Experimental behaviour of hollow reinforced concrete members with inner octagonal steel tube under lateral impact. Issue 15 (November 2019)

• Record Type: Journal Article
• Authors: Zhao, Hui; Wang, Rui; Hou, Chuanchuan; Zhang, Dongjie
• Is Part Of: Advances in structural engineering. Volume 22:Issue 15(2019)
• Page Start: 3328
• Page End: 3340
• Publication Date: 2019-11
• Subjects: failure pattern -- hollow reinforced concrete -- impact force -- mid-span deflection -- octagonal steel tube; Structural engineering -- Periodicals; Construction, Technique de la; Structural engineering; Periodicals; 624.1
• DOI: 10.1177/1369433219858700
• Languages: English
• ISSNs: 1369-4332

Abstract

This work investigated the impact performance of hollow reinforced concrete members with inner octagonal steel tube. Experiments on 13 specimens subjected to low-velocity drop weight impact are presented in this article, covering key parameters such as the impact height, boundary condition, axial load ratio and thickness of the inner tube. The dynamic processes, failure patterns, impact force and mid-span deflection histories, and residual mid-span deflections were obtained from the experiments. Flexure-shear was observed as the main failure pattern for all the specimens under impact. It was found that all the key parameters considered had influences on the impact performance of hollow reinforced concrete specimens with inner octagonal steel tube. Effects of these parameters on the impact performance of hollow reinforced concrete members were discussed.