NON-LINEAR ANALYSIS OF BRIDGE STRUCTURES

44003

For the health tracking of civil infrastructures, it is essential to determine the non-linear behaviour connected to structural damage. For the precise assessment of these types of non-linear behaviours, it is essential to evaluation of how these structures will function when exposed to specific earthquake movement. To determine the behaviour, non-linear static or non-linear time history analysis approach can be utilized, but the locally destroyed impact has to be also regarded. With the prominent impact of basic mode of non-linear static approach, non-linear time history evaluation approach is broadly utilized for the evaluation of complex non-linear behaviour with many degrees of freedom and with local damages. In this study, the non-linear time history evaluation method with some restricted higher modes accounting the impact of local damages is suggested. Specifically, some RC piers are presumed to be surpassed the yield capability throughout earthquakes and trigger large inelastic deformations and damage. To identify the seismic response extremely impacted by the hysteretic behaviour of destroyed RC piers, the modified Takeda model is presented. As a confirmation of effectiveness of suggested approach, the non-linear responses of damaged bridge structure are investigated among suggested approaches and above described traditional non-linear analysis approach.

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Nonlinear Dynamics , hysterical model , modified Takeda model , modal order , substructure

Trakya university journal of engineering sciences

30

Trakya university journal of engineering sciences