Release Time:2019-03-09  Hits:

Indexed by: Journal Article

Date of Publication: 2013-10-01

Journal: JOURNAL OF PERFORMANCE OF CONSTRUCTED FACILITIES

Included Journals: Scopus、SCIE

Volume: 27

Issue: 5

Page Number: 550-563

ISSN: 0887-3828

Key Words: Rural areas; Floods; Experimentation; Numerical analysis; Masonry; Buildings; Rural building; Flood impact; Theoretical study; Experimental research; Numerical analysis

Abstract: In this paper, the impact action of a flood on rural mountain buildings is systematically studied. First, based on the one-dimensional Saint-Venant water equation explicit-difference scheme, a new explicit-difference scheme is deduced to establish the evolutionary routing model of a flood. A computational formula about the impact loading of the flood model is deduced. Secondly, an impact experiment of a flood on buildings is carried out in a large wave-current tank. The heights of the water are 0.6, 0.9, and 1.2 m, and the distances between the building and floodgate are 3, 6, and 9 m, respectively. The model scale of the buildings is 1:6, and three buildings with different ratios of holes are designed to simulate the buildings in countries and villages. Based on the experimental results, the effects of the heights of the water, the distances between buildings and floodgates, and the ratios of holes on the impacting pressure are investigated. The numerical results are compared with the experimental results, and the distribution of impact loading is also studied. Finally, the rural building is analyzed numerically to investigate the destruction of the building because of the flood impact. The rural building is dissected into 7,950 eight-node block elements and 4,098 Goodman elements to simulate the brick and mortar, respectively. The stress, the displacement, and the failure process of the rural buildings are studied.