NO162671B

NO162671B - PROCEDURE FOR AA PROVIDES A ARMED WOODEN BAR AND DEVICE FOR EXECUTING THE PROCEDURE.

Info

Publication number: NO162671B
Application number: NO842042A
Authority: NO
Inventors: Erik Thelberg
Original assignee: Gryts Bruk Ab
Priority date: 1983-05-24
Filing date: 1984-05-23
Publication date: 1989-10-23
Also published as: FI77297B; NO162671C; SE8302904L; SE449387B; FI842053A0; DK253984D0; DK164519C; DK164519B; SE8302904D0; NO842042L; FI842053A; DK253984A; FI77297C

Description

Den foreliggende oppfinnelse angår en fremgangsmåte The present invention relates to a method

for tilveiebringelse av en armert murverksbjelke tc• for the provision of a reinforced masonry beam tc•

Ved muring av bjelker av f.eks. tegl over større åpninger, som f.eks. vinduer og portaler med stor spenn-vidde, er det tidligere kjent å tilveiebringe langsgående armering ved murskift ved innlegging av strekkarmering i liggefugene. Ved denne kjente fremgangsmåte oppnås en kon-struksjon hvori horisontale sprekker mellom murfuger og murblokker lett oppstår, hvorved det nederste skift som regel faller ned. En bidragende årsak til dette kan være at armeringsstengene blir svekket på grunn av rustangrep. When bricking beams of e.g. tiles over larger openings, such as windows and portals with a large span, it is previously known to provide longitudinal reinforcement when replacing masonry by inserting tensile reinforcement in the laying joints. With this known method, a construction is achieved in which horizontal cracks between masonry joints and masonry blocks easily occur, whereby the bottom shift usually falls down. A contributing reason for this may be that the reinforcing bars are weakened due to rust attack.

Det er også tidligere kjent å utføre det underste It is also previously known to perform the following

skift av et såkalt spennarmert, prefabrikert teglskift. replacement of a so-called tension-reinforced, prefabricated brick replacement.

Denne fremgangsmåte byr på den ulempe at det nevnte teglskift ikke kan samarbeide med de ovenforliggende murblokker. This method has the disadvantage that the aforementioned brick shift cannot cooperate with the masonry blocks above.

Hovedformålet med den foreliggende oppfinnelse er i første rekke å forsøke å minske de nevnte ulemper ved til-veiebringelsen av en armert murverksbjelke. The main purpose of the present invention is primarily to try to reduce the aforementioned disadvantages in the provision of a reinforced masonry beam.

Dette formål oppnås ved hjelp av en fremgangsmåte ifølge oppfinnelsen for å tilveiebringe en armert murverksbjelke etc. ved i liggefugen hos murskift å innmure langsgående armering, og fremgangsmåten er særpreget ved at det for armeringen anvendes såvel langsgående trådformig armering som innmures i liggefugen hos murskift lagt inn i fugemassen, og tverrgående, trådformig armering som rager ut fra den langsgående, trådformige armerings plan og som anvendes for armering lagt inn i fugemassen i murskiftets støtfuger. This purpose is achieved with the help of a method according to the invention for providing a reinforced masonry beam, etc. by embedding longitudinal reinforcement in the lay-up joint in brickwork, and the method is characterized by the fact that longitudinal wire-shaped reinforcement is used for the reinforcement, which is built into the lay-in joint in brickwork laid in in the joint compound, and transverse, wire-shaped reinforcement that protrudes from the longitudinal, wire-shaped reinforcement plane and which is used for reinforcement inserted into the joint compound in the butt joints of the masonry replacement.

Et ytterligere mål med oppfinnelsen er å tilveie- A further aim of the invention is to provide

bringe en anordning som egner seg for anvendelse ved utfør-elsen av en fremgangsmåte ifølge oppfinnelsen. bring a device that is suitable for use in carrying out a method according to the invention.

