A study of the effects of fixing assemblies on the behaviour of reinforced concrete panels subjected to blast loads

T. Pham, Sudharshan Naidu Raman, T. Ngo, P. Mendis

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

2 Citations (Scopus)

Abstract

Several blast tests carried out by the authors have shown that the fixture can be the weakest part of the Reinforced Concrete (RC) facade system. Therefore, blast resistant designers should pay more attention to the response of fixing assemblies, as well as their effects on the response of RC panels, under blast loading. This paper presents a parametric study using finite element (FE) modelling to investigate the response of RC panels with different fixing stiffnesses when subjected to blast loading. The parametric study was performed using LS-DYNA, to determine the response of RC panels with different fixing stiffnesses when subjected to a blast loading of 5 kg Ammonite charge. All RC panels with dimensions of 1500 mm × 1000 mm × 80 mm were located 2 m beneath the centre of the charge. First, the results of a numerical model were validated with the experimental results obtained from the Vietnam 2009 trials. Subsequently, FE analyses were performed to determine the response of RC panels with varied levels of fixing stiffnesses when subjected to similar blast loads as mentioned. The results indicate that the fixing stiffness contributes significantly to the response and behaviour of the panels. In addition, the damage modes of the RC panels were found to be affected by the type and stiffness of the fixings. Therefore, their interaction needs to be considered during the design stage, in order to optimise the performance of RC panels when subjected to blast loads.

Original languageEnglish
Title of host publicationProceedings of the 8th International Conference on Shock and Impact Loads on Structures
Pages481-488
Number of pages8
Publication statusPublished - 2009
Externally publishedYes
Event8th International Conference on Shock and Impact Loads on Structures - Adelaide, SA
Duration: 2 Dec 20094 Dec 2009

Other

Other8th International Conference on Shock and Impact Loads on Structures
CityAdelaide, SA
Period2/12/094/12/09

Fingerprint

Reinforced concrete
Stiffness
Facades
Numerical models
Loads (forces)

Keywords

  • Blast loads
  • Concrete panel
  • Finite element (FE)
  • Fixing
  • Reinforced concrete

ASJC Scopus subject areas

  • Civil and Structural Engineering

Cite this

Pham, T., Raman, S. N., Ngo, T., & Mendis, P. (2009). A study of the effects of fixing assemblies on the behaviour of reinforced concrete panels subjected to blast loads. In Proceedings of the 8th International Conference on Shock and Impact Loads on Structures (pp. 481-488)

A study of the effects of fixing assemblies on the behaviour of reinforced concrete panels subjected to blast loads. / Pham, T.; Raman, Sudharshan Naidu; Ngo, T.; Mendis, P.

Proceedings of the 8th International Conference on Shock and Impact Loads on Structures. 2009. p. 481-488.

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

Pham, T, Raman, SN, Ngo, T & Mendis, P 2009, A study of the effects of fixing assemblies on the behaviour of reinforced concrete panels subjected to blast loads. in Proceedings of the 8th International Conference on Shock and Impact Loads on Structures. pp. 481-488, 8th International Conference on Shock and Impact Loads on Structures, Adelaide, SA, 2/12/09.
Pham T, Raman SN, Ngo T, Mendis P. A study of the effects of fixing assemblies on the behaviour of reinforced concrete panels subjected to blast loads. In Proceedings of the 8th International Conference on Shock and Impact Loads on Structures. 2009. p. 481-488
Pham, T. ; Raman, Sudharshan Naidu ; Ngo, T. ; Mendis, P. / A study of the effects of fixing assemblies on the behaviour of reinforced concrete panels subjected to blast loads. Proceedings of the 8th International Conference on Shock and Impact Loads on Structures. 2009. pp. 481-488
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