Assessing the safety of vaulted masonry structures using thrust network analysis

Avelino, Ricardo Maia; Iannuzzo, Antonino; Mele, Tom Van; Block, Philippe

doi:10.1016/j.compstruc.2021.106647

Cited by 25 publications

(12 citation statements)

References 35 publications

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“…in which, ūx , ūy , ūz [𝑛 × 1] represent the 𝑥, 𝑦, 𝑧 components of the support displacement and the partial derivatives of the reaction forces are expressed below (see also [25]):…”

Section: Minimising the Complementary Energy In The Set Of Admissible...mentioning

confidence: 99%

“…In [24], the network's horizontal projection, or form diagram, is fixed, reducing the indeterminacy of the equilibrium and allowing for efficiently coupling of the horizontal and vertical equilibria in a direct optimisation process. Further work [25][26][27][28] introduced different objective functions, such as minimising and maximising the horizontal thrust and maximising the geometric safety factor (GSF) and imposed constraints to the network's vertex elevations to lay within the structure. These later developments enabled the application of TNA to practical masonry assessment problems, keeping as main advantages the simple and intuitive input necessary to the analysis: the structural envelope and the geometry of the form diagram.…”

Section: Introductionmentioning

confidence: 99%

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An energy-based strategy to find admissible thrust networks compatible with foundation settlements in masonry structures

Avelino

Iannuzzo

Mele

et al. 2022

Mechanics Research Communications

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Section: Minimising the Complementary Energy In The Set Of Admissible...mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

An energy-based strategy to find admissible thrust networks compatible with foundation settlements in masonry structures

Avelino

Iannuzzo

Mele

et al. 2022

Mechanics Research Communications

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“…In this research, a set of lunar base building block design methods are proposed. These methods consist of plane geometry calculation, overall shape control, and structural performance optimization based on mathematical geometric principles, the thrust line grid analysis method (Avelino et al, 2021), and dynamic simulation analysis, in conjunction with BESO (Long et al, 2018). To determine the optimal geometric configuration of the shell, other factors, such as the shell slope, plane curve curvature, 3D printing head shape, and path planning and design, are considered.…”

Section: Global Topology Optimization Structural System Designmentioning

confidence: 99%

Robotic 3D printed lunar bionic architecture based on lunar regolith selective laser sintering technology

Yuan

Zhou

et al. 2022

ARIN

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The lunar base is not only an experimental station for extraterrestrial space exploration but also a dwelling for humans performing this exploration. Building a lunar base presents numerous obstacles and requires environmental perception, feedback design, and construction methods. An integrated fabrication process that incorporates design, 3D printing workflow, and construction details to build a bionic, reconfigurable and high-performance lunar base prototype is presented in this paper. The research comprises the study of the lunar regolith 3D printing mechanism, the real-time control of powder laying and compaction procedure, and the development of a 3D printing tool end system. In this paper, many scientific questions regarding in situ fabrication on the lunar surface are raised and addressed with the proposal of a progressive optimization design method, the molding principle, and gradation strategy of lunar soil-polyaryletherketone (PAEK) hybrid powder, and the principle of dual-light field 3D laser printing. The feasibility of the technical strategy proposed in this paper is verified by the presented empirical samples.

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“…To calculate the limit load for plastic collapse of the structures the limit analysis results one of the tools that received major interest in time. Recently, static analysis obtained renewed interest in the masonry structures framework due to the trust-line method and limit equilibrium application [1][2][3][4]. The limit analysis is used for the safety assessment of concrete domes and aches for large structures as shown in [5][6][7].…”

Section: Introductionmentioning

confidence: 99%

Semi-Analytical Lower-Bound Limit Analysis of Domes and Vaults

Zona¹,

Esposito²,

Palladino³

et al. 2022

Preprint

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The calculation of the collapse load of spherical domes is addressed using a semi-analytical approach under the hypotheses of small displacements and perfect plasticity. The procedure is based on the numerical approximation of the self-stress that represents the projection of the balance equilibrium null space on a finite dimensional manifold. The so obtained self-equilibrated stress span is superimposed to a finite element linear elastic solution to the prescribed loads yielding to the statically admissible set accordingly to Melan’s theorem. The compatibility of the stress with the constitutive law of the material has been enforced using linearized limit domain in terms of generalized stress, namely axial force and bending moment along the local spherical curvilinear coordinates. The procedure has been tested with reference to numerical and experimental data from the literature confirming the accuracy of the proposed method. The comparison with the literature confirms that the buckling load is much greater than the plastic collapse loads both calculated through the proposed procedure and reported in the quoted literature.

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Assessing the safety of vaulted masonry structures using thrust network analysis

Cited by 25 publications

References 35 publications

An energy-based strategy to find admissible thrust networks compatible with foundation settlements in masonry structures

An energy-based strategy to find admissible thrust networks compatible with foundation settlements in masonry structures

Robotic 3D printed lunar bionic architecture based on lunar regolith selective laser sintering technology

Semi-Analytical Lower-Bound Limit Analysis of Domes and Vaults

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