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与普通结构钢相比,高性能钢具有更高的强度、延性、可焊性、断裂韧性以及耐火耐候性,至今已在国内外众多大型建筑和桥梁结构中得到应用。通过对国内外高性能钢的力学性能和相关工程应用的综述及与国外高性能钢材性能的对比,指出我国高性能钢发展和应用的瓶颈和亟待解决的问题。
Compared with ordinary structural steel, high-performance steel with higher strength, ductility, weldability, fracture toughness and fire resistance and weatherability has so far been applied in many large-scale construction and bridge structures at home and abroad. Through the summary of the mechanical properties of domestic and foreign high-performance steel and related engineering applications and the comparison with the performance of foreign high-performance steel, the bottlenecks and problems to be solved in the development and application of high-performance steel in our country are pointed out.