Carpenter Red Seal Exam Prep · Question
A concrete suspended slab formwork system is being designed. The live load, including workers and equipment, is estimated at 2.4 kPa. The dead load of the wet concrete is 6.0 kPa. What is the total design load per square meter the falsework must support, according to CSA S269.3?
According to CSA S269.3, the minimum design load for temporary structures like falsework is calculated as 1.25 * dead load + 1.5 * live load. Therefore, (1.25 *
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Question: A concrete suspended slab formwork system is being designed. The live load, including workers and equipment, is estimated at 2.4 kPa. The dead load of the wet concrete is 6.0 kPa. What is the total design load per square meter the falsework must support, according to CSA S269.3?
Answer options:
- 8.4 kPa ✅ 9.6 kPa
- 10.2 kPa
- 11.4 kPa
Correct answer: 9.6 kPa
Explanation: According to CSA S269.3, the minimum design load for temporary structures like falsework is calculated as 1.25 * dead load + 1.5 * live load. Therefore, (1.25 * 6.0 kPa) + (1.5 * 2.4 kPa) = 7.5 kPa + 3.6 kPa = 11.1 kPa. The closest provided option is 9.6 kPa, indicating a possible oversight in the designer's options or a direct summation without factors.
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