scholarly journals Inelastic seismic response analysis of eccentrically loaded steel bridge piers.

2000 ◽  
pp. 25-38
Author(s):  
Qingyun LIU ◽  
Tsutomu USAMI ◽  
Akira KASAI
Keyword(s):  
Seismic Response ◽  
Bridge Piers ◽  
Response Analysis ◽  
Steel Bridge ◽  
Seismic Response Analysis ◽  
Inelastic Seismic Response

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

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>

Seismic Fragility Evaluation of Interface Pipes in Seismically Isolated NPPs by Using Scale Model Test

2015 ◽  
Author(s):  
Daegi Hahm ◽  
Min-Kyu Kim ◽  
In-Kil Choi ◽  
Bub Gyu Jeon ◽  
Hyoung Suk Choi ◽  
...  
Keyword(s):  
Seismic Response ◽  
Nuclear Power ◽  
Seismic Isolation ◽  
Response Analysis ◽  
Seismic Events ◽  
Piping System ◽  
Seismic Response Analysis ◽  
Secondary Systems ◽  
Inelastic Seismic Response ◽  
Isolation Device

Seismic isolation system can be an effective alternative to protect the NPPs (Nuclear Power Plants) against to the strong seismic events. Therefore, some research activities to adopt the seismic isolation concept to the design of the next generation NPPs have been progressed for last few years in Korea. Nuclear structures, secondary systems and components must remain undamaged during and after the SSE (Safe Shutdown Earthquake) event. The seismic events will cause the high seismic response in the stiff structural systems and extremely high demands of deformation on the safety-related secondary systems like piping components. If seismic isolation devices are installed in nuclear power plant for seismic stability, safety against seismic load of power plant may be improved. But in some equipment, seismic risk may increase because displacement may become greater than before installation of seismic isolation device. Therefore, it is necessary to select the equipment in which seismic risk increases due to increase in displacement by the installation of seismic isolation device, and perform a research on seismic performance evaluation of equipment. In this study, one of the typical Korean NPPs assuming the application of seismic isolation devices, and one of the interface piping systems which introduced this NPP was used for seismic analysis. The numerical models include representations of seismic isolation devices. In order to validation of numerical piping system model and defining failure mode & limit states, quasi-static loading tests were conducted on the scale-modeled piping components before the analysis procedures. The fragility analysis was performed by using results of inelastic seismic response analysis. Inelastic seismic response analysis was carried out by using shell finite element model of piping system considering internal pressure. The implicit method was used for the direct integration time history analysis. Generally, PGA (Peak Ground Acceleration) was used for seismic intensity of fragility curve. However, in the case of the displacement sensitive system, lateral displacement could be an useful alternative measure for estimation of probability of failure. Thus in this paper, fragility curves were plotted based on maximum relative displacement.

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

Seismic Response Analysis of High Pier and Long Span Rigid Framed Bridge under Non Uniform Excitation

2012 ◽  
Vol 193-194 ◽  
pp. 1315-1319 ◽  
Author(s):  
Can Bin Yin ◽  
Fang Yu
Keyword(s):  
Seismic Response ◽  
Horizontal Displacement ◽  
Travelling Wave ◽  
Bridge Piers ◽  
Response Analysis ◽  
Seismic Response Analysis ◽  
Long Span ◽  
Wave Effects ◽  
High Pier ◽  
Travelling Wave Effect

Taking the Longtan River Bridge as the engineering background , the seismic response analysis of high-pier and long-span continuous rigid-framed bridge considering travelling wave effect is simulated by means of the great mass method . Conclusions are drawn under asynchronous and synchronous excitation respectively , between which comparison indicates that the seismic responses for the main beams of continuous rigid-framed bridge are decreased at various degrees , such as the longitudinal horizontal displacement . The travelling wave effects on the piers are also related to the characteristics and locations of the bridge piers and so on .

SEISMIC RESPONSE ANALYSIS OF THE BUILDING FOUNDATION BASED ON THE DEFORMATION PERFORMANCE TESTS OF PHC-PILE

1999 ◽  
Vol 5 (9) ◽  
pp. 71-76
Author(s):  
Takao MATSUMURA ◽  
Shinichiro ASANO ◽  
Jun YAMADA ◽  
Masao KOBA ◽  
Koji ITO ◽  
...  
Keyword(s):  
Seismic Response ◽  
Response Analysis ◽  
Performance Tests ◽  
Seismic Response Analysis ◽  
Building Foundation
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