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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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| 4 |
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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Abstract:
The aim of the work - development of one of the possible methods for seismic analysis that considers the inelastic behavior of structures under seismic loads. This requires the development of seismic analysis methods that take into account the change (decrease) in the bearing capacity or the destruction of individual elements until the final loss of the bearing capacity of the structure. Methods. The dependences and algorithms include determining seismic forces using the method of normal forms, which until now is the main one in solving problems of the seismic resistance theory in seismic regions, calculation formulas to calculate seismic forces at each time step are presented in the form of expansions into natural vibration modes, which regard the changes in the design scheme. The calculation is repeated at each time step as a static calculation for the action of seismic forces determined at the previous stage, before the building collapses. Results. The developed dependencies and algorithms allow to consider changes in the design scheme during vibrations at each time step, changes in the dynamic properties of the building and, as a result, the values of seismic forces. The value of the coefficient of inelastic work of structures K 1, which are given in regulatory documents, do not give fully correspond to the actual behavior of the structure under seismic influences. The proposed calculation method allows to determine the estimated values of seismic forces and their distribution taking into account the influence of damage of elements and the appearance of inelastic zones in the design process of fluctuations at each time step and to assess the dynamic behavior of the building.
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Keyword:
analytical investigation; Architectural engineering. Structural engineering of buildings; destruction of elements; method of normal forms; seismic analysis methods; seismic load; TH845-895
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URL: https://doaj.org/article/4f6a75f14cc74485a6d39212421f3beb
https://doi.org/10.22363/1815-5235-2021-17-4-391-403
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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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| 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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