"Olympic Sports Complex". Concert hall coverage | Stalproekt LLC

The covering of the concert hall has a complex shape and is a system of intersecting lattice trusses and rigid beams with one axis of symmetry. The height in the light between the farm belts is 6.97m. The length of the coating is 135.36 m, the width is 82.22m, and the maximum span of the trusses is 78.72m.

The main supporting structures of the coating are the main trusses with box-shaped belts and a grid of welded I-beams. The pitch of the trusses is 30m, 9m and 3m in the transverse direction and 12m in the longitudinal direction. Ridge trusses are designed between the main trusses with a pitch of 9m and 10m in the longitudinal and transverse directions, respectively, to ensure the stability of the coating and prevent progressive collapse. Ridge farms are made of welded vertical and recumbent I-beams with a grid of welded I-beams, as well as bent-welded square pipes.

The corner coverage areas are designed as a system of rigid cross beams of I-beam cross section. The ridge beams rest on the upper belts of the main trusses pivotally.

The contour of the coating is formed by contour beams made of a box section of variable height. They are supported by trusses, main and ridge beams, and they also serve to ensure uniform thermal expansion along the building. All joints of support on contour beams are rigid.

Contour beams are supported by reinforced concrete structures of the building frame pivotally and movably through pendulum support parts.

Secondary beams of I-beam rolling section are placed along the upper and lower belts of the ridge farms. The secondary beams are connected to the belts of the trusses pivotally through shear joints.

To support the roof pie along the upper belts of the trusses, a disk of profiled flooring is designed with its attachment in each corrugation.

The overall stability of the structure is ensured by rigid junctions of the main, ridge, contour beams and trusses.

The local stability of individual elements is ensured by a rational choice of cross-sections.

The stability of the coating against avalanche-like (progressive) collapse is ensured by a rational solution to the system of main, contour and ridge beams, main and ridge trusses, which increases the degree of static indeterminacy and ensures spatial operation of the structure, as well as the use of structural and technological measures and materials that contribute to the development of plastic deformations in the elements and joints, reducing welding stresses.