The Influence of Vertical Ground Motion on the Design of Common R/C Frames
In this article, the response of reinforced concrete frames concurrently subjected to both horizontal and vertical seismic motions is assessed. The article is not limited to the variation in response quantities but aims to identify which specific design parameters are affected and how, as well as wh...
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MDPI AG
2025-02-01
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| author | Grigorios Manoukas Vasilios Tsiggelis |
| author_facet | Grigorios Manoukas Vasilios Tsiggelis |
| author_sort | Grigorios Manoukas |
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| description | In this article, the response of reinforced concrete frames concurrently subjected to both horizontal and vertical seismic motions is assessed. The article is not limited to the variation in response quantities but aims to identify which specific design parameters are affected and how, as well as which specific code provisions could be violated due to the omission of vertical oscillations during the design process. Furthermore, the consequences that a design against vertical ground motion would cause in both technical and economic terms were investigated. For this purpose, six eight-storey 2D frames were designed, neglecting the vertical seismic component in compliance with code provisions. Subsequently, the seismic response of the frames to the concurrent action of horizontal and vertical ground motion was evaluated by applying both modal response spectrum and inelastic dynamic analyses. It was found out that several code violations occurred, mainly due to the fluctuation of the columns’ normalized axial forces and the amplification of up to two times or more of the beam bending moments. Thereafter, the frames were redesigned without neglecting the vertical seismic component, and the changes in the members’ cross-sectional dimensions and reinforcement were determined. Finally, it was estimated that the economic impact of redesigning did not exceed 4% of the initial total construction cost of the frames. |
| format | Article |
| id | doaj-art-c07d1cfe4d2547f8b87bac837fba35d3 |
| institution | DOAJ |
| issn | 2076-3417 |
| language | English |
| publishDate | 2025-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj-art-c07d1cfe4d2547f8b87bac837fba35d32025-08-20T03:11:04ZengMDPI AGApplied Sciences2076-34172025-02-01154171110.3390/app15041711The Influence of Vertical Ground Motion on the Design of Common R/C FramesGrigorios Manoukas0Vasilios Tsiggelis1Department of Civil Engineering, Aristotle University of Thessaloniki, University Campus, Thessaloniki 54124, Central Macedonia, GreeceDepartment of Civil Engineering, Aristotle University of Thessaloniki, University Campus, Thessaloniki 54124, Central Macedonia, GreeceIn this article, the response of reinforced concrete frames concurrently subjected to both horizontal and vertical seismic motions is assessed. The article is not limited to the variation in response quantities but aims to identify which specific design parameters are affected and how, as well as which specific code provisions could be violated due to the omission of vertical oscillations during the design process. Furthermore, the consequences that a design against vertical ground motion would cause in both technical and economic terms were investigated. For this purpose, six eight-storey 2D frames were designed, neglecting the vertical seismic component in compliance with code provisions. Subsequently, the seismic response of the frames to the concurrent action of horizontal and vertical ground motion was evaluated by applying both modal response spectrum and inelastic dynamic analyses. It was found out that several code violations occurred, mainly due to the fluctuation of the columns’ normalized axial forces and the amplification of up to two times or more of the beam bending moments. Thereafter, the frames were redesigned without neglecting the vertical seismic component, and the changes in the members’ cross-sectional dimensions and reinforcement were determined. Finally, it was estimated that the economic impact of redesigning did not exceed 4% of the initial total construction cost of the frames.https://www.mdpi.com/2076-3417/15/4/1711seismic designplanar framesvertical ground motionresponse spectrum analysistime history analysisconstruction cost |
| spellingShingle | Grigorios Manoukas Vasilios Tsiggelis The Influence of Vertical Ground Motion on the Design of Common R/C Frames Applied Sciences seismic design planar frames vertical ground motion response spectrum analysis time history analysis construction cost |
| title | The Influence of Vertical Ground Motion on the Design of Common R/C Frames |
| title_full | The Influence of Vertical Ground Motion on the Design of Common R/C Frames |
| title_fullStr | The Influence of Vertical Ground Motion on the Design of Common R/C Frames |
| title_full_unstemmed | The Influence of Vertical Ground Motion on the Design of Common R/C Frames |
| title_short | The Influence of Vertical Ground Motion on the Design of Common R/C Frames |
| title_sort | influence of vertical ground motion on the design of common r c frames |
| topic | seismic design planar frames vertical ground motion response spectrum analysis time history analysis construction cost |
| url | https://www.mdpi.com/2076-3417/15/4/1711 |
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