APPLICATION OF CLASSICAL LAND SURVEYING MEASUREMENT METHODS FOR DETERMINING THE VERTICAL DISPLACEMENT OF RAILWAY BRIDGES
Journal Title: Civil and Environmental Engineering Reports - Year 2017, Vol 4, Issue 27
Abstract
The classical measurements of stability of railway bridge, in the context of determining the vertical displacements of the object, consisted on precise leveling of girders and trigonometric leveling of controlled points (fixed into girders' surface). The construction elements, which were measured in two ways, in real terms belonged to the same vertical planes. Altitude measurements of construction were carried out during periodic structural stability tests and during static load tests of bridge by train. The specificity of displacement measurements, the type of measured object and the rail land surveying measurement conditions were determinants to define methodology of altitude measurement. The article presents compatibility of vertical displacements of steel railway bridge, which were developed in two measurement methods. In conclusion, the authors proposed the optimum concept of determining the vertical displacements of girders by using precise and trigonometric leveling (in terms of accuracy, safety and economy of measurement).
Authors and Affiliations
Pelagia GAWRONEK, Maria MAKUCH
Keywords
Related Articles
- EP ID EP270318
- DOI 10.1515/ceer-2017-0059
- Views 65
- Downloads 0
A NUMERICAL ANALYSIS OF THE RESISTANCE AND STIFFNESS OF THE ALUMINIUM AND CONCRETE COMPOSITE BEAM
In this paper a numerical analysis of the resistance and stiffness of the aluminium and concrete composite beam is presented. Composite aluminium and concrete structures are quite new and they have not been thoroughly te...
Revitalisation issues of settlements built in 1946 – 1974 in terms of social and demographic changes
The paper refers to the issues of forming the revitalisation programs of settlements in particular houses built in 1946-1974 in terms of the understanding of social – demographic changes which have been taking place in a...
SHAKEDOWN ANALYSIS OF COMPOSITE STEELCONCRETE FRAME SYSTEMS WITH PLASTIC AND BRITTLE ELEMENTS UNDER SEISMIC ACTION
In this paper the earthquake analysis of composite steel-concrete frames is performed by finding solution of the optimization problem of shakedown analysis, which takes into account the nonlinear properties of materials....
MEASUREMENT DATA PROCESSING WITH THE USE OF ART NETWORKS
ART (Adaptive Resonance Theory) networks were invented in the 1990s as a new approach to the problem of image classification and recognition. ART networks belong to the group of resonance networks, which are trained with...
The influence of pH on solubility of copper in soils contaminated by copper industry in Legnica
The aim of the study was to determine the influence of changes in pH on the solubility of copper in soils contaminated by copper industry. Soil samples were collected from the surface soil horizon (0-30 cm) at two sites...