【Utilities – Civil Engineering Version】20181105
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The formwork measurement for cup-shaped foundations includes the following () tasks. A: After the base cushion is prepared, small wooden stakes are placed at positions around the foundation pit. Using a plumb line and a plumb bob, the alignment lines for the column bases are marked on the cushion; ink lines are drawn, and red paint is used to make marks, which serve as a guide for setting up the formwork for the column bases and arranging the foundation rebar.B: When setting up the formwork, align the bottom edge of the formwork with the alignment lines on the cushion, and use a plumb bob to check whether the formwork is vertical.
C: The designed elevation of the top surface of the column base is marked on the inner wall of the formwork, serving as a reference for the height at which concrete should be poured.
D: The actual elevation of the top surface of the corbels and the column tops should match the designed elevation.
E: The allowable deviation for the verticality of the column shaft is ±5 mm when the column height is ≤5 m.
Answer: ABC
A: After the base cushion is prepared, small wooden stakes are placed at positions around the foundation pit. Using a plumb line and weight, the alignment lines for the column bases are projected onto the cushion; ink lines are drawn, and marks are made with red paint to serve as a guide for setting up the formwork for the column bases and arranging the foundation rebar. B: When setting up the formwork, align the bottom edge of the formwork with the alignment lines on the cushion, and use a plumb line to check whether the formwork is vertical. C: The designed elevation of the top surface of the column base is marked on the inner wall of the formwork, serving as a reference for the height at which the concrete should be poured