Structural analysis of a failured RC beam with openings in a building under construction

• Autorzy: Zdanowicz Ł. , Wojdak R.

Warianty tytułu

PL

Analiza stanu awaryjnego belki żelbetowej z otworami w nowo wznoszonym budynku

• Języki publikacji: EN

Abstrakty

EN

Examples of defectively constructed-designed and constructed openings in RC beams in a building under construction were presented in the paper. As a result of errors in the design and construction-construction phases, the beams could not fulfil their function. The state of the considered beam with openings was defined as critical (a failure). The results of an analysis of the designed and constructed-constructed state showed differences in the static performance of the structure. However, the redistribution of internal forces is not significant because of the relatively stiff floor slab which takes over the loads from beams. This paper can also provide a background for a more general discussion about the present quality of coordination between design and construction of building structures.

PL

W artykule przestawiono przykłady błędnie wykonanych otworów w belkach żelbetowych nowo wznoszonego budynku. Na skutek błędów projektowo-wykonawczych belki nie mogły spełniać swojej funkcji. Stan analizowanej belki z otworami określono jako awaryjny. Wyniki obliczeń stanu projektowanego i istniejącego wykazały różnice w pracy statycznej konstrukcji. Redystrybucja sił wewnętrznych nie jest jednak znacząca z powodu zastosowanej względnie sztywnej płyty stropowej, która przejmuje na siebie obciążenia z belek.

Słowa kluczowe

EN

beam openings; failure; construction-construction errors; RC structures

PL

otwory w belce; awaria; błędy wykonawcze; konstrukcje żelbetowe

• Wydawca: Wydawnictwo Politechniki Krakowskiej im. Tadeusza Kościuszki
• Czasopismo: Czasopismo Techniczne. Budownictwo
• Rocznik: 2013
• Tom: R. 110, z. 2-B
• Strony: 157--168
• Opis fizyczny: Bibliogr. 13 poz., il., tab.

Twórcy

autor

Zdanowicz Ł.

• Institute of Building Materials and Structures, Faculty of Civil Engineering, Cracow University of Technology

autor

Wojdak R.

• Chair of Concrete Structures and Concrete Technology, Faculty of Civil and Environmental Engineering, Gdansk University of Technology

Bibliografia

• [N1] PN-82/B-02000 Actions on building structures. Principles of the establishment of the values (in Polish).
• [N2] PN-82/B-02001 Actions on building structures. Permanent actions (in Polish).
• [N3] PN-82/B-02003 Actions on building structures. Variable actions during exploitation and assembling (in Polish).
• [N4] PN-B-03264:2002/Ap1:2004 Plain, reinforced and prestressed concrete design – Analysis and structural design (in Polish).
• [N5] PN-EN 1992-1-1:2008/Ap1:2010/NA:2010/AC:2011 Eurocode 2: Design of concrete structures – Part 1-1: General rules and rules for buildings (in Polish).
• [1] Construction project of building structure, Project no. …026/09, (confidential data), 2010.
• [2] Bąk G., Stress redistribution in result of opening constructed in reinforced concrete beam [in:] Civil and Environmental Engineering, Vol. 1, No. 2, 2010, 99-110
• [3] Knauff M. et al., Plain, reinforced and prestressed concrete structures. Scientific commentary for PN-B-03264:2002, Vol. 1, Building Research Institute, Warsaw 2005.
• [4] Kobiak J., Mistakes of reinforced concrete structures, Arkady, Warsaw 1973.
• [5] Starosolski W., Reinforced concrete structures according to Eurocode 2 and other connected standards, Vol. 3, PWN, Warsaw 2012.
• [6] Starosolski W., Computational modelling of concrete structures. Selected problems, Vol. 1 and 2, Silesian University of Technology Publ., Gliwice 2012.
• [7] Wojdak R., Unusual author’s building structures, Gdansk University of Technology Publ., Gdańsk 2010.
• [8] Zdanowicz Ł., Engineer of Tomorrow – Human or Machine?, 7th Students’ Science Conference, Wroclaw 2009.