Civil Engineering Reference
In-Depth Information
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8
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9
A
A
5
2
3
A-A
Fig. 4.22 Retrofitting for connections of exterior walls and inner walls by binding bars:
1. exterior wall; 2. inner wall; 3. slab; 4. cracks at connection site (filled with mortar); 5. tie rod welded
on rolled angles; 6. rolled angle; 7. screw bolt; 8. porthole (filled with mortar after putting in the tie rod);
9. tightened by screw nut.
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1
7
5
7
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3
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3
2
B
B
B-B
Fig. 4.23 Retrofitting for connections of exterior walls and floors (roof):
1. exterior wall; 2. reinforced concrete slab; 3. cracks between wall and slab (filled with mortar);
4. tie rod welded on steel plate; 5. steel plate; 6. screw bolt; 7. portholes in the wall and the floor (filled
with mortar after putting the tie rod and screw bolt); 8. tightened by screw nut.
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3
2
8
6
1
8
2
5
4
7
5
4
C
C
C-C
Fig. 4.24 Retrofitting for connections of exterior walls and ring beams:
1. exterior wall; 2. reinforced concrete slab; 3. bare reinforcement; 4. steel plate welded on bare
reinforcement; 5. tie rod welded on steel plate; 6. underboarding to fix the tie rod; 7. portholes for
inserting tie rod (filled with mortar after putting the tie rod and screw bolt);
8. tightened by screw nut.
