question archive two 25-kip loads are maintained 6 ft apart as they are moved slowly across the 18-ft beam ab
two 25-kip loads are maintained 6 ft apart as they are moved slowly across the 18-ft beam ab
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two 25-kip loads are maintained 6 ft apart as they are moved slowly across the 18-ft beam ab. write a computer program and use it to calculate the bending moment under each load and at the midpoint c of the beam for values of x from 0 to 24 ft at interval delta x = 1.5ft
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Answer:
clear;
clc;
format short;
x1=0:1.5:12;
x2=6:1.5:18;
for i=1:length(x1)
Rb(i)=25*(x1(i)/18)+25*(x2(i)/18);
Ra(i)=50-Rb(i);
Mx1(i)=Ra(i)*x1(i);
Mx2(i)=Rb(i)*(18-x2(i));
if x2(i)<=9
Mc(i)=Rb(i)*9;
end;
if x1(i)>=9
Mc(i)=Ra(i)*9;
end;
if x1(i)>3 && x1(i)<9
Mc(i)=Ra(i)*9-25*(9-x1(i));
end;
end;
disp(' X1 X2 Mx1 Mx2 Mc');
for i=1:length(x1)
a(i,1)=x1(i);
a(i,2)=x2(i);
a(i,3)=Mx1(i);
a(i,4)=Mx2(i);
a(i,5)=Mc(i);
end;
disp(a);
