SE436772B

SE436772B - Procedure used in basic reinforcement of existing constructional work and a device for executing the procedure

Info

Publication number: SE436772B
Application number: SE8006375A
Authority: SE
Inventors: Edvin Lindell
Original assignee: Edvin Lindell
Priority date: 1980-09-11
Filing date: 1980-09-11
Publication date: 1985-01-21
Also published as: SE436772C; SE8006375L

Abstract

A procedure for basic reinforcement of existing constructional work, where piles (1) are placed adjacent to the building, after which the load is transferred from the building to the piles (1).The procedure is especially characterised by the fact that a pair (1,1) of opposite piles (1) are placed adjacent to an existing wall (2) and that obliquely located holes (3) are drilled in the wall (2) adjacent to the aforementioned pair. A steel rod (4) is inserted and injected securely into each hole (3) and that the rods are joined to the top (7) of each individual pile (1).Another characteristic is that a hole (5) is drilled between the top of the piles (7). A steel rod (8) is inserted and injected securely into this hole and anchored in the top of the piles (7), whereupon horizontal forces that affect the piles via the obliquely positioned rods (4) are absorbed by the rod (8) and where the load from the wall can be inserted centrally in the piles (1).The invention also concerns a device for implementing the procedure.<IMAGE>

Description

6006375-3 sontella krafter, av vilka pålarna påverkas via de snedställda stängerna upptages av stången och varigenom belastningen från väggen kan införas centriskt i pålarna. 6006375-3 solar forces, of which the piles are actuated via the inclined rods are absorbed by the rod and whereby the load from the wall can be introduced centrally in the piles.

Nedan beskrivs uppfinningen närmare i anslutning till ett par utförings~ former samt bifogade ritning, där - fig. 1 visar ett vertikalt snitt genom en vägg med en första utförings- form av en anordning enl. uppfinningen samt - fig. 2 på motsvarande sätt visar en del av en andra utföringsform av en anordning enl. uppfinningen.The invention is described in more detail below in connection with a pair of embodiments and the accompanying drawing, in which - Fig. 1 shows a vertical section through a wall with a first embodiment of a device according to the invention and - Fig. 2 correspondingly shows a part of a second embodiment of a device according to the invention.

Enl. uppfinningen förefinns par 1,1 av varandra motstående pålar 1 anord- nade i anslutning till väggen 2 hos byggnaden, d.v.s. mitt emot varandra på båda sidor om väggen.According to. According to the invention, there are pairs 1,1 of opposite piles 1 arranged in connection with the wall 2 of the building, i.e. opposite each other on both sides of the wall.

I väggen 2 i anslutning till nämnda par 1,1 förefinns snedställda hål 3 borrade antingen snett nedåt, såsom i fig. 1 eller snett uppåt i riktning från pålarnas 1 topp 7. l varje hål 3 förefinns en stålstång '-1 införd och fastinjekterad, vilka stänger Ä är förbundna med var sin påles 1 topp 7, varvid förankring i påltoppen 7 sker med en stålplatta, balk eller liknan- de.In the wall 2 in connection with said pair 1,1 there are inclined holes 3 drilled either obliquely downwards, as in Fig. 1 or obliquely upwards in the direction from the top 7 of the piles 1. In each hole 3 there is a steel rod -1 inserted and fixedly injected, which rods Ä are connected to the top 7 of each pile 1, whereby anchoring in the pile top 7 takes place with a steel plate, beam or the like.

Mellan pålarnas 1,1 topp 7 förefinns ett hål 5 borrat genom väggen 2, i vilket en stålstång 8 förefinns införd och fastinjekterad, vilken är för- ankrad i pålarnas topp 7. 1 fig. 2 visas en utföringsform, där stängerna Å är försedda med en för- ankringsplatta 6 i stängernas nedre ände.Between the top 7 of the piles 1,1 there is a hole 5 drilled through the wall 2, in which a steel rod 8 is inserted and fixedly injected, which is anchored in the top 7 of the piles. Fig. 2 shows an embodiment in which the rods Å are provided with an anchoring plate 6 in the lower end of the rods.

Funktionen hos anordningen enl. uppfinningen samt förfarandet torde till väsentlig del framgått ovan. Belastningen från byggnaden överförs således till pålarna 1 medelst stängerna Å,8. De horisontella krafter, av vilka pålarna påverkas via de snedställda stängerna Å upptages av stången 8, varigenom belastningen Q från väggen 2 kan införas centriskt i pålarna 1.The function of the device according to the invention and the method should be substantially stated above. The load from the building is thus transferred to the piles 1 by means of the bars Å, 8. The horizontal forces, of which the piles are actuated via the inclined rods Å, are absorbed by the rod 8, whereby the load Q from the wall 2 can be introduced centrally in the piles 1.

