Abstract
The purpose of this study is to enable emergency recovery of damage caused by earthquakes in structures and prevent secondary damage by controlling progressive collapse. Although there have been many previous studies using reinforcing bars and meshes, there have been few studies using carbon grid fibers as a substitute for tension members. This study aims to quantitatively present disaster response seismic performance by manufacturing concrete panels with no layers, one layer, or two layers of carbon fiber grids inserted and to compare the flexural strength and energy dissipation capacity. Flexural strength increased by 7% with one layer and 15% with two layers compared with no layer. Energy dissipation capacity increased by 30 times with one layer and by 56 times with two layers compared with no layers, and showed great improvement in terms of seismic performance. Especially because of the large increase in the energy dissipation capacity, the carbon fiber grid reinforcement method is considered to be an effective method for improving seismic performance.
Highlights
ObjectivesThe purpose of this study is to enable emergency recovery of damage caused by earthquakes in structures and prevent secondary damage by controlling progressive collapse
Flexural strength increased by 7% with one layer and 15% with two layers compared with no layer
This study aimed to quantitatively present the disaster response seismic performance by comparing the energy dissipation capacity of concrete panels inserted with carbon fiber grids, and the conclusions are as follows: 4. Conclusions
Summary
The purpose of this study is to enable emergency recovery of damage caused by earthquakes in structures and prevent secondary damage by controlling progressive collapse. This study aims to quantitatively present disaster response seismic performance by manufacturing concrete panels with no layers, one layer, or two layers of carbon fiber grids inserted and to compare the flexural strength and energy dissipation capacity. The purpose of this study is to enable emergency recovery of damage caused by earthquakes in structures and to prevent secondary damage by controlling progressive collapse. This study aimed to quantitatively present the disaster response seismic performance by comparing the energy dissipation capacity of concrete panels inserted with carbon fiber grids, and the conclusions are as follows:
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