Wyniki wyszukiwania - BazTech

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The durability prediction of deteriorating reinforced concrete members

Lukoseviciene O., Kudzys A.

Zeszyty Naukowe Politechniki Rzeszowskiej. Budownictwo i Inżynieria Środowiska

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2009

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z. 53 [265]

109-118

EN

The features of durability prediction and concepts of time-dependent reliability analysis of deteriorating reinforced concrete structures subjected to extreme gravity and lateral actions as rectangular pulse renewal processes are discussed. New methodological approaches to a time-dependent survival probability analysis and durability prediction of reinforced concrete members are considered. The safety margin of particular members is modeled as a random finite sequence. The effect of coincident recurrent extreme actions on their survival probabilities is analyzed. The instantaneous and long-term survival probabilities of particular and structural members of deteriorating structures are considered. It is recommended to calculate these probabilities by the unsophisticated analytical method of transformed conditional probabilities. The technical service life as a quantitative durability parameter of deteriorating structural members is studied.

2

Transformed conditional probabilities in the analysis of stochastic sequences

Kudzys A.

Journal of Polish Safety and Reliability Association

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2007

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Vol. 2

243--250

EN

The need to use unsophisticated probability-based approaches and models in the structural safety analysis of the structures subjected to annual extreme service, snow and wind actions is discussed. Statistical parameters of single and coincident two extreme variable actions and their effects are analysed. Monotone and decreasing random sequences of safety margins of not deteriorating and deteriorating members are treated, respectively, as ordinary and generalized geometric distributions representing highly-correlated series systems. An analytical analysis of the failure or survival probabilities of members and their systems is based on the concepts of transformed conditional probabilities of safety margin sequences whose statistically dependent cuts coincide with extreme loading situations of structures. The probability-based design of members exposed to coincident extreme actions is illustrated by a numerical example.

3

Badania monolitycznego połączenia ściany żelbetowej z płytą stropową

Kudzys A.

Inżynieria i Budownictwo

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2000

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R. 56, nr 7

368-370

PL

Przedstawiono wyniki badań doświadczalnych i analiz obliczeniowych zachowania się nośności połączeń monolitycznej ściany żelbetowej z wielootworową płytą stropową prefabrykowno-monolityczną.

EN

For RC monolithic wall, joined with cored precast or monolithic floor slab analythical and experimental investigations were carried out and results reported.