DOI: 10.5281/zenodo.13369038
title: Dataset of article: Residual capacity of RC beams subjected to impact loading: influence of reinforcement ductility. Part 4: Series I20

description: Part 4: Series I20

Results in this dataset are presented in Johansson et. al. (2024). Any results used from this open access data shall be cited to:Johansson M., Leppänen J., Andersson M. and Pettersson E. (2024). Residual Capacity of RC Beams Subjected to Impact Loading: Influence of reinforcement ductility. International Journal of Protective Structures. https://doi.org/10.1177/20414196241277221

The presented data is based on Andersson and Pettersson (2019):

Andersson M. and Pettersson E. (2019). Reinforced concrete beams subjected to drop-weight impact: Experimental study of the influence of reinforcement properties on the structural response. Department of Architecture and Civil Engineering. Gothenburg, Sweden: Chalmers University of Technology. Master’s Thesis ACEX30-19-27.

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This dataset consists of the following records:

Part 1: General information

Andersson and Pettersson 2019 - Reinforced Concrete Beams Subjected to Drop-Weight Impact

Part 2: Series S

Static tests – COM Correlate files

Part 3: Series I10

Static tests – COM Correlate files

Impact tests – High speed images

Impact tests – COM Correlate files

Part 4: Series I20

Static tests – COM Correlate files

Impact tests – High speed images

Impact tests – COM Correlate files

Part 5: Result files
description: Reinforced concrete (RC) is commonly used for protectives structures subjected to impulse loading and in the design of such structures, knowledge gained from static load conditions is often used. However, the response of an impulse loaded structural member may be very different compared to a statically loaded one, and hence it is not for sure that the observations made at static loading are also valid when subjected to impulse loading. The aim of this study is to address this uncertainty and compare the residual capacity, in terms of strength and internal work, in RC beams subjected to a combination of impulse and static loads or static load only. The impulse load was generated using a drop weight impact in which tests of 12 beams were carried out, and the residual capacity was subsequently tested statically. In addition, six beams were subjected to static loading only as references. The beams were simply supported with a span length of 1.3 m, cross section of 0.1 x 0.1 m and 2+2 f6 reinforcement bars of various ductility. Two sets of bars were used: regular bars and prestretched bars; the latter being cold-worked regular bars with increased yield strength but decreased ductility. The drop weight (10 kg or 20 kg) was dropped from a height of 5.0 m and a high-speed camera  used to record the beams’ response. From the images obtained, Digital Image Correlation technique was used to measure deformations and crack propagation. For pure static loading and mild impact loading (10 kg) combined with static loading, beams with regular bars obtained higher internal work than beams with prestretched bars. However, for severe impact loading (20 kg) combined with static loading, the difference in internal work was negligible. Regardless of bar type, the internal work increased with increased severity of the impact loading. 

Keywords:  Reinforced concrete, impact loading, reinforcement ductility, residual capacity, internal work
description: Links to records:

Leppänen J (2024) Dataset of article: Residual capacity of RC beams subjected to impact loading: influence of reinforcement ductility. Part 1: General information. https://doi.org/10.5281/zenodo.11181111

Leppänen J (2024) Dataset of article: Residual capacity of RC beams subjected to impact loading: influence of reinforcement ductility. Part 2: Series S. https://doi.org/10.5281/zenodo.13369031

Leppänen J (2024) Dataset of article: Residual capacity of RC beams subjected to impact loading: influence of reinforcement ductility. Part 3: Series I10. https://doi.org/10.5281/zenodo.13369037

Leppänen J (2024) Dataset of article: Residual capacity of RC beams subjected to impact loading: influence of reinforcement ductility. Part 4: Series I20. https://doi.org/10.5281/zenodo.13369039

Leppänen J (2024) Dataset of article: Residual capacity of RC beams subjected to impact loading: influence of reinforcement ductility. Part 5: Result files. To be published. https://doi.org/10.5281/zenodo.13369043