Performance assessment of a concrete railway bridge by diagnostic load testing

2020 ◽  
Author(s):  
Ivan Duvnjak ◽  
Marko Bartolac ◽  
Domagoj Damjanović ◽  
Janko Košćak
Keyword(s):  
Performance Assessment ◽  
Load Testing ◽  
Railway Bridge ◽  
Diagnostic Load Testing

scholarly journals Monitoring and Diagnostic Load Testing of a Damaged Railway Bridge

2019 ◽  
Vol 5 ◽  
Author(s):  
Ivan Duvnjak ◽  
Domagoj Damjanović ◽  
Marko Bartolac ◽  
Marina Frančić Smrkić ◽  
Ana Skender
Keyword(s):  
Load Testing ◽  
Railway Bridge ◽  
Diagnostic Load Testing

Methodology for Diagnostic Load Testing

2019 ◽  
pp. 155-180
Author(s):  
Eva O. L. Lantsoght ◽  
Jonathan Bonifaz ◽  
Telmo Andres Sanchez ◽  
Devin K. Harris
Keyword(s):  
Load Testing ◽  
Diagnostic Load Testing

scholarly journals Performance Assessment of a Newly Constructed Skewed Half-Through Railway Bridge Using Integrated Sensing

2019 ◽  
Vol 24 (1) ◽  
pp. 04018107 ◽  
Author(s):  
Weiwei Lin ◽  
Liam J. Butler ◽  
Mohammed Z. E. B. Elshafie ◽  
Campbell R. Middleton
Keyword(s):  
Performance Assessment ◽  
Railway Bridge

scholarly journals TLS Measurement during Static Load Testing of a Railway Bridge

2019 ◽  
Vol 8 (1) ◽  
pp. 44 ◽  
Author(s):  
Pelagia Gawronek ◽  
Maria Makuch
Keyword(s):  
Laser Scanning ◽  
Static Load ◽  
Vertical Displacement ◽  
Load Test ◽  
Load Testing ◽  
Railway Bridge ◽  
Static Load Test ◽  
3D Data ◽  
Steel Railway Bridge ◽  
White Target

Terrestrial laser scanning (TLS) technology has become increasingly popular in investigating displacement and deformation of natural and anthropogenic objects. Regardless of the accuracy of deformation identification, TLS provides remote comprehensive information about the measured object in a short time. These features of TLS were why TLS measurement was used for a static load test of an old, steel railway bridge. The results of the measurement using the Z+F Imager 5010 scanner and traditional surveying methods (for improved georeferencing) were compared to results of precise reflectorless tacheometry and precise levelling. The analyses involved various procedures for the determination of displacement from 3D data (black & white target analysis, point cloud analysis, and mesh surface analysis) and the need to pre-process the 3D data was considered (georeferencing, automated filtering). The results demonstrate that TLS measurement can identify vertical displacement in line with the results of traditional measurements down to ±1 mm.

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