First, to install Column and brace with propping. All beam support is to be installed prior to put up the column.
Second, after grouted the bottom of column, prop is release and the process continue to the rest of columns.
It installed with a big crane with a sufficient capacity and boom lift is used to assist for lifting operation.
After that, beam is to be installed up to the required level. The pocket of beam will be cast in situ to joint the column and beam together.
Scaffolding is erected to provide a working platform for stages installation.
The process is repeated from column to column.
After that, follow up with beam installation.
It is a Big Man LEGO...