从五十年代以来,国内外对钢混组合结构的研究与应用已日渐增多,研究和应用范围也在不断扩大。由于它较非组合结构,具有刚度大,抗震、抗振和抗疲劳性能好,安全度高,受力性能比较明确,施工简便且工 Since the 1950s, research and application of steel-concrete composite structure at home and abroad have been increasing, and the scope of research and application is also expanding. Because it is more non-composite structure, it has high rigidity, good anti-seismic, anti-vibration and anti-fatigue properties, high safety, relatively clear stress performance, simple construction and workmanship.