Working Stress Method v/s Limit State Method

Working stress method and Limit state method

1. MachenLink
RCC
Limit State Method
v/s
Working Stress
Method
Booster

2. MachenLink
Working Stress Method Limit State Method
✓WSM is an elastic design method.
✓The stress in material is allowed to go beyond the
yield limit and enter into the plastic zone to reach
ultimate strength.
✓LSM is strainbased method.
✓WSM is deterministic approach.
✓Inthisdesignmethod,membersaredesignedto
nevergobeyondtheirelasticrange.
✓LSM is a plastic design method.
✓WSM is stressbased method.
✓LSM is non-deterministic method.
✓Factor safety is used find the allowable stress.
✓Partial Safety factors are used for Design
WSM Vs LSM