Struktura obiektu

Autor:

Pouraminian, Majid ; Pourbakhshian, Somayyeh ; Noroozinejad Farsangi, Ehsan ; Fotoukian, Reza

Współtwórca:

Kuczyński, Tadeusz - red.

Tytuł:

Probabilistic safety evaluation of a concrete arch dam based on finite element modeling and a reliability L-R approach

Tytuł publikacji grupowej:

CEER, nr 29, vol. 4 (2019)

Temat i słowa kluczowe:

Pacoima arch dam ; safety evaluation ; Monte Carlo simulation ; hydrostatic pressure ; random variables ; worst case ; zapora łukowa Pacoima ; ocena bezpieczeństwa ; symulacja Monte Carlo ; ciśnienie hydrostatyczne ; zmienne losowe

Abstract:

The safety assessment of the Pacoima arch dam is investigated in this paper. A Load - Resistance (L-R) method was used to ensure that the dam is safe or if it is at risk of failure. The "probabilistic design system" ANSYS finite element software was used to calculate the probability of failure. The Monte Carlo (MC) method with 50,000 iterations utilized for simulation and the Latin Hypercube method were used for Sampling. ; Input random variables with normal distribution and coefficient of variation of 15% due to uncertainties were considered and the six random variables used are the concrete modulus of elasticity, Poisson`s ratio of concrete, concrete mass, up-stream normal water level of the reservoir, and the allowable tensile and compressive strength of the concrete. ; Linear elastic behavior was assumed for the constitutive law of concrete material and if the stress exceeds the allowable stress of the concrete this is considered as a failure limit state. The maximum and minimum principal stresses were considered as the output parameter. Dam body safety was investigated only under self-weight and upstream hydrostatic pressure at the normal water level [...]

Opis:

tytuł dodatkowy: Prace z Inżynierii Lądowej i Środowiska

Wydawca:

Zielona Góra: Oficyna Wydawnicza Uniwersytetu Zielonogórskiego

Data wydania:

2019

Typ zasobu:

artykuł

Format:

application/pdf

DOI:

10.2478/ceer-2019-0044

Strony:

62-78

Źródło:

Civil and Environmental Engineering Reports (CEER), no 29, vol. 4

Jezyk:

eng

Licencja CC BY-NC-ND 3.0:

kliknij tutaj, żeby przejść

Prawa do dysponowania publikacją:

Biblioteka Uniwersytetu Zielonogórskiego