Handbook for Bridge Inspections - TSP2
Handbook for Bridge Inspections - TSP2
Handbook for Bridge Inspections - TSP2
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9.2 CONCRETE ELEMENTS<br />
Conditions which trigger Maintenance<br />
When de<strong>for</strong>mation has lead to too Iowa carrying capacity measures must be taken immediately.<br />
Action should also be taken when de<strong>for</strong>mat ion spoils the appearance of a bridge.<br />
Procedures:<br />
* Jacking up and adjustment of the bearings (continuous span bridges)<br />
* Removal of unwanted loads such as asphalt<br />
* Strengthening or reconstruction<br />
* Replacement of elements<br />
Example 9.2-5<br />
Deflection ofa cantili vered slab due to insufficie nt<br />
rein<strong>for</strong>cement/incorrectly installed rein<strong>for</strong>cement.<br />
Type of Damage: 203<br />
De<strong>for</strong>mat ion of Concrete Elemen ts<br />
Degree of Damage &<br />
Consequences:<br />
3C<br />
Cause of Damage: 12<br />
Erroneous calculations<br />
Procedures:<br />
Strengthening within one year<br />
Example 9.2-6<br />
Bowing ora column caused by fonnwork left<br />
behind after completion,resulting in an increase of<br />
the ground pressure on the column.<br />
Type of Damage:<br />
203<br />
De<strong>for</strong>mation of Concrete Element<br />
Degree of Damage & Consequences: 3C<br />
Cause of Damage: 38<br />
Construction fault<br />
62<br />
Soil Pressure<br />
Procedures:<br />
Strengthening of the columns and replacement of<br />
materi als with lighter ones (E PS) within one year.<br />
<strong>Handbook</strong> <strong>for</strong> Bri dge <strong>Inspections</strong> 151
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