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

scholarly journals Fatigue Reliability Assessment of Orthotropic Bridge Decks under Stochastic Truck Loading

2016 ◽  
Vol 2016 ◽  
pp. 1-10 ◽  
Author(s):  
Yang Liu ◽  
Xinhui Xiao ◽  
Naiwei Lu ◽  
Yang Deng
Keyword(s):  
Bridge Decks ◽  
Volume Growth ◽  
Reliability Assessment ◽  
Element Model ◽  
Traffic Volume ◽  
Traffic Load ◽  
Steel Bridge ◽  
Fatigue Reliability ◽  
Load Model ◽  
Gross Vehicle Weight

A steady traffic growth has posed a threat to the fatigue safety of existing bridges. Uncertainties in traffic flows add to the challenge of an accurate fatigue safety assessment. This article utilizes a stochastic traffic load model to evaluate the fatigue reliability of orthotropic steel bridge decks. The traffic load model is simulated by site-specific weigh-in-motion measurements. A response surface method is presented to solve the time-consuming problem caused by hotspot stress simulations in the finite element model. Applications of the stochastic traffic load model for probabilistic modeling and fatigue reliability assessment are demonstrated in the case study of a steel box-girder bridge. Numerical results indicate that the growth rate of the gross vehicle weight leads to a rapid decrease of the fatigue reliability in comparison to the traffic volume growth. Even though the traffic volume growth is rapid, the control of overloaded trucks in comparison to the traffic volume is an effective way to ensure the fatigue safety of the steel bridges.

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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