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Sectional wide * actual depth ^2 *0.5 =modular ratio*area of steel bar * (effective depth - actaul depth)
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What is working stress method?
it is a method of design in rcc structures, in which stresses of materials is calculated by using working load and compared with allowable stress by considering a linear stress strain relation ship.
Which is economical design out of Limit state and working stress?
limit state method
What is the difference between Allowable Stress Design and Working Stress Design?
allowable stress design-2/3rd of yield working stress design is process yield
Why use working stress method for water tank design?
i think , because water tanks are more vulnerable structures and plus the tank is sometime overfilled and sometime empty, the pressure inside is so varying, its needs more safety precautions and as we all know working stress method assumes more safety factor than limit state design, which is an economical design, we prefer to use working stress method...
Which method is good limit state method or working stress method?
The methods depend based on the type of structures. for eg. for water Retaining structures the Working stress method gives good life and for other structures which is not exposed to water, mostly limit state design works.
You want at least 4 difference between limit state and working stress method of design?
factor of safety
What is Working stress method of RCC design?
This is the method in which the structure is analyzed by elastic theory i.e. theory of simple bending in which materials obey the Hook's law.
What is the difference between limit state method of design working stress method of design?
working stress: in this a structure is designed by considering the stresses in its working condition..Limit state: In this the structure is designed by considering the stresses at different limit states. there are two limit states. ultimate limit state (situation in which structure collapse) and servicability limit state (situation in which cracks etc appears.)
What is the difference between working stress method and limit state method of under reinforced section?
Working stress method of design based on the elastic theory in which materials, concrete and steel are assumed to be stressed well below their elastic limit under the design loads. Working stressess (permissible stress) for the materials are determined by dividing the ultimate or yield stressess by suitable factor of safety values. Limit state method of design based on limit state concept, te structure shall be designed to withstand safely all loads liable to act on it throughout its life;It shall also satisfy the serviceability requirements, such as limitations on deflection and cracking. The acceptable limit for the safety and serviceability requirements before failure occurs is called a "limit state". The aim of design is to achieve acceptable probabilities that the structure will not become unfit for the use for which is intended, that is that it will not reach a limit state...
What is the formula for j in working stress method?
1-(k/3)
Difference between ultimate strength design and working stress design?
Working stress method of design based on the elastic theory in which materials, concrete and steel are assumed to be stressed well below their elastic limit under the design loads. Working stressess (permissible stress) for the materials are determined by dividing the ultimate or yield stressess by suitable factor of safety values. Limit state method of design based on limit state concept, te structure shall be designed to withstand safely all loads liable to act on it throughout its life;It shall also satisfy the serviceability requirements, such as limitations on deflection and cracking. The acceptable limit for the safety and serviceability requirements before failure occurs is called a "limit state". The aim of design is to achieve acceptable probabilities that the structure will not become unfit for the use for which is intended, that is that it will not reach a limit state...
What is the factor of safety value for working stress method?
for concrete a F.O.S. upto 3 is used . and for steel 1.75 to 1.85 .. is used.
