摘要:Reinforcedconcrete frame structures have been widely used in practice. The casualties and economic losses caused by earthquakes are mainly caused by the destruction and collapse of buildings including the reinforced concrete frame structures. The study of the seismic vulnerability of the structure can esti-mate the possible damage to the structure when iten-counters an earthquake in the future, which is of great significance for improving the earthquake re-sistance of the structure. This article studies the vul-nerability of reinforced concrete frame structures. Combining the probabilistic seismic demand analy-sis and the probabilistic seismic capacity analysis of the structure, the seismic vulnerability curves of the reinforced concrete frame structure with the maxi-mum interstory displacement angle and the maxi-mum displacement angle of the vertex as the seismic demand parameters are obtained, and the two curves are compared and analyzed. The average value of the maximum displacement angle between layers of the structural response is 0.0048, the average value of the maximum displacement angle of the vertex is 0.0035, and the average value of the overall defor-mation capacity of the structure is 0.00701. The structural vulnerability curve derived from the max-imum displacement angle between layers is more conservative.