Härvid är stängerna förankrade i pålarnas topp 7 så att detta möjliggörs.In this case, the rods are anchored in the top 7 of the piles so that this is possible.

Genom att spänna stålstängerna med domkrafter kan belastningen från bygg- naden påföras pålarna utan att sättningar hos byggnaden behöver ske. Ge- nom sådan förspänning kan även provbelastning av pålarna ske. &0O6375 -3 Ovan har ett par utföringsformer av uppfinningen beskrivits. Naturligtvis kan fler utföringsformer och mindre förändringar tänkas utan att uppfin- ningstanken därför frångås. Enl. de här visade utföringsformerna korsar således stängerna Å varandra i väggen 2. Vidare är enl. vad som här visas vinklarna C§(1,(§(2, som utbildas mellan stången 8 och resp. snedställd stång Ä olika. Vidare är enl. utföringsexemplet stången 8 ej horisontell, d.v.s. påltopparna 7 ligger på olika nivå.By tensioning the steel bars with jacks, the load from the building can be applied to the piles without settling of the building. Through such bias, test loads of the piles can also take place. A couple of embodiments of the invention have been described above. Of course, more embodiments and minor changes are conceivable without departing from the inventive concept. According to. the embodiments shown here thus cross the rods Å each other in the wall 2. Furthermore, acc. what is shown here are the angles C§ (1, (§ (2), which are formed between the rod 8 and the respective inclined rod Ä are different. Furthermore, according to the exemplary embodiment, the rod 8 is not horizontal, i.e. the pile tops 7 are at different levels.

Uppfinningen skall ej anses begränsad till ovan angivna utföringsformer, utan kan varieras inom dess av bifogade patentkrav angivna ram.The invention is not to be construed as limited to the embodiments set forth above, but may be varied within the scope of the appended claims.

Claims

8006375-3 H Patent Claims

Procedure for ground reinforcement of existing structures, where piles are arranged adjacent to the building, after which load is transferred from the building to the piles, characterized in that pairs (1,1) of opposite piles (1) are arranged adjacent to a existing wall (2) and by drilling oblique holes (3) in the wall (2) adjacent to said pair, where a steel rod (#) is inserted and injected firmly into each hole and by connecting the rods (Ä) with the top (7) of each pile (1), and by drilling a hole (5) between the tops (1) of the piles (1,1), in which a steel bar (8) is inserted and injected firmly and anchored in the piles ( 1.1) top (7), wherein horizontal forces, of which the piles (1) are actuated via the inclined rods (Ä), are absorbed by the rod (8) and wherein the load (Q) from the wall (2) can be introduced centrally in on - larna (1).

2. Procedure acc. claim 1, characterized in that the angles (C> (], () (2), which are formed between the rod (8) running between the pile tops (T) and the respective inclined rod (Li) are different.

3. Procedure acc. claim 1 or 2, characterized in that the inclined rods (Å) are prestressed so that the load (Q) from the wall can be applied to the piles without risk of settling. Ä.

4. Procedure according to claim 1, 2 or 3, wherein said inclined holes are drilled obliquely downwards in the wall, characterized in that the inclined rods (4) are provided with a standing plate (6), which is anchored in the lower part of the rods (Ä). End.

5. Device for basic reinforcement of existing structures, where piles are arranged in connection with the building, to which load from the building is intended to be transferred, characterized in that pairs (1,1) of opposite piles (1) are arranged in connection with a wall (2) of the building and in that oblique holes (3) are drilled in the wall (2) in connection with said pair, where a steel bar (Å) is inserted and fixedly injected in each hole (3) , which rods (4) are connected to the top (7) of each pile (1) and to the fact that between the top (7) of the piles (1,1) there is a hole (5) drilled, in which a steel rod (8) ) is inserted and fixedly injected, which is anchored in the top (7) of the piles (1,1), whereby horizontal forces, of which the piles (1,1) are actuated via the inclined rods (Ä) are absorbed by the rod (8) 8006375 -3 and whereby the load (Q) from the wall (2) can be introduced centrally in the piles (I).

6. Device according to claim 5, characterized in that the angles (CK1, CX2) which are formed between the rod (8) running between the pile tops (7) and resp. oblique bar (Å), are different.

7. Device according to claim 5 or 6, wherein said inclined holes are drilled obliquely downwards in the wall, characterized in that the inclined rods (H) are provided with a steel plate (6), which is anchored in the lower part of the rods (H). End.

8. Device according to claim 5, 6 or 7, characterized in that the inclined rods (H) cross each other in the wall (2).