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+clear all; clc;
+
+disp("Scilab Code Ex 11.2 : ")
+
+//Given:
+l = 200/1000;//m
+t = 30/1000;//m
+sigma_allow = 12; //MPa
+tou_allow = 0.8; //MPa
+V_nail = 1.50; //kN
+l_bc = 2; //m
+l_cd = 2; //m
+
+//Shear and Moment Diagrams:
+V_max = 1.5; //kN
+M_max = 2; //kNm
+
+//Bending Stress:
+y1 = l/2;
+A1 = l*t;
+y2 = l+(t/2);
+A2 = t*l;
+y_dash = (y1*A1 + y2*A2)/(A1 + A2);
+
+I1 = (t*l^3)/12 + (t*l*(y_dash - y1)^2);
+I2 = (l*t^3)/12 + (t*l*(y2 - y_dash)^2);
+I =I1 + I2;
+
+c = y_dash;
+sigma = (M_max*c)/(I);
+flag1 = 0;
+sigma_allow = sigma_allow*1000; //kPa
+
+if(sigma<sigma_allow)
+    flag1 = 1;
+end
+
+//Shear Stress:
+y3 = y_dash/2;
+A3 = y_dash*t;
+Q = y3*A3;
+
+tou = (V_max*Q)/(I*t);
+tou_allow = tou_allow*1000; //kPa
+flag2 =0;
+
+if(tou<tou_allow)
+    flag2 = 1;
+end
+
+//Nail Spacing:
+y4a = (l+t-y_dash);
+y4 = y4a - (t/2);
+A4 = l*t;
+Q4 = y4*A4;
+V_bc = 1.5; //kN
+V_cd = 1; //kN
+
+q_bc = (V_bc*Q4)/I;
+q_cd = (V_cd*Q4)/I;
+
+s_bc = (V_nail)/(q_bc);
+s_cd = (V_nail)/(q_cd);
+
+chosen_bc = 150; //mm
+chosen_cd = 250; //mm
+
+if(flag1==1 & flag2==1)
+     
+    printf('\n\nThe design is safe in bending and shear.');
+    printf('\nThe calculated nail spacing BC = %1.3f m',s_bc);
+    printf('\nThe calculated nail spacing CD = %1.3f m',s_cd);
+    printf('\nThe chosen nail spacing BC     = %1.0f mm',chosen_bc);
+    printf('\nThe chosen nail spacing CD     = %1.0f mm',chosen_cd);
+end
+
+//--------------------------------------------------------------------------END-------------------------------------------------------------------------------------
+
+
+
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+
+
+
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+