The Strauss Bascule Bridge Company, Inc., engineers and designers of trunnion, bascule and direct lift bridges. . ent of (YV)about (T) will be e(|ual .\.m\ opposite to the moment .-I (P) about (T). The center of gravity of theconcrete counterweight is therefore located at igl. 1b Mam Ox/nfer-iv^—jff^^ • I s^ / econdary Counter^i^^^. :^s2^s /S j^E \ P, *t n\Lfl P?l- : [CI ELI 28 A \ / / 1:; H X ?\±\ / / Z \ t~ f 1 - thethe iabout (T) and ical force at ,1 pclelogram (ABC1be opposite and i(CD) where thisapplied, draw a -(T) it nit. (G), -i located that>oul (T) will equal»ments I,. I., an
The Strauss Bascule Bridge Company, Inc., engineers and designers of trunnion, bascule and direct lift bridges. . ent of (YV)about (T) will be e(|ual .\.m\ opposite to the moment .-I (P) about (T). The center of gravity of theconcrete counterweight is therefore located at igl. 1b Mam Ox/nfer-iv^—jff^^ • I s^ / econdary Counter^i^^^. :^s2^s /S j^E \ P, *t n\Lfl P?l- : [CI ELI 28 A \ / / 1:; H X ?\±\ / / Z \ t~ f 1 - thethe iabout (T) and ical force at ,1 pclelogram (ABC1be opposite and i(CD) where thisapplied, draw a -(T) it nit. (G), -i located that>oul (T) will equal»ments I,. I., and Itins to locate a verti--ide (CD) oi tin- paral- lonient about (T) will0. To find the point on ancing lone should befrom point (G) throughline (CD) which point The similar triangles (TAG) and (TgC) remain similar during the operation of tin I,\virtue of the parallelogram (ABCD) and, therefore,the horizontal moment arms (x1) and In) ,.1 the ion-taut vertical forces (P) and (W) will always ? relal ? the i bridge is in perfee Fig. 29 (a)Highway Bridge b the The, Strauss Bascule Bridge Company. The Strauss Bascule Bridge Company mpleted in 1915. The as approach spans, one 75 and the other 85 feet in (i its vertical travel is length. The bridge was erected in the open position The clear width of and the counterweight trusses facilitated, to a large r spans also serve extent, the erection by the cantilever method.
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Keywords: ., bookcentury1900, bookdecade1920, bookidthestraussba, bookyear1920
