. Practical structural design; a text and reference work for engineers, architects, builders, draftsmen and technical schools;. Fig. 142. — Through Bowstring Truss and Girder Stringer. more nearly approaches a parabola the lower will be the stressesin the web members and the more nearly equal will be the stressin each panel length of the chords. The student should makediagrams for Pratt, Howe, Whipple and Warren trusses withparallel chords and compare these with the same framing of web B c D E F 6 \r ^ ^ ^ [^ l/. Fig. 143. — Deck Bowstring Truss. members in bowstring trusses of the same span,
. Practical structural design; a text and reference work for engineers, architects, builders, draftsmen and technical schools;. Fig. 142. — Through Bowstring Truss and Girder Stringer. more nearly approaches a parabola the lower will be the stressesin the web members and the more nearly equal will be the stressin each panel length of the chords. The student should makediagrams for Pratt, Howe, Whipple and Warren trusses withparallel chords and compare these with the same framing of web B c D E F 6 \r ^ ^ ^ [^ l/. Fig. 143. — Deck Bowstring Truss. members in bowstring trusses of the same span, carrying thesame loads. GRAPHIC STATICS 223 A form of truss used for exhibition halls, drill halls, etc., isshown in Fig. 144 with Whipple framing of web members, andin Fig. 145, with the web members framed as in a Warren truss. oJL
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