Concrete, Masonry, and Formwork Safety Flashcards

Before an employer places construction loads on a concrete structure, who must determine the structure can support them?

Answer: A qualified person, based on information received

1926.701(a) prohibits construction loads unless the employer determines, based on information from a qualified person, that the structure can support them.

When must erected shoring be inspected according to 1926.703?

Answer: Immediately before, during, and immediately after concrete placement

Erected shoring must be inspected immediately prior to, during, and immediately after concrete placement.

What does OSHA say about adjusting shoring screws after concrete has been placed?

Answer: They must not be adjusted to raise formwork after placement

Adjustment screws shall not be adjusted to raise formwork after the concrete is in place, as this can overload or collapse the form.

How must formwork removal timing be determined under 1926.703(e)?

Answer: When concrete has gained sufficient strength per plans/specifications or appropriate ASTM tests

Forms and shores may not be removed until the concrete has gained sufficient strength, as shown by plans/specifications or ASTM test methods.

What must be kept at the jobsite for formwork, including shoring equipment?

Answer: Drawings or plans, including all revisions

Drawings or plans, including all revisions, for jack layout, formwork, shoring, working decks, and scaffolds must be available at the jobsite.

Eccentric loads on shore heads are permitted only when what condition is met?

Answer: The shoring has been designed for such loading

Eccentric loads on shore heads and similar members are prohibited unless the shoring was designed for such loading.

When is reshoring required after stripping forms?

Answer: When necessary to safely support slabs and beams after stripping or when subjected to superimposed loads

Reshoring must be provided when necessary to safely support slabs and beams after stripping or under superimposed loads.