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| author | prashantsinalkar | 2017-10-10 12:27:19 +0530 |
|---|---|---|
| committer | prashantsinalkar | 2017-10-10 12:27:19 +0530 |
| commit | 7f60ea012dd2524dae921a2a35adbf7ef21f2bb6 (patch) | |
| tree | dbb9e3ddb5fc829e7c5c7e6be99b2c4ba356132c /3683/CH3/EX3.9/Ex3_9.sce | |
| parent | b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b (diff) | |
| download | Scilab-TBC-Uploads-7f60ea012dd2524dae921a2a35adbf7ef21f2bb6.tar.gz Scilab-TBC-Uploads-7f60ea012dd2524dae921a2a35adbf7ef21f2bb6.tar.bz2 Scilab-TBC-Uploads-7f60ea012dd2524dae921a2a35adbf7ef21f2bb6.zip | |
initial commit / add all books
Diffstat (limited to '3683/CH3/EX3.9/Ex3_9.sce')
| -rw-r--r-- | 3683/CH3/EX3.9/Ex3_9.sce | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/3683/CH3/EX3.9/Ex3_9.sce b/3683/CH3/EX3.9/Ex3_9.sce new file mode 100644 index 000000000..aefc35ea1 --- /dev/null +++ b/3683/CH3/EX3.9/Ex3_9.sce @@ -0,0 +1,17 @@ +Bf=1250//width of flange, in mm
+Df=120//thickness of flange, in mm
+d=700//effective depth, in mm
+m=13.33//modular ratio
+Ast=5500//in sq mm
+W=60//UDL including self-weight, in kN/m
+l=8//span, in m
+M=W*l^2/8*10^6//in N-mm
+//Assume x>Df. Equating moments of area on compressiona and tension sides about N.A.
+x=(m*Ast*d+Bf*Df^2/2)/(m*Ast+Bf*Df)//in mm
+//let sigma_cbc_dash=a*sigma_cbc
+a=(x-Df)/x
+//to find lever arm
+z=d-(1+2*a)/(1+a)*Df/3//in mm
+sigma_cbc=2*M/(Bf*Df*(1+a)*z)//in MPa
+sigma_st=m*sigma_cbc*(d-x)/x//in MPa
+mprintf("Stress in concrete=%f N/mm^2\nStress in tension steel=%f N/mm^2",sigma_cbc,sigma_st)
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