A study of longer service life of a multispan simple steel railway bridge

2010 ◽  
pp. 543-543
Author(s):  
Y Niwa ◽  
T Nakayama ◽  
K Matsumoto ◽  
M Sakano ◽  
A Koshiba
Keyword(s):  
Service Life ◽  
Railway Bridge ◽  
Steel Railway Bridge

Monitoring and enhanced fatigue evaluation of a steel railway bridge

2010 ◽  
Vol 32 (3) ◽  
pp. 854-863 ◽  
Author(s):  
John Leander ◽  
Andreas Andersson ◽  
Raid Karoumi
Keyword(s):  
Railway Bridge ◽  
Steel Railway Bridge ◽  
Fatigue Evaluation

scholarly journals Service Life Prediction of Reinforced Concrete in a Sea-Crossing Railway Bridge in Jiaozhou Bay: A Case Study

2019 ◽  
Vol 9 (17) ◽  
pp. 3570 ◽  
Author(s):  
Zhe Li ◽  
Zuquan Jin ◽  
Tiejun Zhao ◽  
Penggang Wang ◽  
Lixiao Zhao ◽  
...  
Keyword(s):  
Reinforced Concrete ◽  
Service Life ◽  
Reliability Index ◽  
Life Prediction ◽  
Jiaozhou Bay ◽  
Chloride Diffusion ◽  
Chloride Diffusion Coefficient ◽  
Railway Bridge ◽  
Box Girder ◽  
The Mean

Reinforced bar corrosion induced by chloride ingression is one of the most significant threats to the durability of concrete structures in marine environments. The concrete cover thickness, compressive strength, chloride diffusion coefficient, and surface defects of reinforced concrete in the Jiaozhou Bay sea-crossing railway bridge were measured. The temperature and relative humidity in the concrete and the loading applied onto the reinforced concrete were monitored. Based on the DuraCrete model, a revised model for the service life prediction of concrete structures was established, considering the effects of temperature and loading on the chloride diffusion coefficient. Further, the reliability indexes of the reinforced concrete box girder, pier, and platform, located in the marine and land sections, in relation to service lives lasting various numbers of years, were calculated. The measured and calculated results show that the mean cover thicknesses of concrete piers in the marine and land sections are 52 mm and 36 mm, respectively, and the corresponding standard deviations are 5.21 mm and 3.18 mm, respectively. The mean compressive strengths of concrete in the marine and land sections are 56 MPa and 46 MPa, respectively. The corresponding standard deviations are 2.45 MPa and 2.67 MPa, respectively. The reliability indexes of the reinforced concrete box girder and platform in the marine section, under the condition of a service life of 100 years, are 1.81 and 1.76, respectively. When the corrosion-resistant reinforced bar was used in the pier structure in the marine section, its reliability index increased to 2.01. Furthermore, the reliability index of the reinforced concrete damaged by salt fog in the land section was 1.71.

scholarly journals Experimental Analysis of Stiffness of the Riveted Steel Railway Bridge Deck Members’ Joints

2014 ◽  
Vol 10 (2) ◽  
pp. 105-110
Author(s):  
Jozef Gocál ◽  
Richard Hlinka ◽  
Jozef Jošt ◽  
František Bahleda
Keyword(s):  
Stress Response ◽  
Experimental Analysis ◽  
Bridge Deck ◽  
Bending Stiffness ◽  
Traffic Load ◽  
Structural Members ◽  
Railway Bridge ◽  
The Real ◽  
Steel Railway Bridge ◽  
Main Girder

Abstract The paper deals with the real behaviour of the riveted steel railway bridge deck members’ connections with respect to their bending stiffness. Attention is paid to the stringer-to-cross beam connection as well as the cross beam-to-main girder connection. The stiffness of the two connections is investigated on the basis of evaluation of the experimentally determined stress response of the observed structural members to the actual traffic load on an existing railway bridge.

scholarly journals Assessment of an Old Steel Railway Bridge Using Dynamic Tests.

2017 ◽  
Vol 199 ◽  
pp. 3053-3058 ◽  
Author(s):  
Tomáš Plachý ◽  
Michal Polák ◽  
Pavel Ryjáček
Keyword(s):  
Railway Bridge ◽  
Dynamic Tests ◽  
Steel Railway Bridge
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