Stress-strain state of brick vaults with steel beams

• Main Author: Bedov, Anatoliy
• Format: Conference Proceeding
• Language: English
• Subjects: Arches; Bearing capacity; Bricks; Floors; Limit states; Linear functions; Steel beams; Strain; Stress-strain relationships; Structural damage; Vaults
• ISSN: 0094-243X; 1551-7616
• DOI: 10.1063/5.0103482

The analysis of the stress-strain state of one of the oldest types of floor structures, namely, brick vaults supported on steel beams (in some cases on steel rails), the so-called "Monier vaults" was carried out. Most commonly, the indicated constructive solution of the floors was used in the floors above the basements and has survived to this day in Moscow, St. Petersburg and other cities. The analysis was carried out for one of the buildings located on Tverskaya Street in Moscow. Taking into account the specifics of the stress-strain state of these structures (damaged in some instances), the analysis was carried out in the LIRA-SAPR 2019 (R2) sortware, in which the material parameters were set according to a piecewise linear function. Based on the calculation results, the values of deflections, maximum values of forces Nx, Ny, Qx, Qy, Mx, My, principal stresses in the top and bottom layers of the vaults σ1 and σ2, forces Qz and My in steel beams of the arch were obtained, taking into account their joint work with the arch. An assessment of the bearing capacity of steel beams for two groups of limit states, taking into account their joint work with the vaults was made, as well as a check of local stability, taking into account the behavior of the vault.