Light steel structure houses have a light weight, only about one-fifth of that of brick concrete structure houses and about one-eighth of that of reinforced concrete structure houses, which can greatly reduce the cost of foundation construction. Generally, strip foundations are used for the foundation of light steel structure houses. The floor is composed of high-strength hot-dip galvanized C-shaped and U-shaped light steel components, and the floor beams are arranged with densely spaced ribs according to the standard modulus. The floor beams are covered with structural plates that have undergone strict moisture-proof and anti-corrosion measures, forming a sturdy and seismic resistant floor system.