Experimental study on anti-impact properties of a partially prestressed concrete beam

LI Yan-zhao; WANG Xiao-jun; GUO Xiao-hui; CAO Hai; ZHAO Kai

doi:10.11883/1001-1455(2006)03-0256-06

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LI Yan-zhao, WANG Xiao-jun, GUO Xiao-hui, CAO Hai, ZHAO Kai. Experimental study on anti-impact properties of a partially prestressed concrete beam[J]. Explosion And Shock Waves, 2006, 26(3): 256-261. doi: 10.11883/1001-1455(2006)03-0256-06

Citation:

LI Yan-zhao, WANG Xiao-jun, GUO Xiao-hui, CAO Hai, ZHAO Kai. Experimental study on anti-impact properties of a partially prestressed concrete beam[J]. Explosion And Shock Waves, 2006, 26(3): 256-261. doi: 10.11883/1001-1455(2006)03-0256-06

Citation:

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Experimental study on anti-impact properties of a partially prestressed concrete beam

doi: 10.11883/1001-1455(2006)03-0256-06

1.
Department of Mechanics and Mechanical Engineering, University of Science and Technology of China, Hefei 230026, Anhui, China;
2.
Luoyang Institute of Hydraulic Engineering and Technology, Luoyang 471023, Henan, China

Publish Date: 2006-05-25

Abstract

Abstract

The dynamic displacement ductility and ultimate load-carrying capability of three partially-prestressed concrete (PPC) beams which were unbonded, were experimentally obtained by applying impact load to their middle with dropping hammers, and the typical measurement wave curves were given. Influences of a dropping hammers gravitational potential energy on the dynamic properties of the PPC beam were analyzed. Based on the analog simulation theory, the impact-load-carrying capability of the real unbonded PPC beam with span 12 m was gained. Results show that the unbonded PPC beams anti-impact properties are good, the fragile destruction will not happen, and the unbonded PPC beams can be used in wide-span underground structures.
- mechanics of explosion,
- anti-impact property,
- experimental study,
- prestressed concrete beam,
- dynamic properties,
- dropping hammer