Modeling of a brick building of high storeys on a pile foundation

Relevance. This work is devoted to modeling the stress-strain state of a high-rise brick building on a pile foundation in engineering and geological conditions using the MicroFe design and computing complex, which allows you to create a design scheme in the “base – foundation – building” system using piles in the form of rod end. elements in the soil mass.

Goal. Analyzed-deformed state of the system “base – foundation – building”, obtaining the calculated values of tension and reinforcement in the grillage.

Materials and methods. The calculation was carried out both in a linear formulation and in a constructively nonlinear formulation with one-sided nonlinear connections between bulk soil elements and pile bar elements. Results. In a nonlinear formulation of the solution to the problem, with a limitation of the permissible design load on the piles, a redistribution of efforts between the piles through the grillage is obtained.

Conclusions. Linear calculation is carried out in the case when the greatest forces in the piles do not exceed the specified design load. If this condition is not met, then in the design model, a limitation is introduced on the value of the ultimate load on the piles, equal to the design value, and the calculation is performed considering the constructive nonlinearity of one-sided connections between the pile bar elements and bulk soil elements. Solving the problem in a non-linear formulation allows us to consider the redistribution of efforts between the piles through the grillage, because of which, by changing the location of the piles, it is possible to obtain an optimal design solution for both the pile foundation and the overhead part of the building.

1. Shashkin, V.A. Effekty vzaimodejstviya osnovanij i sooruzhenij [Effects of interaction between bases and structures]. Urban Development and Geotechnical Construction. 2012. No. 14. Pp. 141-167. (in Russian)

2. Shashkin A.G., Shashkin K.G. Vzaimodejstvie zdaniya i osnovaniya: metodika rascheta i prakticheskoe primenenie pri proektirovanii [Interaction of building and foundation: calculation method and practical application in design]. Saint-Petersburg, Stroyizdat. 2002 . 48 p. (in Russian)

3. Ilyichev V.A., Mangushev R.A. Spravochnik geotekhnika. Osnovaniya, fundamenty i podzemnye sooruzheniya [Reference book of geotechnics. Foundations, foundations and underground structures] Moscow, Publishing house ASV. 2014.728 p. (in Russian)

4. Shashkin A.G., Ulitskiy V.M. Osnovy monitoringa mekhanicheskoj bezopasnosti sooruzhenij pri stroitelstve i ekpluatacii [Fundamentals of monitoring the mechanical safety of structures during construction and operation], Promyshlennoe i grazhdanskoe stroitel’stvo. 2017. No. 12. S. 6-14.5. Shulyat’ev O.A. Osnovaniya i fundamenty vysotnyh zdanij [Foundations and foundations of high-rise buildings]. M., 2016.392 p. (in Russian)

5. Karpenko N.I., Karpenko S.N., Kuznetsov E.N., O sovremennyh problemah rascheta vysotnyj zdanij iz monolitnogo zhelezobetona [On modern problems of calculating high-rise buildings from monolithic reinforced concrete]. Vserossijskaya (Mezhdunarodnaya) konferenciya. Beton i zhelezobeton – puti razvitiya. Nauchnye trudy konferencii v pyati knigah. 2005; 1: 149-166 (in Russian)

6. Shulyat’ev O.A. Osnovaniya i fundamenty vysotnyh zdanij [Foundations and foundations of high-rise buildings]. Moskow, 2016. 392 p. (in Russian)

7. Shulyat’ev O.A. Fundamenty vysotnyh zdanij [Foundations of high-rise buildings] Vestnik PNIPU. Stroitel’stvo i arhitektura. 2014; 4: 202-244. (in Russian)

8. Shulyat’ev O.A. Geotekhnicheskie osobennosti proektirovaniya vysotnyh zdanij v Moskve [Geotechnical features of the design of high-rise buildings in Moscow]. Industrial and civil construction. 2016; 10: 17-25. (in Russian)

9. Harichkin A.I., Bezvolev S.G., Shulyan’ev O.A. Shulyanev O.A. Prakticheskoe issledovanie kraevoj svai [Practical research of the edge pile]. Coll. scientific works 75 years of NIIOSP them. N.M. Gersevanov. 2006. 224- 230. (in Russian)

10. Kolchunov V.I., Potapov V.V., Dmitrieva K.O. Raschetnyj analiz dlitelnogo deformirovaniya sistemy «zdanie-osnovanie» hranilishcha yadernyh othodov AES [Computational analysis of long-term deformation of the “building-foundation” system of the nuclear waste storage facility for nuclear power plants]. Construction and reconstruction. 2017; 3 (71): 27-33. (in Russian)

11. Sapozhnikov A.I., Grigorshev S.M. Uchet posledovatel’nosti vozvedeniya zdanij metodom konechnyh elementov s poetazhnym formirovaniem raschetnoj modeli [Accounting for the sequence of erection of buildings by the finite element method with floor-by-floor formation of the computational model]. Structural mechanics and calculation of structures. 2010; 1: 19-26. (in Russian)

12. Kabantsev O.V., Tamrazyan A.G. Uchet izmenenij raschetnoj skhemy pri analize raboty konstrukcii [Considering changes in the design scheme when analyzing the work of the structure]. Inzhenerno-stroitelnyj zhurnal. 2014; 5: 15-26. (in Russian)

