WE FOCUS ON EVALUATIONS AND STRUCTURAL UPGRADINGS OF EXISTING STRUCTURES

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mrizka mala | M.L. Structural, spol. s r.o. (Ltd.)
01

Foundations of industrial machines generating dynamic effects into the civil structure or into the subsoil

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  • Design of new foundations for industrial machines generating mechanical vibrations according to customer requirements: optimization of the shape and material solution of the foundation.
  • Design of anti-vibration mounting of machine foundations in order to meet the criteria for maximum allowable vibrations; types of anti-vibration insulation commonly used for machine foundations: spring vibration adsorbing elements (insulators) spring elements with integrated dampers anti-vibration rubbers.
  • Design and upgrading of existing machine foundations according to dimensional and loading parameters of the new equipment.
  • Design of structural repairs of existing machine foundations.
  • Technical assistance in solving problems with excessive mechanical vibrations of machines located on the foundation or on the floors of buildings.
  • Assessment of building structures subjected to loads from industrial machines generating dynamic effects, design of countermeasures.
  • Design and verification of anchorage of industrial machines at seismic regions.
  • Design of noise enclosures for turbine equipment.
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02

Assessments of safety-related buildings and structures of nuclear power plants

elipsa svetlo | M.L. Structural, spol. s r.o. (Ltd.)
  • Elaboration of a detailed spatial computational model of the building in the program Staad.Pro on the basis of archival documentation and verification of the actual as-built state by a walk-down.
  • Assessment of the effects of earthquake by dynamic analysis of the building response using the Response Spectrum Method or dynamic Time History Analysis. Determination of the ultimate seismic capacity (HCLPF) of sub-structures and the building as a whole.
  • Assessment of the effects of extreme snow load, determination of the ultimate level of roof load from snow weight.
  • Evaluation of the effects of extreme wind on the structures of buildings or stacks, determination of the ultimate level of wind load (wind pressure and wind speed).
  • Design of the building structure on the effects of pressure waves generated by external explosions, determination of the maximum sustainable level of load from pressure waves (ultimate level of overpressure).
  • Proposals for additional structural upgrading of the building in case of unsatisfactory result – additional bracing of the building structure, reinforcement of column anchoring into the foundations, strengthening of roof beams.
  • Generation of seismic floor response spectra, that are essential for assessment of safety-related equipment at specific elevations floors of the building.
  • Review of design criteria for safety-related buildings and structures of nuclear power plants.
  • Processing of input documents for the structural part of the safety documentation of nuclear facilities
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03

Natural draught and forced draught cooling towers

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  • Computational assessment of cooling towers on models using the Finite Element Method subjected to different types of loads: wind, earthquake, temperature load, nonuniform settlement of foundations.
  • Proposals for optimization of repairs of the shells of hyperbolic natural draught cooling towers and determination of conditions for the executions of reconstruction works based on the results of in-situ structural survey.
  • Structural design and optimization of the interior cooling structures.
  • Structural upgrading design of existing natural draught and forced draught (fan) cooling towers including seismic upgrading.
  • Design of special structures such as protective structures against impacts of flying objects into the diffuser of the fan cooling tower.
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04

Anti-vibration insulation for buildings, Industrial storage racking systems

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  • Residential buildings – countermeasures against propagation of mechanical vibrations from the subsoil to residential buildings – design of vibration-absorbing insulation to be placed under the residential part of the buildings, situated in locations with high vibration demand (near railways or tramways) is based on dynamic measurement at future site.
  • Industrial storage rack systems – design and verification of mobile bases for rack systems at seismic regions.
  • Design and evaluation of steel structures of industrial facilities.
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See our references
and completed projects

elipsa svetlo | M.L. Structural, spol. s r.o. (Ltd.)
mrizka mala | M.L. Structural, spol. s r.o. (Ltd.)
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elipsa svetlo | M.L. Structural, spol. s r.o. (Ltd.)
+420 603 100 151

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m.l.structural@post.cz

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Podnikatelská 539, 190 11 Praha 9

Běchovice, Czech Republic

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Implemented projects

Dukovany NPP

Assessment of the ultimate resistance of safety related buldings subjected to extreme snow load.

2012
ČEZ-EDU
Dukovany NPP

CS 584/1-01 Central pumping station I, CS 805/1-01 Longitudinal gallery - Uníts 1&2, CS 490/1-01 Machine hall I, CS 800/1-02 Reactor building I: evaluation of the ultimate resisnance of buildings subjected to extreme wind and snow loads.

