Building construction system

Details Building construction system Building construction system

1991-07-26

1993-11-23

Woo, Jay H.

Plastic article or earthenware shaping or treating: apparatus

Building forms or construction engineering type mold with...

Including mold charging means

249 20, 264 33, 425 65, E04G 1128, E04G 1300

Patent

active

052638359

DESCRIPTION:

BRIEF SUMMARY
TECHNICAL FIELD

This invention relates to an improved self-climbing system for the incremental construction of walls, and in particular the construction of vertical walls of concrete in the building and construction industry. The invention also relates to the construction of other concrete members in building structures, such as perimeter and band beams, although in its broadest form the invention relates primarily to the construction of vertical concrete elements, such as vertical walls forming the central service core of the building structure and/or the perimeter of the building structure.
More particularly the invention relates to a complete highrise construction system which involves a method and apparatus for the incremental in-situ construction of the vertical concrete elements (perimeter walls and service cores), perimeter and band beams, and to a limited extent the floor slabs, in office towers, highrise condominiums and tall civil structures.


BACKGROUND ART

Existing self-climbing systems, such as those disclosed in Australian Patent No. 490759, and our co-pending Australian Patent Application No. 18541/88, have limitations with regards to the flexibility of the systems.
It is the object of the present invention to provide a system which is self-climbing and after the initial assembly requires no external cranage for lifting from one level to another. The system preferably carries with it all formwork components, safety decks, work platforms and perimeter safety screening, that is, all that is necessary for the safe working of personnel in and about the apparatus at all times to the completion of the structure. Upon building completion the system becomes redundant and is dismantled by external means.
A further object of the invention is to provide a system which is capable of constructing structures of any size, shape or height; and although primarily concern with the construction of vertical walls, can have the versatility to construct the following groups of concrete elements.
(a) Perimeter walls, beams and columns, together with internal columns, beams, shear walls and all central core walls concurrently
(b) Half the relevant building elements cast by the system at one level, and the other half at one level advanced in a construction, conveniently split to suit the geometry and/or construction of the building.
(c) Perimeter walls, beams and columns only.
(d) Perimeter walls, beams and columns together with internal columns and beams and shear walls only. In this case the central core walls could be constructed ahead of the main floor areas by employing a conventional slip or jump form system.
(e) Perimeter walls, beams and columns at one level and the central core walls at an advanced level in a split system.
(f) All central core walls only.
None of the existing self-climbing systems, including those of the patent and patent application referred to previously, can achieve such versatility of operation which are the objectives of the present invention.
Since the introduction of central core climbing systems (slip or jump form systems the subject of the aforementioned Patent and Patent applications), and the introduction of fast cycle table-form systems for horizontal elements such as floor slabs, the construction of the perimeter of a building has been critical to floor to floor cycle times in the construction of multi-storey buildings. This is due largely to site crane dependence, the concentration of elements around the perimeter, and the safety requirements for personnel around the edge of the building in the formation of the perimeter.
The preferred object of the present invention is to speed up the construction of perimeter, and like elements, in the construction of multi-storey buildings.


DISCLOSURE OF THE INVENTION

The present invention envisages a building construction system for progressively forming a plurality of vertical superimposed concrete segments in a building construction, said system comprising a plurality of jacking devices forming support columns and each carrying at

REFERENCES:
patent: 3182374 (1965-05-01), Cook
patent: 3252199 (1966-05-01), Bossner
patent: 3510098 (1970-05-01), Fox
patent: 4016228 (1977-04-01), Schmidt
patent: 4050255 (1977-09-01), Ahlgren
patent: 4108583 (1978-08-01), Ellen

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