Bridge network vulnerability analysis method considering bridge seismic response correlation

The invention relates to the technical field of traffic network vulnerability analysis, in particular to a bridge network vulnerability analysis method considering bridge seismic response correlation, which comprises the following steps: calculating the maximum drift ratio of piers of each bridge; calculating the correlation between any two bridges in the same road section through a correlation formula; establishing a correlation between the correlation of the bridge and the maximum drift ratio of the corresponding bridge pier, and selecting a predetermined number of bridge earthquake displacement responses through the correlation; comparing the bridge pier maximum drift ratio of each bridge with the bridge pier maximum drift ratio limit value, and calculating the vulnerability of each road section according to the comparison result; judging a size relationship between the vulnerability of each road section in the bridge network and a set value, and calculating the vulnerability of the bridge network accordin