Simplified Numerical Analysis of Soil–Structure Systems Subjected to Monotonically Increasing Lateral Load

Brandis, Adriana; Kraus, Ivan; Petrovčič, Simon

doi:10.3390/app11094219

Cited by 6 publications

(2 citation statements)

References 33 publications

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“…Such models are an important factor in the stress-strain state analysis of steel moment frames. Soil bases can be modelled using both nonlinear elements of the Link type and elastic elements of the Spring type [20]. Some modelling approaches use GAP elements or alternative options [21,22].…”

Section: Taking Account Of Soil-structure Interactionmentioning

confidence: 99%

Ensuring the Safety of Steel Moment Frames Subjected to Uncertain Impacts

Alekseytsev

2023

Buildings

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The article addresses the problem of safety evaluation of steel moment frames of civil buildings, e.g., warehouses, shops, garages, and multistory industrial buildings on deformable soil in the relevant case of an emergency impact. The case of accidental emergency impacts is considered when such parameters as the point, direction, and intensity of an impact cannot be predetermined. Such impacts are not expected to trigger the progressive collapse of currently implemented design solutions and the whole structure must maintain the property of survivability. To evaluate this property, several calculations are to be made in the quasi-static statement to identify the stress–strain state under the most dangerous accidental impacts. Further, final calculations are to be made in the dynamic statement. In this case, the problem of search is solved using the criterion of minimizing the integral safety margin of structural elements in a steel moment frame design. Calculations prevent the frame stability loss. The calculation is performed in the quasi-static statement using models made in compliance with the deformation theory of plasticity, while the calculation in the dynamic statement takes into account the associated plastic flow rule. The proposed procedures allow for designing steel moment frames that are resistant to accidental emergency impacts. Impact loading is analysed as pulse loading, which is statically equivalent to the dynamic effect of an inelastic impact of a stiff body on a structural system. The design and the efficiency evaluation of a steel moment frame of a two-story building are considered.

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Section: Taking Account Of Soil-structure Interactionmentioning

confidence: 99%

Ensuring the Safety of Steel Moment Frames Subjected to Uncertain Impacts

Alekseytsev

2023

Buildings

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“…It is well known that the SSI effect has a significant influence on the static and dynamic response of the structures [10][11][12]. Thus, the SSI effect should be properly taken into account to obtain satisfactory results.…”

Section: Introductionmentioning

confidence: 99%

Seismic Response Analysis of Anchor Joint in Shield–Driven Tunnel Considering Soil–Structure Interaction

Zhang

et al. 2022

Applied Sciences

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The seismic behavior of the anchor joint in shield-driven tunnel is very difficult to determine with the conventional methods due to the extensive simplifications. This paper proposed an improved approach to investigate the seismic response of the anchor joint, considering both the soil-structure-interaction effect and the actual geometric features. Two three-dimensional numerical models were established, including the soil-tunnel system and the refined model of the anchor joint. A seismic analysis study was first conducted on the soil-tunnel model under different seismic input waves to obtain the responses of the joint opening and offset. Then, these results were imposed on the refined model of anchor joint to further examine its detailed performance under seismic excitations. The joint opening and offset under earthquake excitations from different directions were discussed. The distribution characteristics of the stress of the anchor joint were interpreted. Finally, safety evaluations on the anchor joint were executed based on the overall seismic responses. The results show that the maximum opening and offset of the anchor joint under the two-directional horizontal earthquake are greater than those under the unidirectional conditions, while different deformation trends are observed for the joints at distinct locations. The maximum opening of the anchor joint can reach 0.73 mm, whereas the peak offset is only 0.35 mm. The local plastic strain of the anchor joint increases under the seismic action, but all of the joints are still kept in the safe state under the most unfavorable conditions. The developed method in this paper can also be accessed by the seismic study on other types of joints with complex structural components in shield tunnels.

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Structural Details in Energy-Efficient Buildings

Azinović

Kilar

Koren

2022

Springer Tracts in Civil Engineering

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In order to meet the EU Green Deal requirements, the thermal envelope of a modern energy-efficient building must be “wrapped” all around the building with no thermal bridges. This chapter describes the most important structural details and their effects on energy consumption and seismic resistance of the building as a whole. Those details where the energy efficiency might be inversely proportional to its earthquake resistance, are further explored and analysed.

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Simplified Numerical Analysis of Soil–Structure Systems Subjected to Monotonically Increasing Lateral Load

Cited by 6 publications

References 33 publications

Ensuring the Safety of Steel Moment Frames Subjected to Uncertain Impacts

Ensuring the Safety of Steel Moment Frames Subjected to Uncertain Impacts

Seismic Response Analysis of Anchor Joint in Shield–Driven Tunnel Considering Soil–Structure Interaction

Structural Details in Energy-Efficient Buildings

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