Retrofitting Design of Masonry Structures - Retrofitting Design of Building Structures - page 142

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Fig. 4.25 Retrofitting inside corner of exterior walls by mat reinforcement mortar covers:
1. corner of exterior wall; 2. cracks at connection site (filled with mortar); 3. holder of mat
reinforced-cement mortar covers and reinforcement concrete; 4. mat reinforcement; 5. anchor rod made by
deformed bar, with a diameter of 10 mm and a space of 600 ∼ 800 mm at vertical and horizontal directions;
6. porthole in the wall, with a depth of no less than 100 mm.

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Fig. 4.26 Retrofitting inside corner of exterior walls by steel plates:
1. corner of exterior wall; 2. cracks at connection site (filled with mortar); 3. dual steel plates made by
steel rods; 4. tightened by screw nut; 5. porthole in the wall (filled with mortar after installing screw bolt).