mininum bearing for steel on masonry is 150mm but you could be comfortable with 100mm if it was for a doorway. The only time it would be less if it was say a precast concrete slab onto a steel beam and you could have 75mm.
mininum bearing for steel on masonry is 150mm but you could be comfortable with 100mm if it was for a doorway. The only time it would be less if it was say a precast concrete slab onto a steel beam and you could have 75mm.
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