The utility model relates to a building construction element with a steel structure, which comprises steel pipe columns of depositing concrete, steel beam supports and a U-shaped steel beam, wherein, each of the steel beam supports is composed of at least one support which is welded around the steel pipe columns; each of the supports is composed of upper and lower column holders which are in parallel, and at least one pair of connection boards which are vertically arranged between each of the upper and lower column holders along a radial direction, wherein, each of the upper column holders as well as the lower column holders is provided with an arc surface, a body part, and a protruding portion along the trend of each pair of the connection boards; at least two pairs of connecting boards are formed on the steel beam supports, and each pair of the connecting boards and each of the protruding portions corresponding to the upper and lower column holders are fixedly connected with one end of the I-shaped steel beam. The steel beam supports in different positions of a whole building can be obtained by combining a plurality of kinds of the supports in standard construction.