Bridges should be periodically controlled for safety of their use. Investigating by using surveying methods is provided through assigning displacement in reference system or determining geometry of construction’s components. Themodern technologies of surveying allow to get increasing accuracy and give some possibility to solve complex measurement tasks. The paper presents displacements analysis of the cable-stayed bridge wrought by surveying techniques with the use of laser station TDRA6000. The bridge displacements were simulated by loading it down in the joints of the platforms. The results of this analysis allow to describe the basic features of construction's inflexibility.

Keywords: cable-stayed bridge, displacements, bridge structures dynamics.