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Diffstat (limited to '3864/CH4/EX4.8/Ex4_8.sce')
-rw-r--r-- | 3864/CH4/EX4.8/Ex4_8.sce | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/3864/CH4/EX4.8/Ex4_8.sce b/3864/CH4/EX4.8/Ex4_8.sce new file mode 100644 index 000000000..73bf0efb6 --- /dev/null +++ b/3864/CH4/EX4.8/Ex4_8.sce @@ -0,0 +1,65 @@ +clear +// + +//Initilization of Variables + +L=3 //m //span +sigma_t=35 //N/mm**2 //Permissible stress in tension +sigma_c=90 //N/mm**2 //Permissible stress in compression + +//Flanges +t=30 //mm //Thickness +d=250 //mm //Depth + +//Web +t2=25 //mm //Thickness +b=600 //mm //Width + +//Calculations + +//Let y_bar be the Distance of N.A from Extreme Fibres +y_bar=(t*d*d*2**-1*2+(b-2*t)*t2*t2*2**-1)*(t*d*2+(b-2*t)*t2)**-1 + +//Moment of Inertia +I=(1*12**-1*t*d**3+t*d*(d*2**-1-y_bar)**2)*2+1*12**-1*(b-2*t)*t2**3+(b-2*t)*t2*(t2*2**-1-y_bar)**2 + +//Part-1 + +//If web is in Tension +y_t=y_bar //mm +y_c=d-y_bar //mm + +//Moment carrying caryying capacity From consideration of tensile stress +M=sigma_t*I*(y_bar)**-1 //N-mm + +//Moment carrying caryying capacity From consideration of compressive stress +M1=sigma_c*I*(y_c)**-1 //N-mm + +//If w KN/m is u.d.l in beam,Max bending moment +//M=wl**2*8**-1 +//After further simplifyng we get +//M=1.125*w*10**6 N-mm +w=M*(1.125*10**6)**-1 //KN + +//Part-2 + +//If web is in compression +y_t2=178.299 //mm +y_c2=71.71 //mm + +//Moment carrying caryying capacity From consideration of tensile stress +M2=sigma_t*I*(y_t2)**-1 //N-mm + +//Moment carrying caryying capacity From consideration of compressive stress +M3=sigma_c*I*(y_c2)**-1 //N-mm + +//Moment of resistance is M2 + +//Equating it to bending moment we get +//M2=1.125*10**6*w2 +//After further simplifyng we get +w2=M2*(1.125*10**6)**-1 + +//Result +printf("\n Uniformly Distributed Load carrying capacity if:web is in Tension %0.2f KN",w) +printf("\n :web is in compression %0.3f KN",w2) |