Cyclopedia of architecture, carpentry, and building : a general reference work . =+8 180 bending moment at b is: A/b = 14 X 5 360 - 4 X 6 400 = 49 440 pound-feet; and the bendingmoment at 6is: Mh- = 5 360 X 14=75 040 pound-feet. The forces intheir proper di-rection are nowplaced on a dia-gram of the truss(Fig. 47), and thestresses are solvedby the method ofStatics. The stressdiagram is givenin Fig. 45, and thestress record inTable VII. The above for-mula are for caseswhen the columnsare free at thelower end. Whenthe columns arenot free, they arecalled fixed; that Fig. 47. Position,

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Cyclopedia of architecture, carpentry, and building : a general reference work . =+8 180 bending moment at b is: A/b = 14 X 5 360 - 4 X 6 400 = 49 440 pound-feet; and the bendingmoment at 6is: Mh- = 5 360 X 14=75 040 pound-feet. The forces intheir proper di-rection are nowplaced on a dia-gram of the truss(Fig. 47), and thestresses are solvedby the method ofStatics. The stressdiagram is givenin Fig. 45, and thestress record inTable VII. The above for-mula are for caseswhen the columnsare free at thelower end. Whenthe columns arenot free, they arecalled fixed; that Fig. 47. Position, Direction, and Intensity of Exterior Forces. ^S, tliey are Sup-posed to be sotightly connected that they cannot move when the post bends asshown in Fig. 42. In such cases the result is the same as if thecolumns were shortened by an amonut n -r- 2, and the followingformuloe result (see Fig. 48): Fig. 46. Position, Direction, and Intensity of Wind Forces,Ends Free.

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Keywords: ., bo, bookcentury1900, booksubjectarchitecture, booksubjectbuilding