The building code of the city of Boston. (title varies) (1921)
Boston (Mass.). Building Dept · leaf 72
23.—Position of neutral axis, kd^ j^ndAs + (b — h)fi ^/nAs + {h—h)tY (11) nAs + (b — h)t h ^V^ Par. 124.— Position of resultant compression, (fc^^^ —f^)b-f r ikd -ty (t+Ukd-t) ) W ,j2) t{2kd — t)h-\-{kd — tYh Par. 125.— Arm of resisting couple, jd=d — z (13) Par. 126.— Fiber stresses, Z--;^ (14)… … k=J2n(v+p^^+nKp+pr — n{p-{-p).. • (16)Par. 129.— Position of resultant compression, k^-^2pnfk — ^\ Par. 130.— Arm of resisting couple,jd = d—z...Par. 131.— Fiber stresses, 6M fc = ,,[3.-.+^-fX^-f)(.-!)] .(17) .(18).(19) 66 City of Boston Building Law. Sect. 15.1 Par. 132.- /=^=^¥ Par. 133.— dk fs =…
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