1. Door-like rigid room. The single storey and light house usually adopts the door-like rigid frame, house frame and network frame as the primary bearing structure. The door-like rigid room structure is the combination of beam column unit component.
There are various types for it. The single span is mostly applied in the rigid frame of single-storey industrial civil house. The double-span or multiple-span rigid frame has reached 72m. It is a structure with a higher integrity, stability and big space areas and is extensively applied at present.
 2. Multi-storey civil construction rigid structure. The multi-storey structure design and construction conform to the state's technology and economic policies. The technology is advanced and it is economically reasonable, safe and applicable, it ensure the quality. It comprehensively takes into consider of the operation function, loading nature, material supply, manufacture and installation as well as the engineering conditions, reasonably select the structure, design and select the structure system and plane and solid plane have good anti-vibration and anti-wind performances. It is very economic in accordance with the structure and knots.