Title: SEISMIC ASSESEMENT OF RC FRAME BUILDINGS WITH BRICK MASONRY INFILLS
Abstract: Five reinforced RC framed building with brick masonry infill were designed for same seismic hazard in accordance with IS code taking in to consideration of effect of Masonry .Generally these buildings are designed as RC framed structures without regards to structural action of masonry infill walls present In the present paper an investigation has been made to study the behavior of RC frames with various arrangement of infill when subjected to dynamic earthquake (dynamic) loading. The result of bare frame and frame with infill effect are compared and conclusion are made in view of IS -1893(2002) code. 1.0 Introduction : Reinforced concrete frames with Masonry infills are a popular form of construction of high-rise buildings in urban and semi urban areas around the world . The term infilled frame is used to denote a composite structure formed by the combination of a moment resisting plane frame and infill walls. The masonry can be of brick, concrete units, or stones .Usually the RC frame is filled with bricks as non structural wall for partition of rooms .Social and functional needs for vehicle parking, shops, reception etc are compelling to provide an open first storey in high rise building. Parking floor has become an unavoidable feature for the most of urban multistoried buildings. Though multistoried buildings with parking floor (soft storey) are vulnerable to collapse due to earthquake loads, their construction is still widespread. These buildings are generally designed as framed structures without regard to structural action of masonry infill walls. They are considered as non structural elements. Due to this in seismic action, RC frames purely acts as moment resisting frames leading to variation in expected structural response. The effect of infill panels on the response of R/C frames subjected to seismic action is widely recognized and has been subject of numerous experimental and analytical investigations over last five decades. In the current practice of structural design in India masonry infill panels are treated as nonstructural element and their strength and stiffness contributions are neglected. In reality the presence of infill wall changes the behavior of frame action into truss action thus changing the lateral load transfer mechanism. In the present study, seismic performance of various configurations of infill panels in RC frames (Shown in Fig 1.0)are compared with bare frame model using nonlinear analysis. The main objectives of this study were to investigate the behavior
Publication Year: 2011
Publication Date: 2011-01-01
Language: en
Type: article
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Cited By Count: 1
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