Column hung shoring bracket and slab support truss system

Abstract

A column mounted shoring bracket has a support sub-assembly attached to a column or other supporting surface, a jack sub-assembly attached to the support and a head sub-assembly attached to a part of the jack that varies in height relative to the support. The head has a head base that supports one or more rollers for moving a form. The head also has a supporting plate for supporting the form. The supporting plate is connected to the head base so that it may be slid upwards and fixed in a position where the top of the supporting plate is above the top of the rollers, for example to carry the weight of a slab being built, or slid downwards so that the top of the supporting plate is below the top of the rollers which do not have to carry the weight of the slab being built. The angular position of the rollers may be aligned with an external reference such as the side of a column, a wall, or a jig. The bracket is adapted for use with parts of forms that may be made or assembled in or adjusted between a set of widths within a range that differ from each other by a selected increment. The forms include structures for spanning between shoring brackets or other supports that can be pre-cambered so as to have acceptable deflection when loaded.

Description

[0001] This application is a division of U.S. Ser. No. 10 / 660,528, filed Sep. 12, 2003, which claims the benefit under 35 USC 119(e) of U.S. provisional application No. 60 / 444,180 filed Feb. 3, 2003 and claims the benefit under 35 USC 119(e) of U.S. provisional application No. 60 / 443,553 filed Jan. 30, 2003. This application also claims, through U.S. Ser. No. 10 / 660,528, priority from Canadian patent application number 2,403,074 filed Sep. 13, 2002. The entirety of all of the documents mentioned above is hereby incorporated into this document by this reference to them.FIELD OF THE INVENTION [0002] This invention relates to systems of brackets hung (i.e. mounted) on columns or walls for shoring or slab support and to components, for example trusses, used to span between such brackets, used as part of shoring systems, for example those commonly known as column hung systems or column hung slab support and shoring systems. BACKGROUND OF THE INVENTION [0003] Column hung shoring systems t...

AI Technical Summary

Benefits of technology

The system enables efficient and quick installation of shoring brackets on columns or walls, allows for easy transfer of forms between rollers, and provides adjustable and pre-cambered trusses to minimize deflection, enhancing construction efficiency and accessibility.

Problems solved by technology

For example, prior art shoring brackets are heavy or awkward which makes them difficult to install or strip.

The rollers of prior art shoring brackets are also difficult to align with the rollers of other shoring brackets or with the direction in which a pre-made form will be rolled onto or off of the brackets.

As a result, their rollers often bind and work against each other.

Prior art shoring brackets are also not well integrated into shoring systems and require excess amounts of custom installation work, particularly in relation to the shoring structures placed between the brackets.

Further, the structures erected between brackets in prior art column or wall mounted shoring systems often deflect excessively when spanning large distances (for example 20′ or more).

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