![]() To relieve the wall of the floor and roof loads, they are independently supported using 100 x 100 mm ceiling struts at 2 m centres. The shore legs stand away from both sides of the wall, usually allowing for a minimum of 1 m working space in between. The floor and ceiling finishes are removed locally around the shore legs. The shore legs are taken down to a solid bed and secured on a 300 x 300 mm sleeper with folding wedges. Needles are made of either timber or steel. These are usually placed at 1.2-1.8 m centres, and are supported by 300 x 300 mm vertical props known as shore legs at either end on both sides of the wall, with diagonal bracing as required. An arrangement of beams and posts support the structural weight and transfer it to the firm ground foundation below.Įxample: When opening a wall, holes are cut so as to allow 300 x 300 mm beams, known as needles, to be inserted to carry the weight. This is often required when an opening is being made in a wall, or a defective loadbearing wall is being rebuilt. 200 x 100 timbers used for grillage or platform to properly embed the sole plateĭead shores are primarily used to carry vertical loadings from walls, roofs and floors.250 x 250 mm rider raker (the size is decided based on anticipated thrust from the wall).250 x 75 mm wall plate secured with wall hooks, cleats and needles.Typical materials that are used include timber, structural steel, and framed tubular scaffolding. They tend to be inclined at between 40-75º. Raking shores involve inclined members, or rakers, typically placed at 3-4.5 m centres, and braced at regular intervals. There are three basic types of shoring system that can be used separately or in combination depending on the nature of the support required. When openings in a wall are made or enlarged.When an adjacent structure is to be pulled down.To walls undergoing repair or reinforcement.Shoring is often used to provide lateral support: Shoring is the technique of using a temporary support, usually a form of prop, to make a structure stable and safe. 5 Related articles on Designing Buildings Wiki. ![]()
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