Improved Performance of Electrical Transmission Tower Structure Using Connected Foundation in Soft Ground
A connected foundation is an effective foundation type that can improve the structural performance of electrical transmission towers in soft ground as a resilient energy supply system with improved stability. In the present study, the performance of a connected foundation for transmission towers was...
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| Format: | Article |
| Language: | English |
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MDPI AG
2015-05-01
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| Series: | Energies |
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| Online Access: | http://www.mdpi.com/1996-1073/8/6/4963 |
| _version_ | 1798033992309538816 |
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| author | Doohyun Kyung Youngho Choi Sangseom Jeong Junhwan Lee |
| author_facet | Doohyun Kyung Youngho Choi Sangseom Jeong Junhwan Lee |
| author_sort | Doohyun Kyung |
| collection | DOAJ |
| description | A connected foundation is an effective foundation type that can improve the structural performance of electrical transmission towers in soft ground as a resilient energy supply system with improved stability. In the present study, the performance of a connected foundation for transmission towers was investigated, focusing on the effect of connection beam properties and soil conditions. For this purpose, a finite element analysis was performed for various foundation and soil conditions. In order to validate the finite element analysis, the calculated results were compared with measured results obtained from field load tests. The use of connection beams was more effective for uplift foundations that usually control the design of transmission tower foundations. For the effect of soil condition, the use of connected foundation is more effective in soft clays with lower undrained shear strength (su). Smaller amounts of differential settlement were observed in all soil conditions for both unconnected and connected foundations when a bearing rock layer was present. When the foundation was not reinforced by connection beams, the values of lateral load capacity of tower structure (Hu) were similar for both with- and without-rock layers. It was confirmed that introducing haunch-shaped connection beams is effective for increasing connection beam stability. |
| first_indexed | 2024-04-11T20:38:05Z |
| format | Article |
| id | doaj.art-a3b7c87a2c3e4c58b7051d2acd8d3382 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-04-11T20:38:05Z |
| publishDate | 2015-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-a3b7c87a2c3e4c58b7051d2acd8d33822022-12-22T04:04:18ZengMDPI AGEnergies1996-10732015-05-01864963498210.3390/en8064963en8064963Improved Performance of Electrical Transmission Tower Structure Using Connected Foundation in Soft GroundDoohyun Kyung0Youngho Choi1Sangseom Jeong2Junhwan Lee3School of Civil and Environmental Engineering, Yonsei University, 134 Shinchon-dong, Seodaemun-gu, Seoul 120-749, KoreaKTP Consultants Pte Ltd., E-Centre@Redhill, 3791 Jalan Bukit Merah, Singapore 159471, SingaporeSchool of Civil and Environmental Engineering, Yonsei University, 134 Shinchon-dong, Seodaemun-gu, Seoul 120-749, KoreaSchool of Civil and Environmental Engineering, Yonsei University, 134 Shinchon-dong, Seodaemun-gu, Seoul 120-749, KoreaA connected foundation is an effective foundation type that can improve the structural performance of electrical transmission towers in soft ground as a resilient energy supply system with improved stability. In the present study, the performance of a connected foundation for transmission towers was investigated, focusing on the effect of connection beam properties and soil conditions. For this purpose, a finite element analysis was performed for various foundation and soil conditions. In order to validate the finite element analysis, the calculated results were compared with measured results obtained from field load tests. The use of connection beams was more effective for uplift foundations that usually control the design of transmission tower foundations. For the effect of soil condition, the use of connected foundation is more effective in soft clays with lower undrained shear strength (su). Smaller amounts of differential settlement were observed in all soil conditions for both unconnected and connected foundations when a bearing rock layer was present. When the foundation was not reinforced by connection beams, the values of lateral load capacity of tower structure (Hu) were similar for both with- and without-rock layers. It was confirmed that introducing haunch-shaped connection beams is effective for increasing connection beam stability.http://www.mdpi.com/1996-1073/8/6/4963resilient energy infrastructure systemelectrical transmission tower structuresconnected foundationsoft groundsfield load testfinite element analysis |
| spellingShingle | Doohyun Kyung Youngho Choi Sangseom Jeong Junhwan Lee Improved Performance of Electrical Transmission Tower Structure Using Connected Foundation in Soft Ground Energies resilient energy infrastructure system electrical transmission tower structures connected foundation soft grounds field load test finite element analysis |
| title | Improved Performance of Electrical Transmission Tower Structure Using Connected Foundation in Soft Ground |
| title_full | Improved Performance of Electrical Transmission Tower Structure Using Connected Foundation in Soft Ground |
| title_fullStr | Improved Performance of Electrical Transmission Tower Structure Using Connected Foundation in Soft Ground |
| title_full_unstemmed | Improved Performance of Electrical Transmission Tower Structure Using Connected Foundation in Soft Ground |
| title_short | Improved Performance of Electrical Transmission Tower Structure Using Connected Foundation in Soft Ground |
| title_sort | improved performance of electrical transmission tower structure using connected foundation in soft ground |
| topic | resilient energy infrastructure system electrical transmission tower structures connected foundation soft grounds field load test finite element analysis |
| url | http://www.mdpi.com/1996-1073/8/6/4963 |
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