Recent hydraulic bridge failures in China: review and discussion

IF 1.4 4区 工程技术
S. Qin
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引用次数: 1

Abstract

This paper studies 123 hydraulic bridge failures in China from 1998 to 2018. The geographic distribution, age distribution, bridge type distribution, time distribution and the hydraulic bridge failure causes are analyzed. Six typical failure cases of hydraulic bridges are analyzed in detail. 100 hydraulic bridge failures occurred in southern China so hydraulic bridge failures are much more common in this area. The average service life of these bridges is 28.9 years. The beam bridge accounts for the largest proportion of hydraulic bridge failure because 71 (57.7%) beam bridges were destroyed by flood. Hydraulic bridge failure mainly occurred between 2009 and 2014, which was related to the impact of the Wenchuan earthquake. The incidents major causes include unexpected flood, earthquake, old bridge, over sand exploitation, low awareness of hydraulic bridge damage, extreme morphology of the river, etc. There are both natural factors and man-made factors. These results show that three aspects should be paid attention to: (1) unexpected flood; (2) appropriate bridge type; and (3) extreme morphology of the river.
近年来中国液压桥梁事故的回顾与讨论
本文研究了1998 - 2018年中国123座液压桥梁的失效情况。分析了水工桥梁的地理分布、龄期分布、桥型分布、时间分布以及水工桥梁的失效原因。对6个典型的液压桥梁失效案例进行了详细分析。中国南方地区发生了100多起水工桥梁事故,水工桥梁事故在该地区更为普遍。这些桥梁的平均使用寿命为28.9年。梁桥在水工桥梁破坏中所占比例最大,71座(57.7%)梁桥被洪水破坏。水力桥梁的破坏主要发生在2009 - 2014年间,与汶川地震的影响有关。事故发生的主要原因有突发性洪水、地震、旧桥、过沙开采、对水工桥梁破坏认识不足、河流形态极端等。有自然因素,也有人为因素。研究结果表明,应注意三个方面:(1)突发性洪水;(2)合适的桥架类型;(3)河流的极端形态。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Revista de la Construccion
Revista de la Construccion 工程技术-工程:土木
CiteScore
2.30
自引率
21.40%
发文量
0
期刊介绍: The Journal of Construction is aimed at professionals, constructors, academics, researchers, companies, architects, engineers, and anyone who wishes to expand and update their knowledge about construction. We therefore invite all researchers, academics, and professionals to send their contributions for assessment and possible publication in this journal. The publications are free of publication charges. OBJECTIVES The objectives of the Journal of Construction are: 1. To disseminate new knowledge in all areas related to construction (Building, Civil Works, Materials, Business, Education, etc.). 2. To provide professionals in the area with material for discussion to refresh and update their knowledge. 3. To disseminate new applied technologies in construction nationally and internationally. 4. To provide national and foreign academics with an internationally endorsed medium in which to share their knowledge and debate the topics raised.
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