Development and advance in story-adding and upgrading for existing building structures home and abroad

The development status of story-adding in our country is briefly introduced.

Connecting existing masonry structure with frame by short beams is a commonly used story-adding plan in practice.

Study on the technology of adding story on frame structure;

Associated with the project of adding storey on concrete frame buildings, this paper introduced the connection between old and new construction and the configuration of column base joint of lightweight steel adding story and some key techniques during construction of storey-increasing.

To facilitate the seismic performance of adding structure and guarantee the interality of structure, the connection between adding structure and original structure (column base joint) is the key to the project of adding story.

Taking the lab building of Jiujiang Vocational & Technical College as an example,the paper introduces briefly the storey-adding on the original building in the form of overcoat frame,which breaks through the traditional method of storey-adding and meets the need of construction function.

The paper,with the help of the analyzing software of ANSYS finite element,analyzes the storey adding of light-weight portal steel structures to six-storey buildings,which exceeds the limitation of height and standards and proves the feasibility of storey-adding to structures of super-elevation.

Countermeasures of foundation in adding stories of multi-stories building;

Some technical problems in adding stories design of a middle school mess hall;

Seismic analysis of a multi-storey RC frame with adding-storey and lead laminated rubber bearings

A new adding-storey structural system named double-column and vierendeel truss structure is proposed to overcome the shortcomings of ordinary separated masonry-in-frame system, i.