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Sustainability 2017, 9(7), 1122; doi:10.3390/su9071122

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

1
State Key Laboratory of Disaster Reduction in Civil Engineering, Tongji University, Shanghai 200092, China
2
Research Institute of Structural Engineering and Disaster Reduction, Tongji University, Shanghai 200092, China
*
Author to whom correspondence should be addressed.
Received: 7 May 2017 / Revised: 20 June 2017 / Accepted: 23 June 2017 / Published: 27 June 2017

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. View Full-Text
Keywords: novel masonry structure; debris flow; contact; impact; straw brick; brace novel masonry structure; debris flow; contact; impact; straw brick; brace
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Li, P.; Li, T.; Lu, Z.; Li, J. Study on Dynamic Response of Novel Masonry Structures Impacted by Debris Flow. Sustainability 2017, 9, 1122.

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