FI122569B - A method of raising a building - Google Patents

Abstract

A method of adding extra floors on a building, whereby the floors, which are to be raised, are formed by lifting up the mantle, the partition wall (9) and the midsole elements (6) and mounting them in place. At least a part of the raising part bearing-frame is made to run from the ground off the earth footing, whereby several load-bearing structures running vertical from the said earth footing, are placed outside the building, and which in the initial phase of the method the said bearing structures are extended to the final height of the building, and whereby at least said structures (2) on the opposite sides are interlocked and that in the method bearing-force from said load bearing structures (2) is arranged to at least some structures of the extra floors forming structures (6;9).

Description

The present invention relates to a method of raising a building while maintaining the exterior dimensions, wherein the roof of the building to be raised is either a pre-existing free floor, such as a flat roof, or is provided as a free top floor, or otherwise a flat starting floor for raising floors. is formed by lifting and installing the jacket, partition and midsole elements.

Known methods of building extensions include prior art. U.S. Pat.

5,174,085 is a method whereby additional floors are laid on an exterior foundation on which additional floors are built. The foundation leaves several vertical pillars at the height of the original building and they are connected to each other by several horizontal beams located at the lower floors. The additional layers can also be distinguished in terms of shocks and vibrations from the original building.

The disadvantage of this method is that the original building is lined with a plethora of both vertical columns and horizontal beams, which are still a distance from the building wall. The additional layers are made in the same way as a conventional apartment building, except that the base of each additional layer has to be made of reinforced concrete slab of considerable thickness, since there is no structure in the middle of the building that would support from below.

A similar method is known from Japanese publication JP 4047073, with additional layers being fully supported by columns outside the building. For each additional floor, there are sturdy beams connecting the external pillars through the building on which each additional floor is built.

A disadvantage of the methods described above is a significant reduction in the appearance of the building, 3 and additional building such as that described may not necessarily be generally accepted by the occupants of the original building. Heavy horizontal beams across the building need to be installed to support additional floors. These interfere with apartment design and potentially add unnecessary floor heights. | ϊ 2

In order to eliminate the drawbacks described above and to provide, surprisingly, a new method of improving the demolition of a building, a new invention has been made, characterized in that at least part of the supporting frame of the riser is made from the ground ;; out of the building, wherein a plurality of vertical load-bearing structures exiting said ground are extended to the final height of the building in a first step of the method and wherein said at least opposing sides of the building are joined to each other and the method

In the following, the invention will be explained in more detail with reference to the accompanying drawing, in which

Figure 1 shows an apartment building on which additional floors will be built. ,;

Fig. 1 shows an original apartment block with low elevation elements 7 at the top which form the edges of the flat roof structure in the original building. The original building may also have had a pitched roof, in which case it must be demolished. If it has a flat roof or the like, it is easier to start building additional floors. The method of the invention first involves making additional foundations outside the building at a number of predetermined locations for vertical bearing columns. In Figure 1, these foundations are located at each projection 1 outside the building. The protrusions 1 are constructed as possibly curtained pillars in harmony with the exterior surface of the building, which are also bound to the original wall structure, preferably at the seam between the elements. The columns> are a reinforced concrete structure or a steel lattice structure.

In the method, the pillars 1, 2 are extended to the final height of the raised building. $

A particularly good solution is to connect the pillars 2 at their upper ends with a structure 3 which is already a roof lattice of the roof of a new building. Figure 1 illustrates such a solution.

The pillars 2 mainly support additional layers. If there are no shallow elements 7 in the upper part of the original building, it is advantageous to form such, for example ;; - Ί as a raised part as part of the sheath element to be first installed to create a low 1 attic space.

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The additional layers are constructed by means of a crane which lifts the midsole elements 6 and the wall elements 9 in the normal way. Robust cross members according to known solutions are not required in this method. Between the pillars 2, steel profiles 5 or the like, which have the same height as the midsole element 6, are mounted.

