The degree of redistribution of efforts
Apparently, the insufficient thoroughness of the tests affected, since in the sheets of the load-bearing voltage design, only one side was measured. This did not allow the average voltage values, which had to be compared with the corresponding theoretical values. The same was repeated in the trials of the second and third bridges. We will answer that in the report of Schmidt and Clementa (Austria) about the braid of a two -track single -rope railway line with a span of 50 m, also in the form of a hollow double -ire closed box, experimental and theoretical lines of the influence of vertical defects at three points of the span; The second approximation of the calculated deflection gave a fairly close correspondence with the measured valid defects.
The test load in this case was a four -axis locomotive with a total weight of about 61 tons with a distance between the extreme axes of 4.29 m. Verzhbitsky (Poland) theoretically considered in his report the work of the curvilinear in terms of the beam multi -span bridge, as a curved polygonal rod, taking into account vertical bending and steep rigidity, and in the assumption of the presence of a fracture of support. With the same sides of the broken line, using the method of final differences, it received an approximate solution that ensures the determination of the updated (reduced) span of bending moments; The moments are reduced with an increase in the steeper stiffness of the span and with an increase in the angle of overclocking of the sides of the polygonal line in the plan, and the twisting moments increase. The report of Agngura (UAR) investigated the spatial work of oblique flights with a ride and the distribution of efforts in them and it is shown that the main farms are loaded to a lesser extent, compared with their calculation as flat structures, and the longitudinal and transverse relations carry more intense work. The degree of such a redistribution of efforts increases with an increase in the relative width of the span and the corner of the pigeon.