The recent garment factory-building collapses in Bangladesh have raised awareness of the necessity of strengthening existing factory buildings to achieve building safety compliance. In this context, structurally deficient columns, as one of the most critical members in a structure, are a major focus in strengthening noncompliant buildings.
Furthermore, in flexural retrofitting, the application of externally-bonded carbon-fibre-reinforced polymer (CFRP) pultruded plates has emerged as a useful technique (externally bonded steel plates, the forerunner of CFRP plates) for enhancing the flexural capacity of reinforced-concrete (RC) beams. In such applications, the plates, which are externally bonded to the unconfined cover concrete at the tension face, often debond prematurely.
Two recent successive publications from the research Group of Prof. Amin are expected to be the key fundamental observations towards rationalizing the strengthening techniques for axial and flexural members. Estimation of design parameters for axial strengthening will be useful, particularly for Bangladesh that uses dilatable low strength concretes. The identification of design parameters in prevention of debonding in flexural strengthening will be useful for future development of design codes globally.
Hasnat, A., Islam, M. M., & Amin, A. F. M. S. (2015) | Islam, M. M., Choudhury, M. S. I., & Amin, A.F.M.S. (2015) | Islam, M. M., Choudhury, M. S. I., Abdulla, M., & Amin, A. F. M. S., (2011) | Hasnat, A., Islam, M. M., & Amin, A. F. M. S., (2011) | Amanat, K.M., Amin, A.F.M.S., Hossain, T.R., Kabir, A., Rouf, M.A., (2010)