The Applicability Study on the FRP-Concrete Composite Bridge Deck for Cable-Stayed Bridges

2012 ◽  
Vol 525-526 ◽  
pp. 593-596
Author(s):  
Sung Tae Kim ◽  
Sung Yong Park ◽  
Keun Hee Cho ◽  
Jeong Rae Cho ◽  
Byung Suk Kim
Keyword(s):  
Performance Test ◽  
Bridge Deck ◽  
Structural Performance ◽  
Construction Technology ◽  
Test Results ◽  
Cable Stayed Bridge ◽  
Composite Bridge ◽  
Support Conditions ◽  
Composite Bridge Deck ◽  
Cable Stayed Bridges

This study is related to the FRP-concrete composite bridge deck for cable-stayed bridges developed by the Korea Institute of Construction Technology since 2007. This deck disposes a FRP panel at the bottom and is orthotropic owing to its fabrication through pultrusion process. In the cable-stayed bridge applying precast deck, support conditions occur at the cross beam and edge girder. Therefore, need is to verify the performances in the longitudinal and transverse directions when applying the orthotropic deck to cable-stayed bridges. Accordingly, specimens enabling to verify the performance in each direction are fabricated and subject to structural performance test. Based on the test results, the serviceability and applicability of the FRP-concrete composite deck to cable-stayed bridges are evaluated.

scholarly journals Vibration-Based Damage Detection of a Steel-Concrete Composite Slab Using Non-Model-Based and Model-Based Methods

2020 ◽  
Vol 2020 ◽  
pp. 1-20
Author(s):  
Liang Fang ◽  
Yun Zhou ◽  
Yunzhong Jiang ◽  
Yilin Pei ◽  
Weijian Yi
Keyword(s):  
Loading Condition ◽  
Bridge Deck ◽  
Service Condition ◽  
Physical Parameters ◽  
Fe Model ◽  
Test Results ◽  
Model Based ◽  
Modal Flexibility ◽  
Composite Bridge ◽  
Composite Bridge Deck

This paper presents vibration-based damage detection (VBDD) for testing a steel-concrete composite bridge deck in a laboratory using both model-based and non-model-based methods. Damage that appears on a composite bridge deck may occur either in the service condition or in the loading condition. To verify the efficiency of the dynamic test methods for assessing different damage scenarios, two defect cases were designed in the service condition by removing the connection bolts along half of a steel girder and replacing the boundary conditions, while three damage cases were introduced in the loading condition by increasing the applied load. A static test and a multiple reference impact test (MRIT) were conducted in each case to obtain the corresponding deflection and modal data. For the non-model-based method, modal flexibility and modal flexibility displacement (MFD) were used to detect the location and extent of the damage. The test results showed that the appearance and location of the damage in defect cases and loading conditions can be successfully identified by the MFD values. A finite element (FE) model was rationally selected to represent the dynamic characteristics of the physical model, while four highly sensitive physical parameters were rationally selected using sensitivity analysis. The model updating technique was used to assess the condition of the whole deck in the service condition, including the boundary conditions, connectors, and slab. Using damage functions, Strand7 software was used to conduct FE analysis coupled with the MATLAB application programming interface to update multiple physical parameters. Of the three different FE models used to simulate the behavior of the composite slab, the calculated MFD of the shell-solid FE model was almost identical to the test results, indicating that the performance of the tested composite structure could be accurately predicted by this type of FE model.

Static and sustained loading behavior of a basalt FRP shell–concrete composite bridge deck: An experimental and numerical study

2021 ◽  
Vol 230 ◽  
pp. 111689
Author(s):  
Zheqi Peng ◽  
Xin Wang ◽  
Lining Ding ◽  
Yizhi Yang ◽  
Zhishen Wu ◽  
...  
Keyword(s):  
Bridge Deck ◽  
Numerical Study ◽  
Sustained Loading ◽  
Composite Bridge ◽  
Composite Bridge Deck
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