Essentials in the theory of framed structures . %. -5Eijual5paces=l- PlG. Fig. 44. mine the reactions algebraically, construct the magnitude-direction diagram forthe external forces (sometimes called the load line) and draw a stress the stresses with proper signs upon the members. Note that h and i fallat the same point in the stress diagram, indicating that the member HI has nostress and is superfluous for this particular loading. Note also that the stressesin QF and GP are equal, and that the stress in PQ equals the external load atthe joint. In consideration of these obser
Essentials in the theory of framed structures . %. -5Eijual5paces=l- PlG. Fig. 44. mine the reactions algebraically, construct the magnitude-direction diagram forthe external forces (sometimes called the load line) and draw a stress the stresses with proper signs upon the members. Note that h and i fallat the same point in the stress diagram, indicating that the member HI has nostress and is superfluous for this particular loading. Note also that the stressesin QF and GP are equal, and that the stress in PQ equals the external load atthe joint. In consideration of these observations develop a general rule by 72 THEORY OF FEAMED STRUCTURES Chap. II which superfluous members may be eliminated before the stress diagram isbegun. 2. The frame in Fig. 44 has been substituted for the solid body of Fig. a stress diagram. Note that the magnitude-direction diagram for theexternal forces, which constitutes the beginning or foundation of the stressdiagram, has already been constructed in Fig. 2^d. 3. Substitute a frame for the solid body in Fig. 3
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectstructu, bookyear1922
