International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 10 Issue: 07 | July 2023
p-ISSN: 2395-0072
www.irjet.net
“COMPARATIVE STUDY ANALYSIS OF MULTI STOREYED RC FRAMED BUILDINGS WITH AAC BLOCK INFILL WALLS AND BRACING SYSTEMS USING WITH & WITHOUT SHEAR WALL” Mr. Tanwar Mohammed Ali M Yaqoob 1, Mr. Mohit Jakhar 2, Tanwar Mohammed Ali M Yaqoob M.tech Scholar Maharishi Arvind International institute of technology, kota (Rajasthan) Mr Mr. Mohit Jakhar, Assitant Professor Maharishi Arvind International institute of technology, kota (Rajasthan) ---------------------------------------------------------------------***--------------------------------------------------------------------1.1 (AAC) Blocks Infilled wall Abstract - Structural engineering encompasses the activities of designing, constructing, and maintaining various structures. The study and design of structures that sustain or resist loads in accordance with the needs of buildings are the focus of structural engineering. In framed buildings, infill walls play a vital role in enhancing the structural rigidity. Among the various lightweight and flexible materials used for infill, Autoclaved Aerated Concrete (AAC) blocks are commonly employed. This study focuses on conducting response spectrum analysis through E-tabs software to evaluate the seismic performance of a multi-story RC framed building with AAC block infill walls and bracing systems, considering both with and without shear walls. A comparative analysis of key parameters such as base shear, displacement, besides storey drift was conducted between these models and the bracing systems in multi-story RC framed models. In this study, I analyse a G+30, G+40 & G+50 buildings with a AAC infill wall with and without shear wall also with a bracing system with and with out shear wall in zone 3 of a strong seismic zone. Models are the subject of a dynamics analysis. Model output seismic parameters, including base shear, maximum storey displacement, also maximum storey drift using ETAB 2019, a modelling and analysis programme.
The approximate dimensions of an AAC block are 600/625 mm 200/240 mm 100-300 mm. Density is around one-third that of a standard clay brick part. One of the most significant advantages of the AAC over conventional cementation construction materials are its decreased environmental effect. It produces less efflorescence. It has excellent thermal insulation. Because the material can be directed and cut to size onsite using common carbon steel band saws, handsaws, and drills, installation is simple and rapid. AAC is now utilized in many nations throughout the world. The most essential factors influencing seismic building configuration are overall geometry, the structural arrangements, and load routes. The influence of Horizontal or else Plan Aspect Ratio (L/B ratio) on multi storey R.C. framed building with the AAC infill walls is studied in this study, where B stands the base width also L is the building frame length.
1.2 BRACING The bracing system is responsible for supporting the lateral loads, while the beams & columns comprising the frame bear the vertical loads. However, the placement of braces can pose challenges as it may inhibit with the design of the façade and the positioning of openings. In response, buildings designed in high-tech or post-modernist styles have incorporated bracing as an architectural feature, either on the interior or exterior of the structure.
Key Words: Multi Storey Building, AAC Infill Wall, Breacing System, Shear Wall
1.INTRODUCTION People are more excited and eager to relocate from rural to urban areas in the current development era in order to take advantage of the increased amenities and improve the prosperity of their life. Due to urbanisation, land will be scarce and expensive even if it is accessible, making it out of reach for the average middle-class person. The multi-story building has to be constructed over time. According to technical expertise, whenever it is necessary to design a building that is rising vertically, the influence of lateral load dramatically increases and poses a significant challenge to their stability. At the top of the structure, the lateral loads for multi storeyed structure are very important. the lateral pressures impacting the structure caused story drift and even lead to uplifting the column.
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2. Literature Review Mohammed Nauman and Nazrul Islam (2014) conducted a study on the behavior of reinforced concrete multistory structures with and without infill walls. Reinforced concrete framed structures are widely used worldwide due to their ease of construction and efficient progress. In these structures, brick or block masonry is often incorporated as infill panels, providing supplementary lateral stiffness to the overall structure. The behavior of such structures differs significantly from bare frame structures.
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