Vertical support for most of the steel structure up to this point has been provided by the walls constructed using the Concrete Masonry Unit (CMU) approach.
As the construction moved to the Western section of the building vertical supports had to be placed in areas without walls. The pictures below show the sequence of events used to install medium sized columns. There will also be large columns in the back of the sanctuary for additional support.
Columns are designed to support vertical loads. The have some resistance to lateral loads. To ensure lateral support columns are braced side to side. This picture shows attatchment points on one of the columns.