耐火设计是超高层建筑防火的一大手段，从防火性能上去考虑，主要从超高层建

Fire-resistant design is a major means of fire protection for super high-rise buildings. From the perspective of fire performance, it mainly starts with the selection of super high-rise building materials. From the perspective of fire performance, the hybrid structure has greater advantages than the all-steel structure. Once a fire occurs in a super high-rise building, the mechanical properties of the building materials will be greatly affected due to the continued high temperature, and serious deformation will occur for a long time. The construction materials of the mixed structure not only have greater advantages than the steel structure in terms of high-temperature bearing capacity, but also the density of the mixed structure material itself is very small, and the impact resistance against collapse is not good

Fire-resistant design is a great means of fire prevention of super-high-rise buildings, from the fire performance to consider, mainly from the selection of super-high-rise building materials up and down. From the point of view of fire resistance, the hybrid structure has the advantage of the whole steel structure. Once a fire occurs in a super-high-rise building, the mechanical properties of building materials will be greatly affected by the continuous high temperature, and the duration will be severely deformed. The building material of the mixed structure not only has greater advantage over the steel structure in terms of high temperature tolerance, but also the density of the mixture structure material itself is very small, and the impact force against collapse is not good.

Fire resistant design is a major means of fire prevention for super high-rise buildings. The selection of materials for super high-rise buildings is mainly considered from the fire-proof performance. From the perspective of fire performance, the hybrid structure has more advantages than the all steel structure. Once a fire occurs in a super high-rise building, the mechanical properties of building materials will be greatly affected under the influence of high temperature, and serious deformation will occur for a long time. The building materials of hybrid structure not only have more advantages than steel structure in high temperature bearing capacity, but also have low density and poor collapse resistance<br>