



Checking calculation of cover structure of Kolomna skating stadiumThe purpose of this work was to perform checking calculations of the cover structure of Kolomna skating stadium for specified loads and action. The performed calculations included:
The cover structure is a hanging membrane shell with negative Gaussian curvature, rigidly bound along its perimeter with closed reinforced concrete support contour. The support contour of oval shape rests along its longitudinal sides on two arches and 24 hingedly supported pillars. The ropes limiting longitudinal deformation of the membrane are laid onto the top of the membrane in longitudinal direction. Rope ends are fixed at special points on the beam of the support contour and then the ropes are stringed by specified force. Process equipment is suspended at the bottom of the membrane.
Number of joints in the model = 280508, number of elements = 240734. Calculation resultsThe figures below show the stressed state of one of the pillars under maximum load. The pillar was loaded with account taken of eccentricity.
The figures below show sections of the support contour with the results of calculation for maximum load.
During the calculation, the important factors listed below were determined. Firstly, when the ropes are stringed by force of 125 tons per a rope specified by the designer, all force factors acting in the support contour increase except for torque moment Mx. It was upsetting that bending moment Mu increased 4.2 times in comparison with its initial state and became equal to 1286.9 t•m whereas the allowable value was 600 t•m. Such value of the bending moment could result in the damage to the support contour and then in the collapse of the structure. As the moment of transverse wave generation forecast by the calculations was detected, the stage of rope tension was set to force value of 30 tons.
Hexa Company to order of the State Unitary Enterprise of the Moscow Region, Mosoblstroyproject Design Institute, 2006. 

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