چکیده مقاله
Dynamic effects on underground structures have often been neglected based on the assumption that their response to earthquake loading is relatively safe as compared to that of surface structures Nevertheless, several examples of recorded damage to underground structures for which seismic forces were not considered in the original design can be quoted In this paper, static and dynamic non linear analysis of a structure is described and applied to a case study Cohin tunnel in the Ghazvin Rasht road is analysed in order to assess its structural behaviour and its seismic vulnerability Obtained results confirm the susceptibility of this type of structure to extensive damage and possibly to collapse The result provides a global understanding of this tunnel under seismic loading and reveals the weak parts However, because of the lack of information about the type of current reinforcement of the tunnel, it is recommended that more considerations taken into account because there will be possibility of damage under seismic event It is believed that the conclusions obtained with respect to the seismic assessment of Cohin tunnel can be extrapolated for the wide variety of surface and underground structures
کلیدواژهها
نویسندگان
R Gholami
Ph D student, Faculty of Mining, Petroleum and Geophysics, Shahrood University of Technology, Shahrood
A. Kamkar Rouhani
Assistant Prof of geophysics, Faculty of Mining, Petroleum and Geophysics, Shahrood University of Technology
M. Halvaie
MS C of Mining exploitation,
M Mohammadnejad
MS C of Mining exploitation
شیوه ارجاع
Gholami, R and Kamkar Rouhani, A. and Halvaie, M. and Mohammadnejad, M,1390,Evaluating the dynamic behaviour of structures under seismic loading,09th Iranian Tunneling Conference,Tehran
ارائهشده در
مجموعه مقالات نهمین همایش ملی تونل10 آبان 1390 · تهران