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 45
- Downloads 0
THE USE OF THE IMAGE ANALYSIS METHOD FOR THE SEGREGATION OF SHREDDED WASTE IN AN AIR CLASSIFIER
Segregation of shredded waste is one of the technologies of waste management, along with issues related to manual segregation, while nowadays it starts to be associated with pneumatic classification. This paper discusses...
NUMERICAL MODELLING OF SOIL ARCHING IN A SHALLOW BACKFILL LAYER
The paper presents the application of the finite element method into the modelling of soil arching. The phenomenon plays fundamental role in soil-shell flexible structures behaviour. To evaluate the influence of arching...
Determination of moisture transfer coefficient in building materials on the basis of kinetics of a one direction capillary rise
The article presents an original mathematical presentation and calculation procedure to determine a moisture transfer coefficient in building materials on the basis of kinetics of a one direction capillary rise.<br/><br/...
Professor Wacław Żenczykowski and undone reform of Poland's housing industry
The American home building program launched after the World War II, resulted with 10 million homes built in 10 years. That enormous success attracted considerable attention from foreign engineers and politicians from all...
The assessment of the quality of public space on the example of Katowice and Bytom
A well-designed public space is friendly to its users. There are several different research methods to evaluate its utility quality. This study analyses town market squares in Katowice and Bytom, and two commercial compl...