Possibility of Retrofit of Existing Reinforced Concrete Buildings with Low Strength Concrete
By H. Araki, M. Neguchi and K. Minami
Concrete Journal, Vol.48, No.7, Jul. 2010
- Synopsis
- Seismic evaluation of existing RC buildings have been extensive in Japan since earthquake of 1995. According to some reports, seismic evaluation found many RC buildings of very low concrete strength, i.e.less than half of the design concrete strength. It is necessary for evaluation and retrofitting to clarify the mechanical characteristics of low strength concrete and seismic performance of low strength concrete members and frames. In this report, the outline of the previous studies on the low strength concrete is described and the possibilities of strengthening are investigated through the experimental works.
- Keywords:
- low strength concrete, seismic evaluation, seismic retrofit, existing reinforced concrete buildings
