A numerical study on the seismic performance of built-up battened columns
Built-up columns have been widely employed by practice engineers in the design and construction of buildings and bridges. However, failures have been observed in this type of columns in previous seismic events. This study analyses the performance of built-up columns with different configurations of...
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World Academy of Science, Engineering and Technology
2017
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my.utm.815352019-08-23T05:21:25Z http://eprints.utm.my/id/eprint/81535/ A numerical study on the seismic performance of built-up battened columns Alih, Sophia C. Vafaei, Mohammadreza Mansour, Farnoud Rahimi Abdul Halim, Nur Hajarul Falahi TA Engineering (General). Civil engineering (General) Built-up columns have been widely employed by practice engineers in the design and construction of buildings and bridges. However, failures have been observed in this type of columns in previous seismic events. This study analyses the performance of built-up columns with different configurations of battens when it is subjected to seismic loads. Four columns with different size of battens were simulated and subjected to three different intensities of axial load along with a lateral cyclic load. Results indicate that the size of battens influences significantly the seismic behavior of columns. Lower shear capacity of battens results in higher ultimate strength and ductility for built-up columns. It is observed that intensity of axial load has a significant effect on the ultimate strength of columns, but it is less influential on the yield strength. For a given drift value, the stress level in the centroid of smaller size battens is significantly more than that of larger size battens signifying damage concentration in battens rather than chords. It is concluded that design of battens for shear demand lower than code specified values only slightly reduces initial stiffness of columns; however, it improves seismic performance of battened columns. World Academy of Science, Engineering and Technology 2017 Article PeerReviewed Alih, Sophia C. and Vafaei, Mohammadreza and Mansour, Farnoud Rahimi and Abdul Halim, Nur Hajarul Falahi (2017) A numerical study on the seismic performance of built-up battened columns. International Journal of Structural and Construction Engineering, 11 (5). pp. 609-612. https://dx.doi.org/10.5281/zenodo.1130651 DOI:10.5281/zenodo.1130651 |
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TA Engineering (General). Civil engineering (General) Alih, Sophia C. Vafaei, Mohammadreza Mansour, Farnoud Rahimi Abdul Halim, Nur Hajarul Falahi A numerical study on the seismic performance of built-up battened columns |
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Built-up columns have been widely employed by practice engineers in the design and construction of buildings and bridges. However, failures have been observed in this type of columns in previous seismic events. This study analyses the performance of built-up columns with different configurations of battens when it is subjected to seismic loads. Four columns with different size of battens were simulated and subjected to three different intensities of axial load along with a lateral cyclic load. Results indicate that the size of battens influences significantly the seismic behavior of columns. Lower shear capacity of battens results in higher ultimate strength and ductility for built-up columns. It is observed that intensity of axial load has a significant effect on the ultimate strength of columns, but it is less influential on the yield strength. For a given drift value, the stress level in the centroid of smaller size battens is significantly more than that of larger size battens signifying damage concentration in battens rather than chords. It is concluded that design of battens for shear demand lower than code specified values only slightly reduces initial stiffness of columns; however, it improves seismic performance of battened columns. |
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Article |
author |
Alih, Sophia C. Vafaei, Mohammadreza Mansour, Farnoud Rahimi Abdul Halim, Nur Hajarul Falahi |
author_facet |
Alih, Sophia C. Vafaei, Mohammadreza Mansour, Farnoud Rahimi Abdul Halim, Nur Hajarul Falahi |
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Alih, Sophia C. |
title |
A numerical study on the seismic performance of built-up battened columns |
title_short |
A numerical study on the seismic performance of built-up battened columns |
title_full |
A numerical study on the seismic performance of built-up battened columns |
title_fullStr |
A numerical study on the seismic performance of built-up battened columns |
title_full_unstemmed |
A numerical study on the seismic performance of built-up battened columns |
title_sort |
numerical study on the seismic performance of built-up battened columns |
publisher |
World Academy of Science, Engineering and Technology |
publishDate |
2017 |
url |
http://eprints.utm.my/id/eprint/81535/ https://dx.doi.org/10.5281/zenodo.1130651 |
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1643658740007698432 |
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13.160551 |