Development of the hot-spot stress sensor and application to orthotropic steel deck

2012 ◽  
pp. 1393-1398
Author(s):  
T Uesugi ◽  
S Fujita ◽  
S Tsukamoto ◽  
T Yamagami ◽  
M Sakano
Keyword(s):  
Hot Spot ◽  
Hot Spot Stress ◽  
Stress Sensor ◽  
Orthotropic Steel Deck ◽  
Steel Deck

scholarly journals A Numerical Evaluation of Structural Hot-Spot Stress Methods in Rib-To-Deck Joint of Orthotropic Steel Deck

2020 ◽  
Vol 10 (19) ◽  
pp. 6924
Author(s):  
Nouman Iqbal ◽  
Heng Fang ◽  
Ahsan Naseem ◽  
Muhammad Kashif ◽  
Hans De Backer
Keyword(s):  
Hot Spot ◽  
Evaluation Methods ◽  
Single Element ◽  
International Institute ◽  
Hot Spot Stress ◽  
Shell Elements ◽  
Orthotropic Steel Deck ◽  
Deck Plate ◽  
Stress States ◽  
Steel Deck

This study numerically investigates the limitations of structural hot-spot stress (SHSS) methods and proposes a guideline for the calculation of hot-spot stresses, which can be used for the better evaluation of fatigue-related problems. Four different SHSS evaluation methods have been applied to the rib-to-deck (RD) welded joint in orthotropic steel deck (OSD). These methods are used to calculate SHSS at this critical joint utilizing finite element analyses (FEA) based software Siemens NX.12. The limitations and the accuracy of these methods have been observed under different element types and meshing techniques. Moreover, the effect of the nodal-averaging feature is being studied. Two types of governing stresses are produced by the application of Eurocode fatigue load model-4. Essentially, the bending in deck-plate produces highly non-linear stress at the deck-toe, and the membrane effect in rib-plate generates linear stress at the rib-toe. Guidelines are proposed considering different parameters on these two stress states by applying SHSS evaluation methods. In comparison to other SHSS approaches, the International Institute of Welding (IIW) quadratic stress extrapolation (QSE) method shows better results for solid single-element, and the American Society of Mechanical Engineers (ASME) through thickness stress linearization (TTSL) method stands out in solid cubic-mesh technique. In general, shell elements have more consistent SHSS results as compared to solid elements for both stress states.

Hot spot stress investigation on rib-to-deck-to-floor beam connections in UHPC reinforced OSDs

2021 ◽  
Vol 179 ◽  
pp. 106517
Author(s):  
Bin Cheng ◽  
Hesham Abdelbaset ◽  
Liang Tian ◽  
Hai-Ting Li ◽  
Qingtian Su
Keyword(s):  
Hot Spot ◽  
Hot Spot Stress

Virtual Monitoring of orthotropic steel deck using bridge weigh-in-motion algorithm: Case study

2018 ◽  
Vol 18 (2) ◽  
pp. 610-620 ◽  
Author(s):  
Longwei Zhang ◽  
Hua Zhao ◽  
Eugene J OBrien ◽  
Xudong Shao
Keyword(s):  
Field Tests ◽  
Life Assessment ◽  
Dynamic Strain ◽  
Orthotropic Steel Deck ◽  
Remaining Service Life ◽  
Fatigue Life Assessment ◽  
Weigh In Motion ◽  
Gross Vehicle Weight ◽  
Bridge Weigh In Motion ◽  
Steel Deck

This article outlines a Virtual Monitoring approach for fatigue life assessment of orthotropic steel deck bridges. Bridge weigh-in-motion was used to calculate traffic loads which were then used to calculate “virtual” strains. Some of these strains were checked through long-term monitoring of dynamic strain data. Field tests, incorporating calibration with pre-weighed trucks and monitoring the response to regular traffic, were conducted at Fochen Bridge, which has an orthotropic steel deck and is located in Foshan City, China. In the calibration tests, a 45-t 3-axle truck ran repeatedly across Lane 2, the middle lane in a 3-lane carriageway. The results show that using an influence surface to weigh vehicles can improve the accuracy of the weights and, by inference, of remaining service life calculations. The most fatigue-prone position was found to be at the cutout in the diaphragms. Results show that many vehicles are overweight—the maximum gross vehicle weight recorded was 148 t, nearly 3.6 times heavier than the fatigue design truck.

16.27: Fabrication activities and quality aspects of the Third Bosphorus Bridge orthotropic steel deck

ce/papers ◽  
2017 ◽  
Vol 1 (2-3) ◽  
pp. 4256-4265
Author(s):  
Carmine Molinaro ◽  
Roberto Sorge ◽  
Gennaro Fiscina
Keyword(s):  
Orthotropic Steel Deck ◽  
The Third ◽  
Quality Aspects ◽  
Steel Deck

scholarly journals Field measurement and fatigue assessment of orthotropic steel deck with asphalt pavement.

1997 ◽  
pp. 161-171 ◽  
Author(s):  
Masanori Iwasaki ◽  
Koh Nagata ◽  
Takehiro Nishikawa ◽  
Tatsuya Ojio ◽  
Kentaro Yamada
Keyword(s):  
Field Measurement ◽  
Asphalt Pavement ◽  
Fatigue Assessment ◽  
Orthotropic Steel Deck ◽  
Steel Deck

Experimental and numerical characterization of a membrane material for orthotropic steel deck bridges: Part 2

2008 ◽  
Vol 44 (9-10) ◽  
pp. 580-594 ◽  
Author(s):  
X. Liu ◽  
T.O. Medani ◽  
A. Scarpas ◽  
M. Huurman ◽  
A.A.A. Molenaar
Keyword(s):  
Membrane Material ◽  
Orthotropic Steel Deck ◽  
Numerical Characterization ◽  
Steel Deck
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