difference between limit state method and working stress in
terms of load
Answers were Sorted based on User's Feedback
Answer / a.mohamed buhari musa, sankar
In working stress method we are designing the structure for
the load acting on the structure.
In limit state method we are designing for the limit state of
safety and serviceability by applying partial safety factor
partly for the load or moment and partly for the stress
induced in the structure.
I don't know surely this is correct or not.
Is This Answer Correct ? | 19 Yes | 1 No |
in limit state load is overesimate than actual,so we can
assure more reliable.safe than wsm. hence we can obtain
suitable section which is stronger than wsm. it is verry
common. wsm only suitable for chimney, water tank ....etc
Is This Answer Correct ? | 15 Yes | 9 No |
Answer / karthick.k
In case of design procedure , the facted load can be taken
for limit state mtd, by working stress method axial load
can be taken and strength of material is low, by limit
state method strength of material is high.
Is This Answer Correct ? | 1 Yes | 0 No |
Answer / dharma raj pant
limit state is non deterministic i.e. parameters are not
known initially whereas WSM is deterministic
Is This Answer Correct ? | 1 Yes | 0 No |
Working Stress Method
The Stresses in an element is obtained from the working loads and compared with permissible stresses.
The method follows linear stress-strain behaviour of both the materials.
Modular ratio can be used to determine allowable stresses.
Material capabilities are under estimated to large extent. Factor of safety are used in working stress method.
The member is considered as working stress.
Ultimate load carrying capacity cannot be predicted accurately.
The main drawback of this method is that it results in an uneconomical section.
Limit State Method
The stresses are obtained from design loads and compared with design strength.
In this method, it follows linear strain relationship but not linear stress relationship (one of the major difference between the two methods of design).
The ultimate stresses of materials itself are used as allowable stresses.
The material capabilities are not under estimated as much as they are in working stress method. Partial safety factors are used in limit state method.
Is This Answer Correct ? | 0 Yes | 0 No |
How you can turn off the display for dimension in CAD?
how to calculate 1:2:4 ratio concrete cement, sand, metal and water please give me brief calculation
34 Answers Call Centre, CCCL, Oracle, RLM, RPP, Sunanda Infra, Sunrise Enterprises,
Why shear forces are usually neglected in column design?
how to find the diameter of steel bar from steel area
Which one is the main bar in a square slab (2m x 2m)
Totally how many Grades of Concrete are there? and Explain Briefly?
What is the strongest bridge for a school contest?
How to calculate the cement and fine aggregate requirement for solid block masonry works in terms of Sqm. 1. 400x200x200mm 2. 400x200x100mm 3. 600x200x100mm 4. 600x200x200mm I need the answer for 1 Sqm of solid block works.
What are the advantages of building a dam on the river nile?
What is the mixing ratio of M7.5,m10,M30,m35&m40?
15 Answers Reliance, Umiya Construction,
What is allowable limit of silt in river sand for concrete
In BBS,Find out the cutting length for a 2000*2200 column with 50 mm cover?