Study on the Structure Optimization of Aluminum Foam Sandwich Panel for Bridge Pier Reinforcement across Debris Flow in Mountain Areas

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Journal of Vibration and Shock ›› 2016, Vol. 35 ›› Issue (10) : 108-114.

WANG Dongpo1, LI Wei2, HE Siming3,4, Li Xinpo3,4, Wu Yong3,4

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Abstract

Buffer structure on bridge pier in mountain areas can effectively reduce the impact of debris flow, and protect the bridge pier. Therefore, as an energy dissipation buffer material, the material of aluminum foam combines with steel plate was introduced into the field of debris flow impact bridge pier. Mechanical properties of five different structural forms of sandwich panels were analyzed by static load test. The results show: The aluminum foam sandwich structure has a broad and flat energy buffer platform, which can absorb a large amount of impact energy; the double layer aluminum foam sandwich structure is the best structural form by comparing the energy dissipation performance of the five different structural forms of sandwich panels. On the basis of this, the optimized structure was applied to the bridge pier across the debris flow, and the effect of engineering application is remarkable.

Key words

Debris flow / Bridge pier / Aluminum foam / Compression test / Energy dissipation

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WANG Dongpo1, LI Wei2, HE Siming3,4, Li Xinpo3,4, Wu Yong3,4. Study on the Structure Optimization of Aluminum Foam Sandwich Panel for Bridge Pier Reinforcement across Debris Flow in Mountain Areas[J]. Journal of Vibration and Shock, 2016, 35(10): 108-114

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