scholarly journals Performance Evaluation of Damage-Integrated Composite Steel Girder Highway Bridges

2014 ◽  
Author(s):  
Amir Gheitasi
2020 ◽  
Vol 219 ◽  
pp. 110855
Author(s):  
Xianzhi Zeng ◽  
Kailai Deng ◽  
Masahiro Kurata ◽  
Jiahong Duan ◽  
Canhui Zhao

2020 ◽  
Vol 10 (4) ◽  
pp. 573-594 ◽  
Author(s):  
Shi Ye ◽  
Xiangang Lai ◽  
Ivan Bartoli ◽  
A. Emin Aktan

Author(s):  
Naoto Yoshida ◽  
Masahiro Sakano ◽  
Hideyuki Konishi ◽  
Takashi Fujii

Fatigue cracking in steel girder web penetration details is so dangerous that it can break steel girders. A one-meter-long crack was detected in Yamazoe Bridge in 2006. Since a number of highway bridges with such web penetration details may exist in Japan, it is of urgent importance to understand these fatigue-strength properties. However, few fatigue tests have been reported on steel girder web penetration details. The purpose of this study is to clarify fatigue behavior of steel girder web penetration details with a slit through fatigue tests of specimens with these details. We designed and fabricated girder specimens that have steel girder web penetration details, in which cross-beam bottom flanges are connected to each top or bottom surface of a slit by welding. First, we conducted static loading tests to understand the stress distributions around web penetration details. Second, we conducted fatigue tests to examine fatigue crack initiation and propagation behavior and fatigue strength.


Author(s):  
Chihiro Sakamoto ◽  
Masahiro Sakano ◽  
Hideyuki Konishi ◽  
Takashi Fujii

Fatigue cracking in steel girder web penetration details is so dangerous that it can break steel girders. Since a number of highway bridges have such web penetration details in Japan, it is of urgent importance to grasp these fatigue strength properties. In this study, we investigate stress reduction effects of three face attachment retrofit through fatigue tests using a large girder specimen with web penetration details where cross beam lower flanges are connected to the lower surface of a slot by welding. As a result, there is very little difference between two and three face attachments about stress reduction effects, while they are more effective than one face attachment. The upper side attachment is more effective than the lower side attachment, while both side attachment is best. Two and three face both side attachments can reduce about 40% of stress concentration, while two and three face upper side attachments can reduce 50– 60%.


2011 ◽  
Vol 16 (5) ◽  
pp. 597-611 ◽  
Author(s):  
Azadeh Alipour ◽  
Behrouz Shafei ◽  
Masanobu Shinozuka

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