| 单词 | influence line |
| 释义 | > as lemmasinfluence line influence line n. Engineering a graph showing how the resultant moment, stress, or other quantity at a given point of a structure varies with the position of the applied (constant) load producing it. ΘΚΠ the world > matter > physics > mechanics > force > stress or force exerted and tending to deform > [noun] > diagram or graph stress diagram1869 influence line1902 Mohr diagram1927 1902 Encycl. Brit. XXVI. 377/1 In dealing with the action of travelling loads much assistance may be obtained by using a line termed an influence line. Such a line has for abscissa the distance of a load from one end of a girder, and for ordinate the bending moment or shear at any given section, or on any member, due to that load. 1936 A. J. S. Pippard & J. Baker Anal. Engin. Struct. xiv. 319 We shall consider the truss shown in Fig. 14.18 and find the influence line for the force in a diagonal bracing member as a load rolls along the bottom chord. 1972 R. C. Coates et al. Structural Analysis ii. 51 A bending moment diagram (shear force diagram) shows graphically the value of the bending moment (shear force) at all sections of a beam under a force whose position is fixed; an influence line for bending moment (shear force) shows graphically the value of the bending moment (shear force) at a single section for all possible positions of a movable force. < as lemmas |
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