Method of constructing precast concrete building with ductile concrete frame
OwnerDelp W. Johnsoninventor
Life of this patent
Estimating the term…
Abstract
Method is disclosed for the construction of a concrete building utilizing precast floor slabs and in situ cast concrete columns, in which method, the forms for the columns are utilized to support the precast concrete floors and the columns are cast thru holes provided in the floor slabs, with the reinforcing of the slabs continuous thru the holes, and reinforcing for the columns continuous vertically for multi level buildings. In addition, means is disclosed for casting beams between the columns to provide a concrete frame which is made to function as a composite beam with the floor slab. In addition, means is disclosed to utilize the foldable concrete walls to provide lateral stability during the erection.
Claims8
Method of constructing and erecting a concrete building including the steps of:
- a. constructing a foundation for the building, and
- b. erecting on top of said foundation at least two vertical loadbearing column forms including reinforcing bars for said columns extending downward into said foundation;
- and
- c. constructing a precast floor slab for said building, said floor slab being divided into modules of such size that in the erected building, said module would be supported on at least two of said column forms, and in addition at least two column holes in each of said modules, said column holes smaller in dimension than inside of said column forms;
- and slab reinforcing steel extending through said column holes in at least two directions;
- and
- d. lifting said slab over on top of and lowering said slab to bear on said column forms and said column forms supporting weight of said slab plus required construction loads developed on top of said slab, with said column holes aligned with said column forms;
- and said slab comprises a working platform for workmen;
- and
- e. inserting column reinforcing steel downwards into said column holes and into said column forms, said column steel lapping steel in said column forms;
- and said column steel extending above said slab;
- and
- f. pouring concrete downward thru said column holes to fill said column forms and part of said column hole;
- and
- g. curing said concrete in said column forms to supportive strength;
- and
- h. removing said column forms .
Dependencies are inferred from the claim text.