Essentials in the theory of framed structures . h are drawn in the graphic solution of a system ofparallel forces. The diagrams in Figs. 22a and 226 were drawnto determine the magnitude of Q and the magnitude and direc-tion of p. These diagrams are reproduced with some addi-tions in Fig. 55. The shear at any section may be found fromthe magnitude-direction diagram. The shear on any sectionbetween the left reaction and the first load is fa = -I-5 shear on any section between the first and second loads is/& = +3 lb. The shear on any section between the secondand third loads is/c = —2 lb.,


Essentials in the theory of framed structures . h are drawn in the graphic solution of a system ofparallel forces. The diagrams in Figs. 22a and 226 were drawnto determine the magnitude of Q and the magnitude and direc-tion of p. These diagrams are reproduced with some addi-tions in Fig. 55. The shear at any section may be found fromthe magnitude-direction diagram. The shear on any sectionbetween the left reaction and the first load is fa = -I-5 shear on any section between the first and second loads is/& = +3 lb. The shear on any section between the secondand third loads is/c = —2 lb., etc. The bending moment at any section x between the first andsecond loads is M^== pP - sSProduce the location-directions oh and of, to intersect at point / locates the resultant of the two forces P and S;and the magnitude of this resultant is the magnitude-directionfh, therefore pP - sS = triangles GIJ and bof are similar, hence y = yh or Mx = yh Sec. Ill APPLICATION OF PRINCIPLES OF EQUILIBRIUM 8S. €1^9


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Keywords: ., bookcentury1900, bookdecade1920, booksubjectstructu, bookyear1922