Formwork for Concrete Structures by R.L.Peurifoy and G.D- By EasyEngineering.net

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Guidelines for Safety Requirements for Shoring Concrete Formwork 483
SECTION 6 — SINGLE POST SHORES
Horizontal bracing under
every ledger tied to all
post shores
Diagonal “X” brace at end
of post shore run
Concrete
Joist
Plywood
Stringer
Single post
shore
Sill
Single Post Shore
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6.0 See Section 2, "General Requirements for Shoring".
6.1 When checking erected single post shores with the shoring layout, the spacing between shores in either direction
shall not exceed that shown on the layout, and all clamps, screws, pins and all other components should be in
the closed or engaged position.
6.2 For stability, single post shores shall have adequate bracing provided in both the longitudinal and transverse
directions, and adequate diagonal bracing shall be provided.
6.3 Devices to which the external lateral stability bracing are attached shall be securely fastened to the single post
shores.
6.4 All base plates or shore heads of single post shores shall be in firm contact with the footing sill and form material.
6.5 Eccentric loads on shore heads shall be prohibited, unless the post shore is designed to accommodate such
loads.
6.6 Special precautions shall be taken when formwork is at angles, or sloping, relative to the post shore stringers
(bearers), etc.
6.7 When post shores rest on a sloping surface, they shall be braced to compensate for the lateral.forces involved.
6.8 Adjustment of single post shores to raise formwork shall not be made after concrete is in place.
6.9 Fabricated single post shores.
6.9.1 All working load ratings for fabricated single post shores shall be based on tests conducted
according to a standard test procedure for fabricated single post shores, established by the
Scaffolding, Shoring & Forming Institute, Inc., or its equivalent.
GUIDELINES FOR SAFETY REQUIREMENTS FOR SHORING CONCRETE FORMWORK 13
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