Illinois Society of Architects · Chicago · leaf 403
Behlen lloM, ChicagoIkii)stein & Co.. Architects Cut above shows how we erectthe stairs as fast as the struc-tural steel is erected. Cut on right shows same stairin detail. Note how platform is supportedfrom beam above. PRESTEEL STAIRWAYS Made to suit any building orcondition. We furnish and… … 403 The laterally unsupported length ofbeams and girders shall not exceed40 times b the width of the compres-sion flange. On extreme fibres of pins, whenthe forces are assumed as acting atthe center of gravity of the pieces.. 27,000 ( d t Shearing-: On pins 13,500 I 111 ]H iwer-driven rivets 13,500…
Architecture · Building · Architects
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