Crack Growth Prediction of Deck Plate-Stiffener Joints in Orthotropic Steel Bridge Decks

2013 ◽  
Vol 99 (8) ◽  
pp. 1571-1578 ◽  
Author(s):  
Johan Maljaars ◽  
David Gration ◽  
Edo Vonk ◽  
Frank van Dooren
Keyword(s):  
Crack Growth ◽  
Bridge Decks ◽  
Steel Bridge ◽  
Growth Prediction ◽  
Deck Plate

DETERMINING RESIDUAL STRESSES IN WELDED CONNECTIONS OF ORTHOTROPIC STEEL BRIDGE DECKS WITH A HOLE-DRILLING TECHNIQUE

2015 ◽  
Vol 2 (1) ◽  
Author(s):  
Wim Nagy ◽  
Philippe Van Bogaert ◽  
Hans De Backer
Keyword(s):  
Yield Strength ◽  
Residual Stresses ◽  
Experimental Test ◽  
Bridge Decks ◽  
Hole Drilling ◽  
Material Strength ◽  
Steel Bridge ◽  
Test Setup ◽  
Deck Plate ◽  
Drilling Technique

Manufacturing processes such as welding operations cause residual stresses that are present in most civil structures. They cause plastic deformations without any external loads and are therefore often overlooked during design. Nevertheless, residual stresses can have profound influences on material strength and fatigue life. This is also true for orthotropic steel bridge decks, which have many complex welding details. Because little is known about the distribution of residual stresses due to welding, a semi-destructive experimental test setup is developed for a stiffener-to-deck plate connection on an orthotropic steel bridge deck. In particular, the hole-drilling technique is used. With this experimental test setup, a clear distribution of the residuals stresses becomes visible. Residual stresses up to the yield strength can be found near the weld and up to 50% of the yield strength elsewhere. However, more research is needed to verify why the sign of the stresses is opposite to the expected stresses in the literature.

Durability design criteria for bituminous pavements on orthotropic steel bridge decks

1987 ◽  
Vol 14 (1) ◽  
pp. 41-48 ◽  
Author(s):  
Stefan Bild
Keyword(s):  
Composite Structures ◽  
Design Method ◽  
Bridge Decks ◽  
Design Criteria ◽  
Steel Bridge ◽  
Orthotropic Plates ◽  
Limit States ◽  
Durability Design ◽  
Deck Plate ◽  
Bituminous Pavements

Many inspections of the pavements of orthotropic steel bridge decks show longitudinal cracks above the connections of the deck plate to the main girders and ribs. By using a simplified model for analysing the behaviour of the pavement and comparing the theoretical results with damage records, the ultimate resistance of the pavement is defined, and minimum stiffness requirements for orthotropic decks are derived. These serviceability limit states have been included in a recent draft of the German steel road–bridge code DIN 18809.Theoretical studies of the material behaviour lead to proposals for the minimum strength requirements for bituminous pavements, which may be used in conjunction with the results of material tests. This procedure will improve the strength design of bituminous bridge pavements. Key words: bitumen, bridge decks, composite structures, design criteria, durability, limit design method, orthotropic plates, pavements, serviceability limits, specifications, steel.

scholarly journals EFFECT OF TIRE LOAD MODEL ON LONGITUDINAL SURFACE CRACK OF PAVEMENTS ON STEEL BRIDGE DECKS

2005 ◽  
Vol 10 ◽  
pp. 23-30 ◽  
Author(s):  
Takashi KOBAYASHI ◽  
Tatsuo NISHIZAWA ◽  
Yasuo KAJIKAWA
Keyword(s):  
Surface Crack ◽  
Bridge Decks ◽  
Steel Bridge ◽  
Load Model

Cement-Based Transition Layer for Orthotropic Steel Bridge Decks

2011 ◽  
Author(s):  
Xue-lian Li ◽  
Yu-liang Chen ◽  
Zhi-gang Zhou
Keyword(s):  
Transition Layer ◽  
Bridge Decks ◽  
Steel Bridge
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