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Study on Dynamic Response of Novel Masonry Structures Impacted by Debris Flow

Author

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  • Peizhen Li

    (State Key Laboratory of Disaster Reduction in Civil Engineering, Tongji University, Shanghai 200092, China
    Research Institute of Structural Engineering and Disaster Reduction, Tongji University, Shanghai 200092, China)

  • Tangzhenhao Li

    (Research Institute of Structural Engineering and Disaster Reduction, Tongji University, Shanghai 200092, China)

  • Zheng Lu

    (State Key Laboratory of Disaster Reduction in Civil Engineering, Tongji University, Shanghai 200092, China
    Research Institute of Structural Engineering and Disaster Reduction, Tongji University, Shanghai 200092, China)

  • Jin Li

    (Research Institute of Structural Engineering and Disaster Reduction, Tongji University, Shanghai 200092, China)

Abstract

Debris flow is a very destructive natural disaster. This paper presents a novel masonry structure with strong resistance to debris flow—by using walls that are set with braces and filled with straw bricks. This structure was designed according to the concepts of sustainability. In order to study the dynamic response of this novel masonry structure under debris flow, finite element models of different masonry structures were established by means of LS-DYNA software. The responses of this novel structure and other traditional structures were calculated and compared when the rock of debris flow hits the center of the wall. Results showed that the out-of-plane stiffness of the impacted wall with cross braces was enhanced in this novel structure, leading to an increased resistance to the impact of debris flow more effectively. Furthermore, braces were able to stop rocks in the debris flow and dissipate the corresponding energy through deformation. These braces also improved anti-collapse capabilities, leading to an increase in the safety of people’s lives and properties. This novel structure is a response to national policies and plans, which plays an active role in promoting sustainable development of society.

Suggested Citation

  • Peizhen Li & Tangzhenhao Li & Zheng Lu & Jin Li, 2017. "Study on Dynamic Response of Novel Masonry Structures Impacted by Debris Flow," Sustainability, MDPI, vol. 9(7), pages 1-22, June.
    • Handle: RePEc:gam:jsusta:v:9:y:2017:i:7:p:1122-:d:102844
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    References listed on IDEAS

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    1. Wen Zhang & Qing Wang & Jianping Chen & Huizhong Li & Jinsheng Que & Yuanyuan Kong, 2015. "Grain-Size Analysis of Debris Flow Alluvial Fans in Panxi Area along Jinsha River, China," Sustainability, MDPI, vol. 7(11), pages 1-24, November.
    2. Cencen Niu & Qing Wang & Jianping Chen & Wen Zhang & Liming Xu & Ke Wang, 2015. "Hazard Assessment of Debris Flows in the Reservoir Region of Wudongde Hydropower Station in China," Sustainability, MDPI, vol. 7(11), pages 1-20, November.
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    Cited by:

    1. Fei Li & Yikang Liu & Jian Yang, 2022. "Durability Assessment Method of Hollow Thin-Walled Bridge Piers under Rockfall Impact Based on Damage Response Surface," Sustainability, MDPI, vol. 14(19), pages 1-24, September.

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