Schädigung von Stahlbetonplatten infolge eines harten Anpralls – Vergleich von halb-empirischen Methoden, experimentellen Ergebnissen

Research output: Contribution to conferencesPaperContributedpeer-review

Contributors

Abstract

The structural integrity of outer reinforced concrete (RC) containments of nuclear power plants provides an essential shield against external hazards. If this containment is damaged by an impact event, such as an aircraft crash, the question arises to which degree the reinforced concrete containment still has its protective capability. This concerns both purely structural protection and protection against liquids penetrating the interior of the containment. Due to the dimensions of the containment structures, it is difficult to perform real scale impact experiments, so in the past decades plate geometries at medium scale have been used for investigations. Detailed investigations on the structural behaviour of RC members or RC plates subjected to impact loading have already been presented in Just et al. [1], Hering [2], Hering et al. [3-5], Bracklow et al. [6; 7], Hille et al. [8] and Nerger et al. [9]. The following investigations deal with the single and multiple impact event (first hard impact and/or subsequent soft impact) on a RC specimen, which provides the basis for further investigations. A description of the test setup and the test procedure as well as a presentation of the test results from the impact tests are provided. Furthermore, the experimental program is presented, which the damaged RC specimens are to undergo to deal with the question of how much the impact-damaged RC structure has become permeable to liquid media, such as water and kerosene, depending on the intensity of the impact. The aim of these following investigations is to develop a test setup that can be applied to investigate the liquid penetration behaviour (LPB) of small, medium, and large-scale RC members. In addition to the liquid penetration experiments, the damaged specimens are to be examined by planar tomography to obtain the damage inside the specimen. The combination of damaging event, fluid penetration behaviour and tomography should enable a comprehensive understanding of the damage to the RC specimen.

Details

Original languageGerman
Number of pages8
Publication statusPublished - 15 Sept 2023
Peer-reviewedYes

Symposium

Title18. D-A-CH-Tagung
SubtitleErdbebeningenieurwesen und Baudynamik
Conference number18
Duration14 - 15 September 2023
Website
Degree of recognitionInternational event
LocationVeranstaltungszentrum Kiel / Novum Akademiehotel Kiel
CityKiel
CountryGermany

External IDs

ORCID /0000-0002-1825-1946/work/159170525
ORCID /0000-0001-6916-0086/work/159170996
ORCID /0000-0003-2440-5670/work/159171261
ORCID /0000-0001-6666-5388/work/159171832

Keywords

Keywords

  • Anpralllasten, Impaktbeanspruchung, Anprall an Stahlbeton, Fallturm