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 Hysteresis Models for Steel Bridge Piers and Their Application to Elasto-Plastic Seismic Response Analysis.

1996 ◽  
pp. 191-204 ◽  
Author(s):  
Moriaki Suzuki ◽  
Tsutomu Usami ◽  
Masahiro Terada ◽  
Tsutomu Itoh ◽  
Kunihiro Saizuka
Keyword(s):  
Seismic Response ◽  
Bridge Piers ◽  
Response Analysis ◽  
Steel Bridge ◽  
Seismic Response Analysis

Seismic Response Analysis on the Repaired HSC Structure after Fire

2014 ◽  
Vol 651-653 ◽  
pp. 1260-1265
Author(s):  
Xiao Ping Su
Keyword(s):  
Experimental Data ◽  
Seismic Response ◽  
Seismic Performance ◽  
Frame Structure ◽  
Response Analysis ◽  
Seismic Response Analysis ◽  
Maximum Displacement ◽  
Seismic Region ◽  
High Rise ◽  
Preliminary Research

With the extensive use of HSC in the tall building and super high-rise building, the harm of HSC subjected to fire has also been increasing. For the concrete structure in the seismic region after fire, its seismic performance after repair directly relates to the structure safety under the action of possible earthquake in the future. Based on the experimental data in the preliminary research, seismic response analysis on the repaired HSC structure after fire was made according to the principle of uniform section. The results indicate that the seismic performance of HSC frame structure repaired by the principle of uniform section can be restored to the level before fire. But we should pay more attention to the interlaminar maximum displacement of fire storey, which should be partly strengthened when necessary.

Seismic response analysis of slender bridge piers

2014 ◽  
Vol 43 (10) ◽  
pp. 1503-1519 ◽  
Author(s):  
E. Tubaldi ◽  
L. Tassotti ◽  
A. Dall'Asta ◽  
L. Dezi
Keyword(s):  
Seismic Response ◽  
Bridge Piers ◽  
Response Analysis ◽  
Seismic Response Analysis
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