Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Numerical and Experimental Investigations on the Blast-Resistant Properties of Arched RC Blast Doors
In order to have a clear understanding of the blast-resistant properties of blast doors, full scale in-situ tests of an arched reinforced concrete blast door subjected to explosions outside a tunnel entrance were carried out. An elaborative three-dimensional FE analysis was conducted to numerically evaluate the structural response of the blast door. The blast loads applied on the door in the FE analysis were simulated by using the FE program AUTODYN and simplified to be triangular loads without consideration of the rising time. The dynamic responses of the tested blast door under single and multiple blast loads were analyzed by using the FE program ABAQUS which adopted a rate-sensitive material model combined with a concrete plastic damage model. The results of numerical simulation were compared with the experimental data. It is demonstrated that the strain-rate effects and nonlinear contacts between the door leaf and the doorframe steel plate as well as the enclaves and the steel tube have considerable influence on the responses of the arched reinforced concrete blast door. The mid-span displacement of the door increased with the increase of the number of explosions. The blast door finally failed after eight explosions.
Numerical and Experimental Investigations on the Blast-Resistant Properties of Arched RC Blast Doors
In order to have a clear understanding of the blast-resistant properties of blast doors, full scale in-situ tests of an arched reinforced concrete blast door subjected to explosions outside a tunnel entrance were carried out. An elaborative three-dimensional FE analysis was conducted to numerically evaluate the structural response of the blast door. The blast loads applied on the door in the FE analysis were simulated by using the FE program AUTODYN and simplified to be triangular loads without consideration of the rising time. The dynamic responses of the tested blast door under single and multiple blast loads were analyzed by using the FE program ABAQUS which adopted a rate-sensitive material model combined with a concrete plastic damage model. The results of numerical simulation were compared with the experimental data. It is demonstrated that the strain-rate effects and nonlinear contacts between the door leaf and the doorframe steel plate as well as the enclaves and the steel tube have considerable influence on the responses of the arched reinforced concrete blast door. The mid-span displacement of the door increased with the increase of the number of explosions. The blast door finally failed after eight explosions.
Numerical and Experimental Investigations on the Blast-Resistant Properties of Arched RC Blast Doors
Li, Chen (Autor:in) / Qin, Fang (Autor:in) / Ya-Dong, Zhang (Autor:in) / Yi, Zhang (Autor:in) / Jun-Yu, Fan (Autor:in)
International Journal of Protective Structures ; 1 ; 425-441
01.09.2010
17 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Test Methods and Standards for Blast-Resistant Doors
| British Library Online Contents | 2004
Explosion tests on blast doors
| British Library Online Contents | 2003
Nonlinear Modelling, Design, and Test of Steel Blast-Resistant Doors
| Tema Archiv | 2013
Blast propagation through windows and doors
| Tema Archiv | 2009
Lightweight, blast-resistant doors for retrofit protection against the terrorist threat
| British Library Conference Proceedings | 2003