US 5,174,085 AGranted

Method of adding additional stories to an existing storied building

AssigneeChinese Building Technology Services Corp. Ltd.

InventorJian-heng Lu

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Abstract

A designing and construction process for raising the height of old buildings suitable for use to raise the height of old buildings of 2-6 stories, or of 7-9 stories if necessary. With this method, it is possible to add 5-8 stories to the old building with no need to demolish the old building and to move the residents to other places. Owing to the employment of supporting frame structure, which is independent of and directional pivotally connected to the original building, the weight of the new building is not supported by the old building, and owing to the employment of shock absorbing devices for building and "shock isolator for buildings", the aseismic capacity of the building is greatly enhanced. This method of raising the height of low-storeyed building of the invention solves a number of problems in relation to rebuilding buildings and avoids great waste.

Claims11

Dependent claims

A method for adding stories to raise the height of original low-storied buidlings, comprising the steps

laying a foundation closely around the original building, wherein upon said foundation story-adding supporting frame columns are erected, wherein structure expansion and contraction joints are provided between the original building and said columns, and wherein said joints are filled with compressible material;
rigidly connecting story-adding frame supporting girders with said frame columns above the roof of the original building so that the weight of said story-adding structure is to be supported by said girders and said frame columns to be transmitted to the ground base, wherein a clearance is provided between a bottom surface of said girders and a top surface of the original building, wherein the clearance should be bigger than an amount of sinking of said story-adding structure;
connecting said frame columns at a floor place of every story of the original building to the columns of the original building by means of a plurality of connectors, wherein one end of each frame column is fixed, while an end of the column at the original building has a vertically movable hinge, wherein sideways moving is not permitted;
providing an anti-sliding plate for ground base soil close to an outer side of said foundation of said story-adding supporting frame columns and below the bottom of said foundation;
and
providing a partition made of hard and thin material between the foundation of the original building and said foundation of said supporting frame columns.

3 more elements

Dependencies are inferred from the claim text.