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Reinforcement of cracked hollow-core slabs during the construction of the building

Autorzy
Treść / Zawartość
Identyfikatory
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
During the implementation of investment processes with the use of ready-made prefabricated elements, undesirable situations may occur that cause scratches, excessive deflections or damage. This is due to the fact that defects occur during transport, storage or incorrect loading of the elements. The conducted tests and technical assessments often allow the use of built-in elements, however, under the conditions of the need to make their reinforcements. This may be due to the scale of damage or defects made during molding and, as a consequence, the implementation of prefabricated elements with too low load capacity. Taking action each time should allow for the implementation of reinforcements of the elements, limiting the need to dismantle them, which would result in their irretrievable destruction. The implementation of reinforcements allows to reduce the generation of waste from new elements and allows for the proper management of already produced prefabricated elements. Used elements with reinforcements should be subject to technical inspection in the same periods as other structural elements. Proper implementation of repairs allows for the final effect to be similar to the parameters of elements free of technical defects. Due to the existing problem of damage to new elements of prefabricated channel ceilings, solutions have been developed that can be used to reinforce the elements without the need to dismantle them from the places of installation, while reducing the time spent on the process.
Rocznik
Tom
Strony
54--62
Opis fizyczny
Bibliogr. 16 poz., rys.
Twórcy
  • Faculty of Civil Engineering and Environmental Sciences, Bialystok University of Technology, Bialystok, Poland
Bibliografia
  • 1. Baryłka A. (2021). Poradnik eksploatacji obiektów budowlanych. Warszawa, Centrum Rzeczoznawstwa Budowlanego.
  • 2. CEN European Committee of Standardization, Eurocode2: Design of Concrete Structures (ENV 1992-1-1), Brussels.
  • 3. Li XH, Wu G, Popal MS, Jiang JB. (2018). Experimental and numerical study of hollow core slabs strengthened with mounted steel bars and prestressed steel wire ropes. Constr Build Mater, 188: 456-469.
  • 4. Kankeri P, Prakash SS, Pachalla SKS. (2018). Experimental and numerical studies on efficiency of hybrid overlay and near surface mounted FRP strengthening of pre-cracked hollow core slabs. Struct, 15: 1-12.
  • 5. Pradeep K, Suriya PS. (2016). Experimental evaluation of bonded overlay and NSM GFRP bar strengthening on flexural behavior of precast prestressed hollow core slabs. Eng Struct, 120: 49-57.
  • 6. Krentowski J. (2015). Disaster of an industrial hall caused by an explosion of wood dust and fire. Eng Fail Anal, 2015; 56: 403-411.
  • 7. Hawkins NM, Ghosh SK. (2006). Shear strength of hollow-core slabs. PCI Jour, 51:110-114.
  • 8. Julio ENBS, Branco FAB, Silva VD. (2004). Concrete-to-concrete bond strength. Influence of the roughness of the substrate surface. Constr Build Mater, 18: 675-681.
  • 9. Yang L. (1994). Design of prestressed hollow-core slabs with reference to web shear failure. Jour of Struct engineer, 120: 2675-2696.
  • 10. Araujo C, Menegazzo A, Loriggio DD, Da Camara JM, Matos N. (2011). Anchorage failure and shear design of hollow-core slabs. Struct Concr, 12: 109-119.
  • 11. Krentowski J, Chyzy T, Dunaj P. (2017). Sudden collapse of a 19th-century masonry structure during its renovation process. Eng Fail Anal, 82: 540-553.
  • 12. Saimoto A, Fujikawa M, Makabe Ch, Yamanaka T. (2010). Stress intensity factors for cracks initiated from a center-holed plate with unsymmetrical lengths under tension. Eng Fail Anal, 17: 838-847.
  • 13. Xiuli Du, Liu Jin. Meso-scale numerical investigation on cracking of cover concrete induced by corrosion of reinforcing steel. Eng Fail Anal, 2014; 39: 21-33.
  • 14. Hegger J, Roggendorf T, Teworte F. (2010). FE analyses of shear-loaded hollow-core slabs on different supports. Magaz Concr Resear, 62: 531-541.
  • 15. Bertagnoli G, Mancini G. (2009). Failure analysis of hollow-core slabs tested in shear. Struct Concr, 10: 139-152.
  • 16. Hegger J, Roggendorf T, Kerkeni N. (2009). Shear capacity of prestressed hollow core slabs in slim floor constructions. Eng Struct, 31: 551-559.
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).
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-7fd04581-d534-44e8-ade0-6031835a7c50
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