13. Almazov V.O., Klimov A.N. Eksperimental’noe issledovanie napryazhenno-deformirovannogo sostoyaniya konstrukcij vysotnogo zdaniya [Experimental study of the stress-strain state of high-rise building structures]. Vestnik MGSU. 2013; 10: 102-109. (in Russian)

14. L.V. Nuzhdin, V.S. Mikhailov Chislennoe modelirovanie svajnyh fundamentov v raschetno-analiticheskom komplekse SCAD Office [Numerical modeling of pile foundations in the computational and analytical complex SCAD Office]. Vestnik PNIPU. Stroitelstvo i arhitektura. 2018; 1: 5-18. (in Russian)

15. Nuzhdin M.L., Ponomarev A.B. Ponomarev A.B. Raschetnoe obosnovanie usileniya gruntovogo osnovaniya mnogoetazhnogo zhilogo doma v g. Novosibirske paketnym vysokonapornym inecirovaniem. Problemy stroitelnogo proizvodstva i upravleniya nedvizhimostyu [Calculation substantiation of strengthening the soil base of a multi-storey residential building in Novosibirsk by high-pressure batch injection]. Problems of construction production and real estate management. 2020. 261-266. (in Russian)

16. Mikhailov V.S., Teplykh A.V. Uchet harakternyh osobennostej razlichnyh modelej osnovaniya pri raschete vzaimnogo vliyaniya zdanij na bolshih fundamentnyh plitah s ispolzovaniem raschetno-analiticheskoj sistemy SCAD Office. VI Mezhdunarodnyj simpozium [Considering the characteristic features of various foundation models when calculating the mutual influence of buildings on large foundation slabs using the SCAD Office analytical system]. Aktualnye problemy kompyuternogo modelirovaniya konstrukcij i sooruzhenij. 2016. 133-134. (in Russian)

17. Korolev K.V., Polyankin A.G., Kuznetsov A.A. Nesushchaya sposobnost svaj na gorizontalnuyu i momentnuyu nagruzku i optimalnoe proektirovanie svajnyh fundamentov [Bearing capacity of piles for horizontal and moment loads and optimal design of pile foundations]. Transport construction. 2013; 3: 13-15. (in Russian)

18. Malyshkin A.P., Esipov A.V., Baranyak A.I. Sovremennyj podhod k proektirovaniyu vysotnyh zdanij v usloviyah plotnoj gorodskoj zastrojki [A modern approach to the design of high-rise buildings in a dense urban development]. Vestnik Moskovskogo gosudarstvennogo stroitel’nogo universiteta. 2008; 2: 158-162. (in Russian)

19. Platonova S.V., Alexandrova E.A. Modelirovanie sistemy «zdanie–osnovanie» v raschetnom programmnom komplekse LIRA–SAPR s primeneniem sistemy grunt. Problemy stroitelnogo proizvodstva i upravleniya nedvizhimostyu [Modeling of the “building-base” system in the LIRA-SAPR computational software package using the soil system]. Problems of construction production and real estate management. 2020. 267-274. (in Russian)

20. Yushchube S.V., Podshivalov I.I., Samarin D.G., Filippovich A.A., Shalginov R.V. Eksperimentalnoe issledovanie napryazhenno-deformirovannogo sostoyaniya fragmentov kladki naruzhnyh sten iz keramicheskogo kamnya [Experimental study of the stress-strain state of fragments of the masonry of external walls made of ceramic stone]. Vestnik TSUAB. 2017; 1: 174-180. (in Russian)

21. Yushchube S.V., Podshivalov I.I., Filippovich A.A., Tryapitsin A.E. Modelirovanie napryazhenno-deformirovannogo sostoyaniya kirpichnogo zdaniya povyshennoj etazhnosti na svajnom fundamente [Modeling the stress-strain state of a brick building of increased number of storeys on a pile foundation]. Bulletin of Civil Engineers. 2018; 4 (69): 72-77. (in Russian)

22. Yushchube S.V., Podshivalov I.I. Modelirovanie napryazhenno-deformirovannogo sostoyaniya svajnogo fundamenta s plitnym rostverkom vysotnogo zdaniya s uchetom nedopogruzheniya svaj [Modeling the stressstrain state of a pile foundation with a slab grillage of a high-rise building, considering the undershooting of piles]. Vestnik Tomskogo gosudarstvennogo arhitekturno-stroitel’nogo universiteta. 2020; 22 (2): 145-161. (in Russian)

23. Kravchenko V.S., Kriksunov E.Z., Perelmuter M.A., Skoruk L.N. SCAD Structure. Raschet osnovanij i fundamentov. Rukovodstvo polzovatelya [SCAD Structure. Calculation of bases and foundations]. Moscow. 2006. 33 p. (in Russian)

24. Kovalchuk O.A., Kolesnikov A.V., Rusanova E.M. and others. Vvedenie v programmnyj kompleks LIRA 10.4. [Introduction to the LIRA software package 10.4.]. Moscow, NRU MGSU, 2015. (in Russian)

25. Brinkgreve R.B.J., Broere W., Abingdon E.A. PLAXIS 3D Foundation. Balkema, 2004; 1.1.