Time history response analysis of a slender tower under translational-rocking seismic excitations

Bońkowski, Piotr; Zembaty, Zbigniew; Minch, M.

doi:10.1016/j.engstruct.2017.11.042

Cited by 38 publications

(21 citation statements)

References 28 publications

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“…Ghobarah and Baumber [1] pointed out that the fundamental mode of vibration determines the failure of the chimney at its base. In Bońkowski et al [2], the behavior of an industrial chimney is investigated subjected to translational-horizontal and rocking components of ground motion, and results imply that rotational excitations in the flexural vibrations of the chimney have great influence on the performance of chimney base. In Minghini et al [3], the risk of a brickwork chimney under 2012 Emilia earthquake is investigated, and the results indicate a shear failure mechanism of the upper part of the chimney.…”

Section: Introductionmentioning

confidence: 99%

Combined Effect of Vertical and Horizontal Ground Motions on Failure Probability of RC Chimneys

Guo

Chen

2018

Advances in Civil Engineering

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Previous earthquake events have shown that chimneys are one of the most fragile structures. Studies have focused on the seismic behavior of reinforced concrete (RC) chimney structures subjected to earthquake load only along the horizontal direction. However, the vertical component of strong ground motion has been proven to damage or completely destroy civil structures. Therefore, it is essential to determine the failure probability of RC chimneys under both horizontal and vertical directions. In this study, the seismic behavior of an RC chimney was studied through seismic fragility analysis, wherein a fragility model based on the intensity ratio between the vertical and horizontal components was proposed. In the fragility analysis, different intensity ratios of near-fault ground motions (NFGMs) between the vertical and horizontal components were considered. The findings indicate that the NFGMs along the vertical and horizontal directions significantly affect the failure probability if the intensity of the horizontal component is above a certain threshold. Moreover, the failure probability increases with the intensity of the vertical and horizontal ground motions. Therefore, the influence of the combination of the vertical and horizontal components of the NFGMs should be considered in the safety evaluation of RC chimney structures.

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Section: Introductionmentioning

confidence: 99%

Combined Effect of Vertical and Horizontal Ground Motions on Failure Probability of RC Chimneys

Guo

Chen

2018

Advances in Civil Engineering

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“…In the same way the paraseismic phenomena were defined in the paper written by Zembaty [6] where 18 low intensity seismic records were applied using response spectrum method. In addition, Bonkowski et al [7] analysed leaning structures loaded. To solve the problem the program SAP2000 was applied which uses the Finite Element Method (FEM).…”

Section: Introductionmentioning

confidence: 99%

The effect of mine induced tremors on seismic response of soil-steel bridges

Maleska

Bęben

2018

MATEC Web Conf.

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Rockburst are similar phenomena like low intensity natural earthquake. They can be observed in Upper and Lower Silesia regions. Analyses of soil-steel bridges under seismic excitation are so far limited. The rockburst is related to the mining exploitation. The influence of rockburst on the soil-steel bridges should be investigated, because this ground motions differ with many respects from natural earthquakes. The span of soil-steel bridges is typically range from 3 to 25 m, so they can be used as an effectives alternative for a short-span bridges. The soil-steel bridges can meet the design and safety requirements similar to traditional bridges, at lower costs. For these reasons, soil-steel bridges are more frequently used in road and railway projects in many parts of the World. This paper presents results of numerical study of soil-steel bridge under rockburst induced ground excitations. Response characteristic axial of the soil-steel bridge caused by rockburts are analysed in detail. The obtained results are compared with the ones computed under El Centro using the seismic benchmark record.

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“…Cohen et al [22] studied the seismic vulnerability of an elevated steel tank within a reinforced concrete chimney. Bońkowski et al [23] analyzed the time-history response of a slender tower under translational-rocking seismic excitation.…”

Section: Introductionmentioning

confidence: 99%

Seismic Response and Safety Assessment of an Existing Concrete Chimney under Wind Load

Cheng

Wang

et al. 2018

Shock and Vibration

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A safety assessment of a chimney under the action of wind and earthquake is performed on one of the reinforced concrete chimneys in the Jinchuan company in China. The assessment is based on the linear filtering method, and wind loads of several heights on one field are simulated by MATLAB. The displacement of the structure under the action of wind load and earthquake is analyzed using maximum value superposition, and the stress on the chimney is calculated in four cases using the equal curvature criterion method. The time-history responses of the tall chimney structure under linear and nonlinear elastic conditions are discussed. The results show that for a chimney under wind load or frequent earthquakes, the displacement limit can meet the code requirements; however, under the combined action of frequent earthquakes and wind load, the structural displacement is bigger than other conditions. When the chimney is acted upon by a wind load, frequent earthquake action, or the combined action of wind load and frequent earthquake action, the maximum compressive stress, maximum tensile stress, and maximum shear stress are concentrated at the bottom of the chimney. The ultimate bearing capacity of a reinforced concrete chimney under three conditions can meet the original design requirements, but the maximum compressive stress at the bottom approaches the designed tensile limit value under the action of rare earthquakes; under these conditions, the bottom of the chimney may experience partial damage.

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Time history response analysis of a slender tower under translational-rocking seismic excitations

Cited by 38 publications

References 28 publications

Combined Effect of Vertical and Horizontal Ground Motions on Failure Probability of RC Chimneys

Combined Effect of Vertical and Horizontal Ground Motions on Failure Probability of RC Chimneys

The effect of mine induced tremors on seismic response of soil-steel bridges

Seismic Response and Safety Assessment of an Existing Concrete Chimney under Wind Load

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