2012
EGP Invest,s.r.o. (ČEZ-EDU)
Hazlov, West Bohemial, CS 02 Gym bulding

Strengthening of the existing school gym building against earthquake and wind loads.

2015
Hazlov
Dukovany NPP

CS 490 Machine hall - structural evaluation of the building subjected to actions of extremal wind and snow loads, incl. design of structural upgrading.

2013-2015
EGP Invest,s.r.o. (ČEZ-EDU)
Hazlov

West Bohemial, CS 02 Gym bulding: Strengthening of the existing school gym building against earthquake and wind loads.

2015
EGP Invest,s.r.o. (ČEZ-EDU)
Dukovany NPP, CS 490 Machine hall

Structural evaluation of the building subjected to actions of extremal wind and snow loads, incl. design of structural upgrading.

2013-2015
EGP Invest,s.r.o. (ČEZ-EDU)
Mochovce NPP (Slowakia), CS 805/1-02 Loangitudinal gallery – units 3&4

Static and dynamic analysis Spring support design for feed-water tank – Revised Design.

1916
ÚJV Řež a.s.
Mochovce NPP (Slovakia), Units 1&2. CS 801/01

Auxiliary building I. Evaluation of seismic safety and design of structural upgrading.

2018
EGP Invest,s.r.o. (SE a.s.)
Mochovce NPP (Slovakia), completion of Units 3&4, CS 580/1-04, 580/1-05, 580/1-06

Forced Draught Cooling Towers.Steel Structures of the piezometric tank supporting structures - structural analysis (seismic, wind and temperature loads).

2019
ÚJV Řež a.s.
ČEZ a.s., Temelín NPP, CS 653 Fire station

Design of seismic upgrading incl.extreme climatic loads.

2012-2013
ÚJV Řež (ČEZ-ETE)
Project T14

Science Park of the prof. List. Builoding of the VUT PPV. Structural design of the foundation for an experimantal motor-generator (design of resilient mounting).

2012
Siemens s.r.o.
Dukovany NPP

Ultimate Heat Sink building. DPS 49.01 a 3.49.01 Forced draught cooling towers of the UHS. Structural analysis of steel structures.

2013
REKO Praha a.s.:
OEZ Letohrad

Foundation for experimental motor-generator. Feasibility study and Detailed Design documentation.

2014
OEZ s.r.o. Letohrad
Dukovany NPP

Assessment of safety related buldings sibject to blast-generated pressure wave loads.

2015-2016
AMEC Foster Wheel s.r.o. (Jacobs Clean Energy, s.r.o.)
Mochovce NPP (Slovakia)

Project IPR EMO20400 Seismic Re-evaluation of the Mochovce NPP, Units 1&2 subject to new seismic load. CS 580/1-01, SO 580/1-02, SO 580/1-03 Forced Draught Coolong Towers. Design of seismic upgrading.

2017
REKO Praha a.s. (SE a.s.)
Project RIVERPARK Modřany, building C

Design of anti-vibration measures for the 13-floor residential building. Desingm of spring insulator elements.

2019
STAVEX Praha,s.r.o.
Dukovany NPP

Static and seismic asseeement of the Spent fuel intermediate storage building CS M.840.

2020
ČEZ-EDU
ČEZ a.s., Temelín NPP

Assessment of teh origin of longitudinal cracks in columns of natural draught cooling towers 1 - 4. Analysis of temperature field and evaluation of thermal stresses in prefabricated parts after casting.

2021
ČEZ-ETE
Mochovce NPP (Slovakia), project IPR EMO61700

Upgrading of the cooling system incl. civil part of the coolong towe CS 581/01-02,04. Structural analysis and input data for reinforcement drawings.

2021
REKO Praha a.s. (SE a.s.)
Mochovce NPP (Slovakia), completion of Units 3&4, CS 442/1-02

Diesel generator Station II - Assessment of joints of the steel structure. Structural analysis (seismic, extreme wind load).

2021
ÚJV Řež a.s. (SE a.s.)
ČEZ a.s., Dukovany NPP

Design of a seismically resistant storage shelf for scaffolding in the lengthwise side electrical building.

2021
ČEZ-EDU
Veolia Energie ČR (contractor Siemens ENERGY s.r.o.), PP Ostrava-Třebovice

Upgrading of the turbine&generator foundation TG17. Design of GERB spring insulators and structural modifications of the T&G foundation.

2021
projekce PSB a.s. Brno