Example 3 0.625 0.625 Fe bar forces in kips. Only bars ad and dc are given as these are the only bars that enter summation. 12 12' ◆0.5 P System T0.5 aLa-0.00,006.5(+50F240inl =+0.078in. aLk=+0.078in. ALp length changes D System in inches > 7.5 deflections(挠度)of space frameworks D System P System 20 f=-1.150 Fab=-0.354 c0.5 0.5 12.50 8.33 20.83 0.833 0 0.833 0 b 0.5* d Fc=0.354 Fac-0 90.5