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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/CH17 | |
| parent | b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b (diff) | |
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initial commit / add all books
Diffstat (limited to '3683/CH17')
| -rw-r--r-- | 3683/CH17/EX17.1/Ex17_1.sce | 16 | ||||
| -rw-r--r-- | 3683/CH17/EX17.2/Ex17_2.sce | 23 |
2 files changed, 39 insertions, 0 deletions
diff --git a/3683/CH17/EX17.1/Ex17_1.sce b/3683/CH17/EX17.1/Ex17_1.sce new file mode 100644 index 000000000..4b9d5be37 --- /dev/null +++ b/3683/CH17/EX17.1/Ex17_1.sce @@ -0,0 +1,16 @@ +b=230//width, in mm
+d=500//effective depth, in mm
+l=4.5//span, in m
+Ast=4*0.785*20^2//four 20 mm dia bars, in sq mm
+fck=20//in MPa
+W=24//in kN/m
+Wu=1.5*W//factored load, in kN/m
+Vu=Wu*l/2//in kN
+Tv=Vu*10^3/b/d//in MPa
+Tcmax=2.8//for M20, in MPa
+//Tv<Tcmax, hence OK
+p=Ast/b/d*100//p=1.1, approximately
+//for p=1.1 and M20 grade concrete
+Tc=0.64//in MPa
+//Tv>Tc, hence shear reinforcement required
+mprintf("Nominal shear stress=%f MPa\nShear strength of concrete=%f MPa",Tv,Tc)
diff --git a/3683/CH17/EX17.2/Ex17_2.sce b/3683/CH17/EX17.2/Ex17_2.sce new file mode 100644 index 000000000..6fd4923cd --- /dev/null +++ b/3683/CH17/EX17.2/Ex17_2.sce @@ -0,0 +1,23 @@ +b=300//width, in mm
+d=1010//effective depth, in mm
+l=7//span, in m
+Ast=round(6*0.785*22^2)//six 22 mm dia bars, in sq mm
+fck=15//in MPa
+fy=250//in MPa
+W=45//in kN/m
+Wu=1.5*W//factored load, in kN/m
+Vu=Wu*l/2//in kN
+Tv=Vu*10^3/b/d//in MPa
+//Tv<Tcmax, hence OK
+p=Ast/b/d*100//p=0.75, approximately
+//for p=0.75 and M15 grade concrete
+Tc=0.54//in MPa
+//Tv>Tc, hence shear reinforcement required
+Vus=Vu-Tc*b*d/10^3//in kN
+//provide 6 mm dia stirrups
+Sv=0.87*fy*2*0.785*6^2*d/Vus/10^3//in mm
+Sv=171//approximately, in mm
+Svmin=2*0.785*6^2*fy/b/0.4//in mm
+Svmin=118//approximately, in mm
+Sv=min(Sv,Svmin)//in mm
+mprintf("Provide 6 mm dia stirrups at %d mm c/c as shear reinforcement",Sv)
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