Imperial College London
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Dr Ana M Ruiz-Teran

Faculty of Engineering, Department of Civil and Environmental Engineering

Senior Lecturer
 
 
 
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Contact

 

+44 (0)20 7594 6005a.ruiz-teran

 
 
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Assistant

 

Ms Ruth Bello +44 (0)20 7594 6040

 
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Location

 

324Skempton BuildingSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Lyu:2019:10.1016/j.engstruct.2019.03.059,
author = {Lyu, Z and Malaga, Chuquitaype C and Ruiz-Teran, A},
doi = {10.1016/j.engstruct.2019.03.059},
journal = {Engineering Structures},
pages = {589--604},
title = {Design of timber-concrete composite (TCC) bridges with under-deck stay cables},
url = {http://dx.doi.org/10.1016/j.engstruct.2019.03.059},
volume = {189},
year = {2019}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - Timber-concrete composite (TCC) bridges represent an attractive structural system due to the synergistic use of its wood and reinforced-concrete constituent components. However, their relatively large flexibility limits their applica- tion for larger spans. This paper presents an alternative solution for TCC bridges involving the implementation of post-tensioned under-deck tendons. Based on a series of design and numerical studies, the advantages of the newly proposed system for 30-m, 60-m and 90-m spans are evaluated. This paper shows that the incorporation of under-deck post-tensioning changes the critical limit states governing the design of TCC bridges, and allows for a significant increase in their slendernesses at medium and long spans. Timber’s shear-deformation contribution to the vertical deflection of TCC bridges is significant and should be accounted for, especially when the span/depth ratio l/h is less than 20. However, this additional deformation can be neglected when stay cables are implemented, especially for bridges with medium and long spans. In order to achieve a more efficient structure, it is proposed that shear connection with an efficiency coefficient, γ, greater than 0.8 be used. Finally, the best practical eccentricity of the under-deck tendons and the best location of the deviators are determined on the basis of parametric analyses.
AU  - Lyu,Z
AU  - Malaga,Chuquitaype C
AU  - Ruiz-Teran,A
DO  - 10.1016/j.engstruct.2019.03.059
EP  - 604
PY  - 2019///
SN  - 0141-0296
SP  - 589
TI  - Design of timber-concrete composite (TCC) bridges with under-deck stay cables
T2  - Engineering Structures
UR  - http://dx.doi.org/10.1016/j.engstruct.2019.03.059
UR  - https://www.sciencedirect.com/science/article/pii/S0141029618338665
UR  - http://hdl.handle.net/10044/1/69560
VL  - 189
ER  -
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