The column connection is made by the column shoes and anchor bolts. The column shoes are cast into precast concrete columns, while the anchor bolts are cast into the foundations or into another column (column splice). On the construction site, the columns are erected on the anchor bolts and adjusted to the correct level and vertical position. Fixing is achieved by tightening nuts onto the anchor bolts. The joint between the column and the structure below should be grouted before the column is loaded. After the grout has hardened, the joint behaves as a reinforced concrete structure.