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Description
  • V dynamické studii byl sledován vliv poškození na změnu modálních charakteristik železobetonové desky. Desky byly zatěžovány tak, aby byl ve střední třetině vyvozen konstantní ohybový moment. Zatěžování proběhlo v několika statických a dynamických únavových stupních. Před začátkem testu a po každém zatěžovacím stupni byla provedena modální analýza. Takto zjištěné modální charakteristiky byly vzájemně porovnány pomocí pěti různých metod. Výsledky byly porovnány se zjištěnou skutečnou polohou poškození. (cs)
  • The paper describes the analysis of dynamic behavior changes of four reinforced concrete slabs in dependence on their damages. The reinforced concrete slabs were tested in four-point bending to get a constant bending moment in the mid-section of the slabs. The state deterioration of the slabs was done by static and dynamic fatigue loads in several steps. After each load step, a complete experimental modal analysis was carried out. Modal characteristics estimated after each load step were mutually compared using five different methods. The identification of the damage of the slabs was done based on a position and a size of the determined values from each method. The results were compared with the measured positions of the real damages.
  • The paper describes the analysis of dynamic behavior changes of four reinforced concrete slabs in dependence on their damages. The reinforced concrete slabs were tested in four-point bending to get a constant bending moment in the mid-section of the slabs. The state deterioration of the slabs was done by static and dynamic fatigue loads in several steps. After each load step, a complete experimental modal analysis was carried out. Modal characteristics estimated after each load step were mutually compared using five different methods. The identification of the damage of the slabs was done based on a position and a size of the determined values from each method. The results were compared with the measured positions of the real damages. (en)
Title
  • An Analysis of Dynamic Behavior of Damaged Reinforced Concrete Slabs
  • An Analysis of Dynamic Behavior of Damaged Reinforced Concrete Slabs (en)
  • Analýza dynamického chování poškozených železobetonových desek (cs)
skos:prefLabel
  • An Analysis of Dynamic Behavior of Damaged Reinforced Concrete Slabs
  • An Analysis of Dynamic Behavior of Damaged Reinforced Concrete Slabs (en)
  • Analýza dynamického chování poškozených železobetonových desek (cs)
skos:notation
  • RIV/68407700:21110/05:01110736!RIV09-MSM-21110___
http://linked.open...avai/riv/aktivita
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  • 511884
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  • RIV/68407700:21110/05:01110736
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  • CAMOSUC; COMAC; crack; damage detection; fatigue; modal analysis; modal flexibility matrix; natural frequency; natural mode (en)
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  • [5257489CC111]
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  • Praha
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  • Development of Experimental Methods for Evaluation of Functional Properties of Buildings
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  • Plachý, Tomáš
  • Polák, Michal
number of pages
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  • České vysoké učení technické v Praze
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  • 80-01-03283-3
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  • 21110
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