Behavior of wet precast beam column connections under progressive collapse scenario: an experimental study
Tóm tắt
Progressive collapse denotes a failure of a major portion of a structure that has been initiated by failure of a relatively small part of the structure such as failure of any vertical load carrying element (typically columns). Failure of large part of any structure will results into substantial loss of human lives and natural resources. Therefore, it is important to prevent progressive collapse which is also known as disproportionate collapse. Nowadays, there is an increasing trend toward construction of buildings using precast concrete. In precast concrete construction, all the components of structures are produced in controlled environment and they are being transported to the site. At site such individual components are connected appropriately. Connections are the most critical elements of any precast structure, because in past major collapse of precast structure took place because of connection failure. In this study, behavior of three different 1/3rd scaled wet precast beam column connections under progressive collapse scenario are studied and its performance is compared with monolithic connection. Precast connections are constructed by adopting different connection detailing at the junction by considering reinforced concrete corbel for two specimens and steel billet for one specimen. Performance of specimen is evaluated on the basis of ultimate load carrying capacity, maximum deflection and deflection measured along the span of the beam. From the results, it is observed that load carrying capacity and ductility of precast connections considered in this study are more than that of monolithic connections.
Tài liệu tham khảo
Alashker Y, Li H, El-Tawil S (2011) Approximations in progressive collapse modeling. J Struct Eng 137:914–924
Bureau of British Standards (1997) Structural use of concrete Part-1 Code of practice for design and construction (BS 8110-1). London
Bureau of Indian Standards (2000) Indian standard code of practice for plain and reinforced concrete (IS: 456). New Delhi, India
Bureau of Indian Standards (2002) Criteria for earthquake resistant design of structures (IS: 1893), New Delhi, India
Bureau of Indian Standards (2003) Ductile detailing of reinforced concrete structures subjected to seismic forces: code of practice (IS: 13920). New Delhi, India
Bureau of Indian Standards (2009) Concrete mix proportioning guidelines (IS: 10262). New Delhi, India
Chen J, Peng W, Ma R, He M (2012) Strengthening of horizontal bracing on progressive collapse resistance of multi-storey steel moment frame. J Perform Constr Facil 26:720–724
Choi HK, Choi YC, Choi CS (2013) Development and testing of precast concrete beam-to-column connections. Eng Struct 56:1820–1835
Department of Defense (DoD) (2013) Design of buildings to resist the progressive collapse, Unified Facilities Criteria (UFC 4-023-03)
Elliot KS (2002) Precast concrete structures. Butterworth-Heinemann Publications, Great Britain
Ertas O, Ozden S, Ozturan T (2006) Ductile connections in precast concrete moment resisting frames. PCI J 5:2–12
Joshi MK, Murty CVR, Jaisingh MP (2005) Cyclic behaviour of precast RC connections. Indian Conc J 79:43–50
Kai Q, Li B (2012) Experimental and analytical assessment on RC interior beam-column subassemblages for progressive collapse. J Perform Constr Facil 26:576–589
Lew H, Main J, Robert S, Sadek F, Chiarito V (2013) Performance of steel moment connections under a column removal scenario. I: experiments. J Struct Eng 139:98–107
Main JA, Bao Y, Lew HS, Sadek F (2014) Robustness of precast concrete frames: experimental and computational studies. In: Proceedings of Structures Congress, ASCE, pp 2210–2220
Marjanishvili S (2004) Progressive analysis procedure for progressive collapse. J Perform Constr Facil 18:79–85
Marjanishvili S, Agnew E (2006) Comparison of various procedures for progressive collapse analysis. J Perform Constr Facil 20:365–374
Maya LF, Zanuy C, Albajar L, Lopez C, Portabella J (2013) Experimental assessment of connections for precast concrete frames using ultra high performance fibre reinforced concrete. Constr Build Mat 48:173–186
Parastesh H, Hajirasouliha I, Ramezani R (2014) A new ductile moment-resisting connection for precast concrete frames in seismic regions: an experimental investigation. Eng Struct 70:144–157
Precast/Prestressed Concrete Institute (2010) PCI design handbook: precast and prestressed concrete, 7th edn. USA
Sadek F, Main J, Lew H, Bao Y (2011) Testing and analysis of steel and concrete beam-column assemblies under a column removal scenario. J Struct Eng 137:881–892
Shariatmadar H, Beydokhti EZ (2014) An investigations of seismic response of precast concrete beam to column connections: experimental study. Asian J Civ Eng 15:41–59
Su Y, Tan Y, Song X (2009) Progressive collapse resistance of axially-restrained frame beams. ACI Struct J 106:600–607
Tsai MH, Lin BH (2008) Investigation of progressive collapse resistance and inelastic response for an earthquake-resistant RC building subjected to column failure. Eng Struct 30:3619–3628
U. S. General Service Administration (GSA) (2003) Progressive collapse analysis and design guidelines for new federal office buildings and major modernization projects. U. S. General Service Administration, USA
Vidjeapriya R, Jaya KP (2012) Experimental investigation of precast concrete beam-column wet connection under cyclic loading. In: Proc Struct Eng Conv (SEC), pp 287–292
Vidjeapriya R, Jaya KP (2013) Experimental study on two simple mechanical precast beam-column connections under reverse cyclic loading. J Perform Constr Facil 27:402–414
Vidjeapriya R, Jaya KP (2014) Behaviour of precast beam-column mechanical connections under cyclic loading. Asian J Civ Eng (Build Hous) 13:233–245
Xue W, Yang X (2010) Seismic tests of precast concrete, moment resisting frames and connections. PCI J 55:102–121
Yu J, Tan K (2013a) Experimental and numerical investigation on progressive collapse resistance of reinforced concrete beam column sub-assemblages. Eng Struct 55:90–106
Yu J, Tan K (2013b) Structural behavior of reinforced concrete beam-column sub-assemblages under a middle column removal scenario. J Struct Eng 139:233–250