How long steel structures can actually last

Steel structure design: portal steel structure, frame mostly using H section steel, composite frame steel. Steel structure floor design: steel structure engineering floor is usually used for rolling floor plate, that is, casting reinforced concrete floor, the thickness of the floor is generally not less than 150mm. If steel beams are used together with steel-concrete composite panels, called MST composite beams, as long as the calculations are correct, the reinforcement is reasonable, and the studs are reliable, using steel plates for floor and roof beams can save up to 20% of the cost, which is not needed. Check the stability of steel beams. Compared with concrete building: greatly save the construction time, construction is not affected by the season;

The basic design method of steel structure engineering: the foundation is required to be high, the thickness of the base is 1.5 m to 3 m, and the floor beam is complementary.

Steel structure engineering interior layout flexible, high price. The inner wall partition is used for interior layout with small carrying capacity (such as large open space, empty space, retreat, stratification, etc.), its thickness is about 1/2 that of traditional structure, and the internal use area is increased. More than 10%, 92%; The slab has no main beams and the floor height has been increased by more than 200 mm. Expand the area of living space, reduce construction waste and environmental pollution; Building materials can be recycled, with steel structure as raw material to drive the development of domestic real estate, building materials, hardware industries; Steel structure engineering adopts composite wall and floor, a variety of equipment, pipes, anti-theft, intercom system, fresh air ventilation and other intelligent technology equipment can be perfectly combined with shell products. Its seismic performance is good, easy to modify in use, flexible and convenient, give people comfortable and other advantages.

The advantages of steel structure engineering: steel structure engineering is 30%-50% lighter than reinforced concrete structure, and the section of steel structure is small, the wall thickness is about 1/2 of the traditional structure, and the internal use area increases by more than 10%. Home prices reached 92%. The model is novel, beautiful and generous, fully embodies the characteristics of steel structure and modern architecture. The combined life of steel construction is 70-100 years.