Handbook for Bridge Inspections - TSP2
Handbook for Bridge Inspections - TSP2
Handbook for Bridge Inspections - TSP2
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9.2 CONCRETE ELEMENTS<br />
201 Settlement of Concrete Element<br />
Description<br />
Vertical movements in concrete abutment , wing walls, pillars etc. Sett lement in these eleme nts can<br />
late r lead to defonnation of the superstructure - refer to Type of Damage No. 203.<br />
Cause of Damage<br />
• Design fault - overestimati on of the ground's carrying capacity, underestimati on of the pressure<br />
exerted by the ground<br />
• Material fau lts - incorrect composition of infill material<br />
• Construction faults - fo undations not constructed as agreed<br />
'" Loads - caused by traffic or extra pressure on the ground in connection with construction work in<br />
the vicinity<br />
• In-service damage - secondary damage from erosion or underscouring of the ground.<br />
Current Measurements<br />
• Levell ing<br />
Degree of Damage/Consequences<br />
The degree of damage must be assessed based on the scope of the settl ement and its development as<br />
well as on any damage the settl ement may cause to the element which is subsiding. Both carrying<br />
capacity and/or maintena nce costs can be affected.<br />
146 <strong>Handbook</strong> <strong>for</strong> <strong>Bridge</strong> <strong>Inspections</strong>
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