@inproceedings{MTMT:34029354,
	title = {Probabilistic Fragility Analysis of Smart Steel Moment-Resisting Frame Structure Subjected to Intentional Blast Loading},
	url = {https://m2.mtmt.hu/api/publication/34029354},
	author = {Kezh, Sardasht and Vigh, László Gergely},
	doi = {10.1007/978-3-031-30125-4_33},
	volume = {326 LNCE},
	unique-id = {34029354},
	year = {2023},
	pages = {362-376},
	orcid-numbers = {Kezh, Sardasht/0000-0002-4324-2363; Vigh, László Gergely/0000-0003-0896-4712}
}

@article{MTMT:33939747,
	title = {Blast reliability assessment and sensitivity analysis of steel MRFs equipped with NiTi SMA bolts},
	url = {https://m2.mtmt.hu/api/publication/33939747},
	author = {Kezh, Sardasht and Vigh, László Gergely},
	doi = {10.1016/j.engstruct.2023.116137},
	journal-iso = {ENG STRUCT},
	journal = {ENGINEERING STRUCTURES},
	volume = {286},
	unique-id = {33939747},
	issn = {0141-0296},
	abstract = {The probabilistic-based assessment of Moment Resisting Frame structure (MRFs) is significantly vital due to the high volatility of blast wave propagation parameters, material strength, and strain rate effect. In this study, the reliability and sensitivity of steel MRFs equipped with Nickel Titanium Shape Memory Alloy (NiTi SMA), and smart MRFs, subjected to Vehicle Borne Improvised Explosive Device (VBIED) are assessed. Since Eurocode does not address the design of a smart structure subjected to blast loading, the smart MRFs are designed based on the Eurocode-complying key design procedures proposed by the author's previous works. It is always a question if the structure designed based on the proposed Eurocode-complying design methodology satisfies the safety level criteria. The newly developed reliability framework approach by the authors is employed to assess the safety level of the smart MRFs based on the criteria given in the international probabilistic design provisions. Performance functions are parameterized based on three failure modes: axial force and bending moments (global buckling) in the columns, maximum rotation demand at the connections, and system-level structural integrity through Inter-Story Drift Ratio (ISDR). The uncertainties of the charge weight, material strength, gravity loads, model uncertainties, connection behavior parameters, strain rate effects, and column cross-sectional dimensions are considered. The proposed reliability framework is applied to the 4-story, 7-story, 10-story, and 15-story smart MRFs. The results show that the developed smart MRFs satisfy the safety level criteria recommended in the international provisions' probabilistic design requirement. Furthermore, the reliability-based outcome confirms the efficiency and applicability of the proposed Eurocode complying key design procedures and verifies the deterministic results of the smart MRFs. Finally, the sensitivity of the smart structures to various uncertain parameters is investigated. Among all the parameters, it is found that the Reliability Index (beta) of the smart MRFs is more sensitive to the uncertainties of charge weight, column web length(s), connection behavior parameters, and material strength. The sensitivity analysis shows that the smart MRFs are safe under unknown extreme conditions, a very high Coefficient of Variation (COV).},
	keywords = {BEHAVIOR; RESISTANCE; MEMORY; PERFORMANCE; Sensitivity analysis; Fragility; reliability analysis; Buildings; Seismic response; NiTi SMA; Moment resisting frame structure; TO-COLUMN CONNECTIONS},
	year = {2023},
	eissn = {1873-7323},
	orcid-numbers = {Kezh, Sardasht/0000-0002-4324-2363; Vigh, László Gergely/0000-0003-0896-4712}
}