Dette ytterligere mål oppnås ved hjelp av en anordning for utførelse av fremgangsmåten ifølge oppfinnelsen for å tilveiebringe en armert murverksbjelke etc. ved i liggefugen hos murskift å innmure langsgående armering, og anordningen er særpreget ved at en armering dannes av et separat stykke som består av et langsgående trådformig armeringselement fra hvilket flere tverrgående trådformige armeringselementer rager ut i høyderetning. This further aim is achieved by means of a device for carrying out the method according to the invention for providing a reinforced masonry beam etc. by embedding longitudinal reinforcement in the laying joint of brickwork, and the device is characterized by the fact that a reinforcement is formed from a separate piece consisting of a longitudinal wire-like reinforcing element from which several transverse wire-like reinforcing elements protrude in the height direction.

Oppfinnelsen er nedenfor beskrevet ved hjelp av et foretrukket utførelseseksempel under henvisning til tegningene, på hvilke Fig. 1 viser en skjematisk perspektivskisse av en teglbjelke fremstilt ifølge oppfinnelsen med tilhørende armering, The invention is described below using a preferred embodiment with reference to the drawings, in which Fig. 1 shows a schematic perspective sketch of a brick beam produced according to the invention with associated reinforcement,

Fig., 2 viser et sideoppriss av en fremstilt tegl- Fig. 2 shows a side elevation of a manufactured brick

bjelke som strekker seg over en vindusåpning, og beam extending over a window opening, and

Fig. 3 viser perspektivisk en armeringsanordning ifølge oppfinnelsen. Fig. 3 shows a perspective view of a reinforcement device according to the invention.

Ifølge oppfinnelsen tas det sikte på å fremstille en armert murverksbjelke som er egnet for å plasseres over åpninger, som vinduer eller portaler, men oppfinnelsen er også egnet for anvendelse ved fremstilling av murverksbjeiker som kan anvendes ved bygging av armerte teglvegger eller mur-blokkvegger som er utsatt for såvel sidetrykk som vertikal belastning. According to the invention, the aim is to produce a reinforced masonry beam that is suitable for being placed over openings, such as windows or portals, but the invention is also suitable for use in the manufacture of masonry beams that can be used in the construction of reinforced brick walls or brick-block walls that are exposed to both lateral pressure and vertical load.

En anordning 1 som er egnet for utførelse av en fremgangsmåte ifølge oppfinnelsen for å tilveiebringe en armert murverksbjelke 2, innbefatter en langsgående armering 3 A device 1 which is suitable for carrying out a method according to the invention to provide a reinforced masonry beam 2, includes a longitudinal reinforcement 3

med en rekke tverrarmeringer 4 som strekker seg på tvers i forhold til den langsgående armering. Anordningen 1 kan med fordel være fremstilt av f.eks. trådformige stenger som består av varmforsinket eller rustfritt stål. Den langsgående armering 3 dannes ifølge det viste utførelseseksempel av to parallelt med hverandre forløpende separate stenger, men den kan selvfølgelig også innbefatte et annet antall stang-formige stykker med en annen utstrekning enn hva som er vist på tegningene. Tverrarmeringen 4 dannes av tråder som er blitt vinkelbokket og/eller fremstilt på annen måte og som med de respektive frie ender 4A og 4B er forbundet, f.eks. ved sveising, med hver sin langsgående stang 3. Avstanden L mellom to tverrarmeringstråder 4 som ligger inntil hverandre og rager ut på en felles side av den langsgående armering 3, er valgt slik at den hovedsakelig tilsvarer lengden av en teglsten 5 eller en annen egnet mursten som utnyttes ved oppbyggingen av en murverksbjelke 2 ved en fremgangsmåte ifølge oppfinnelsen. with a number of transverse reinforcements 4 which extend transversely in relation to the longitudinal reinforcement. The device 1 can advantageously be produced by e.g. wire-shaped rods consisting of hot-dip galvanized or stainless steel. The longitudinal reinforcement 3 is formed according to the embodiment shown by two separate rods running parallel to each other, but it can of course also include a different number of rod-shaped pieces with a different extent than what is shown in the drawings. The cross reinforcement 4 is formed by wires which have been bent at an angle and/or produced in another way and which are connected with the respective free ends 4A and 4B, e.g. by welding, each with its own longitudinal bar 3. The distance L between two transverse reinforcing wires 4 which lie next to each other and protrude on a common side of the longitudinal reinforcement 3, is chosen so that it mainly corresponds to the length of a brick 5 or another suitable brick which is used in the construction of a masonry beam 2 by a method according to the invention.

