A: The specification stipulates that for cast-in-place concrete beams and slabs with a span of not less than 4m, the film faced shuttering plywood should be arched according to the design requirements; when the design does not have specific requirements, the 12mm shuttering ply height of the arch should be 1/1000~3/1000 of the span.
What are the requirements for the arching of cast-in-place concrete beams and slabs when shuttering plywood 18mm building formwork is supported?
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