The transmission tower structure consists of overhead power lines, steel-tower structure and lower foundation parts at each corner of the tower. Various types of foundations are used to support the upper tower structure depending on local soil condition. Pile foundation is usually adopted in soft clayey soils, as there are issues of instability problems such as insufficient load carrying capacity and large differential settlements. For such cases, connected foundation is an effective option, which can improve overall mechanical performance of transmission tower structure. In the present study, results obtained from a series of model load tests are presented to analyze the improved performance of connected foundation for transmission tower structures. Focus was given to changes in the load carrying capacity and differential settlement. The effects of load direction and connection-beam property were addressed in the analyses. The load carrying capacity and differential settlement noticeably changed with the use of connected foundation. Based on the test results, a methodology for the design application of connected foundation is presented. The validity of the method was checked with field test results.
|Number of pages||4|
|Publication status||Published - 2017|
|Event||19th International Conference on Soil Mechanics and Geotechnical Engineering, ICSMGE 2017 - Seoul, Korea, Republic of|
Duration: 2017 Sep 17 → 2017 Sep 22
|Other||19th International Conference on Soil Mechanics and Geotechnical Engineering, ICSMGE 2017|
|Country||Korea, Republic of|
|Period||17/9/17 → 17/9/22|
Bibliographical noteFunding Information:
This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIP) (No. 2011-0030040 and NRF-2016R1D1A1A09919098).
All Science Journal Classification (ASJC) codes
- Geotechnical Engineering and Engineering Geology