460和690MPa级抗震耐蚀耐火功能复合型建筑用钢的开发目标，开展理论研究和技术创新，突破了多场耦合服役环境下功能复合化建筑用钢的合金设计和组织调控技术，提出了抗震耐蚀耐火钢的合金设计准则和相间析出、遇火智能析出增强耐火性能的新理念，形成了多相、多尺度组织的相变控制原理和控轧控冷-热处理一体化调控技术

The development goals of 460 and 690MPa grade seismic, corrosion and fire-resistant composite building steels have carried out theoretical research and technological innovation, and have broken through the alloy design and organization control technology of functional composite building steels in the multi-field coupled service environment, and proposed seismic resistance Corrosion-resistant and refractory steel alloy design guidelines and the new concept of interphase precipitation and intelligent precipitation in fire to enhance fire resistance have formed a multi-phase and multi-scale structure phase transformation control principle and integrated control technology of controlled rolling, cooling and heat treatment.