Rehabilitation of bearings of a major earthquake damaged railway bridge

The Clarence River Rail Bridge is a 478 m long steel truss girder bridge located 40 Km north of Kaikoura. The cast iron fixed and guided pinned bearings of the bridge suffered significant damage during the November 2016 Kaikoura Earthquake, likely caused by vertical seismic accelerations in excess of 1g.Replacement of the damaged cast iron guided pinned bearings involved the design of new bespoke pinned steel bearings with modern stainless steel and approved sliding material (ASM) surfaces newly introduced to AS5100.4:2017.The use of modern bearing materials and established detailing principles have led to rehabilitating an earthquake damaged 80-year-old bridge with design and construction of the earthquake repairs completed in less than 12 months.

Download Full-text

Research on Radial Basis Function Network Application in Steel Truss Girder Bridge Damage Identification

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.536-537.352 ◽

2014 ◽

Vol 536-537 ◽

pp. 352-355

Author(s):

Zhong Hui Wang

Keyword(s):

Structural Damage ◽

Damage Identification ◽

Radial Basis Function Network ◽

New Method ◽

Structure Damage ◽

Steel Truss ◽

Bridge Damage ◽

Girder Bridge ◽

Steel Truss Girder ◽

Better Than

Damage alarm is an important step among structure damage identification. Its objective is to evaluate the structure health. the existing damage alarm methods are mostly based on BPNN without thinking over testing noise. Therefore, a new method based on hybrid algorithm RBFNN is proposed for structure damage alarm system in this paper. The experiment results of steel truss girder bridge show that the new method is better than BPNN for structural damage alarm.

Download Full-text

Steel Truss Girder Bridge Reinforcement Removing Phase Analysis of Stress Dynamic Monitoring

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.668.650 ◽

2013 ◽

Vol 668 ◽

pp. 650-655

Author(s):

Yang Zhou ◽

Jun Feng Shi ◽

Tian Qing Yu

Keyword(s):

Dynamic Monitoring ◽

Steel Girder ◽

Steel Truss Bridge ◽

Construction Procedure ◽

Simulating Calculation ◽

Steel Truss ◽

Contrast Analysis ◽

Girder Bridge ◽

Truss Bridge ◽

Steel Truss Girder

By taking a simple supported concrete-filled steel truss bridge as the research object in Guangzhou, some jobs have been done such as the simulating calculation and the real-time monitoring of side span steel girder during the jacking construction procedure, and contrast analysis was conducted between the calculating stress value and the measured stress value, which may draw a conclusion that the safety could be satisfied during the jacking construction procedure

Download Full-text

Optimization Design Method of Steel Truss Girder Bridge Reliability

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.243-249.1826 ◽

2011 ◽

Vol 243-249 ◽

pp. 1826-1829 ◽

Cited By ~ 1

Author(s):

Gang Yang ◽

Ai Feng Zhang ◽

Xin Kui Li

Keyword(s):

Optimization Design ◽

Design Method ◽

Ansys Software ◽

Reliability Design ◽

Steel Truss Bridge ◽

Steel Truss ◽

Bridge Reliability ◽

Girder Bridge ◽

Truss Bridge ◽

Steel Truss Girder

The research of optimization for steel truss bridge based on reliability theory is discussed by using optimization and reliability module in ANSYS software. The reliability design method is elucidated by comparing the results of common design with general optimization and reliability optimization.

Download Full-text