Sir there is a question in case of under reinforced section steel reaches its max stress but concrete doesn't then while we are calculating the value of MOR can we use the formula of compression side to calculate mor if yes then how i mean sir concrete has not reached its failure value ???? Anyone from comment section if know pls reply
Yes bro I was also thinking about it. The formula 0.36*f(ck)*B*x(u)=0.87 f(y) *A(st) can be used only for balanced section. For u/R section right side part of the equation is ok but since compression side does not reach 0.0035 strain then how can we Wright the equ for U/R section also. We examine a section Whether it is u/R or not, by assuming concrete strain 0.0035 has reached, since the formula we are using to determine a is U/R or not based on the formula which is developed by assumption of concrete strain as. 0035. It is very confusing, I also searching the answer but unable till today. Thanks for writing your confusion.
Ek Question he mera... Suppose beam under reinforced he. Useme 2 case he. 1) Xu = 190 (U.R.S.) 2) Xu = 210 (U.R.S) Dono me under reinforce section he. to hame konsa choose karna chaiye or kyo? Uski vajah se neutral axis or stress & strain me kya difference hoga. ?
Simply you have to choose the case 1 whose Xu value is lesser because lesser the Xu value lesser will be the compressive strain. Case 1 is safer than the other one.
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For balanced section.... Actual stress in tension and compression will be less then equal to permissiable... Please reply...
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Sir there is a question in case of under reinforced section steel reaches its max stress but concrete doesn't then while we are calculating the value of MOR can we use the formula of compression side to calculate mor if yes then how i mean sir concrete has not reached its failure value ???? Anyone from comment section if know pls reply
Yes bro I was also thinking about it. The formula
0.36*f(ck)*B*x(u)=0.87 f(y) *A(st) can be used only for balanced section. For u/R section right side part of the equation is ok but since compression side does not reach 0.0035 strain then how can we Wright the equ for U/R section also. We examine a section Whether it is u/R or not, by assuming concrete strain 0.0035 has reached, since the formula we are using to determine a is U/R or not based on the formula which is developed by assumption of concrete strain as. 0035. It is very confusing, I also searching the answer but unable till today. Thanks for writing your confusion.
Ek Question he mera...
Suppose beam under reinforced he.
Useme 2 case he.
1) Xu = 190 (U.R.S.)
2) Xu = 210 (U.R.S)
Dono me under reinforce section he. to hame konsa choose karna chaiye or kyo?
Uski vajah se neutral axis or stress & strain me kya difference hoga. ?
Simply you have to choose the case 1 whose Xu value is lesser because lesser the Xu value lesser will be the compressive strain. Case 1 is safer than the other one.
@@sidhantakhatua8744 Thanks...
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Who else looked up to see if there's any crack on the beam?😆
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