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The economic feasibility of taking into account the joint work of load-bearing and enclosing elements in large-span wooden spatial structures
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In: Structural Mechanics of Engineering Constructions and Buildings, Vol 17, Iss 6, Pp 664-678 (2021) (2021)
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| 2 |
Experimental study of elastic-plastic deformation of a cylindrical shell made of steel 45
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In: Structural Mechanics of Engineering Constructions and Buildings, Vol 17, Iss 5, Pp 519-527 (2021) (2021)
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Structural analysis of high-rise building using ETABS and RSA software
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In: Structural Mechanics of Engineering Constructions and Buildings, Vol 17, Iss 2, Pp 133-139 (2021) (2021)
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The influence of mounted assembly process on the stress-strain state of the lattice dome frame
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In: Structural Mechanics of Engineering Constructions and Buildings, Vol 17, Iss 5, Pp 443-454 (2021) (2021)
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| 5 |
Determination of natural vibration frequencies of reinforced cylindrical shell
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In: Structural Mechanics of Engineering Constructions and Buildings, Vol 17, Iss 6, Pp 628-638 (2021) (2021)
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| 6 |
Geometry of the normal ruled surfaces
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In: Structural Mechanics of Engineering Constructions and Buildings, Vol 17, Iss 6, Pp 562-575 (2021) (2021)
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| 7 |
Stress state analysis of an equal slope shell under uniformly distributed tangential load by different methods
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In: Structural Mechanics of Engineering Constructions and Buildings, Vol 17, Iss 1, Pp 51-62 (2021) (2021)
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| 8 |
Viktor A. Bazhenov (1941-2021)
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In: Structural Mechanics of Engineering Constructions and Buildings, Vol 17, Iss 3, Pp 308-309 (2021) (2021)
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| 9 |
Evaluation of seismic forces under modified structural schemes in the process of vibrations
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In: Structural Mechanics of Engineering Constructions and Buildings, Vol 17, Iss 4, Pp 391-403 (2021) (2021)
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| 10 |
Seismic stability of vibration-insulated turbine foundations depending on the frequency composition of seismic impact
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In: Structural Mechanics of Engineering Constructions and Buildings, Vol 17, Iss 1, Pp 30-41 (2021) (2021)
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Abstract:
The seismic resistance of vibration-insulated turbine foundations is a complex and multifaceted problem that includes many aspects. The turbine foundation is a special building structure that unites parts of the turbine and generator unit into a single machine and it is used for static and dynamic loads accommodation. The number of designed and constructed power plants in high seismic level areas is large and steadily growing. In addition, engineers and designers deal with the issue of the frequency composition of the seismic impact influence on the seismic resistance of vibration-insulated turbine foundations. Dynamic calculations were performed in Nastran software using time history analysis and the finite element method. The main criteria for the seismic resistance of a vibration-insulated turbine foundation are the values of the maximum seismic accelerations in the axial direction at the level of the turbine installation and the values of vibration-insulated foundation maximum seismic displacements (deformations of vibration isolators). The results of the calculation experiments proved a significant effect of seismic action frequency composition on the behavior of the vibration-insulated turbine foundations. Calculations of foundations, taking into account earthquakes of the same intensity, but with different values of the prevailing frequencies of the impact, lead to the differing by several times values of the maximum seismic accelerations at the turbine level and seismic displacements.
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Keyword:
Architectural engineering. Structural engineering of buildings; earthquake; response spectrum; seismic calculation; seismic frequency composition; seismic stability; structural dynamics; TH845-895; vibration-insulated turbine unit foundation
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URL: https://doi.org/10.22363/1815-5235-2021-17-1-30-41
https://doaj.org/article/5447cbc4fade48c6a5fa19242cc5ae94
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| 11 |
Theoretical foundations for calculating bridges for endurance using the kinetic theory of durability of structural materials
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In: Structural Mechanics of Engineering Constructions and Buildings, Vol 17, Iss 3, Pp 219-227 (2021) (2021)
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| 12 |
Innovation structures of very lean roller compacted concrete dams
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In: Structural Mechanics of Engineering Constructions and Buildings, Vol 17, Iss 3, Pp 248-260 (2021) (2021)
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| 13 |
Pavel M. Salamakhin (1930-2021)
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In: Structural Mechanics of Engineering Constructions and Buildings, Vol 17, Iss 3 (2021) (2021)
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| 14 |
Inverted pyramid Azores - an eternal hybrid structure
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In: Structural Mechanics of Engineering Constructions and Buildings, Vol 17, Iss 3, Pp 261-269 (2021) (2021)
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| 15 |
A new direction for calculating the strength of bent reinforced concrete elements along inclined sections with an example of calculating an experimental beam
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In: Structural Mechanics of Engineering Constructions and Buildings, Vol 17, Iss 5, Pp 479-499 (2021) (2021)
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| 16 |
Numerical analysis of cylindrical shell stability interacting with inhomogeneous soil
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In: Structural Mechanics of Engineering Constructions and Buildings, Vol 17, Iss 6, Pp 608-616 (2021) (2021)
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| 17 |
Optimization of channels and I-shaped bended closed profiles with tubular shelves from sheets of different thicknesses
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In: Structural Mechanics of Engineering Constructions and Buildings, Vol 17, Iss 2, Pp 140-164 (2021) (2021)
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| 18 |
Modeling and visualizing of the formation of a snub dodecahedron in the AutoCAD system
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In: Structural Mechanics of Engineering Constructions and Buildings, Vol 17, Iss 1, Pp 42-50 (2021) (2021)
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| 19 |
Mathematical modeling of bending stress waves in an aboveground oil pipeline under unsteady seismic action
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In: Structural Mechanics of Engineering Constructions and Buildings, Vol 17, Iss 6, Pp 639-650 (2021) (2021)
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| 20 |
Stress-strain state of reinforced concrete structures of the LN-1 and LN-2 retaining walls of Zagorskaya PSPP taking into account the opening of interblock joints and the formation of secondary cracks
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In: Structural Mechanics of Engineering Constructions and Buildings, Vol 17, Iss 4, Pp 324-334 (2021) (2021)
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