scholarly journals DEVELOPMENT OF AN EXPERIMENTAL SYSTEM FOR FATIGUE-CRACKING FROM WELD ROOTS BETWEEN DECK PLATE AND U-RIB IN ORTHOTROPIC STEEL DECKS

2008 ◽  
Vol 64 (2) ◽  
pp. 297-302 ◽  
Author(s):  
Shigenobu KAINUMA ◽  
Satoshi ONOUE ◽  
Kenichi MIURA ◽  
Susumu INOKUCHI ◽  
Atsunori KAWABATA ◽  
...  
Keyword(s):  
Fatigue Cracking ◽  
Experimental System ◽  
Deck Plate ◽  
Orthotropic Steel Decks

Strengthening of steel decks for cable-stayed bridge using ultra-high performance concrete: A case study

2020 ◽  
Vol 23 (16) ◽  
pp. 3373-3384
Author(s):  
Lei Wang ◽  
Xiaochao Su ◽  
Yafei Ma ◽  
Ming Deng ◽  
Jianren Zhang ◽  
...  
Keyword(s):  
High Performance ◽  
High Performance Concrete ◽  
Fatigue Cracking ◽  
Strengthening Effect ◽  
Steel Bridge ◽  
Ultra High Performance Concrete ◽  
Cable Stayed Bridge ◽  
Local Stresses ◽  
Orthotropic Steel Decks ◽  
Strengthening Method

Fatigue cracking induced by vehicle load is a prevalent problem in orthotropic steel decks. In addition, pavement debonding in steel bridge decks is another familiar issue resulting from low slip resistance in the faying surface between the steel and asphalt concrete. The present study proposed a strengthening method that uses ultra-high performance concrete to stiffen a repeatedly maintained cable-stayed bridge in order to help address these two problems. The existing issues of the real bridge and the corresponding causes were investigated. Following this, an ultra-high performance concrete paving system was designed to improve the stiffness of the orthotropic steel decks. For this paving system, a 45-mm ultra-high performance concrete layer was connected to the deck by welded shear studs. The local stresses at the typical vulnerable fatigue cracking points were determined by means of a finite element model and of a field loading test to evaluate the strengthening effect. The results showed that this strengthening method can prevent the propagation of fatigue cracks. The local stresses of the U-ribs and diaphragms were reduced by 45.4% and 40.0%, respectively. The repaired bridge has sufficient resistance against fatigue cracking based on the in situ observations.

scholarly journals FATIGUE ASSESSMENT FOR WELD BETWEEN DECK PLATE AND U-RIB IN ORTHOTROPIC STEEL DECKS WITH CONSIDERATION OF PAVEMENT PROPERTIES

2010 ◽  
Vol 66 (1) ◽  
pp. 79-91 ◽  
Author(s):  
Susumu INOKUCHI ◽  
Hironori ISHII ◽  
Tsutomu ISHIGAKI ◽  
Hirofumi MAENO ◽  
Takanori SUMI ◽  
...  
Keyword(s):  
Fatigue Assessment ◽  
Deck Plate ◽  
Orthotropic Steel Decks

Welding residual stress in roots between deck plate and U-rib in orthotropic steel decks

Measurement ◽  
2016 ◽  
Vol 92 ◽  
pp. 475-482 ◽  
Author(s):  
Shigenobu Kainuma ◽  
Young-Soo Jeong ◽  
Muye Yang ◽  
Susumu Inokuchi
Keyword(s):  
Residual Stress ◽  
Welding Residual Stress ◽  
Deck Plate ◽  
Orthotropic Steel Decks

Fatigue assessment of an existing orthotropic steel deck to comply with future traffic intensity

2019 ◽  
Author(s):  
Wim Nagy ◽  
Glenn Thierens ◽  
Hendrik Blontrock ◽  
Hans De Backer ◽  
Philippe Van Bogaert ◽  
...  
Keyword(s):  
Bridge Management ◽  
Temperature Dependent ◽  
Long Span Bridges ◽  
Long Span ◽  
Fatigue Damage Accumulation ◽  
Deck Plate ◽  
Longitudinal Stiffeners ◽  
Load Carrying ◽  
Web Stiffeners ◽  
Orthotropic Steel Decks

<p>Orthotropic Steel Decks (OSDs) are widely used in long span bridges because of their extremely light weight when compared to their load carrying capacity. These deck types typically consist of a grillage of closed trapezoidal longitudinal stiffeners and transverse web stiffeners, welded to a deck plate. As a result, fatigue problems occur due to the extensive use of complex welded connections. Unfortunately, fatigue effects have often been overlooked during design, which was also the case for an important multiple span box girder viaduct in Belgium (1978).</p><p>Due to a renovation program of the ring road around Brussels, the number of traffic lanes on the viaduct should be extended from three to four. As a result, questions have been raised about the current structural health of the OSD due to fatigue and future fatigue damage accumulation. Therefore, extensive FEM analyses have been performed, taking into account various parameters such as increased traffic volume and accompanying axle loads, historical positions of the heavy lanes, historical road pavements and their temperature-dependent load spreading effects. In conclusion, accurate fatigue damages have been determined for all fatigue details. Therefore, focused inspections and design solutions can be provided, resulting in a durable bridge management for the next 60 years.</p>

Development of a fatigue experiment for the stiffener-to-deck plate connection in Orthotropic Steel Decks

2017 ◽  
Vol 17 (4) ◽  
pp. 1353-1364 ◽  
Author(s):  
Wim Nagy ◽  
Benjin Wang ◽  
Bohumil Culek ◽  
Philippe Van Bogaert ◽  
Hans De Backer
Keyword(s):  
Deck Plate ◽  
Orthotropic Steel Decks ◽  
Plate Connection ◽  
Fatigue Experiment
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