EXPERIMENTAL AND NUMERICAL STUDIES ON THE REINFORCED CONCRETE FRAMES SUBJECTED TO BLAST LOADS
Terrorist bombing attacks will endanger and may even destroy the target building structures, resulting in economic loss and casualties. Typical columns and floor slab systems are not designed to resist the complex blast loading. So, in recent years, the effects of blast on conventional public buildings are focused on. In this paper,a two-bay,one-story reinforced concrete frame structure which is used to model a portion of a typical reinforced concrete frame structural system is used to investigate the blast response. The experiments are conducted on two models, allowing a variation in explosives standoff and explosives charge. In each experiment,the blast pressure values are recorded and the degree of damage of the frames are studied. According to the two kinds of experiments, two numerical models are established. ALE method which considers the interaction of the explosive, the air, and the structure is applied.Structure response analyses are performed using the large deformation finite-element computer code, LS-DYNA. The numerical results are compared with the experiment results, and a good agreement is obtained. The calculating results also demonstrate that some experimental value is unreasonable.
reinforced concrete frames blast effect experiment numerical analysis dynamic reponse
Li Xiao Wenzhong Qu Jiangang Wang
Department of engineering mechanics, Wuhan university, Wuhan 430072 Hubei institute of space vehicles.Wuhan 430040
国际会议
2011 International Conference on Mechatronics and Applied Mechanics(2011年机电一体化与应用力学国际会议 ICMAM 2011)
香港
英文
1173-1177
2011-12-27（万方平台首次上网日期，不代表论文的发表时间）