Experimental and Numerical Analysis of Laterally Loaded Single- and Double-Paddled H-Piles in Clay
An efficient foundation system of single- or double-paddled H-piles (PHPs), which comprises steel H-piles fitted with specially configured steel plates (paddles), is proposed to support sound walls subjected to wind loading. The lateral responses of single-paddled (SPHPs) and double-paddled H-piles...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-12-01
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| Series: | Geotechnics |
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| Online Access: | https://www.mdpi.com/2673-7094/3/4/72 |
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| author | Abdelrahman Abouziad M. Hesham El Naggar |
| author_facet | Abdelrahman Abouziad M. Hesham El Naggar |
| author_sort | Abdelrahman Abouziad |
| collection | DOAJ |
| description | An efficient foundation system of single- or double-paddled H-piles (PHPs), which comprises steel H-piles fitted with specially configured steel plates (paddles), is proposed to support sound walls subjected to wind loading. The lateral responses of single-paddled (SPHPs) and double-paddled H-piles (DPHPs) installed in clay is evaluated using a comprehensive assessment of the foundation performance via a full-scale lateral load testing program, alongside extensive three-dimensional (3D) nonlinear finite element (FE) analysis. The comparison between the calculated and measured responses of the PHPs demonstrates that the developed numerical model accurately depicts the response of the PHPs under lateral load. The validated numerical model is then used to evaluate the effect of the soil consistency on the lateral response and capacity of the PHPs. The influence of the paddles’ configuration on the lateral response and capacity of the PHPs is also evaluated. Furthermore, the change in the PHP lateral stiffness due to adding a second paddle is also examined. Finally, the influence of the plates on the surrounding soil is investigated by analyzing the formation of the strain field around the pile and evaluating the extent of the soil influence zone at different plate-width-to-pile-flange-width ratios (W<sub>p</sub>/W<sub>f</sub>). The result of this study indicates that adding plates contributes significantly to the lateral capacity of PHPs in clay and reduces the maximum bending moment. The parametric study reveals that the top 5–6 W<sub>p</sub> of the soil have a significant effect on the lateral response of the proposed H-pile. Based on the outcomes of the field tests and numerical analysis, optimal geometrical parameters for paddles are proposed. |
| first_indexed | 2024-03-08T20:43:40Z |
| format | Article |
| id | doaj.art-44f57777ca324384b405ca2abcd79bec |
| institution | Directory Open Access Journal |
| issn | 2673-7094 |
| language | English |
| last_indexed | 2024-03-08T20:43:40Z |
| publishDate | 2023-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Geotechnics |
| spelling | doaj.art-44f57777ca324384b405ca2abcd79bec2023-12-22T14:11:43ZengMDPI AGGeotechnics2673-70942023-12-01341324134510.3390/geotechnics3040072Experimental and Numerical Analysis of Laterally Loaded Single- and Double-Paddled H-Piles in ClayAbdelrahman Abouziad0M. Hesham El Naggar1Department of Civil and Environmental Engineering, Western University, London, ON N6A 5B9, CanadaDepartment of Civil and Environmental Engineering, Western University, London, ON N6A 5B9, CanadaAn efficient foundation system of single- or double-paddled H-piles (PHPs), which comprises steel H-piles fitted with specially configured steel plates (paddles), is proposed to support sound walls subjected to wind loading. The lateral responses of single-paddled (SPHPs) and double-paddled H-piles (DPHPs) installed in clay is evaluated using a comprehensive assessment of the foundation performance via a full-scale lateral load testing program, alongside extensive three-dimensional (3D) nonlinear finite element (FE) analysis. The comparison between the calculated and measured responses of the PHPs demonstrates that the developed numerical model accurately depicts the response of the PHPs under lateral load. The validated numerical model is then used to evaluate the effect of the soil consistency on the lateral response and capacity of the PHPs. The influence of the paddles’ configuration on the lateral response and capacity of the PHPs is also evaluated. Furthermore, the change in the PHP lateral stiffness due to adding a second paddle is also examined. Finally, the influence of the plates on the surrounding soil is investigated by analyzing the formation of the strain field around the pile and evaluating the extent of the soil influence zone at different plate-width-to-pile-flange-width ratios (W<sub>p</sub>/W<sub>f</sub>). The result of this study indicates that adding plates contributes significantly to the lateral capacity of PHPs in clay and reduces the maximum bending moment. The parametric study reveals that the top 5–6 W<sub>p</sub> of the soil have a significant effect on the lateral response of the proposed H-pile. Based on the outcomes of the field tests and numerical analysis, optimal geometrical parameters for paddles are proposed.https://www.mdpi.com/2673-7094/3/4/72paddled pilelateral loadingclaymodel teststhree-dimensional (3D) numerical analysisfinite element |
| spellingShingle | Abdelrahman Abouziad M. Hesham El Naggar Experimental and Numerical Analysis of Laterally Loaded Single- and Double-Paddled H-Piles in Clay Geotechnics paddled pile lateral loading clay model tests three-dimensional (3D) numerical analysis finite element |
| title | Experimental and Numerical Analysis of Laterally Loaded Single- and Double-Paddled H-Piles in Clay |
| title_full | Experimental and Numerical Analysis of Laterally Loaded Single- and Double-Paddled H-Piles in Clay |
| title_fullStr | Experimental and Numerical Analysis of Laterally Loaded Single- and Double-Paddled H-Piles in Clay |
| title_full_unstemmed | Experimental and Numerical Analysis of Laterally Loaded Single- and Double-Paddled H-Piles in Clay |
| title_short | Experimental and Numerical Analysis of Laterally Loaded Single- and Double-Paddled H-Piles in Clay |
| title_sort | experimental and numerical analysis of laterally loaded single and double paddled h piles in clay |
| topic | paddled pile lateral loading clay model tests three-dimensional (3D) numerical analysis finite element |
| url | https://www.mdpi.com/2673-7094/3/4/72 |
| work_keys_str_mv | AT abdelrahmanabouziad experimentalandnumericalanalysisoflaterallyloadedsingleanddoublepaddledhpilesinclay AT mheshamelnaggar experimentalandnumericalanalysisoflaterallyloadedsingleanddoublepaddledhpilesinclay |