Abstract
On the retrofit of existing sub-standard RC building with buckling restrained braces (BRBs), the insulation of elastic steel frame around BRBs is effective for restraining the residual deformation and the distribution of damage to whole structure. On this paper, the nonlinear hysteresis of steel frame member including the composite effect observed during the previous cyclic loading test is modelled to investigate its influence on the over-all structural response. Also, when the composite effect is unevenly distributed on each retrofit member, the worst distribution case of the composite effect is searched with genetic algorithm on the aspect of seismic performance is investigated.
| Original language | English |
|---|---|
| Pages (from-to) | 147-152 |
| Number of pages | 6 |
| Journal | AIJ Journal of Technology and Design |
| Volume | 23 |
| Issue number | 53 |
| DOIs | |
| Publication status | Published - Feb 2017 |
| Externally published | Yes |
Keywords
- Buckling restrained brace
- Composite effect
- Elastic steel frame
- Response control retrofit of existing RC buildings
- Worst-case analysis