@article{MTMT:33939745,
	title = {Reliability Assessment Methodology of Blast Protective Steel Moment Resisting Frame Using NiTi SMA-based Connection},
	url = {https://m2.mtmt.hu/api/publication/33939745},
	author = {Kezh, Sardasht and Vigh, László Gergely},
	doi = {10.3311/PPci.20493},
	journal-iso = {PERIOD POLYTECH CIV ENG},
	journal = {PERIODICA POLYTECHNICA-CIVIL ENGINEERING},
	volume = {67},
	unique-id = {33939745},
	issn = {0553-6626},
	abstract = {This paper proposes a methodology framework for the reliability assessment of smart steel Moment Resisting Frame structures (MRFs) equipped with Nickle Titanium Shape Memory Alloy (NiTi SMA) connections subjected to blast loading. The reliability assessment framework is formulated based on a two-step approach algorithm. In the 1st Step, the Monte Carlo Latin Hypercube Sampling Strategy simulation (MC-LHS) is adapted to generate the uncertain parameters sample points. Considering the numerical simulations, the 2nd Step employs simplified performance functions and the generated random outcomes from the 1st Step. The proposed reliability approach is verified against direct Monte Carlo Simulation (MCS) and First-Order Reliability Method (FORM). The performance functions are columns' axial force and bending moments, rotation capacity at the connections, and Inter-Story Drift Ratio (ISDR). Throughout the development of the reliability assessment, the probabilistic models are parametrized on geometrical properties, material properties, vertical loads, model errors, and charge weights. The developed reliability framework is applied to a prototype 4-story smart MRF. The structural safety level is obtained in terms of the Reliability Index (beta). The results show that the reliability framework provides an accurate and efficient structural collapse prediction of the MRFs equipped with NiTi SMA-based connections. Finally, sensitivity analysis is performed to indicate the sensitivity of building collapse to blast wave characteristics, material strength, vertical gravity loads, and column profile dimensions. The sensitivity analysis results also confirm the efficiency of the proposed reliability framework in observing the highly sensitive parameters, which is explosive charge weight.},
	keywords = {explosion; Reliability assessment; Smart structure},
	year = {2023},
	eissn = {1587-3773},
	pages = {671-682},
	orcid-numbers = {Kezh, Sardasht/0000-0002-4324-2363; Vigh, László Gergely/0000-0003-0896-4712}
}

@article{MTMT:32766449,
	title = {Seismic resilience assessment of critical infrastructures – Case study of M1 highway bridges},
	url = {https://m2.mtmt.hu/api/publication/32766449},
	author = {Vigh, László Gergely and Honfi, Dániel and Dunai, László and Zsarnóczay, Ádám and Simon, József and Dohány, Máté and Berki, Zsolt József},
	doi = {10.1556/112.2021.00073},
	journal-iso = {SCI SEC},
	journal = {SCIENTIA ET SECURITAS},
	volume = {2},
	unique-id = {32766449},
	abstract = {Safety and security of critical infrastructure networks is one of today’s top priorities, as they are getting increasingly complex and interdependent. Thus, their potential failure due to unforeseen and extreme events may result in exces-sive direct and indirect losses. Recently, focus has shifted from protection to resilience, i.e. the ability of a system exposed to a hazard not only to resist, but accommodate to and recover from the hazard effects.This paper – by the implementation of the IMPROVER technological resilience analysis – demonstrates the seis-mic technological resilience assessment of a section of M1 Highway in Hungary. Resilience against the community’s tolerances as well as risk-based resilience indicators are evaluated. The results suggest that technological resilience could be improved, thus certain resilience treatment options are highlighted.},
	keywords = {seismic hazard; Critical Infrastructure; resilience assessment; technological resilience},
	year = {2022},
	eissn = {2732-2688},
	pages = {440-451},
	orcid-numbers = {Vigh, László Gergely/0000-0003-0896-4712; Honfi, Dániel/0000-0001-5879-7305; Dunai, László/0000-0002-1018-2413; Zsarnóczay, Ádám/0000-0001-6895-1417; Simon, József/0000-0002-1245-1357}
}

@article{MTMT:32461566,
	title = {Blast Performance Evaluation of Steel Moment-Resisting Frame Equipped with Smart Bolted Connection},
	url = {https://m2.mtmt.hu/api/publication/32461566},
	author = {Kezh, Sardasht and Vigh, László Gergely},
	doi = {10.1061/(ASCE)CF.1943-5509.0001629},
	journal-iso = {J PERFORM CONSTR FAC},
	journal = {JOURNAL OF PERFORMANCE OF CONSTRUCTED FACILITIES},
	volume = {35},
	unique-id = {32461566},
	issn = {0887-3828},
	abstract = {This paper deterministically evaluates the blast performance of steel moment-resisting frame (MRF) smart structures equipped with nickel titanium shape-memory alloy (NiTi SMA) bolted connections. The recentering capacity of the NiTi SMA bolts is exploited to limit the structural damage and reduce the residual drift after a near-field explosion event. A simplified blast over-pressure calculation approach is used to draw the blast overpressure profile. Numerically, the NiTi SMA–based connection is designed conforming to current European standards and is modeled with a solid finite element. The effect of high-strain-rate actions is considered. The response of the NiTi SMA–based connection is obtained by the nonlinear transient analysis and compared with the steel bolted connection. The NiTi SMA–based connection provided excellent recentering capacity. Later, the moment-rotation response of the NiTi SMA–based connection is utilized in the MRF structure. A simplified self-centering connection is proposed to produce smart behavior in the MRF structures. The results reveal that using NiTi SMA connections keep interstory drift relatively low and substantially provide reasonable structural lateral resistance under near-field blast loading.},
	year = {2021},
	eissn = {1943-5509},
	orcid-numbers = {Kezh, Sardasht/0000-0002-4324-2363; Vigh, László Gergely/0000-0003-0896-4712}
}

