to this e.g. as shown in fig. 1 and 2.

I en perpendikulært til fasaden anordnet trebjelke i en etas j eskiller bores hull horisontalt inn for å oppta de horisontalt utad rettede krefter med forankring til en utragende bolt 2. For forankring av en stålprofil 6 benyttes fortrinnsvis minst to øvre forankringer med bolter 2 samt to nedre forankringer med bolter 9 som i det vesentlige vil oppta vertikale resultantkrefter. Holes are drilled horizontally in a wooden beam arranged perpendicular to the facade in a storey partition to accommodate the horizontally outward forces with anchoring to a protruding bolt 2. For anchoring a steel profile 6, preferably at least two upper anchorings with bolts 2 and two lower anchors are used anchorages with bolts 9 which will essentially absorb vertical resultant forces.

I de horisontale hull innsettes bøyler 4 som ytterst har påsveist boltene .2, slik at boltene rager ut av hullet i bjelken 1. Fra gulvet i byggets indre føres deretter låse-dybler 5 ned i trebjelken 1 og gjennom bøylen 4 hvoretter en herdbar masse, f.eks. keramisk masse eller epoksymasse presses ned til de horisontale hull gjennom derfor borede skråhull fra gulvet for å fylle ut disse slik at dette etter herding er dannet en forankring som med god sikkerhet for-ankrer bolten 2 til trebjelken 1 ved hjelp av låsedyblene 5.' In the horizontal holes, braces 4 are inserted which have the bolts .2 welded on at the end, so that the bolts protrude from the hole in the beam 1. From the floor in the interior of the building, locking dowels 5 are then driven down into the wooden beam 1 and through the brace 4 after which a hardenable mass, e.g. ceramic mass or epoxy mass is pressed down to the horizontal holes through therefore drilled slanted holes from the floor in order to fill them in so that, after hardening, this forms an anchorage which securely anchors the bolt 2 to the wooden beam 1 by means of the locking dowels 5.'

I steden for den ovenfor beskrevne bøyle 4 kan forankringsstålet foreligge i form av en lengre bolt eller rør med utboringer for innføring av ståldyblene, idet de- dertil nødvendige måleverktøyers nøyaktighet kan medføre at ståldybler kan innføres gjennom slike hull, med stor sikkerhet. Instead of the above-described hoop 4, the anchoring steel can be in the form of a longer bolt or tube with bores for inserting the steel dowels, as the accuracy of the measuring tools required for this can mean that steel dowels can be inserted through such holes, with great safety.

Claims

1. Anchorage for projecting construction on brick buildings with wooden beams as supporting structure in floor dividers, CHARACTERIZED BY the fact that anchoring steel is inserted into a horizontal hole in a wooden beam running perpendicular to the building's outer wall and includes an outwardly projecting bolt (2) connected to the anchoring steel, that several steel dowels are driven from the floor above the wooden beam or from the ceiling below the wooden beam, through the beam and through the anchoring steel, that the horizontal hole is filled with hardenable mass, for example epoxy or ceramic mass that connects the anchoring steel with the steel dowels and thus the wooden beam, and that a protruding steel profile is attached with a flange to several anchoring steel bolts for mounting a construction projecting from the brick wall, for example a balcony, as the steel profile protrudes through the building's facade wall and is supported vertically against it.

2. Anchoring according to claim 1, CHARACTERIZED IN THAT the horizontal hole is filled with hardenable mass, for example epoxy or ceramic mass which connects the anchoring steel with the steel dowels and thus the wooden beam.

3. Procedure for installing anchoring according to claim 1, CHARACTERIZED BY removing a part of the brick building's facade wall, drilling horizontal holes through wooden beams arranged perpendicular to the brick wall in the floor dividers, introducing anchoring steel with outward projecting, preferably connected to the anchoring steel, into the holes welded bolts, to introduce steel dowels from the floor above the wooden beam or from the ceiling below the wooden beam using suitable methods for recording the location of the anchoring steel, through the floor or ceiling, the wooden beam and, the anchoring steel, to introduce ceramic mass to the horizontal holes for filling these and connecting the steel dowels with the anchoring steels, and mounting projecting steel profiles with their vertical flanges to the projecting bolts for later installation of a projecting structure, for example a balcony on the steel profiles.

4. Method according to claim 3, CHARACTERIZED BY introducing ceramic mass to the horizontal holes for filling them and connecting the steel dowels with the anchoring steels.