What are the advantages of limit state method over working stress and ultimate load method?

Advantages of limit state method It uses modern method of design of structure which involves wide range of logical and technical consideration. It involves separate consideration of different kinds of failure, types of materails, and types of load. It provides economical design of structure.

Why is limit state method preferred over working stress method?

The limit state method is based on predictions unlike working stress method which is deterministic in nature, assumes that the loads, factors of safety and material stresses are known accurately.

What are different types of limit state method?

There are two main limit states: (i) limit state of collapse and (ii) limit state of serviceability (see Fig. 2.3. 1). (i) Limit state of collapse deals with the strength and stability of structures subjected to the maximum design loads out of the possible combinations of several types of loads.

Which one is limitation of working stress method WSM of design?

Limitation of wsm The assumption of linear elastic behavior and control of stresses within specially defined permissible stresses are unrealistic due to several reason viz, creep, shrinkage and other long term effect, stress concentration and other secondary effects.

What are the advantage of LSM over WSM?

1) Serviceability check in case of LSM is required because after the elastic region strain is higher, which results in more deformation, hence a check is necessary. 2) LSM is strain based method whereas WSM is stress based method. 3) LSM is non-deterministic method whereas WSM is deterministic approach.

What are the advantages of LSM?

The advantages include: better compression – on real and synthetic workloads we measure 2X better compression with MyRocks compared to compressed InnoDB. A B-Tree wastes space when pages fragment. An LSM doesn’t fragment.

What are the assumptions of LSM method?

Plane sections normal to the axis remain plane after bending. The maximum strain in concrete at the outermost compression fibre is 0.0035 in bending. Tensile strength of concrete is ignored. Maximum strain in the tension reinforcement in the section at failure shall not be less.

What are the assumptions of LSM WSM?

Assumptions in Working Stress Method Plane Section before bending will remain plane after bending. The stress-strain relationship will follow Hooke’s law. The tensile stress is taken by steel only. The modular ratio is given by m = 280/3𝛔cbc.