@article{MTMT:32461563,
	title = {Behaviour of Smart Steel Column‐Beam Connection Under Blast Loading},
	url = {https://m2.mtmt.hu/api/publication/32461563},
	author = {Kezh, Sardasht and Vigh, László Gergely},
	doi = {10.1002/cepa.1371},
	journal-iso = {CE/PAPERS},
	journal = {CE/PAPERS},
	volume = {4},
	unique-id = {32461563},
	year = {2021},
	eissn = {2509-7075},
	pages = {857-865},
	orcid-numbers = {Kezh, Sardasht/0000-0002-4324-2363; Vigh, László Gergely/0000-0003-0896-4712}
}

@inproceedings{MTMT:31201387,
	title = {Simulation based imperfections and their effects on stability resistance},
	url = {https://m2.mtmt.hu/api/publication/31201387},
	author = {Budaházy, Viktor and Kollár, Dénes and Vigh, László Gergely},
	booktitle = {SDSS 2019 - International Colloquium on Stability and Ductility of Steel Structures},
	unique-id = {31201387},
	abstract = {The fabrication process of a steel structural member fundamentally determines its imperfections. The accuracy of cutting, the spring-back during cold forming, and the specification of welding procedure leads to residual stresses and distortions. In design according to the Eurocodes, engineer can use the equivalent geometric imperfections in geometrically and materially nonlinear analysis simulation. In certain cases, it is difficult to determine the amplitude of equivalent geometric imperfections, which can take the fabrication process into account, and the detailed knowledge of the stress and distortion can result in a more accurate design process. Primary aim of this paper is to illustrate the methodology of simulation based imperfection analysis and resistance computation, as well as to discuss the applicability of the method. In the paper, the calculation of axially compressed, cold-formed and welded members is presented, where the total fabrication and loading process are investigated based on numerical simulations. We compare the resistance of the member using equivalent geometric imperfections and considering the complete fabrication process.},
	keywords = {ARCHITECTURE; Construction & Building Technology},
	year = {2019},
	pages = {205-212},
	orcid-numbers = {Budaházy, Viktor/0000-0003-0393-3837; Kollár, Dénes/0000-0002-0048-3327; Vigh, László Gergely/0000-0003-0896-4712}
}

@CONFERENCE{MTMT:31038426,
	title = {Pushover analysis based assessment of smart structures subjected to external blast loading},
	url = {https://m2.mtmt.hu/api/publication/31038426},
	author = {Kezh, Sardasht and Vigh, László Gergely},
	booktitle = {XIII. Magyar Mechanikai Konferencia elektronikus kiadványa (pendrive)},
	unique-id = {31038426},
	year = {2019},
	pages = {1-11},
	orcid-numbers = {Kezh, Sardasht/0000-0002-4324-2363; Vigh, László Gergely/0000-0003-0896-4712}
}

@CONFERENCE{MTMT:31038416,
	title = {Helyi spektrumok előállítása és alkalmazása földrengésre történő méretezésre},
	url = {https://m2.mtmt.hu/api/publication/31038416},
	author = {Vigh, László Gergely and Zsarnóczay, Ádám and Mahler, András and Bán, Zoltán},
	booktitle = {XIII. Magyar Mechanikai Konferencia elektronikus kiadványa (pendrive)},
	unique-id = {31038416},
	year = {2019},
	pages = {1-8},
	orcid-numbers = {Vigh, László Gergely/0000-0003-0896-4712; Zsarnóczay, Ádám/0000-0001-6895-1417; Mahler, András/0000-0003-4673-3288; Bán, Zoltán/0000-0003-1253-9639}
}

@inproceedings{MTMT:31010071,
	title = {Földrengésteher meghatározásának geotechnikai vonatkozásai},
	url = {https://m2.mtmt.hu/api/publication/31010071},
	author = {Mahler, András and Bán, Zoltán and Hübner, Balázs and Zsarnóczay, Ádám and Vigh, László Gergely},
	booktitle = {5. Kézdi Konferencia},
	unique-id = {31010071},
	year = {2019},
	pages = {17-37},
	orcid-numbers = {Mahler, András/0000-0003-4673-3288; Bán, Zoltán/0000-0003-1253-9639; Zsarnóczay, Ádám/0000-0001-6895-1417; Vigh, László Gergely/0000-0003-0896-4712}
}