THE EFFECT OF GAP BETWEEN REINFORCED CONCRETE WALL AND THE STEEL PLATE ON BEHAVIOR OF THE BUCKLING-RESTRAINED STEEL PLATE SHEAR WALL
Steel shear wall is one of the relatively new resistant systems that has been used in designing and reinforcing high-rise buildings in the last four decades. Due to the optimal perf...
| Main Authors: | , , |
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| Format: | Article |
| Language: | fas |
| Published: |
Sharif University of Technology
2020-08-01
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| Series: | مهندسی عمران شریف |
| Subjects: | |
| Online Access: | https://sjce.journals.sharif.edu/article_21284_22333c782c8bd34bfbe37da751a64ac1.pdf |
| Summary: | Steel shear wall is one of the relatively new resistant systems that has been
used in designing and reinforcing high-rise buildings in the last four decades.
Due to the optimal performance of this type of lateral load system, including
high hardness, good ductility, and high energy dissipation, this system can
also be used to rebuild non-lethal structures. The composite steel shear wall
consists of a steel plate surrounded by slats by beams and columns and concrete
coverings on either side or both sides of the steel plate. In this system, the
reinforced concrete coating, by inhibiting the steel plate and preventing its
buckling, raises the shear capacity of the steel shear wall to the extent that
it is submitted to the inside of the sheet plate instead of stretching along
the tensile field (which occurs in thin steel shear walls). In this research, a
new type of composite steel shear walls, in which the concrete covers, instead
of the complete bond with the sheet, is studied numerically. Accordingly, the
steel shear walls with concrete coatings of zero and 15 mm between steel sheets
and concrete coatings have been studied parametrically after the verification.
In addition, these studies have been carried out between concrete casing and
perimeter frame in two cling-and-seamed modes. The results of numerical studies of more than 160 finite element models showed that increasing the distance between concrete and steel sheet reduced the strength and hardness of the system. Moreover, in the case where there is a gap between the concrete and the steel sheet, the coefficient of behavior is 11.21 on average and 8.11in the
non-distant state. In addition, concrete casting on both sides of the steel
plate in a non-distant area with boundary elements causes a 45\% increase in
hardness. |
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| ISSN: | 2676-4768 2676-4776 |