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Analysis of Lateral Loads on Piles Supporting Liquid Storage Tanks
Liquid storage tanks are usually located in nearshore or coastal regions with soil profiles containing thick layers of compressible soils. These storage tanks are usually of large diameter up to 90 m and carry high loads, and the tanks are often placed on heavy foundations such as piles. Piles supporting such tanks are to be designed for high lateral loads due to wind and earthquake, and any damage to storage tanks with highly inflammable liquids leads to disastrous conditions (Niigata and Alaska, 1964; 2011 Tohoku), etc. Performance of piles in liquefying ground under earthquake loading has been extensively studied; however, seismic behavior of piles in very soft clays has received relatively less attention, especially on their lateral capacity. The design of laterally loaded piles due to soil movement relies on several theoretical and numerical approaches. The subgrade reaction method (IS 2911 Part-1/Sect. 2: 2010) is most widely used for the design of laterally loaded piles in India and using this method, estimation of the magnitude of soil movement with reasonable confidence and accuracy is difficult. This paper discusses the analysis of lateral load on piles supporting storage tanks using the subgrade reaction method and load-deflection curves (p–y). The scope of this paper is limited to analysis using these methods. The results of the study indicate that the maximum bending moment in the piles that occurred during the earthquake using 3D FEM analysis is comparable to their moment capacities.
Analysis of Lateral Loads on Piles Supporting Liquid Storage Tanks
Liquid storage tanks are usually located in nearshore or coastal regions with soil profiles containing thick layers of compressible soils. These storage tanks are usually of large diameter up to 90 m and carry high loads, and the tanks are often placed on heavy foundations such as piles. Piles supporting such tanks are to be designed for high lateral loads due to wind and earthquake, and any damage to storage tanks with highly inflammable liquids leads to disastrous conditions (Niigata and Alaska, 1964; 2011 Tohoku), etc. Performance of piles in liquefying ground under earthquake loading has been extensively studied; however, seismic behavior of piles in very soft clays has received relatively less attention, especially on their lateral capacity. The design of laterally loaded piles due to soil movement relies on several theoretical and numerical approaches. The subgrade reaction method (IS 2911 Part-1/Sect. 2: 2010) is most widely used for the design of laterally loaded piles in India and using this method, estimation of the magnitude of soil movement with reasonable confidence and accuracy is difficult. This paper discusses the analysis of lateral load on piles supporting storage tanks using the subgrade reaction method and load-deflection curves (p–y). The scope of this paper is limited to analysis using these methods. The results of the study indicate that the maximum bending moment in the piles that occurred during the earthquake using 3D FEM analysis is comparable to their moment capacities.
Analysis of Lateral Loads on Piles Supporting Liquid Storage Tanks
Lecture Notes in Civil Engineering
Sitharam, T. G. (editor) / Kolathayar, Sreevalsa (editor) / Jakka, Ravi (editor) / Manne, Akhila (author) / Prasad, P. V. S. R. (author) / Annam, Madan Kumar (author)
2021-11-20
10 pages
Article/Chapter (Book)
Electronic Resource
English
Analytical Solution for Piles Supporting Combined Lateral Loads
| British Library Online Contents | 2006
Analytical Solution for Piles Supporting Combined Lateral Loads
| Online Contents | 2006
| NTIS | 1972
Steel piles to resist lateral loads
Engineering Index Backfile | 1939