En rekke fortrinnsvis U-formige forbindingsnåleelementer 6 er fast og/eller løsbart forbundet med den langsgående armering 3, som vist i form av et eksempel på Fig. 3. A number of preferably U-shaped dressing needle elements 6 are fixedly and/or releasably connected to the longitudinal reinforcement 3, as shown in the form of an example in Fig. 3.

Den måte som en armert murverksbjelke 2 eller en lignende fremstilles på ifølge den foreliggende oppfinnelse, er som følger. Ved hjelp av enkelte Stener 5 og mellomliggende murbruk 7 eller annen fugemasse som påføres ved stenenes kort-ender 5A,blir først et "underste" murskift 2 som f.eks. strekker seg over en vindusåpning 8, fremstilt. På dette "underste" murskift 2 legges en armeringsanardning 1 ut slik at den langsgående armering 3 hviler på oversiden 5 B av stenene 5. I de nevnte dannede støtfuger 7, som ennu ikke har størknet, for murskiftet 2 blir de nevnte forbindingsnåleelementer 6 stukket ned slik at det oppnås et samarbeide mellom anordningen 1 og det nevnte murskift 2 når mur-bruket 7 har størknet. The way in which a reinforced masonry beam 2 or a similar one is produced according to the present invention is as follows. With the help of individual Stones 5 and intermediate masonry 7 or other joint compound which is applied at the short ends 5A of the stones, first a "lower" masonry shift 2 becomes, e.g. extends over a window opening 8, shown. On this "lower" masonry shift 2, a reinforcement arrangement 1 is laid out so that the longitudinal reinforcement 3 rests on the upper side 5 B of the stones 5. In the aforementioned formed butt joints 7, which have not yet solidified, for the masonry shift 2, the aforementioned dressing needle elements 6 are inserted so that a cooperation is achieved between the device 1 and the aforementioned masonry shift 2 when the masonry 7 has solidified.

I mellomrommene 9 som i sideretning og nedad er be-grenset av tverrarmeringen 4 og den langsgående armering 3, anbringes murstener 5 som fuges sammen med det nevnte murskift 2 ved hjelp av en liggefuge 10 dannet av murbruk etc, og sammenfuges innbyrdes ved hjelp av støt-fuger 7 under dannelse av et øvre murskift 11. Armeringen 1 blir derved innleiret i de nevnte fuger 7, 10 uten at sprekkdannelse oppstår ved disse når den fremstilte bjelke In the spaces 9, which are limited laterally and downwards by the transverse reinforcement 4 and the longitudinal reinforcement 3, bricks 5 are placed, which are jointed together with the aforementioned brick replacement 2 by means of a lying joint 10 formed by masonry etc., and are joined together by means of impact -joints 7 during the formation of an upper masonry shift 11. The reinforcement 1 is thereby embedded in the aforementioned joints 7, 10 without cracking occurring at these when the manufactured beam

12 belastes. 12 is charged.

Det er også mulig å stikke tverrarmeringen 4 ned oveni-fra og ned i støtfugens bruk 7. It is also possible to stick the transverse reinforcement 4 down from above and down into the use of the butt joint 7.

