Modern methods for calculating transport infrastructure objects for progressive collapse

Modern Russian methods for calculating transport infrastructure objects for progressive collapse have been analysed and classified. An overview of the methods implemented in the SCAD and LIRA computer systems has been made. The transport infrastructure objects of the frame scheme have been calculated for progressive collapse with the removal of the supporting element. The results of the calculation of the frame scheme, taking into account additional parameters: damping of elements; joint work of the floor and steel structure elements; physical and geometric nonlinearity have been analysed. Analytical, statistical and mathematical methods were applied.

It has been established that the existing software systems have sufficient functionality for calculating transport infrastructure objects in a static, dynamic, linear and non-linear problem setting. The results of calculations performed in different computer systems show different results in dynamic and quasi-static methods.

The necessity of adjusting the existing Russian building codes, taking into account the calculation procedures in modern computer systems, is revealed.

1. Manual on the design of measures to protect buildings and structures from progressive collapse. Moscow, Federal Center for Standardization, Standardization and Technical Conformity Assessment in Construction Publ., 2018; 158. (In Russ.).

2. Manual on the design of measures to protect buildings and structures from progressive collapse. Part 2. Moscow, Federal Center for Standardization, Standardization and Technical Conformity Assessment in Construction Publ., 2020; 197. (In Russ.).

3. Handbook on the dynamics of structures / Under the editorship of Professor B. G. Korenev, I. M. Rabinovich. Moscow, Stroyizdat, 1972; 511. (In Russ.).

4. Pegin P.A., Shulgin A.A. Features of the calculation of the progressive collapse of the frame scheme of the structure during the melting of soils. BST: Byulleten’ Stroitel’noj Tehniki. 2023; 8(1068):12-14. EDN TLXBZA. (In Russ.).

5. Kiakojouri F., Sheidaii M.R., De Biagi V., Chiaia B. Progressive collapse of structures: A discussion on annotated nomenclature. Structures. 2021; 29:1417–1423. DOI: 10.1016/j.istruc.2020.12.006

6. Veselov V.V., Pegin P.A. Innovative floor and roof designs. BST: Byulleten’ Stroitel’noj Tehniki. 2022; 11(1059):36–39. EDN QWBSTU. (In Russ.).

7. Igolkin G.V., Pegin P.A. Method for Calculating the Beam Span Structure during Motion of the Magnetic Levitation Transport. IOP Conference Series: Materials Science and Engineering. 2018; 463:042053. DOI: 10.1088/1757-899x/463/4/042053

8. Caredda G., Makoond N., Buitrago M., Sagaseta J., Chryssanthopoulos M., Adam J.M. Learning from the progressive collapse of buildings. Developments in the Built Environment. 2023; 15:100194. DOI: 10.1016/j.dibe.2023.100194

9. Pegin P., Igolkin G., Rajczyk M. A model for dynamic design of a superstructure for magnetic levitation vehicles. Transportation Research Procedia. 2018; 36:567–576. DOI: 10.1016/j.trpro.2018.12.151

10. Progressive Collapse Analysis and Design Guidelines for New Federal Office Buildings and Major Expansion Projects, prepared by Applied Research Associates for GSA. Washington D.C., 2003;119.