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Q: Which of the following methods aims for a comprehensive and rational solution to the design of reinforced cement concrete structure by considering safety at ultimate loads and serviceability at working loads
  • A. Limit state method
  • B. Working stress method
  • C. Direct design method
  • D. Ultimate load method
Correct Answer: Option A - Limit state method aims for a compressive and rational solution to the design of reinforced cement concrete structure by considering safety at ultimate loads and serviceability at working load. ⇒ The stress are obtained from design loads and compared with design strength. ⇒ The ultimate stresses of materials itself are used as allowable stress. ⇒ In this method, it follows linear strain relationship but not linear stresses relationship. ⇒ The material capabilities are not under estimated as such as they are in working stress method partially safety factors are used in LSM.
A. Limit state method aims for a compressive and rational solution to the design of reinforced cement concrete structure by considering safety at ultimate loads and serviceability at working load. ⇒ The stress are obtained from design loads and compared with design strength. ⇒ The ultimate stresses of materials itself are used as allowable stress. ⇒ In this method, it follows linear strain relationship but not linear stresses relationship. ⇒ The material capabilities are not under estimated as such as they are in working stress method partially safety factors are used in LSM.

Explanations:

Limit state method aims for a compressive and rational solution to the design of reinforced cement concrete structure by considering safety at ultimate loads and serviceability at working load. ⇒ The stress are obtained from design loads and compared with design strength. ⇒ The ultimate stresses of materials itself are used as allowable stress. ⇒ In this method, it follows linear strain relationship but not linear stresses relationship. ⇒ The material capabilities are not under estimated as such as they are in working stress method partially safety factors are used in LSM.