(2020 Question) Compared with reinforced concrete structures, the advantages of section steel and concrete combined structures are ().

(6) Section steel and concrete composite structure

Compared with traditional steel reinforced concrete structure: large bearing capacity, high stiffness, good seismic performance.

Compared with steel structure: good fireproof performance, good local and overall stability of the structure, saving steel.

Advantages: applied to large structures, strive to minimize the cross-section, maximum bearing capacity, space saving,

Disadvantages: higher cost.