Method of seismic reinforcement of buildings

 

(57) Abstract:

Use: method of seismic reinforcement of buildings. The inventive arrange concrete belts with the two sides of the basement of the building and in two levels and is rigidly attached thereto. The upper belt placed under the basement ceiling. Cut the plinth of the building between the upper and lower zones, rasklinivanie her. Set in the gap elements of seismic isolation and remove the wedges. 1 Il.

The invention relates to the construction and strengthening of existing buildings in seismic areas to the level of modern requirements of seismic stability.

There is a method of amplification of high-rise buildings, including the arrangement of the joint in the lower part of the building and the placement of elements of the seismic isolation (see ed. mon. USSR N 1413227, class E 04 H 9/02, 1988).

The closest technical solution is a method of seismic reinforcement of buildings with a ground part and supported on her basement floor and the device zones (see ed. mon. USSR N 86423, class E 04 H 9/02, 1949).

The disadvantage of this technical solution is that the strengthening of buildings may be made in its construction, neozoa seismic strengthening of existing buildings.

This goal is achieved by the fact that the belt suit of reinforced concrete two sides of the ground part and rigidly fixed to the last two levels, the top of which are placed under the basement ceiling, then cut the ground portion between the upper and lower zones, rasklinivanie her education gap and place in it the elements of seismic isolation with subsequent removal of the wedges.

The drawing shows a fragment of the building.

Method of seismic reinforcement of existing buildings is carried out in the following sequence.

On the ground of part 1 of the building suit concrete belts 2, 3 in two levels. The upper belt 2 is placed under the basement ceiling 4.

Belts 2, 3 are fixed to the ground part 1 anchors 5, the wedges 6, by bolts 7. The lower belt 3 can be attached to elements of the Foundation. Then the basement part 1 of the building is cut between the upper 2 and lower 3 zones, for example, by diamond disc stone cutting machine and rasklinivanie her with the formation of the gap 8.

In the gap 8 install seismic isolation elements 9, for example, sliding bearings 10, the elastic limiting horizontal movement of the dampers 11, hard limiters gorer CLASS="ptx2">

Method of seismic reinforcement of buildings can improve the earthquake resistance of existing buildings without evicting tenants or stop production at the enterprises and thereby significantly reduce the time gain and its value.

Method of seismic reinforcement of buildings with a ground part and supported on her basement ceiling by the device of the belt, wherein the belt perform concrete, place the two sides of the ground part and rigidly fixed to the last two levels, the upper of which come under the basement ceiling, then cut the ground portion between the upper and lower zones, rasklinivanie her education gap and establish in it the elements of seismic isolation with subsequent removal of the wedges.

 

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