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Stress state of reinforced concrete walls of grain silos subjected to static and thermal actions – in situ tests and numerical analysis
DOI:
https://doi.org/10.24425/ace.2025.156181Abstract
In used reinforced concrete grain silos, failures occur (e.g., increased cracking of reinforced concrete walls). These failures may be caused by overloading of the chamber structure due to a sudden drop in ambient temperature throughout the day. These daily drops in ambient temperature cause thermal stresses in the silo shell. Additional thermal stresses in the silo are caused by the interaction of the wall and the bulk material stored within the silo. This results in additional tensile stresses in the cross-sections of the silo chamber wall, combined with bending. This paper presents the results of in situ studies of early winter temperature field distributions in a grain elevator at the Podlaskie Grain Plant in Białystok. A specialized prototype SensoNet telemetry system was used for the on-site tests, enabling continuous monitoring of operating silo batteries and recording physical quantities such as deformation and temperature. The measured variable temperature fields on the surface of the silo chambers were used to determine nonlinear temperature distributions across the thickness of the reinforced concrete walls in the grain silo battery using the finite difference method. Numerical calculations of four interlocking grain silos subjected to static (Janssen pressure of bulk material) and thermal loads were performed using the finite element method. Analysis of the numerical calculation results (FEM) demonstrates the unfavorable effects of thermal and static load coupling in the form of increases in latitudinal tensile stresses and bending moments in the reinforced concrete walls of the grain silo batteries.References
[1] P. Martens, Silo-Handbuch. Wilhelm Ernst & Sohn. Berlin, 1988.
[2] S.S. Safarian S.S. and E.C. Harris, “Schadensursachen an Stahlbetonsilos in den USA”, Beton- und Stahlbetonbau, vol. 86, no. 2, pp. 35-37, 1991, doi: 10.1002/best.199100090.
[3] L. Runkiewicz, “Analysis of hazards, failures and disasters of reinforced concrete tanks and silos”, Przegląd Budowlany, no. 4, pp. 75-79, 2012 (in Polish).
[4] H. Bayat, M. Chalecki, A. Leśniewska, M. Maj, J. Rybak, and A. Ubysz, “The cyclic load effect on the elasticity and plasticity deformation of high-strength reinforced concrete elements”, Archives of Civil and Mechanical Engineering, vol. 24, no. 2, art. no. 135, 2024, doi:10.1007/s43452-023-00855-9.
[5] A. Ramirez, J. Garcia-Toment, and A. Tascon, “Experimental determination of self-heating and selfignition risks associated with the dusts of agricultural materials commonly stored in silos”, Journal of Hazardous Materials, vol. 175, no. 1-3, pp. 920-927, 2010, doi:10.1016/j.jhazmat.2009.10.096.
[6] PN-EN 1990:2004 Eurocode. Basis of structural design. PKN, 2004 (in Polish).
[7] L. Runkiewicz and P. Lewiński, “Diagnostics, reinforcement and monitoring of reinforced and prestressed concrete tanks for bulk materials and liquids”, Przegląd Budowlany, no. 10, pp. 25-32, 2014 (in Polish).
[8] L. Runkiewicz, Principles of safety assessment and reinforcement of reinforced concrete silos. Instrukcje, Wytyczne, Poradniki ITB, no. 366. Warszawa: Instytut Techniki Budowlanej, 2000 (in Polish).
[9] K. Kłos, G. Adamczewski, P.Woyciechowski, and P. Łukowski, “Carbonation of concrete cover of reinforcement as a cause of loss of durability of structures”, Archives of Civil Engineering, vol. 69, no. 1, pp. 119-129, 2023, doi: 10.24425/ace.2023.144163.
[10] PN-EN 1991-4:2008 Eurocode 1. Actions on structures. Part 4: Silos and tanks. PKN, 2008 (in Polish).
[11] M. Maj and A. Ubysz, Computational models for determining silo wall displacements caused by dry friction. Oficyna Wydawnicza Politechniki Wrocławskiej, 2020.
[12] F. Askifi, H. Hammadeh, A. Ubysz, and M. Maj, “Numerical modeling of wall pressure in silo with and without insert”, Studia Geotechnica et Mechanica, 2021, vol. 43, no. 1, pp. 22-33, 2021, doi: 10.2478/sgem-2020-0009.
[13] P. Anderson, Temperature stresses in steel grain-storage tanks. Civil Engineering – ASCE, vol. 36, no. 1, 1966.
[14] O.F. Theimer, Bersten von Stahlsilos bei tiefen Temperaturen. Der Bauingenieur, vol. 42, no. 3, pp. 102-105, 1967.
[15] A. Łapko, J. Kołłątaj, M. Gnatowski, J.A. Prusiel, R. Sokołowski, W. Konopacki, and J. Malesza, Application of radio telemetry to the monitoring and testing of silo structures. Final Report on the Research Project. (Grant No 8 T07E 002 21). Politechnika Białostocka, 2003 (in Polish).
