Dynamic Behavior of Foundation for Steel Post of Rockfall Protection Fence Under Impact Loading
2021
In order to investigate the dynamic behavior of the steel posts of a rockfall protection fence that is embedded into a concrete (RC) retaining wall, static and drop-weight impact loading tests were conducted on 100 cm long H-section posts installed into the plain concrete foundation model. In these tests, a 300 kg steel weight was used and was dropped from a predetermined height. The specimen was changed for each test. The results obtained from this study are as follows: (1) a plastic hinge was formed near the base of the foundation in both cases of static and impact loading; and (2) based on the strain distributions in the post model, the anchoring depth of the post may be larger than that from design specification.
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