Steel Buildings in Europe

Part 5: Joint Design 5 – 101 6 COLUMN BASES This design method applied to fixed bases of I section columns transmitting an axial compressive force, and a shear force (i.e. a nominally pinned column base). The rectangular base plate is welded to the column section in a symmetrically position so that it has projections beyond the column flange outer edges on all sides. 6.1 Base plate size p f b b p f b h h h Basic requirement: A p  A req [Reference 4] A p = area of base plate = h p b p for rectangular plates A req = required area of base plate = jd Ed f F f jd = 3 2  f cd where:  =   , , max min 1 p p f              h b d                       , 1 2 ,3 1 2 p b p h b e h e [Reference 3] If some dimensions are unknown, a value of  = 1,5 is generally appropriate. h p is the length of the base plate b p is the width of the base plate d f is the depth of the concrete foundation h f is the length of the concrete foundation