To update of the methodology for calculating reinforced concrete structures for endurance

The research work (R & D) was carried out at the A.A. Gvozdev Research Institute of Concrete and Reinforced Concrete, one of the tasks of which was to analyze the existing methodology for calculating endurance in the current SP 63.13330.2018 from the standpoint of the changes in the regulatory and technical base in recent years. The conducted computational and theoretical studies have shown that there are some imperfections in the methodology for calculating domestic standards, the presence of which is a deterrent to its wider application. Based on the results of the research, the composition of the requirements for the endurance calculation method was formulated, which includes general provisions, calculation requirements, endurance calculation and design requirements. In the context of the specified composition of requirements, proposals were developed to supplement and update the methodology for calculating endurance, presented in SP 63.13330.2018, which include the relevant provisions for calculation and design. When developing the proposals, the provisions of the calculation methods set out in SNiP 2.03.01–84 and other regulatory documents were taken into account as much as possible. The prepared calculation proposals are expected to be included in the current regulatory documents as one of the possible options for the final calculation method.

1. SNiP II-V.1–62*. Concrete and reinforced concrete structures. Design standard. Мoscow: Stroyizdat. 1962. 101 р. (In Russian).

2. SNiP 11-21–75. Concrete and reinforced concrete structures. Design standard. Мoscow: Stroyizdat. 1976. 89 р. (In Russian).

3. SNiP 2.03.01.84*. Concrete and reinforced concrete structures. Мoscow: Gosstroy of Russia. 1989. 84 p. (In Russian).

4. Manual for the design of prestressed concrete structures made of normal-weight and lightweight concrete (for SNiP 2.03.01–84). Мoscow: TSNIIPromzdaniy. 1984. 341 p. (In Russian).

5. SP 35.13330.2012. Bridges and pipes. Updated version of SNiP 2.05.03–84*. Мoscow: Minstroy of Russia. 2012. 214 p. (In Russian).

6. SP 41.13330.2011. Concrete and reinforced concrete structures of hydraulic structures. Updated version of SNiP 2.06.08–87. Мoscow: Minstroy of Russia. 2012. 73 p. (In Russian).

7. SP 63.13330.2018. Concrete and reinforced concrete structures. General rules. Мoscow: Minstroy of Russia. 2018. 124 p. (In Russian).

8. SNiP 52-01–2003. Concrete and reinforced concrete structures. General rules. Мoscow: Gosstroy of Russia. 2003. 39 p. (In Russian).

9. Research work “Conducting research with the development of the composition of the requirements for the method of calculating reinforced concrete structures under the action of repeated loads and preparing proposals for the inclusion of calculations for the limit state of endurance in the current regulatory document”. Moscow: FAU FTS, 2020. 216 p. (In Russian).

10. Sharipov R.Sh., Volkov Yu.S., Zenin S.A., Krylov S.B. On the issue of developing requirements for the method of calculating reinforced concrete structures under the action of repeatedly repeated loads. <i>Bulleten stroitelnoy tehniki</i>. 2020. No. 7, pp. 53–56. (In Russian).

11. Sharipov R.Sh., Zenin S.A., Krylov S.B., Volkov Yu.S. Evaluation of methods for calculating reinforced concrete structures for the ultimate state of fatigue. <i>Vestnik NITS “Stroitelstvo”</i>. 2020. No. 4 (27), pp. 148–159. (In Russian).

12. Krylov S.B., Zenin S.A., Sharipov R.Sh., Volkov Yu.S., Tsigulev A.O. Determination of stresses in the reinforcement of reinforced concrete structures for calculating the limit state for fatigue. <i>Stroitelnaya mehanika i raschet sooruzheniy</i>. 2020. No. 5 (292), pp. 4–11. (In Russian).

13. Novoe v proektirovanii betonnykh i zhelezobetonnykh konstruktsii / Pod red. A.A. Gvozdeva [New developments in the design of concrete and reinforced concrete structures. Edited by A.A. Gvozdev]. Мoscow: Stroyizdat. 1978. 201 p.

14. European committee for standartisation. EN 1992-1-1, Eurocode 2: Design of concrete structures. Part 1-1, General rules and rules for buildings.

15. FIB Model Code for concrete structures 2010. International Federation for Structural Concrete (fib) Lausanne, Switzerland. 2013.

16. CEB Bulletin 188 «Fatigue of concrete structures. State-of-the-Art Report», CEB, Lausanne, Switzerland. 1988.

17. ACI Committee 318, “Building Code Requirements for Reinforced Concrete”, (ACI 318-14), American Concrete Institute, Detroit. 2014.

18. ACI 215R-97 Considerations for Design of Concrete Structures Subjected to Fatigue Loading (Revised 1992/Reapproved 1997).

19.