What is the difference between "working stress method"
And "limit state method"?
Answer Posted / adam iqbal
In working stress approach, service loads are used in the whole design and the strength of material is not utilized in the full extent. In this method of design, stresses acting on structural members are calculated based on elastic method and they are designed not to exceed certain allowable values. In fact, the whole structure during the lifespan may only experience loading stresses far below the ultimate state and that is the reason why this method is called working stress approach. Under such scenario, the most economical design can hardly be obtained by using working stress approach which is now commonly used in the design of temporary works.
In limit state approach, for each material and load, a partial safety factor is assigned individually depending on the material properties and load properties. Therefore, each element of load and material properties is accurately assessed resulting in a more refined and accurate analysis of the structure. In this connection, the material strength can be utilized to its maximum value during its lifespan and loads can be assessed with reasonable probability of occurrence. Limit state approach is commonly used for the majority of reinforced concrete design because it ensures the utilization of material strength with the lowest construction cost input.
| Is This Answer Correct ? | 9 Yes | 2 No |
Post New Answer View All Answers
what is the construction cost for per cft of multistorryed building in kolkata?
how clculate excavated or backfilling quantity by simpson's rule
what is the weight of 12mm aggregates?
how to calculate freeboard in under ground water tank and technical details
density of crush sand & crush stone or grit powder
What is difference between engineering stress and true stress?
List out some of the software program that can be useful for architect?
Describe a time when you anticipated potential problems and developed Preventive measures
Laying bitumen concrete 40mm thick using 0.1372 cum of 13.2 10mm metal ,0.2387 cum of 10 5mm metal...what did it means please explain me how much cum of 10 mm metal need?
How to design 12*12*14 room having rrc slab ,coloum, beam,foundation?
) Design a gussetted base for a column section consisting of one sc 250 with two cover plates 300 x 25 mm carrying an axial load of 2500 KN. The S.B.C. of soil is 250 KN/m2 and the permissible bearing pressure on concrete is 4000 KN.
undistributed samples are obtained by
WHAT GOAL DO YOU HAVE IN YOUR CARRIER?
Define What are the uses of Groynes?
which are the Indian auther books for STONE COLUMN/GRANULAR PILES?