[16] El H. Bartali and F.J. Hatfield, “Forces in cylindrical grain silos caused by decreasing ambient temperature”, ACI Structural Journal, vol. 87, no. 1, pp. 108-116, 1990.
[17] G.E. Blight, “Measurements on full size silos, Part 1: Temperature and strains”, Bulk Solids Handling, vol. 7, no. 6, pp. 157-162, 1987.
[18] G.E. Blight, “Temperature-induced loading on silo walls”, Structural Engineering Review, vol. 4, no. 1, pp. 61-71, 1992.
[19] A. Łapko and R. Tribiłło, “Influence of interaction of the bulk medium and silo bin on distribution of internal forces in circular wall cross sections”, Archives of Civil Engineering, vol. 35, no. 3-4, pp. 313-327, 1989.
[20] K. Diamoutene and M. Kaminski, “Investigation of temperature and strain distribution in reinforced-concrete wall of a rapeseed storage silo”, Structural Concrete, vol. 4, no. 3, pp. 109-116, 2003, doi: 10.1680/STCO.2003.4.3.109.
[21] A. Łapko and J.A. Prusiel, Studies on thermal actions and forces in cylindrical storage silo bins. Handbook of Convening and handling of Particulate Solids. Amsterdam: Elsevier, 2001, pp. 189-197.
[22] A. Łapko, M. Gnatowski, and J.A. Prusiel, “Analysis of some effects caused by interaction between bulk solid and r.c. silo wall structure”, Powder Technology, vol. 133, no 1-3, pp. 44-53, 2003, doi: 10.1016/S0032-5910(03)00095-0.
[23] PN-B-03262:2002 Reinforced concrete silos for bulk materials. Static calculations, design, construction, and operation. PKN, 2002 (in Polish).
[24] A. Halicka and D.J. Franczak-Balmas, Reinforced concrete tanks for liquids and bulk materials. Contemporary design principles with examples. Warszawa: PWN, 2020 (in Polish).
[25] A. Łapko and J.A. Prusiel, “Analysis of thermal effects in grouped silos of grain elevators”, International Agrophysics, vol. 20, no. 4, pp. 301-307, 2006.
[26] W.M.A. Khalifa and K.F.O. El-Kashif, “Computational Model for the Evaluation of Reinforced Concrete Silos Subjected to Thermal Load”, Engineering, Technology & Applied Science Research, vol. 9, no. 4, pp. 4411-4418, 2019, doi: 10.48084/ETASR.2874.
[27] Z. Mohammad, M. Anwar, S.S Ansari, and A. Baqi, “Finite Element Modelling of RC Silo subjected to Thermal Loads”, in Recent Trends in Civil Engineering. LNCE, vol. 274. Springer, 2023, pp. 419-427, doi: 10.1007/978-981-19-4055-2_33.
[28] A. Łapko and J. Kołłątaj, “The wireless technique of examination of silo wall structures during operation” in Proceedings of the 4th International Conference for Conveying and Handling of Particulate Solids, vol. 1. Budapest, Hungary, 2003, pp. 6.77-6.82.
[29] J.A. Prusiel, Effects of coupled thermal, humidity and static interactions in reinforced concrete cylindrical grain silos. Rozprawy Naukowe no. 271, Biblioteka Budownictwa, Oficyna Wydawnicza Politechniki Białostockiej, 2015 (in Polish).
[30] D. Gawin, Modeling of coupled thermal and hygroscopic phenomena in building materials and elements. Zeszyty Naukowe, no. 853, Rozprawy Naukowe, no. 279. Wydawnictwo Politechniki Łódzkiej, 2000 (in Polish).
[31] H. Garbalińska, Isothermal moisture transport coefficients of porous building materials. Prace Naukowe Politechniki Szczecińskiej, no. 571. Szczecin, 2002 (in Polish).
[32] A. Marynowicz and J. Wyrwał, Testing selected moisture properties of building materials under isothermal conditions. PAN KILiW, IPPT, Studia z zakresu Inżynierii, no. 52. Warszawa, 2005 (in Polish).
[33] T. Chyży, M. Mackiewicz, and S. Matulewicz, Modern graphical language for describing building structures ORCAN version 0.91. Syntax and applications. Oficyna Wydawnicza Politechniki Białostockiej, 2014 (in Polish).
[34] H.A. Janssen, “Versuche uber Getreidedruck in Silozellen. Zeitschrift”, Deutscher Ingenieure, vol. 39, pp. 1045-1049, 1895.
[35] H.B. Manbeck and G.L. Nelson, “Three dimensional constitutive equations for wheat en masse”, Transactions of the ASAE, vol. 18, no. 6, pp. 1122-1127, 1975.
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