International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056 Volume: 11 Issue: 06 | Jun 2024
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p-ISSN: 2395-0072
COMPARATIVE STUDY OF SEISMIC BEHAVIOR OF THE RC FRAME STRUCTURE WITH PRECAST CONCRETE AND NORMAL CONCRETE : A REVIEW Rajat Pratap Shahi1, Mr. Ushendra Kumar2 1Master of Technology, Civil Engineering, Lucknow Institute of Technology, Lucknow, India
2Head of Department, Department of Civil Engineering, Lucknow Institute of Technology, Lucknow, India
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Abstract - This comprehensive review paper delves into a
detailed comparative analysis of the seismic behavior of reinforced concrete (RC) frame structures that are built using precast concrete as opposed to traditional cast-in-situ concrete. The growing demand for efficient and durable construction methods has brought to light the numerous potential benefits of precast concrete, including faster construction times, improved quality control, and costeffectiveness. However, the seismic performance of these structures is a crucial factor to consider, especially in areas prone to earthquakes. By synthesizing existing research, this study aims to assess the differences in seismic response between precast and conventional concrete RC frames. Various key parameters such as ductility, stiffness, strength, and energy dissipation are thoroughly examined through an indepth analysis of experimental findings and numerical simulations. The results suggest that precast concrete frames have the potential to exhibit similar seismic performance to their cast-in-situ counterparts, but specific challenges related to design and construction need to be addressed to ensure their effectiveness under seismic forces. The paper provides valuable recommendations for future research endeavors and practical guidelines for engineers and construction professionals to enhance the seismic resilience of precast RC structures. By taking into account these insights, it is possible to further optimize the performance and safety of precast concrete frame buildings in seismic-prone areas. Key Words: Seismic behaviour, reinforced concrete frame, precast concrete, normal concrete, earthquake resistance, ductility, stiffness, strength, energy dissipation, construction techniques, seismic resilience.
1.HISTORY The comparative analysis of the seismic response of reinforced concrete (RC) frame structures constructed with precast concrete and conventional (cast-in-situ) concrete has undergone significant evolution over time, mirroring advancements in construction technology and seismic engineering. In the early 20th century, RC structures were predominantly cast-in-situ, encountering challenges related to quality control and construction efficiency. The introduction of precast concrete brought about improvements in quality control and construction speed, © 2024, IRJET
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albeit raising concerns regarding joint performance during seismic events. As seismic design principles and building codes matured in the mid-20th century, researchers began systematically comparing the two construction methodologies. Initial investigations often favored cast-insitu concrete due to its monolithic characteristics. Nevertheless, progress in precast technology during the 1990s and 2000s, such as the utilization of high-performance concrete and enhanced connection techniques, bolstered the seismic performance of precast frames. Contemporary research utilizes advanced modeling and testing techniques, demonstrating that properly engineered precast RC frames can rival or even surpass the seismic performance of cast-insitu frames. Building codes now offer detailed recommendations for both construction approaches in seismic zones, ensuring safety and performance. Practical applications in earthquake-prone regions showcase the feasibility of both methods, reflecting a nuanced perspective in ongoing comparative analyses.
2.RC FRAME STRUCTURE Reinforced concrete (RC) frame structures are a widely used construction method globally for a diverse range of buildings, such as residential, commercial, and industrial projects. These structures are composed of a framework consisting of horizontal beams and vertical columns that are interconnected to create a grid-like structure. This design is specifically engineered to bear both vertical loads, like the weight of the building and its contents, and horizontal loads, such as wind or seismic forces. To strengthen the concrete, reinforcement materials like steel bars or mesh are incorporated within the concrete to enhance its tensile strength, as concrete alone is not as strong under tension. The adaptability and resilience of RC frame structures make them an excellent option for constructing multi-storey buildings, as they can be tailored to various architectural styles and can endure substantial stress over time. Furthermore, the fire-resistant and sound insulating qualities of concrete add to the appeal of using RC frame structures in modern construction practices. The combination of strength, versatility, and durability makes RC frame structures a preferred choice for a wide range of construction projects across the globe.
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