The purpose of the guarantee inspection is to check if all the constructiontime carried out works or repairs after acceptance inspection are acceptableand whether the bridge has not been damaged or defective.
1; 12Every new cause of deterioration must be identified that can in the futureaffect maintenance. 1; 121.1.1. Regular inspectionsThe purpose of the general inspection is to check that the bridge has not appearedserious damage affecting the bearing capacity, traffic safety, futuremaintenance and environment / aesthetics. This is a visual check without theuse of access equipment, i.e. most elements for large bridges should be checkedat a distance.
If you need a closer look (Fig. 22.214.171.124.), you need to usebinoculars. 1; 12Fig. 2.
2.2.1. Visual check from distance usingbinoculars 52 The General Inspection includes a simple check on all the bridge elementsabove the water level. Groundwater check below water level without diving.
Inaddition, any test that is indicated in inspection form. No generalmeasurements are required and material testing, however, in the case of seriousbumps measurements are needed to determine moisture waterproofing the risk ofthe onset of percolation. 1; 12The General Inspection must record the damagethat should be corrected before the next inspection, they are usually grade 3and grade 4 damage. 1; 12 The inspection form is completed, and thenecessary measurements are made (Annex Nr.1).
An after inspection thereshould be lot of photos, like:Ø Near approach looking at thebridge;Ø Far approach looking to thebridge;Ø Bridge deck and railing;Ø Underside of the deck andbeams;Ø Upstream looking downstream atthe bridge;Ø Downstream looking upstream atthe bridge;Ø Looking upstream form thebridge;Ø Looking downstream form thebridge;Ø Near side substructure;Ø Far side substructure;Ø And additional pictures ofproblem areas.The inspection should be systematic, so youdon’t miss any important parts of structure. The purpose of the major inspection is to determine if the bridge performs itsfunctions, as well as to determine all necessary maintenance work and theircosts. If necessary, the inspection also includes measurements and materialtesting. 1; 12The major inspection includes visual inspectionof all bridge structures above the water level, except for the main cableinspection.
Whenever it considers it necessary measurements and material testsare added to the visual inspection, and it serves as a basis for predicting thedevelopment of open damage in the future. 1; 12When the major inspection revealed a major needfor repairs or the information obtained is not sufficient to decide what kind,grade, effect, distribution, or cause is discovered damage, then a specialinspection should be provided. The visual inspection for major inspection mustbe carried out as a close visual inspection, which means that the inspectormust act in hand reach distance to bridge elements. This provision can be ignoredif it is possible to detected damage from greater distances.
It may be checkingareas of metal or concrete. Areas where high tension, such as bearers andjoints it is obliged to carry out a close inspection. Serious damage andinherent defects should be illustrated with photo papers and / or sketches. 1;12 The main purpose of the cable inspection is to determine whether all cables, clamps andanchor points fulfil their functions, as well as determine the necessarymaintenance works and their costs. 1; 12The inspection must check the load-carryingcables, the hinged rods and the latter operational anchorage elements. Wheneverit feels as needed, measurements and material research to be added visualinspection, and it serves as the basis for the development of detected lesionsforecasting in the future. 1; 12The visual inspection should be of a close type.
It includes close visual checking for all cables from anchor to anchor, acrossthe cross section and in all hanging rods knots. In special circumstances,these special requirements can be ignored if the possible defect can bedetected from the larger one distances this can be by checking the cables androds clearly at a clear distance. In this case, the specific areas should beselected for visual inspection and others should be left to watch from furtherdistances. Serious damage and inherent defects should be illustrated with photopapers and / or sketches. 1; 12