TY  - CONF
A1  - Wieland, Marko
A1  - Sesselmann, Maximilian
T1  - A 3D approach for evaluating the structural condition of jointed plain concrete pavements in a pavement management context
T2  - 13th International Symposium on Concrete Roads 2018
N2  - In Germany, expenditure for the construction of new and maintenance of existing federal highways is currently at a record level of EUR 8 billion per year. In connection with the planned infrastructure policy reforms it is necessary to further develop the planning tools for dimensioning and substance assessment of road structures in order to increase the efficiency of construction measures. The stress caused by traffic is of central importance here. Since unevenness in the road surface has a significant influence on the dynamic part of the wheel load, dynamic effects must be explicitly taken into account. As a result, increasing unevenness can lead to higher dynamic loads and, in the context of a corresponding number of wheel rollovers, to disproportionate damage to the road structure. In general, a shock factor is taken into account during dimensioning, which is to be considered as a function of vehicle suspension, load, speed and evenness. This approach is not sufficient for concrete road structures executed as slabs. In the normal case, only the periodically occurring individual event of a transverse contraction joint, superimposed by irreversible and/or temporary slab deformations, can lead to a significant increase in the dynamic wheel load. In addition, the existing slab deformations are tied to many boundary conditions and can therefore vary greatly in their characteristics. For the further development of methods for dimensioning and residual substance assessment with regard to their accuracy, a three-dimensional slab-specific view of the road surface is therefore appropriate. In this paper, a suitable measuring method for three-dimensional surface laser scanning and an algorithm for the classification of slab deformations are presented.
KW  - Rigid pavement
KW  - Load
KW  - Surfacing
KW  - Strength (mater)
KW  - Slab
KW  - Condition survey
KW  - Laser
KW  - Deformation
KW  - Stiffness
KW  - Belastung
KW  - Betonstraße (Oberbau)
KW  - Decke (Straße)
KW  - Festigkeit
KW  - Laser
KW  - Platte
KW  - Steifigkeit
KW  - Verformung
KW  - Zustandsbewertung
Y1  - 2019
UR  - https://bast.opus.hbz-nrw.de/frontdoor/index/index/docId/2249
PB  - FGSV Verlag
CY  - Köln
ER  -