Friday, March 7, 2014

Shoring Systems - Buildings

Shoring ~ this is a form of temporary support which can be given to existing buildings with the primary function of providing the necessary precautions to avoid damage to any person from collapse of structure as required by the Construction (Health, Safety and Welfare) Regulations 1996.

Shoring Systems ~ there are three basic systems of shoring which can be used separately or in combination with one another to provide the support(s) and these are namely:-

1 . Dead Shoring † used primarily to carry vertical loadings.
2. Raking Shoring † used to support a combination of vertical and horizontal loadings.
3. Flying Shoring † an alternative to raking shoring to give a clear working space at ground level.

Dead Shores ~ these shores should be placed at approximately 2000 c/c and positioned under the piers between the windows, any windows in the vicinity of the shores being strutted to prevent distortion of the openings. A survey should be carried out to establish the location of any underground services so that they can be protected as necessary. The sizes shown in the detail below are typical, actual sizes should be obtained from tables or calculated from first principles. Any suitable structural material such as steel can be substituted for the timber members shown.

Raking Shoring ~ these are placed at 3„000 to 4„500 c/c and can be of single, double, triple or multiple raker format. Suitable materials are timber, structural steel and framed tubular scaffolding.

Flying Shores ~ these are placed at 3„000 to 4„500 c/c and can be of a single or double format. They are designed. Unsymmetrical arrangements are possible providing the basic principles for flying shores are applied.

Unsymmetrical Flying Shores ~ arrangements of flying shores for unsymmetrical situations can be devised if the basic principles for symmetrical shores is applied (see page 156). In some cases the arrangement will consist of a combination of both raking and flying shore principles.

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