The profiles 5 are secured to the pillars 2 at their ends and further supported by a pulling member 4 j from the top connecting structure 3 to the columns 2. The pulling members 4 may also be oriented obliquely from the structures 2 or structure 3 to the horizontal beam 5. The intermediate base elements 6 are At the same time, at least some of the wall elements are also supported by the intermediate floor elements 6. In Fig. 1, there are no pillars 1 and 2 shown at the end of the building. In the case of Fig. 1, the end is lifted, for example, by removing the raised part 7 and starting from the old load-bearing end wall with new wall elements, the support of which is fitted to the other ends of the intermediate and upper floors of all layers.

After each additional layer, horizontal profiles 5 are mounted to support the next layer.

There is usually no elevator in the building to be raised, but of course a stairway. In the building of Fig. 1, the stairwell has been at the shaft 10 where it has been removed. £ In practice, it will only be removed when the elevator and the new stairway are built into the added section 11 outside the building. This section will be added to the previous entrance and stairway. The potential old elevator shaft and stairway 10 will preferably remain a vertical shaft, allowing easy passage of compliant ducts, piping and cabling to the old part of the house, either downstairs or down from the roof of a new part e.g. A particularly good solution is that the new insert receives a gap leading upwards to the roof along the same line as the shaft 10.

An increase in the building does not necessarily require a change of staircase. Of course the old staircase his and the elevator can only be raised.

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With the horizontal low attic space between the add-on and the old part, flues located on the roof of the old, '' yleensä part can generally be placed in very shallow, · ii space along the vertical shaft 10 and further to the roof for heat recovery; k 4> neelle. Similarly, ventilation ducts can be led from the shaft 10 to each apartment on each floor by a very short horizontal draft through the wall.

While the roof of an old building is a watertight flat roof, it is advantageous to keep it waterproof with its roof wells, thus remaining a flood protection for lower apartments in the event of water damage to the upper part of the building.

The invention is not limited to the following embodiment, but can be modified in many ways.

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Claims (9)

1. A method of raising a building, while maintaining substantially the exterior dimensions, wherein the roof of the building to be raised is either a finished free floor, such as a flat ceiling, or provided as a free top or otherwise a smooth starting surface, eg by disassembling ) and intermediate floor elements (6) up and installing whereby at least a portion of the carrier frame of the riser is raised from the ground to a plurality of vertical load-bearing structures (1, 2) exiting said ground, characterized in that 1, 2) extending to the final height of the building, whereby said structures (2) located at least on opposite sides of the building are connected to each other and in the method (9) guiding a bearing force from both said load-bearing structures (2) and forming a portion of the bearing force by combining the load-bearing structures (2) from the top with a supporting structure such as a truss (3) and a traction force (4); ) with the structures (6); (9) at least partially supporting the horizontal beams (5). Method according to claim 1, characterized in that a plurality of horizontal beams (5) supporting the floor intermediate floors (6) and the elements (9) are placed at each layer. A method according to claim 1, characterized in that a small portion is left between the inserted and the original portion, i.e. between their top and bottom bottoms, for horizontal displacement of ducts, pipelines and cabling. Method according to Claim 1, characterized in that the elevator is dismantled from the section of the original building and the stairwell and the released shaft (10) are turned into a vertical shovel for ducts, pipelines and cabling. Method according to Claim 1, characterized in that the stairwell is demolished from a portion of the original building and at least part of the stairwell is converted into a vertical vertical duct, piping and cabling. Method according to claim 1, characterized in that a new space (11) is built outside the building for the elevator and / or stairway. Method according to Claim 1, characterized in that the load-bearing vertical structures (1); (2) are used at least partially with lattice structures and support horizontal beams (5) which are mounted at different layers to connect the structures (2) to each other. Method according to Claim 1, characterized in that the load-bearing structures are used as vertical structures (1); (2) and by means of pulling means (4), additional horizontal beams (5) are mounted which are mounted on different layers to connect the structures (2). Method according to Claim 1, characterized in that the structure (3) connecting the structures (2) at their upper ends is arranged to act as the roof lattice of the roof to be built. 7