Identification of minute damage in composite bridge structures equipped with fiber optic sensors using the location of neutral axis and finite element analysis

2016 ◽  
Author(s):  
Xi Li ◽  
Branko Glisic
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Fiber Optic ◽  
Fiber Optic Sensors ◽  
Neutral Axis ◽  
Element Analysis ◽  
Bridge Structures ◽  
Composite Bridge

Finite element analysis of fiber-optic Fabry–Perot pressure sensors based on silicon diaphragms

2019 ◽  
Vol 58 (31) ◽  
pp. 8465
Author(s):  
Rongkun Wang ◽  
Longfei Xiao ◽  
Qi Li ◽  
Xiangang Xu ◽  
Xiufang Chen ◽  
...  
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Fiber Optic ◽  
Pressure Sensors ◽  
Element Analysis ◽  
Fabry Perot

Nonlinear finite element analysis for structural assessment of existing bridges: network manager experiences

2021 ◽  
Author(s):  
Johan de Boon ◽  
Marco A. Roosen ◽  
Dick G. Schaafsma ◽  
Max A. N. Hendriks
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Nonlinear Finite Element Analysis ◽  
Nonlinear Finite Element ◽  
Public Works ◽  
Sensitivity Analyses ◽  
Structural Safety ◽  
Element Analysis ◽  
Bridge Structures ◽  
Existing Bridges

<p>The Dutch Directorate-General for Public Works and Water Management (Rijkswaterstaat) is assessing its bridges as a part of the major renovation and replacement task of bridge-structures in the Netherlands. For assessments it appears that calculations show that an increasing number of existing bridges no longer comply with current assessment standards or are becoming restricted in their functionality. Complete renovation is costly, results in disruption of traffic, and is not sustainable. The Eurocode permits to demonstrate sufficient safety using a nonlinear finite element analysis (NLFEA). NLFEA offers a possibility to demonstrate additional structural safety of the existing bridge-structures.</p><p>The challenge is to gain confidence that the approach gives reliable results for the structural safety of the considered bridge. Moreover, experience learns that NLFEA demands many choices to be made by Rijkswaterstaat as a client and will not always lead to unambiguous results. These choices concern modelling aspects, applied safety format, load positions, and the required sensitivity analyses. Another question is what conclusions, based on the obtained results of this analysis, can be drawn for similar structures.</p><p>This paper shows how Rijkswaterstaat has dealt with these challenges with case 'Peddemors' and what lessons are learned, all from the viewpoint of a client.</p>

Finite Element Analysis on Dynamic Response of Bridge Structures under Moving Loads with Uniform Speed

2011 ◽  
Vol 90-93 ◽  
pp. 1015-1018
Author(s):  
Wen Zhang ◽  
De Can Yang
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Dynamic Response ◽  
Moving Load ◽  
Moving Loads ◽  
Element Analysis ◽  
Simply Supported Beam ◽  
Simply Supported ◽  
The Finite Element Analysis ◽  
Bridge Structures

The dynamic response of simple supported beam under the moving load is analyzed. The finite element analysis software MIDAS is used to simulate the process of when the uniform constant force moving through the simply supported beam. The first 5 natural frequencies of simply supported beam are obtained with the modal analysis and compared with the analytical solution. The feasibility of the finite element method is verified.

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