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+// Problem no 13.7,Page No.306
+
+clc;clear;
+close;
+
+L=3 //m //span
+d=5 //cm //depth of each plank
+b=15 //cm //width of plank
+d_1=1.9 //cm //Diameter of bolt
+s=12.5 //cm //spacing of bolt
+w=3.3*10**3 //N.m //u.d.l
+
+//Calculations
+
+//Shear Force at 1.5m from support
+F=w*1.5
+
+I=b*(5*d)**3*12**-1 //M.I
+A=%pi*4**-1*d_1**2 //area of Bolt
+Y=5*d*2**-1 //C.G of beam
+y_1=d*2**-1 //c.G of top plank
+
+//Shear Force per metre Length
+F_1=F*b*d*(Y-y_1)*10**-6*(I*10**-8)**-1
+
+//Load carried by bolt
+W_1=F_1*s*10**-2
+
+//shear stress
+X_1=W_1*A**-1*10**+4
+
+//Shear Force per metre Length
+F_2=F*b*2*d*((d+y_1)-Y*10**-6)*(I*10**-8)**-1*10**-6
+
+//Load carried by bolt
+W_2=F_2*s*10**-2
+
+//shear stress
+X_2=W_2*(A*10**-4)**-1*10**-3
+
+//Reult
+printf("Shear stress in a bolt Located at 1.5 m from support is %.2f",X_2);printf(" KN/m**2")