Ved hjelp av oppfinnelsen oppnås en rekke vesentlige fordeler ved at armert murverk kan fremstilles slik at mur-blokkene holdes sammen i to retninger. Det kan nu derfor fremstilles murverksbjelker som virker på lignende måte som betongbjeiker, ved at den trinnlignende armeringsanordning 1 danner såvel en langsgående armering som støtfugearmering, dvs. en vertikal og horisontal armering. With the help of the invention, a number of significant advantages are achieved by the fact that reinforced masonry can be produced so that the masonry blocks are held together in two directions. It is now therefore possible to produce masonry beams which act in a similar way to concrete beams, in that the step-like reinforcement device 1 forms both longitudinal reinforcement and butt joint reinforcement, i.e. vertical and horizontal reinforcement.

Claims

1. Procedure for providing a reinforced masonry beam (12) etc. by embedding longitudinal reinforcement (3) in the lay-up joint (10) at brick replacement, characterized by the fact that for the reinforcement both longitudinal wire-like reinforcement (3) is used, which is built into the laying joint (10) at brick joints (2, 11) laid into the grout, and transverse, wire-like reinforcement (4, 6) which protrudes from the longitudinal, wire-shaped reinforcement (3) plane and which is used for reinforcement laid into the joint compound in the butt joints (7) of the masonry replacement (2, 11).

2. Method according to claim 1, characterized in that a reinforcement device is used where the transverse wire-like reinforcement (4) is connected (4A, 4B) with each longitudinal wire-like reinforcement (3) and protrudes from this in the height direction.

3. Method according to claim 1 or 2, characterized in that a reinforcement (1) consisting of a longitudinal reinforcement element (3) is laid out on a masonry shift (2) from which several transverse reinforcement elements (4) protrude which are distributed along the said longitudinal reinforcement element (3) at a mutual distance (L) from each other, seen from the side on which they protrude, which mainly corresponds to the length of a brick (5) or a corresponding brick, so that the stones (5) at masonry of the next masonry shift (11) is placed in the rooms (9) which are bounded from three sides by the longitudinal and transverse reinforcement elements (3 and 4 respectively).

4. Method according to claim 1, characterized in that the longitudinal tensile reinforcement (3) is placed on a completed masonry shift (2) so that the longitudinal reinforcement (3) will come at a distance from the underlying masonry shift (2), and that the transverse reinforcement ( 4, 6) is lowered into or allowed to be enclosed by the joint compound at the appropriate associated butt joint (7).

5. Method according to claims 1-4, characterized in that the reinforcement' (1) is influenced to cooperate with dressing needle elements (6) or the like which can be received in butt joints (7) and are loose or connected to the reinforcement (1).

6. Device for carrying out a method for providing a reinforced masonry beam (12) etc. by embedding longitudinal reinforcement (3) in the lay-up joint (10) of a brick replacement, according to claims 1-5, characterized in that a reinforcement is formed by a separate piece (1) which consists of a longitudinal wire-shaped reinforcement element (3) from which several transverse wire-shaped reinforcement elements (4, 6) protrude in the vertical direction.

7. Device according to claim 6, characterized in that the transverse elements (4, 6) are distributed along the longitudinal element (3) with a mutual distance (L) which corresponds to the length of a brick (5) or another brick used.

8. Device according to claim 7, characterized in that the reinforcement consists of rods (3) which extend in the longitudinal direction, with transverse threads (4, 6) connecting the rods (3) to each other.

9. Device according to claim 8, characterized in that transverse rods (4) are each connected to a longitudinal rod (3) at the transverse rod's respective free end (4A, 4B) and extend perpendicularly from the longitudinal rods (3) in that the transverse rods (4) are bent or otherwise shaped so that they extend at an angle between the two longitudinal longitudinal reinforcing bars (3).

10. Device according to claim 9, characterized in that U-shaped dressing needle elements (6) are firmly connected to the longitudinal reinforcement bars (3) or are releasably connectable with them.

11. Device according to claims 6-10, characterized in that the reinforcement (1) consists of hot-dip galvanized material or of stainless steel material. IN