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A Study for Numerical Procedure of Strengthening Capacity in Field Structure
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 Title & Authors
A Study for Numerical Procedure of Strengthening Capacity in Field Structure
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 Abstract
Recently, many strengthening methods are developed to repair damaged structures, especially, steel plate or carbon fiber sheet bonding methods are widely used. For the bonding methods, the strengthening materials are bonded when the original structure is under loading, with causes the difference of initial stresses between original member and bonded material. However, current design method or theory, which mostly depends on ultimately strength design, cannot account the difference of initial stresses between members, and it disregards the reduction of nominal strength. In this study, a new strengthening design theory and program which can account the difference of initial stresses are developed, and applied to the case when a structure in service is repaired. In order to verify the validity of the theory and the program, a test result is referred and compare with the results and it is showed that the calculated values are almost same as the referred data and finally proved that the program is reliable. The results showed that the amount of strengthening material depends on the status of damages of structure, and the nominal strength is reduced depending on the degree of damages.
 Keywords
strengthening;concrete;repair;design;structure;
 Language
Korean
 Cited by
1.
손상상태를 고려한 부재의 보강설계법 개발,한만엽;이성준;

한국콘크리트학회논문집, 2000. vol.12. 1, pp.69-77 crossref(new window)
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