Assessing Seismic Vulnerability of Unreinforced Masonry Walls Using Elasto-Plastic Damage Model

Algohi, Basheer; Demir, Cem; İlki, Alper; Baluch, Mohammed H.; Rahman, Muhammad K.

doi:10.1007/978-3-319-00458-7_7

Cited by 5 publications

(4 citation statements)

References 4 publications

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“…The FEM model was built in the ABAQUS software [18], where the Explicit solver was used. This software has been used successfully in previous situation regarding similar loading conditions [19][20][21] and similar materials [22,23]. The wall was discretized with 8-node solid elements (C3D8R) with reduced integration and hourglass control (ABAQUS User Manual, 2010).…”

Section: Numerical Modellingmentioning

confidence: 99%

Masonry infill walls under blast loading using confined underwater blast wave generators (WBWG)

Pereira

Campos

Lourénço

2015

Engineering Structures

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a b s t r a c tThe vulnerability of the masonry envelop under blast loading is considered critical due to the risk of loss of lives. The behaviour of masonry infill walls subjected to dynamic out-of-plane loading was experimentally investigated in this work. Using confined underwater blast wave generators (WBWG), applying the extremely high rate conversion of the explosive detonation energy into the kinetic energy of a thick water confinement, allowed a surface area distribution avoiding also the generation of high velocity fragments and reducing atmospheric sound wave. In the present study, water plastic containers, having in its centre a detonator inside a cylindrical explosive charge, were used in unreinforced masonry infills panels with 1.7 m by 3.5 m. Besides the usage of pressure and displacement transducers, pictures with high-speed video cameras were recorded to enable processing of the deflections and identification of failure modes. Additional numerical studies were performed in both unreinforced and reinforced walls. Bed joint reinforcement and grid reinforcement were used to strengthen the infill walls, and the results are presented and compared, allowing to obtain pressure-impulse diagrams for design of masonry infill walls.

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Section: Numerical Modellingmentioning

confidence: 99%

Masonry infill walls under blast loading using confined underwater blast wave generators (WBWG)

Pereira

Campos

Lourénço

2015

Engineering Structures

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“…ABAQUS Explicit was used to solve the non-linear equations of this problem. This software has been used successfully in previous situations regarding similar loading conditions [27] [28] and similar materials [29] [30]. This numerical model was calibrated previously using experimental results on masonry walls [31] [32].…”

Section: Results From the Explicit Analysismentioning

confidence: 99%

Risk Assessment Due to Terrorist Actions on Public Transportation Networks: A Case Study in Portugal

Pereira

Lourenço

2014

International Journal of Protective Structures

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The work presented in this paper was performed in collaboration with one of the largest Public Transportation Operator in Portugal and addresses the problem of risk assessment due to terrorist actions involving explosions at different levels. First, a region of the Operator is selected. The elements in the Operator's network with the highest associated risk are highlighted for each threat using the COUNTERACT guidelines. Subsequently, from the group of elements with the highest associated risk, an element is selected for structural safety evaluation under blast loading. Through numerical analysis, different explosion scenarios are studied and the behavior of the structure is presented.

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“…Works in the field of nonlinear analysis of stone masonry and multi-leaf stone masonry are rare compared to those of brick masonry. Finite element modelling with macromodelling and simplified micromodelling approach and numerical models have been proposed for multi-leaf stone masonry [14][15][16][17][18]. Experimental testing to find the mechanical properties of stone masonry have been conducted by different authors [19][20][21].…”

Section: Introductionmentioning

confidence: 99%

A Model for In-Plane Capacity of Multi-Leaf Stone Masonry Walls

Shrestha

Bhandari

2020

Journal of Engineering

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Masonry walls with distinct layers, known as multi-leaf masonry walls, are prevalent in many regions of the world including ancient architecture in Europe and new construction in the Himalayan region of South Asia. This paper presents a model for determining the capacity of multi-leaf stone masonry wall from its physical and mechanical parameters. For the study, a “Standard Wall” with typical properties of a multi-leaf stone masonry wall is defined and the capacity of the stone masonry wall is studied varying different physical and mechanical parameters of the wall to explore an analytical model that can represent the capacity of multi-leaf stone masonry. 300 models of multi-leaf stone masonry panels are analysed in ANSYS, and the capacity and displacement parameters are extracted by bilinearization of the pushover curve. As a result, a mathematical model between the capacity of a multi-leaf stone masonry wall and physical and mechanical properties is established.

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Assessing Seismic Vulnerability of Unreinforced Masonry Walls Using Elasto-Plastic Damage Model

Cited by 5 publications

References 4 publications

Masonry infill walls under blast loading using confined underwater blast wave generators (WBWG)

Masonry infill walls under blast loading using confined underwater blast wave generators (WBWG)

Risk Assessment Due to Terrorist Actions on Public Transportation Networks: A Case Study in Portugal

A Model for In-Plane Capacity of Multi-Leaf Stone Masonry Walls

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