The box column has good working performance in two mutually perpendicular stress directions, which can better meet the steel column strength and overall structural stability. Therefore, designers often design the steel column in multi-storey and high-rise steel structure buildings as box column
H-beam is a kind of economic section high-efficiency profile with more optimized cross-section area distribution and more reasonable strength weight ratio. It is named after its section is the same as the English letter "H". Because all parts of H-beam are arranged at right angles, H-beam has the advantages of strong bending resistance, simple construction, cost saving and light structure weight in all directions, and has been widely used.
Latticed columns are used as bending and compression members, and they are mostly used in frame columns and independent columns of power houses. The cross-section is usually steel or steel plate, and the cross-section is designed as biaxial symmetry or uniaxial symmetry. The members of the lattice system are composed of limbs and battens. The limbs mainly bear the axial force, and the battens mainly resist the lateral force
The cross column has no weak axis, and the failure mode belongs to the plastic failure of local buckling, and the plastic deformation mainly occurs on the flange of the plane of moment action. Its flexural capacity, ductility and seismic bearing capacity are good