Ultimate State of Inverted L-Shaped Thin-Walled Hollow Cylindrical Steel Bridge Piers Subjected to Bi-Directional Seismic Excitations

2013 ◽  
Author(s):  
M. Assad Alamiri ◽  
Yoshiaki Goto
Keyword(s):  
Bridge Piers ◽  
Steel Bridge ◽  
Seismic Excitations ◽  
Ultimate State ◽  
Thin Walled ◽  
Cylindrical Steel

scholarly journals PREDICTION OF ULTRALOW CYCLE FATIGUE DAMAGE OF THIN-WALLED STEEL BRIDGE PIERS

2021 ◽  
Keyword(s):  
Cyclic Loading ◽  
Base Metal ◽  
Structural Parameters ◽  
Damage Index ◽  
Bridge Piers ◽  
Steel Bridge ◽  
Cycle Fatigue ◽  
Damage Level ◽  
Deposited Metal ◽  
Thin Walled

Ultralow cycle fatigue (ULCF) failure was first observed on steel bridge piers in the Kobe earthquake, and the ultimate strength and ductility evaluation formulas of thin-walled steel bridge piers were established. In this study, parametric analysis of steel piers was carried out to study the influence of the structural parameters on the ULCF damage evolution. The evolution of the ULCF damage of the base metal, the deposited metal, and the heat-affected zones was studied based on two types of steel piers with hollow box and pipe sections. Then, practical formulas to predict the ULCF damage level of steel piers under cyclic loading were proposed. Finally, the proposed formulas were validated by comparisons with the experimental results. The results show that the heat-affected zone is more vulnerable to ULCF failure than the base metal and the deposited metal. Moreover, the practical formulas to predict the ULCF damage index of the steel piers under cyclic loading were proposed, and the formulas effectively predicted the ULCF crack of the steel piers.

scholarly journals ULTIMATE STATE OF THIN-WALLED STIFFENED RECTANGULAR STEEL COLUMNS UNDER BI-DIRECTIONAL SEISMIC EXCITATIONS

2009 ◽  
Vol 65 (1) ◽  
pp. 61-80 ◽  
Author(s):  
Yoshiaki GOTO ◽  
Ryosuke KOYAMA ◽  
Yusuke FUJII ◽  
Makoto OBATA
Keyword(s):  
Seismic Excitations ◽  
Ultimate State ◽  
Steel Columns ◽  
Thin Walled

Two hysteretic models for thin-walled pipe-section steel bridge piers

2001 ◽  
Vol 23 (2) ◽  
pp. 186-197 ◽  
Author(s):  
Qingyun Liu ◽  
Akira Kasai ◽  
Tsutomu Usami
Keyword(s):  
Bridge Piers ◽  
Steel Bridge ◽  
Pipe Section ◽  
Thin Walled Pipe ◽  
Thin Walled
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