scholarly journals NUMERICAL EVALUATION ON LOAD CARRYING CAPACITIES OF STEEL BRIDGE PIERS DURING LONG DURATION TIME MOTIONS

2015 ◽  
Vol 71 (4) ◽  
pp. I_807-I_814
Author(s):  
Takeshi KITAHARA ◽  
Yusuke KISHI ◽  
Takuma SUZUKI ◽  
Takashi YAMAGUCHI
Keyword(s):  
Numerical Evaluation ◽  
Bridge Piers ◽  
Steel Bridge ◽  
Duration Time ◽  
Long Duration ◽  
Load Carrying

Numerical evaluation on the effect of steel bar corrosion on the cyclic behaviour of RC bridge piers

2021 ◽  
Vol 44 ◽  
pp. 2393-2398
Author(s):  
Rajib Kumar Biswas ◽  
Mistuyasu Iwanami ◽  
Nobuhiro Chijiwa ◽  
Kazuhide Nakayama
Keyword(s):  
Numerical Evaluation ◽  
Bridge Piers ◽  
Cyclic Behaviour ◽  
Steel Bar ◽  
Rc Bridge Piers

Effect on buckling behavior and seismic performance of steel piers corrosion-damaged near ground

2021 ◽  
Author(s):  
Takuma Rokutani ◽  
Kazutoshi Nagata ◽  
Takeshi Kitahara
Keyword(s):  
Seismic Performance ◽  
Rectangular Cross Section ◽  
Steel Structures ◽  
Corrosion Damage ◽  
Bridge Piers ◽  
Response Analysis ◽  
Steel Bridge ◽  
Seismic Response Analysis ◽  
Economic Miracle ◽  
Buckling Behavior

<p>In Japan, many steel structures were constructed during the period of the high economic miracle, and they are now more than 50 years old and are aging. Corrosion has been confirmed at corners and the boundary of concrete-wrapped concrete in steel piers. It was found that corrosion damage at the corner of steel piers causes a decrease of seismic performance in our previous investigations that carried out seismic response analysis. Subsequently, in this study, the effect of corrosion damage at the near ground edge of steel bridge piers with a rectangular cross-section was investigated in detail on the buckling behaviour and seismic performance of structures. As a result, it is found that the buckling at the base causes a decrease in load bearing performance compared to the buckling in the entire panel. It is necessary to properly maintain to prevent buckling at the base caused by corrosion.</p>

scholarly journals Existing Steel Railway Bridges Evaluation

2016 ◽  
Vol 12 (2) ◽  
pp. 103-110 ◽  
Author(s):  
Josef Vičan ◽  
Jozef Gocál ◽  
Jaroslav Odrobiňák ◽  
Peter Koteš
Keyword(s):  
Carrying Capacity ◽  
Global Analysis ◽  
Evaluation Process ◽  
Steel Bridge ◽  
Load Carrying Capacity ◽  
Railway Bridges ◽  
Load Carrying ◽  
Bridge Superstructure ◽  
Existing Bridges ◽  
Capacity Determination

Abstract The article describes general principles and basis of evaluation of existing railway bridges based on the concept of load-carrying capacity determination. Compared to the design of a new bridge, the modified reliability level for existing bridges evaluation should be considered due to implementation of the additional data related to bridge condition and behaviour obtained from regular inspections. Based on those data respecting the bridge remaining lifetime, a modification of partial safety factors for actions and materials could be respected in the bridge evaluation process. A great attention is also paid to the specific problems of determination of load-caring capacity of steel railway bridges in service. Recommendation for global analysis and methodology for existing steel bridge superstructure load-carrying capacity determination are described too.

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