Seismic performance of brick infilled RC frame structures in low and medium rise buildings in Bhutan

Dorji, Jigme (2009) Seismic performance of brick infilled RC frame structures in low and medium rise buildings in Bhutan. Masters by Research thesis, Queensland University of Technology.


The construction of reinforced concrete buildings with unreinforced infill is common practice even in seismically active country such as Bhutan, which is located in high seismic region of Eastern Himalaya. All buildings constructed prior 1998 were constructed without seismic provisions while those constructed after this period adopted seismic codes of neighbouring country, India. However, the codes have limited information on the design of infilled structures besides having differences in architectural requirements which may compound the structural problems. Although the influence of infill on the reinforced concrete framed structures is known, the present seismic codes do not consider it due to the lack of sufficient information. Time history analyses were performed to study the influence of infill on the performance of concrete framed structures. Important parameters were considered and the results presented in a manner that can be used by practitioners. The results show that the influence of infill on the structural performance is significant. The structural responses such as fundamental period, roof displacement, inter-storey drift ratio, stresses in infill wall and structural member forces of beams and column generally reduce, with incorporation of infill wall. The structures designed and constructed with or without seismic provision perform in a similar manner if the infills of high strength are used.

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ID Code: 29689
Item Type: QUT Thesis (Masters by Research)
Supervisor: Thambiratnam, David, Perera, Nimal, & Yousefi, Mostafa
Keywords: Infilled frames, seismic response, influence, RC buildings, stiffness, performance, infill, inter-storey drift ratios, fundamental period, soft-storey
Divisions: Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering
Institution: Queensland University of Technology
Deposited On: 14 Jan 2010 04:23
Last Modified: 28 Oct 2011 19:54

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