An analytical study about dynamic failure mechanism of anchorage zone of cocrete embedded anchor bolt

Satoru Munemoto, Yoshimi Sonoda

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Many bridges were seriously damaged by the Higashi Nihon Earthquake Disaster on March 11, 2011. Especially, bridge restrainer systems on the concrete pier were failed due to the anchorage zone's fracture. In general, dynamic failure of concrete under impact force loading is quite different from static failure. However, number of studies about damage mechanism caused by impact force between concrete and anchor bolts is few. Therefore, for the purpose of prevention a bridge restrainer system from collapsing by unexpected impact force, it is very important to consider of dynamic failure of concrete and evaluate the possibility of brittle failure. In this paper, in order to grasp impact failure condition such as corn failure and bond failure of anchor bolt embedded in concrete, we conducted dynamic pullout test with 3D FE analysis. In particular, to confirm the validity of FE analysis, at first we checked failure mechanism of anchor bolt embedded in concrete and compared the strength of them with experimental result in the static pullout test. Next, dynamic pullout simulations using the bond failure criteria and the strain rate effect of concrete are examined. Consequently, proposed method could simulate dynamic failure of anchor bolt in the previous experiments.

Original languageEnglish
Title of host publicationProceedings of the 9th International Conference on Shock and Impact Loads on Structures
Pages501-506
Number of pages6
Publication statusPublished - 2011
Event9th International Conference on Shock and Impact Loads on Structures - Fukuoka, Japan
Duration: Nov 16 2011Nov 18 2011

Other

Other9th International Conference on Shock and Impact Loads on Structures
CountryJapan
CityFukuoka
Period11/16/1111/18/11

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering

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  • Cite this

    Munemoto, S., & Sonoda, Y. (2011). An analytical study about dynamic failure mechanism of anchorage zone of cocrete embedded anchor bolt. In Proceedings of the 9th International Conference on Shock and Impact Loads on Structures (pp. 501-506)