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Laboratory investigations of sand-smooth steel interfaceunder monotonic and cyclic loadings |
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| รหัสดีโอไอ | |
| Creator | 1. Chaisit Pengjam 2. Suriyavut Pra-ai 3. Kwansirinapa Thanawong 4. Palinee Sumitsawan |
| Title | Laboratory investigations of sand-smooth steel interfaceunder monotonic and cyclic loadings |
| Publisher | Research and Development Office, Prince of Songkla University |
| Publication Year | 2563 |
| Journal Title | Songklanakarin Journal of Science and Technology |
| Journal Vol. | 42 |
| Journal No. | 5 |
| Page no. | 948-956 |
| Keyword | sand-steel interface, direct shear test, shear stress controlled tests, mean cyclic path, cyclic degradation |
| URL Website | https://rdo.psu.ac.th/sjstweb/index.php |
| ISSN | 0125-3395 |
| Abstract | Frictional characteristics of the interface between a structure and surrounding soil, which can commonly be found inmany geotechnical works, play an important role in evaluating the bearing capacity. The objective of this paper is to presentsome results of an experimental series on sand smooth steel interface under constant normal load (CNL) and constant normalstiffness (CNS) conditions. First, the monotonic interface direct shear tests were performed in order to determine the peak shearstress ratio or peak friction angel of sand smooth steel interface. Then the cyclic test campaigns were designed to perform.When subjecting to cyclic loading, the interface evidently showed the contractive behavior. Under CNS condition, thiscontraction led to the degradation in normal stress acting on the interface and then the stress state moved towards the peak (orresidual) stress ratio line in the stress plane. |
