A concrete structure consists of 14 columns to support an elevated floor slab. The columns are 18
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Question:
A concrete structure consists of 14 columns to support an elevated floor slab. The columns are 18 inches square and 10 feet high. Assume there will be no reuse of column forms. Estimate the total cost and cost per SFCA for building, erecting and removing the formwork for these columns. Refer tables to find out quantities of materials and labor hours required for these columns. Use average values in the table for estimating purpose.
Plywood of 4 x 8 ft will be used. The application rate of form oil is 400 SFCA per gallon. All the columns will be erected simultaneously. The clamps will be rented.
The following cost information applies: (15 points)
- Plywood sheet (4 x 8 ft): $35.00 per sheet
- Lumber: $0.70 per bf
- Clamp: $4.00 per clamp for renting
- Form Oil: $8.50 per gallon
- Carpenters: $25.00 per hour
- Laborer: $17.00 per hour
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