INFLUENCE ANALYSIS OF NATURAL VIBRATION CHARACTERISTICS OF STEEL BOX GIRDER WITH SINGLE CABLE FACE AND LARGE CANTILEVER
DOI:
https://doi.org/10.14311/CEJ.2022.04.0049Keywords:
Cable-stayed bridge, Natural vibration characteristics, Vibration mode, Steel box girderAbstract
In recent years, there have been cases of strengthening bridge structures with polyurethane cement mortar. To further explore the properties of polyurethane materials, the effects of emery, lime, quartz sand and cement on the mechanical properties of polyurethane powder composites are studied by three-point flexural test. In the flexural test, the polyurethane cement composite formed a control group by changing the content of polyester polyol. The flexural strength and ductility are improved to a certain extent due to the addition of polyester polyol.The average flexural strength of other polyurethane powder composites such as polyurethane emery test block is 45.1 MPa and the corresponding strain is 6203 με, the average flexural strength of polyurethane lime test block is 33.4 MPa and the corresponding strain is 6470 με, the average flexural strength of polyurethane quartz sand test block is 49.23 MPa and the corresponding strain is 7521 με. The results show that the flexural strength of polyurethane emery material and polyurethane quartz sand material is higher than that of polyurethane cement, which can be used to replace cement to a certain extent to reduce the cost of polyurethane composite material.
Downloads
References
Jang, S. , Jo, H. , Cho, S. , Mechitov, K. , Rice, J. A. , & Sim, S. H. , et al. 2010. Structural health monitoring of a cable stayed bridge using smart sensor technology: deployment and evaluation. smart struct syst 6(5-6):439-459. Smart Structures & Systems, 6(5_6), 439-459.
Cho, S. , Park, J. , Jung, H. , Yun, C. , & Seo, J. . 2010. Structural health monitoring of a cable-stayed bridge using acceleration data via wireless smart sensor network.
Ju, Y. Z. , Liu, W. C. , Bai, J. F. , & Chen, J. H. . 2010. Nonlinear static analysis of cable-stayed bridge. IEEE.
Tang, E. , & Hong, H. . 2010. Numerical simulation of a cable-stayed bridge response to blast loads, part i: model development and response calculations. Engineering Structures, 32(10), 3180-3192.
Hong, H. , & Tang, E. . 2010. Numerical simulation of a cable-stayed bridge response to blast loads, part ii: damage prediction and frp strengthening. Engineering Structures, 32(10), 3193-3205.
Yao, C. Y. , Pu, Q. H. , & Yao, Y. D. . 2014. Mechanical features of cable-girder anchorage for long-span railway cable-stayed bridge with steel box girders. Applied Mechanics & Materials, 587-589, 1391-1394.
Jo, H. , Sim, S. H. , Mechitov, K. A. , Kim, R. , Li, J. , & Moinzadeh, P. , et al. 2011. Hybrid wireless smart sensor network for full-scale structural health monitoring of a cable-stayed bridge. Proceedings of Spie the International Society for Optical Engineering, 7981, 798105-798105-15.
Hou, S. B. , Amp, X. R. , & Corporation, B. C. . 2014. Mechanical analysis on large-span cable-stayed bridge under moving load. Transportation Standardization.
Xu, F. , Wang, X. , & Wu, H. . 2012. Inspection method of cable-stayed bridge using magnetic flux leakage detection: principle, sensor design, and signal processing. Journal of Mechanical Science and Technology, 26(3), 661-669.
Park, J. W. , Jung, H. J. , Jo, H. , & Spencer, B. F. . 2012. Feasibility study of micro-wind turbines for powering wireless sensors on a cable-stayed bridge. Energies, 5(12), 3450-3464.
Dai, Gong-lian, YAN, & Bin, et al. 2012. Longitudinal forces of continuously welded track on high-speed railway cable-stayed bridge considering impact of adjacent bridges. Journal of Central South University.
Ho, D. D. , Lee, P. Y. , Nguyen, K. D. , Hong, D. S. , Lee, S. Y. , & Kim, J. T. , et al. 2012. Solar-powered multi-scale sensor node on imote2 platform for hybrid shm in cable-stayed bridge. Smart Structures & Systems, 9(2), 145-164.
Hikami, Y. . 2010. Rain vibrations of cables in cable-stayed bridge. Journal of Wind Engineering, 1986(27), 17-28.
Loh, C. H. , & Chang, C. M. . 2010. Vibration control assessment of asce benchmark model of cable‐stayed bridge. Structural Control & Health Monitoring, 13(4), 825-848.
Cho, S. , Jang, S. A. , Jo, H. , Mechitov, K. , & Seo, J. . 2010. Structural health monitoring system of a cable-stayed bridge using a dense array of scalable smart sensor network. Proceedings of SPIE - The International Society for Optical Engineering.
Downloads
Published
Issue
Section
License
Copyright (c) 2022 Stavební obzor - Civil Engineering Journal
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
Authors who publish with this journal agree to the following terms:
- Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
- Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
- Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).
¨
