Failure risk assessment method of masonry structures under earthquakes and flood scouring

Dong, Zhi-Qian; Li, Gang; Bo, Song; Gao, Lu

doi:10.1080/15376494.2021.1884322

Cited by 17 publications

(12 citation statements)

References 39 publications

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“…• The comparison of the PDR obtained from time response analysis with the one suggested by ACI and Turkeli revealed that all of the PDR are lower than suggested allowable drifts. Also, a few PDR obtained from time response analysis are higher the value of the allowable top drift suggested by Dong [3] for slight damage.…”

Section: Discussionmentioning

confidence: 65%

“…FE analysis of historical structures using micro-model and macro-model methods leads to accurate results [6]. Many studies have used the macro-model method as constitutive law of masonry materials and evaluate their structural behavior [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][18][19][20][21][22][23][24][25]. In this method, the components of 4 Outline procedure for reliability assessment under wind and earthquake hazards masonry materials (unit and mortar) and joints surfaces are not modeled separately still modeled as a homogeneous and continuous material with the same mechanical characteristics.…”

Section: Fe Discretization Of Gaskar Minaretmentioning

confidence: 99%

“…Many studies have been done on the impact of natural hazards such as floods, strong winds, and earthquakes on historical structures such as minarets, that shown in the following. Dong et al [3] proposed a method for assessing the risk of failure of unreinforced masonry structures against earthquakes and flood scouring. Experience shows that most floods occur after or before an earthquake, so it is important to assess the risk of floods and earthquakes loading on the structures simultaneously.…”

Section: Introductionmentioning

confidence: 99%

“…To problems relate to non-convergence, the crushing capability of the masonry materials has been turned off and according to Eq. (1) and the points of Table1, the compressive behavior of the materials has been given to the program[3]. In addition, to account for shear transfer across the cracks, Willam-Warnke (WW) failure was also considered[3].…”

mentioning

confidence: 99%

“…(1) and the points of Table1, the compressive behavior of the materials has been given to the program[3]. In addition, to account for shear transfer across the cracks, Willam-Warnke (WW) failure was also considered[3]. The shear transfer coefficient, in the case of open and closed crack, is considered based on experience, trial, and error.…”

mentioning

confidence: 99%

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Multi-hazard reliability assessment of historical brick minarets

Pouraminian

2021

J Build Rehabil

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Historical brick minarets are the main elements of Iranian architecture and exist throughout Iran in different dimensions and heights. In this paper, the structural behavior of the Gaskar brick minaret, in the north of Iran, with a height of 16.11 m, has been studied against wind and earthquake hazards. Accurate discretization of finite element (FE) model of the minaret is performed to achieve accurate structural results. Then the wind load (WL) and earthquake load demand are determined according to the national building regulations, and technical literature then applied to the structure. Macro modeling strategies were utilized to modeling the masonry materials environment. Nonlinear properties are also assigned to masonry materials. The equivalent static WL is considered according to national building regulations. Three strong ground motion earthquake records are considered as seismic loading. In order to probabilistic seismic safety analysis of minaret, the load-resistance method was used for reliability analysis. The elasticity modulus, tensile and compressive strength of materials used as random variables generated by Monte-Carlo simulation (MCS) for 10% coefficient of variations. Peak displacement response (PDR) of the minaret as implicit limit state (LS) function is determined under far-field ground motions. The seismic reliability index (RI) is quantified using the design of experiment (DOE) due to its time-consuming computational costs. The results showed that the minaret is safe against design WL and loading of the strongest wind recorded in the world. The seismic reliability results indicate that the minaret is at risk of slight damage.

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Section: Discussionmentioning

confidence: 65%