| Abstrakt: |
Bridges are very important components of transportation networks, and as key points of the network, their recovery after losing performance or safety is much more complicated than other assets. Reconstruction of the bridge is also challenging and expensive. Considering the very vital role of the technical infrastructure of the transportation system, especially the bridges, it became necessary to examine the condition of the bridges of the road arteries of Alborz province. In this survey, first, important and influential technical buildings were identified in the Tehran-Karaj-Qazvin axis, the special Karaj-Qazvin axis, the Kandavan axis, the Taleghan axis, and the Eshtehard axis. Then, technical inspection groups were sent to this region and functional inspection of the structure and identification of vulnerability factors were carried out based on pre-prepared checklists. After extensive field observations, defects in the structures were determined along with all the items related to their current physical and functional conditions. All the parameters taken in the structures were given some weight based on the importance and type of impact of the damage, and according to all the taken parameters as well as the importance coefficient of each, a kind of management classification was made based on the levels of vulnerability in the buildings of the province into four groups. According to the results obtained in Eshtehard axis: 2 bridges with vulnerability degree of A and one bridge with vulnerability degree of B, in the Taleghan axis: 2 bridges with vulnerability degree of A, 3 bridges with vulnerability degree of B, 1 bridge with vulnerability degree of C and 2 bridges with vulnerability degree of D, in the Karaj-Qazvin axis: 10 bridges with vulnerability degree of A, 12 bridges with vulnerability degree of B, 16 bridges with vulnerability degree of C and 3 bridges with vulnerability degree of D, and in Kandavan axis: 11 bridges with vulnerability degree of A, 10 bridges with vulnerability degree of B, 9 bridges with vulnerability degree of C and 2 bridges with vulnerability degree of D were identified. [ABSTRACT FROM AUTHOR] |
