000			a
999			_c14602 _d14602
003			OSt
005			20210305122522.0
008			210305b xxu||||| |||| 00| 0 eng d
040			_aAIKTC-KRRC _cAIKTC-KRRC
100			_913610 _aThomas, Abey E.
245			_aEffects of Irregular Bridge Columns and Feasibility of Seismic Regularity
250			_aVol,99(3), September
260			_aKolkata _bSpringer _c2018
300			_a579-585p.
520			_aBridges with unequal column height is one of the main irregularities in bridge design particularly while negotiating steep valleys, making the bridges vulnerable to seismic action. The desirable behaviour of bridge columns towards seismic loading is that, they should perform in a regular fashion, i.e. the capacity of each column should be utilized evenly. But, this type of behaviour is often missing when the column heights are unequal along the length of the bridge, allowing short columns to bear the maximum lateral load. In the present study, the effects of unequal column height on the global seismic performance of bridges are studied using pushover analysis. Codes such as CalTrans (Engineering service center, earthquake engineering branch, 2013) and EC-8 (EN 1998-2: design of structures for earthquake resistance. Part 2: bridges, European Committee for Standardization, Brussels, 2005) suggests seismic regularity criterion for achieving regular seismic performance level at all the bridge columns. The feasibility of adopting these seismic regularity criterions along with those mentioned in literatures will be assessed for bridges designed as per the Indian Standards in the present study.
650		0	_94621 _aCivil Engineering
773	0		_tJournal of the institution of engineers (India): Series A _x 2250-2149 _dSwitzerland Springer
856			_uhttps://link.springer.com/article/10.1007/s40030-018-030 _yClick Here
942			_2ddc _cAR