Civil Engineering - Steel Structure Design - Discussion
Discussion Forum : Steel Structure Design - Section 1 (Q.No. 3)
3.
For determination of allowable stress in axial compression, Indian Standard Institution has adopted
Discussion:
35 comments Page 1 of 4.
Nigowi said:
5 years ago
According to Indian standard, it is Perry Robertson and according to British, it is Secant formula.
The version of IS 800 before 1984, it was Secant formula for Indian standard.
In the 1984 version, it was Merchant Rankine formula.
But the latest version, in IS 800 2007, it is Perry Robertson formula. Therefore the correct answer is E.
The version of IS 800 before 1984, it was Secant formula for Indian standard.
In the 1984 version, it was Merchant Rankine formula.
But the latest version, in IS 800 2007, it is Perry Robertson formula. Therefore the correct answer is E.
(6)
Ramesh said:
7 years ago
Secant is correct. Because we get modulus of elasticity up to proportionality limit. So up to lower yield point we secant modulus of elasticity and beyond limit, we get tangent modulus. Is code all other have a modulus of a tangent.
Shubham Kumar said:
4 years ago
1. Secant formula was used in an earlier version of IS:800 prior to 1984.
2. IS:800-1984 recommended Merchant-Rankine formula.
3. IS:800-2007 recommends the Perry Roberston formula (see clause 7.1.2.1, pg no-34 of IS:800-2007).
2. IS:800-1984 recommended Merchant-Rankine formula.
3. IS:800-2007 recommends the Perry Roberston formula (see clause 7.1.2.1, pg no-34 of IS:800-2007).
(19)
Faizan Raza Khan said:
8 years ago
1. Secant formula was used in earlier version of IS:800 prior to 1984.
2. IS:800-1984 recommended Merchant-Rankine formula.
3. IS:800-2007 recommend the Perry Roberston formula (see clause 7.1.2.1, pg no-34 of IS:800-2007).
2. IS:800-1984 recommended Merchant-Rankine formula.
3. IS:800-2007 recommend the Perry Roberston formula (see clause 7.1.2.1, pg no-34 of IS:800-2007).
Vaibhav said:
8 years ago
The correct answer is Merchant-Rankine formula. Secant formula was correct according to previous IS codes IS 800:1962. But after that secant formula has been dropped in next IS code IS 800: 1984.
Chetan said:
5 years ago
Perry Robertson is used in European codebooks and secant is used in Indian codebook.
They have asked Indian standard institution so the given answer is correct.
They have asked Indian standard institution so the given answer is correct.
(1)
Munna yadav said:
8 years ago
According to Indian standard institute perry Robertson formula & according to British standard institute Secant formula adopted.
Dinesh said:
4 years ago
Merchant rankine Formula is correct.
Secant formula used before 1984. IS 800 1984 has been applicable to merchant formula.
Secant formula used before 1984. IS 800 1984 has been applicable to merchant formula.
(2)
Suriya janak said:
9 years ago
Its B, as per IS 800:1948 for maximum permissible com stress merchant Rankine formula is used.
Divyaraj said:
6 years ago
Perry robertson according to is 800 2007 and merchant rankine according to is 800 2000.
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