In this study, the structural stability of stone pagoda in Korea is evaluated with regard to the contact characteristics between stone blocks and a method for restoring the static stability of the stone pagoda by increasing the friction coefficient between stone blocks are proposed. Existing steel insertions, which are used for a temporary retrofitting method, bring about not only decoloration on the surface due to its corrosion but also stress concentration in stone blocks which may end up fracturing blocks. In order to replace the stiff insertions such as iron with ductile materials, lead or tin, experirnental test is conducted for identifying the friction characteristics of stone blocks without/with various types of insertions and the results indicated that a ductile compound metal insertion brought about the increase of the friction coefficients when compared to the existing iron insertion.

• 노정태(단국대학교 건축대학 건축공학과 석사과정) | Noh, Jung-Tae
• 이상현(단국대학교 건축대학 건축공학과 조교수，공학박사) | Lee, Sang-Hyun Corresponding author
• 정란(단국대학교 건축대학 건축공학과 정교수，공학박사) | Chung, Lan