1 files changed, 24 insertions, 0 deletions
diff --git a/3683/CH4/EX4.9/Ex4_9.sce b/3683/CH4/EX4.9/Ex4_9.sce
new file mode 100644
index 000000000..8a752d6a2
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+D=120//thickness of slab, in mm
+l=1.5//span of slab, in m
+s=0.23//thickness of support, in m
+Lef=l+s//effective span, in m
+W1=3//UDL, in kN/m^2
+cover=15//in mm
+sigma_cbc=5//in MPa
+sigma_st=140//in MPa
+m=18.66//modular ratio
+W2=(D/10^3)*1*25//self load, in kN/m
+W=W1+W2//in kN/m
+M=W*l^2/2*10^6//bending moment at face of wall, in N-mm
+//10 mm dia bars at 145 mm c/c as main steel
+dia=10//in mm
+d=D-dia/2-cover
+c=100//spacing of reinforcement, in mm
+Ast=1000*0.785*dia^2/c//in sq mm
+//assuming balanced section
+z=0.87*d//in mm
+sigma_st=M/(Ast*z)//in MPa
+Tbd=0.6//bond stress in MPa
+Ld=dia*sigma_st/(4*Tbd)//in mm
+Ld=412//round-off,in mm
+mprintf("Development length required from the face of the support = %d mm",Ld)