一种建筑钢结构用耐火耐候高强螺栓钢耐火性能匹配的方法，属于建筑钢结构螺栓钢技术领域。步骤为:先选用满足1000 Mpa级建筑钢结构用耐大气环境腐蚀、耐火性能要求的高强螺栓钢，成分重量百分比为：C:0 .16‑0 .25％，Si:0 .1‑0 .3％，Mn:0 .3‑0 .9％，Ti:0 .03‑0 .08％，Cr:0 .3‑1 .2％，W:0 .001‑0 .8％等，余量为Fe和不可避免杂质；再测试螺栓钢耐火性能；最后制造成生产规格为12‑30mm的高强螺栓。优点在于：解决了普通高强螺栓钢不具备的耐大气腐蚀和耐火性能要求，并提供一种建筑钢结构结合部耐火性能的匹配方法。

The invention relates to a method for matching the fire resistance of refractory weather resistant high strength bolt steel for building steel structure, belonging to the technical field of building steel structure bolt steel. The steps are as follows: first select the high-strength bolt steel that meets the requirements of atmospheric corrosion resistance and fire resistance for 1000 Mpa grade building steel structure, and the percentage of component weight is: C:0 16 0 25%, Si:0 1 0 3%, Mn:0 3 0 9%, Ti:0 03 0 08%, Cr:0 3 1 2%, W:0 001 0 8% etc., allowance for Fe and inevitable impurities; Then test the fire resistance of bolt steel; Finally manufactured into production specifications for 12 30mm high-strength bolts. The advantages are as follows: it solves the requirements of atmospheric corrosion resistance and fire resistance that ordinary high strength bolt steel does not have, and provides a matching method of fire resistance of joints of building steel structure.