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Seismic Analysis and Response of Bare and Masonry-Infilled Reinforced Concrete Frame Structures
Engineering and Construction
Pages 6 (1506 words)
Name: Instructor's name: Course: Date: Seismic Analysis and Response of Bare and Masonry-Infilled Reinforced Concrete Frame Structures Part One: Introduction Multi-storey structures are constructed with infills of bricks or concrete blocks. These infills are functional to the structures that act as a single unit to the structure when connected to the frame.
Since the infill walls play some roles during earthquakes, their design need consideration to withhold lateral forces. From a research conducted out, most concrete structures succumb to seismic loads due to: Failures of beam-column joints as a result of poor reinforcement at the joints and/or poor workmanship in installation of reinforcement beams; Basic failure that results from flexural weakness and or low shear strength; Failure of the infill wall that results from enough shear strength or a flexural strength that is out-of-plane (Griffith, Mike 2008, p.2). The relationship between un-reinforced masonry in-fills and reinforced concrete has led to unique influences in comparison to bare frames or seismic response. The behaviour of the in-fills to seismic loads remains controversial for existing buildings (Magenes, Guido and Pampanin Stefano, 2004). The issues to be addressed are modelling of structural elements and masonry in-fills panels. The analysed model need validation in terms of Beam-Column Subassemblies, single storey frames with infills, Dimension Frame with infills for multi-storey structures. Limitations related to infill panels and joints area also considered (Magenes, Guido and Pampanin Stefano, 2004). ...
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