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A Parametric Study on Sand-Embedded Bell Pile Behaviour Under Uplift Loading
Belled anchor piles are typically recommended for on-land and offshore constructions where foundations must have a significant load-bearing capacity and tension anchorage for uplift resistance of foundations. Bell piles are suitable in the case of radar towers, television towers, power poles, roadside signposts, outdoor sign pools, overhead water tanks, tall chimneys, and so on, where the resultant uplift load exceeds their self-weight due to the imbalance of horizontal forces created by excessive wind velocity. In this paper, the uplift capacities of bell piles in dry sand are experimentally evaluated using a series of laboratory model tests. A parametric study is conducted by experimental investigation to assess the uplift capacities and displacement of bell piles with different bell angles (45°, 55° and 64°), diameter ratios (2.20, 3.08, and 3.56) and embedment ratios (3, 4, and 5). It is observed that with the increase in embedment ratios and diameter ratios, the uplift capacity increases for all bell angles. When the embedment ratio increased from 3 to 4 and 3 to 5, the uplift capacity increased by 1.62 and 2.53 times respectively, for a bell angle of 45° with a diameter ratio of 2.20. Furthermore, the current study offers significant perspectives for constructing foundations that support heavy loads and anchor tension in both on-shore and offshore constructions.
A Parametric Study on Sand-Embedded Bell Pile Behaviour Under Uplift Loading
Belled anchor piles are typically recommended for on-land and offshore constructions where foundations must have a significant load-bearing capacity and tension anchorage for uplift resistance of foundations. Bell piles are suitable in the case of radar towers, television towers, power poles, roadside signposts, outdoor sign pools, overhead water tanks, tall chimneys, and so on, where the resultant uplift load exceeds their self-weight due to the imbalance of horizontal forces created by excessive wind velocity. In this paper, the uplift capacities of bell piles in dry sand are experimentally evaluated using a series of laboratory model tests. A parametric study is conducted by experimental investigation to assess the uplift capacities and displacement of bell piles with different bell angles (45°, 55° and 64°), diameter ratios (2.20, 3.08, and 3.56) and embedment ratios (3, 4, and 5). It is observed that with the increase in embedment ratios and diameter ratios, the uplift capacity increases for all bell angles. When the embedment ratio increased from 3 to 4 and 3 to 5, the uplift capacity increased by 1.62 and 2.53 times respectively, for a bell angle of 45° with a diameter ratio of 2.20. Furthermore, the current study offers significant perspectives for constructing foundations that support heavy loads and anchor tension in both on-shore and offshore constructions.
A Parametric Study on Sand-Embedded Bell Pile Behaviour Under Uplift Loading
Lecture Notes in Civil Engineering
Nehdi, Moncef (editor) / Rahman, Rahimi A. (editor) / Davis, Robin P. (editor) / Antony, Jiji (editor) / Kavitha, P. E. (editor) / Jawahar Saud, S. (editor) / Bhowmik, Manoj Kumar (author) / Debnath, Abhijit (author) / Dhami, Kavindra Singh (author) / Pal, Sujit Kumar (author)
International Conference on Structural Engineering and Construction Management ; 2024 ; Angamaly, India
2024-12-29
10 pages
Article/Chapter (Book)
Electronic Resource
English
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