6.1.2 Pillars
are to be fitted in the same vertical line wherever possible and effective
arrangements are to be made to distribute the load at the ends of
all pillars. Where pillars support eccentric loads, they are to be
strengthened for the additional bending moment imposed upon them.
6.1.3 Pillars
of hollow section are to be attached at their heads to plates supported
by efficient brackets, in order to transmit the load effectively.
Doubling or insert plates are to be fitted to the inner bottom under
the heels of hollow pillars, and to decks under large pillars. The
pillars are to have a bearing fit and are to be attached to the head
and heel plates by continuous welding. At the ends of pillars built
of rolled open sections, the load is to be well distributed by means
of longitudinal and transverse brackets.
6.1.4 Where
pillars are fitted inside tanks the tensile stress in the pillar and
its end connections is not to exceed 108 N/mm2 at the test
heads. In general, such pillars should be of fabricated sections,
and end brackets may be required.