Probabilistic Evaluation of Structural Pounding Between Adjacent Buildings Subjected to Repeated Seismic Excitations
This research investigates the effects of structural pounding (collision of structures) caused by insufficient gaps between adjacent buildings when subjected to repeated earthquakes. The structural performance of adjacent buildings experiencing structural pounding under the effect of moderate repeat...
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2019
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| Online Access: | http://eprints.um.edu.my/24005/ https://doi.org/10.1007/s13369-018-3666-4 |
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| author | Mohamed Nazri, Fadzli Miari, Mahmoud Ali Kassem, Moustafa Moffed Tan, Chee Ghuan Farsangi, Ehsan Noroozinejad |
| author_facet | Mohamed Nazri, Fadzli Miari, Mahmoud Ali Kassem, Moustafa Moffed Tan, Chee Ghuan Farsangi, Ehsan Noroozinejad |
| author_sort | Mohamed Nazri, Fadzli |
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| collection | Institutional Repository |
| content_provider | Universiti Malaya |
| content_source | UM Research Repository |
| continent | Asia |
| country | Malaysia |
| description | This research investigates the effects of structural pounding (collision of structures) caused by insufficient gaps between adjacent buildings when subjected to repeated earthquakes. The structural performance of adjacent buildings experiencing structural pounding under the effect of moderate repeated ground motions is analyzed using incremental dynamic analysis. Fragility curves for different performance levels are developed to represent the capacity of the adjacent buildings. Two four-story and two ten-story frames, regular and irregular, are combined to represent nine different cases of structural pounding and subsequently analyzed under three artificial seismic sequences. Three gap cases that measure 1 mm (contact structures), 10 cm, and 1 m are assigned to consider possible pounding combinations. Analysis results show that structural damage is directly proportional to ground motion intensity and structural irregularity and inversely proportional to gaps between structures. A minimum spacing of 1 m is proposed for buildings in areas that experience repeated earthquakes to avoid structural pounding. In regular frames, main damage is concentrated in the bottom story beams. Meanwhile, damage in irregular frames is concentrated in top and bottom story beams. Hence, additional stiffness that corresponds to the height of short buildings should be assigned to beams (immediate above and bottom). Meanwhile, the damage is concentrated in ground floor columns. Therefore, to avoid soft story failure mechanism, additional stiffness should be added to columns at bottom stories, especially on the ground floor. Based on the obtained results, modern seismic design codes need to be updated to address these findings on structural pounding to reduce damage in adjacent buildings during moderate to major seismic events. © 2018, King Fahd University of Petroleum & Minerals. |
| format | Article |
| id | my.um.eprints-24005 |
| institution | Universiti Malaya |
| publishDate | 2019 |
| publisher | Springer |
| record_format | eprints |
| spelling | my.um.eprints-240052020-03-11T03:55:27Z http://eprints.um.edu.my/24005/ Probabilistic Evaluation of Structural Pounding Between Adjacent Buildings Subjected to Repeated Seismic Excitations Mohamed Nazri, Fadzli Miari, Mahmoud Ali Kassem, Moustafa Moffed Tan, Chee Ghuan Farsangi, Ehsan Noroozinejad TA Engineering (General). Civil engineering (General) This research investigates the effects of structural pounding (collision of structures) caused by insufficient gaps between adjacent buildings when subjected to repeated earthquakes. The structural performance of adjacent buildings experiencing structural pounding under the effect of moderate repeated ground motions is analyzed using incremental dynamic analysis. Fragility curves for different performance levels are developed to represent the capacity of the adjacent buildings. Two four-story and two ten-story frames, regular and irregular, are combined to represent nine different cases of structural pounding and subsequently analyzed under three artificial seismic sequences. Three gap cases that measure 1 mm (contact structures), 10 cm, and 1 m are assigned to consider possible pounding combinations. Analysis results show that structural damage is directly proportional to ground motion intensity and structural irregularity and inversely proportional to gaps between structures. A minimum spacing of 1 m is proposed for buildings in areas that experience repeated earthquakes to avoid structural pounding. In regular frames, main damage is concentrated in the bottom story beams. Meanwhile, damage in irregular frames is concentrated in top and bottom story beams. Hence, additional stiffness that corresponds to the height of short buildings should be assigned to beams (immediate above and bottom). Meanwhile, the damage is concentrated in ground floor columns. Therefore, to avoid soft story failure mechanism, additional stiffness should be added to columns at bottom stories, especially on the ground floor. Based on the obtained results, modern seismic design codes need to be updated to address these findings on structural pounding to reduce damage in adjacent buildings during moderate to major seismic events. © 2018, King Fahd University of Petroleum & Minerals. Springer 2019 Article PeerReviewed Mohamed Nazri, Fadzli and Miari, Mahmoud Ali and Kassem, Moustafa Moffed and Tan, Chee Ghuan and Farsangi, Ehsan Noroozinejad (2019) Probabilistic Evaluation of Structural Pounding Between Adjacent Buildings Subjected to Repeated Seismic Excitations. Arabian Journal for Science and Engineering, 44 (5). pp. 4931-4945. ISSN 2193-567X, DOI https://doi.org/10.1007/s13369-018-3666-4 <https://doi.org/10.1007/s13369-018-3666-4>. https://doi.org/10.1007/s13369-018-3666-4 doi:10.1007/s13369-018-3666-4 |
| spellingShingle | TA Engineering (General). Civil engineering (General) Mohamed Nazri, Fadzli Miari, Mahmoud Ali Kassem, Moustafa Moffed Tan, Chee Ghuan Farsangi, Ehsan Noroozinejad Probabilistic Evaluation of Structural Pounding Between Adjacent Buildings Subjected to Repeated Seismic Excitations |
| title | Probabilistic Evaluation of Structural Pounding Between Adjacent Buildings Subjected to Repeated Seismic Excitations |
| title_full | Probabilistic Evaluation of Structural Pounding Between Adjacent Buildings Subjected to Repeated Seismic Excitations |
| title_fullStr | Probabilistic Evaluation of Structural Pounding Between Adjacent Buildings Subjected to Repeated Seismic Excitations |
| title_full_unstemmed | Probabilistic Evaluation of Structural Pounding Between Adjacent Buildings Subjected to Repeated Seismic Excitations |
| title_short | Probabilistic Evaluation of Structural Pounding Between Adjacent Buildings Subjected to Repeated Seismic Excitations |
| title_sort | probabilistic evaluation of structural pounding between adjacent buildings subjected to repeated seismic excitations |
| topic | TA Engineering (General). Civil engineering (General) |
| url | http://eprints.um.edu.my/24005/ https://doi.org/10.1007/s13369-018-3666-4 |
| url_provider | http://eprints.um.edu.my/ |