The invention discloses a combined wall with an angle steel
keel combined with light concrete. The light concrete is
foam concrete, ceramsite concrete,
perlite concrete, polyphenyl granule concrete,
coal ash concrete and the like. The angle steel
keel is formed by connecting densely arranged angle steel sheet columns and square columns through a floor ring beam, a wall
waist ring beam, a wall bracing truss and a screw or a bolt. The sheet column or the square column is formed from an angle steel chord member with a turned edge or not, a square (rectangular)
pipe, an angle steel, a channel steel connecting piece or a stamped part through connection by means of a screw or a bolt or through bonding
spot welding. The floor ring beam, the wall
waist ring beam and the wall bracing truss are fabricated from square (rectangular) pipes and channel steels. The break of the angle steel chord member is formed from an angle steel jointing connecting piece through connection by using a screw or a bolt or through bonding
spot welding. An angle steel guide rail is connected with a foundation ring beam chemically or through an embedded bolt. The sheet columns and the square columns are connected with the guide rail directly through a screw and a bolt or through bonding
spot welding. The combined wall provided by the invention has the advantages of high bearing capability, simplicity in production and
assembly, good fireproof and corrosive resisting performance, low manufacturing cost and the like.