The influence of concrete cover on the bearing capacity and reliability of the reinforcement concrete slab - column system

• Autorzy: Sieńkowska Katarzyna , Tułecka Agata , Buda-Ożóg Lidia

Identyfikatory

DOI

10.7862/rb.2020.3

• Języki publikacji: EN

Abstrakty

EN

The reliability of building structures is a very important design criterion. The required level of security depends not only on the function and purpose of the facility, but also on the parameters considered at the design stage. There are factors to that with some probability they increase the uncertainty of the adopted parameters in the calculations, as a result of which the structure fails. It happens that execution errors are made during the process of creating an object. One of the significant disadvantages is the increase in the reinforcement cover thickness compared to the designed value, and hence the reduction of the effective depth of cross-section. The purpose of the analyzes presented in the article was to estimate the influence of the top reinforcement cover thickness on the reliability and bending and punching resistance in the reinforced concrete slab being part of the slab-column system. The reliability index βc was determined by the Cornell method. The analysis focused on a fragment of a cross reinforced slab, which is an element of the column-slab structure of a shopping mall. The ARSA 2019 program was used for the analysis of the structure. The impact of the coefficient of variation of the effective depth on the reliability index was also analyzed. The obtained values were compared with the target value of the reliability index read from EN 1990.

Słowa kluczowe

EN

reinforced concrete; flat plate; shear; bending; reliability index

PL

niezawodność; wskaźnik niezawodności; konstrukcja budowlana; zbrojenie; zginanie

• Wydawca: Oficyna Wydawnicza Politechniki Rzeszowskiej
• Czasopismo: Czasopismo Inżynierii Lądowej, Środowiska i Architektury / Journal of Civil Engineering, Environment and Architecture
• Rocznik: 2020
• Tom: Vol. 37, No. 67
• Strony: 33--45
• Opis fizyczny: Bibliogr. 7 poz., rys., tab.

Twórcy

autor

Sieńkowska Katarzyna

• Rzeszow University of Technology, Department of Building Structures, ul. Poznańska 2, 35-959 Rzeszów

• https://orcid.org/0000-0003-1497-5821

autor

Tułecka Agata

• studentka, Rzeszow University of Technology

autor

Buda-Ożóg Lidia

• Rzeszow University of Technology, Department of Building Structures, ul. Poznańska 2, 35-959 Rzeszów

• https://orcid.org/0000-0002-1205-1345

Bibliografia

• [1] Cornell C.: A probabilisty based structural code. American Concrete Institute Journal, 1969, no. 66, pp. 974-985.
• [2] EN 1990, 2002. Eurocode - Basis of structural design. Brussels: CEN.
• [3] EN 1992-1-1(2004) Eurocode 2: Design of concrete structures - Part 1-1 : General rules and rules for buildings, European Committee for Standardization, Brussels.
• [4] Tułecka Agata “Wpływ otulenia zbrojenia górnego na nośność i niezawodność stropu słupowo-płytowego na przykładzie projektu konstrukcyjnego galerii handlowej”. Praca magisterska, Politechnika Rzeszowska, 2020.
• [5] Woliński S., Wróbel K.: Niezawodność konstrukcji budowlanych. Oficyna Wydawnicza Politechniki Rzeszowskiej, Rzeszów 2000.
• [6] https://docplayer.pl/106102289-Halfen-zbrojenie-na-przebicie-i-zbrojenie-na-scinaniebeton-hdb-17-1-pl.html.
• [7] Autodesk Robot Structural Analysis 2019.

Uwagi

Opracowanie rekordu ze środków MEiN, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2022-2023).