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Cyclic performance of hdr hook-end precast beam-column joint: a finite element analysis
Kai, Siong Woon1, Farzad Hejazi2, Mohd Saleh Jaafa3, Farah Nora Aznieta Abd. Aziz4.
Small concrete cover to dowel’s diameter reduces the cyclic performance of
precast concrete frame with pinned dowel beam-column connection due to
brittle concrete splitting failure around the dowel joint. Besides, utilisation of
bearing pad thicker than half of dowel’s diameter causes the dowel bar to
sustain greater tensile stress and plastic elongation up to their breaking point
due to larger inclination of the dowel bar, particularly under the action of cyclic
loading. Hence, a new precast beam-column joint with hook-end configuration
and utilizing the advantage of high damping rubber (HDR), was proposed as
the alternative for precast structures. Therefore, this study presented the
horizontal and vertical cyclic performances of the precast frames with the
proposed joint, through numerical analysis using finite element software. The
numerical results were compared with a numerical modelled single pinned
dowel connected precast frame, which was verified with the experimental
results under horizontal cyclic loading. In terms of accumulative energy
dissipation capacity, the numerical results showed that precast frames with the
proposed joint demonstrated approximately 230% and 120% of improvement at
40 mm of horizontal cyclic level and 7 mm of vertical cyclic level, respectively,
than the precast frame with single pinned dowel connection. It indicates that
the viscoelastic behavior of HDR has contributed the benefit in this
improvement.
Affiliation:
- Universiti Tunku Abdul Rahman, Malaysia
- Universiti Putra Malaysia, Malaysia
- Universiti Putra Malaysia, Malaysia
- Universiti Putra Malaysia, Malaysia
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Indexation |
Indexed by |
MyJurnal (2021) |
H-Index
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6 |
Immediacy Index
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0.000 |
Rank |
0 |
Indexed by |
Scopus 2020 |
Impact Factor
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CiteScore (1.4) |
Rank |
Q3 (Engineering (all)) |
Additional Information |
SJR (0.191) |
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