Calculation of monolithic overpass based on real earthquake records
https://doi.org/10.52170/1815-9265_2024_71_82
Abstract
In order to improve the transport infrastructure of the Republic of Uzbekistan, they began to use the monolithic structure of bridges and overpasses. The article presents the calculation of a monolithic overpass with a length of 120 meters, located in the area of 8-point seismicity according to MSK-64 in the city of Jizzakh over the high-speed railway lines Tashkent-Samarkand (Republic of Uzbekistan). A numerical solution to the problem of seismic resistance of an overpass determines the change in its stress-strain state over time. The results of calculating a monolithic bridge under dynamic load based on records of real accelerograms of the Gazli (Uzbekistan) earthquake, with an intensity of more than 9 points on the MSK-64 scale, are presented. The results of calculations of changes in normal stress in the upper and lower parts of the span along the length of the bridge are analyzed. The calculations show that the bridge has a safety factor for a magnitude 9 earthquake. To ensure guaranteed seismic safety of bridge structures, it is necessary to carry out design calculations based on sets of records of earthquakes that have occurred that are close in dominant frequencies to the characteristics of the construction site.
About the Authors
I. Mirzaev
Tashkent State Transport University
Russian Federation
Russian Federation
Ibrahim Mirzaev, Professor of the Applied Mechanics Department, Tashkent State Transport University, Professor, Doctor of Physical and Mathematical Sciences
Tashkent
U. Z. Shermukhamedov
Tashkent State Transport University
Russian Federation
Russian Federation
Ulugbek Z. Shermukhamedov, Head of the Bridges and Tunnels Department, Professor, Doctor of Engineering
Tashkent
A. R. Abdullaev
Tashkent State Transport University
Russian Federation
Russian Federation
Abdurahim R. Abdullaev, Basic Doctoral Student of the Bridges and Tunnels Department
Tashkent
A. B. Karimova
Tashkent State Transport University
Russian Federation
Russian Federation
Anora B. Karimova, Senior Lecturer of the Bridges and Tunnels Department
Tashkent
M. M. Sobirova
Tashkent State Transport University
Russian Federation
Russian Federation
Mamura M. Sobirova, Basic Doctoral Student of the Bridges and Tunnels Department
Tashkent
References
1. Jancy A., Stolarski A., Zychowicz J. Experimental and Numerical Research of Post-Tensioned Concrete Beams // Materials. 2023. Vol. 16, No. 11. P. 4141.
2. Numerical shear of post-tensioned beams with inverted-U shaped reinforcements / M. Khatib, Z. Abou Saleh, O. Baalbaki, Z. Hamdan // Magazine of Civil Engineering. 2022. Vol. 110, No. 2. P. 11006.
3. Dinh P. T. Numerical modeling techniques and investigation into the flexural behavior of two way posttensioned concrete slabs with profiled steel sheeting // Structural Concrete. 2023. Vol. 24, No. 2. P. 2674–2698.
4. Menga A. Corrosion induced damages and failures of posttensioned bridges: A literature review //Structural Concrete. 2023. Vol. 24, No. 1. P. 84–99.
5. Zaki R. I. K., Risan H. K. Systematic review for behavior of post-tensioned concrete members with different tendon bonding conditions // Computational Engineering and Physical Modeling. 2022. Vol. 5, No. 1. P. 36–49.
6. Mohammed A. H., Taysi N. Modelling of bonded and unbonded post-tensioned concrete flat slabs under flexural and thermal loading // Structural Engineering and Mechanics. 2017. Vol. 62, No. 5. P. 595–606.
7. Piras S., Palermo A., Saiid Saiidi M. State-of-the-art of posttensioned rocking bridge substructure systems // Journal of Bridge Engineering. 2022. Vol. 27, No. 3. P. 03122001.
8. Dangol I., Pantelides C. P. Resilient posttensioned bridge bent with buckling restrained brace // Journal of Bridge Engineering. 2022. Vol. 27, No. 2. P. 04021107.
9. Dangol I., Pantelides C. P. Seismic analysis of posttensioned and hybrid bridge bents with buckling restrained braces // Journal of Bridge Engineering. 2023. Vol. 28, No. 2. P. 04022146.
10. Huang Y., Kang T. H. K. Modeling of sliding behavior of unbonded tendons in post-tensioned concrete members // ACI Structural Journal. 2018. Vol. 115, No. 4. P. 1153.
11. Cheng X., Zhang W., Liu B. Vertical seismic response of a box bridge strengthened with posttensioned, prestressed CFRP sheets // Australian Journal of Structural Engineering. 2019. Vol. 20, No. 2. P. 75–88.
12. Calculation of the stress-strain state of monolithic bridges on the action of real seismic impacts / U. Shermukhamedov, I. Mirzaev, A. Karimova, D. Askarova // E3S Web of Conferences. 2023. Vol. 401. P. 05080. https://doi.org/10.1051/e3sconf/202340105080.
13. Uzdin A., Prokopovich S. Some principles of generating seismic input for calculating structures // E3S Web of Conferences. 2019. Vol. 157. P. 06021 (2020).
14. Important feature of calculating bridges under seismic action / L. Smirnova, A. Uzdin, N. Polorotova, M. Freze // E3S Web of Conferences. 2020. Vol. 157. P. 06020.
15. Influence of the vertical earthquake component on the shear vibration of buildings on sliding foundations / I. Mirzaev, A. Yuvmitov, M. Turdiev, J. Shomurodov // E3S Web of Conferences. 2021. Vol. 264. P. 02022. https://doi.org/10.1051/e3sconf/202126402022.
16. Kosimov E., Mirzaev I., Bekmirzaev D. Comparison of the impacts of harmonic and seismic waves on an underground pipeline during the Gazli earthquake // IOP Conf. Series : Materials Science and Engineering. 2021. Vol. 1030. P. 012082. DOI 10.1088/1757-899X/1030/1/012082.
17. Shermukhamedov U. Z, Karimova A. B., Zakirov B. S. Calculation of continuous reinforced concrete bridges and overpasses inseismically // E3S Web of Conferences. 2023. Vol. 401. P. 01078.
18. Internet site for European strong-motion data / N. N. Ambraseys, P. Smit, J. Douglas [et al.] // Bollettino di Geofisica Teorica ed Applicata. 2004. Vol. 45 (3).
19. Study of the uplift of buried pipelines in liquefied soils based on the earthquake record / B. Mardonov, I. Mirzaev, N. Nishonov [et al.] // E3S Web of Conference. 2024. Vol. 515. P. 04009.
20. KMK 2.01.03-19. Construction in seismic areas. Tashkent; 2019. 111 p. (In Russ.).
21. ShNK 2.05.03-22. Bridges and pipes. Tashkent; 2023. 398 p. (In Russ.).
Review
For citations:
Mirzaev I., Shermukhamedov U.Z., Abdullaev A.R., Karimova A.B., Sobirova M.M. Calculation of monolithic overpass based on real earthquake records. Bulletin of Siberian State University of Transport. 2024;(4):82-91. (In Russ.) https://doi.org/10.52170/1815-9265_2024_71_82
Views:
6
Email this article 