Force Reduction Factor R for Shear Dominated Low-Rise Brick Masonry Structures
This paper presents investigation carried out, including experimental and numerical studies, on low-rise shear-dominated brick masonry structures for the calculation of force reduction factor R. Basic experimental tests were conducted on masonry constituent materials for mechancial characterization....
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| Format: | Article |
| Language: | English |
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K. N. Toosi University of Technology
2018-03-01
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| Series: | Numerical Methods in Civil Engineering |
| Subjects: | |
| Online Access: | https://nmce.kntu.ac.ir/article_160445_b9da55795c565d6a701eedbd02ce29f0.pdf |
| _version_ | 1826926507116724224 |
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| author | N. Ahmad Q. Ali M. Javed |
| author_facet | N. Ahmad Q. Ali M. Javed |
| author_sort | N. Ahmad |
| collection | DOAJ |
| description | This paper presents investigation carried out, including experimental and numerical studies, on low-rise shear-dominated brick masonry structures for the calculation of force reduction factor R. Basic experimental tests were conducted on masonry constituent materials for mechancial characterization. In-plane quasi-static cyclic tests were conducted on twelve full scale brick masonry walls, to understand behavior of shear-dominated walls under in-plane lateral loads. The tests’ data were analyzed to obtain the lateral shear strength, elastic and inelastic displacement capacities and hysteretic response of walls to facilitate numerical modelling of masonry structures. The numerical study included incremental dynamic analyses of shear-dominated brick masonry structures for the derivation of structures’ response curves, correlating the ground motion severity with the inelastic displacement demand on structure. The ductility dependent R factor is computed by identifying the ground motion intensities: capable to initiate global yielding in the structure (PGAy) and that exceeding the limit state displacement capacity of structure (PGAu), respectively. The ratio of the two PGAu/PGAy provides estimate of structures’ R factor. The calculated R factor varies in the range of 1.20 to 2.74, with a mean of 1.64; 1.5 may be conservatively used in the design and assessment of considered structures. |
| first_indexed | 2025-02-17T15:12:39Z |
| format | Article |
| id | doaj.art-a26a42dc9fd547bdb26270b74dd985ca |
| institution | Directory Open Access Journal |
| issn | 2345-4296 2783-3941 |
| language | English |
| last_indexed | 2025-02-17T15:12:39Z |
| publishDate | 2018-03-01 |
| publisher | K. N. Toosi University of Technology |
| record_format | Article |
| series | Numerical Methods in Civil Engineering |
| spelling | doaj.art-a26a42dc9fd547bdb26270b74dd985ca2024-12-20T08:36:08ZengK. N. Toosi University of TechnologyNumerical Methods in Civil Engineering2345-42962783-39412018-03-0123142910.29252/nmce.2.3.14160445Force Reduction Factor R for Shear Dominated Low-Rise Brick Masonry StructuresN. Ahmad0Q. Ali1M. Javed2Postgraduate Advisor of Earthquake Engineering, Department of Civil Engineering, UET Peshawar.Department of Civil Engineering, UET Peshawar.Department of Civil Engineering, UET Peshawar.This paper presents investigation carried out, including experimental and numerical studies, on low-rise shear-dominated brick masonry structures for the calculation of force reduction factor R. Basic experimental tests were conducted on masonry constituent materials for mechancial characterization. In-plane quasi-static cyclic tests were conducted on twelve full scale brick masonry walls, to understand behavior of shear-dominated walls under in-plane lateral loads. The tests’ data were analyzed to obtain the lateral shear strength, elastic and inelastic displacement capacities and hysteretic response of walls to facilitate numerical modelling of masonry structures. The numerical study included incremental dynamic analyses of shear-dominated brick masonry structures for the derivation of structures’ response curves, correlating the ground motion severity with the inelastic displacement demand on structure. The ductility dependent R factor is computed by identifying the ground motion intensities: capable to initiate global yielding in the structure (PGAy) and that exceeding the limit state displacement capacity of structure (PGAu), respectively. The ratio of the two PGAu/PGAy provides estimate of structures’ R factor. The calculated R factor varies in the range of 1.20 to 2.74, with a mean of 1.64; 1.5 may be conservatively used in the design and assessment of considered structures.https://nmce.kntu.ac.ir/article_160445_b9da55795c565d6a701eedbd02ce29f0.pdfbrick masonrybehavior factorseismic response modification factormasonry shear walls |
| spellingShingle | N. Ahmad Q. Ali M. Javed Force Reduction Factor R for Shear Dominated Low-Rise Brick Masonry Structures Numerical Methods in Civil Engineering brick masonry behavior factor seismic response modification factor masonry shear walls |
| title | Force Reduction Factor R for Shear Dominated Low-Rise Brick Masonry Structures |
| title_full | Force Reduction Factor R for Shear Dominated Low-Rise Brick Masonry Structures |
| title_fullStr | Force Reduction Factor R for Shear Dominated Low-Rise Brick Masonry Structures |
| title_full_unstemmed | Force Reduction Factor R for Shear Dominated Low-Rise Brick Masonry Structures |
| title_short | Force Reduction Factor R for Shear Dominated Low-Rise Brick Masonry Structures |
| title_sort | force reduction factor r for shear dominated low rise brick masonry structures |
| topic | brick masonry behavior factor seismic response modification factor masonry shear walls |
| url | https://nmce.kntu.ac.ir/article_160445_b9da55795c565d6a701eedbd02ce29f0.pdf |
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