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 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 - The present research paper aims to conduct a
ancient Rome, where early forms of precast concrete were utilized for aqueducts and temples, the technique truly advanced in the early 20th century with progress in concrete technology. Following World War II, there was a notable surge in the utilization of precast concrete, particularly in Europe, as countries prioritized swift urban reconstruction. Presently, the fabrication of precast concrete elements takes place in controlled settings, ensuring top-notch quality and uniformity. This approach diminishes construction schedules, reduces on-site labor, and enables enhanced design flexibility, as elements can be shaped into various forms and sizes. Precast concrete finds extensive application in building construction, infrastructure undertakings, and urban expansion, encompassing bridges, tunnels, and stadiums. Technological progressions, such as highperformance concrete, 3D printing, and automation, have further expanded its utilization. Despite challenges like transportation and initial expenses, the long-term advantages frequently surpass these obstacles. The future of precast concrete appears promising with an increasing focus on sustainable methodologies, integration with Building Information Modeling (BIM), and continual material innovations, solidifying its status as an increasingly indispensable component of the construction sector.
comprehensive comparative analysis of three precast structural models under dynamic loading conditions, in accordance with the guidelines stipulated in IS 1893 Part 1:2016. In this investigation, four models have been formulated using the ETABS Software. In the initial model, the beam, column, and slab are all fabricated from concrete with an M25 grade. Transitioning to the second model, the beam and column are constructed using M40 grade concrete, while the slab is comprised of M25 grade concrete. The third model incorporates beam and slab elements with M40 grade concrete, while the column is erected utilizing M25 grade concrete. By employing dynamic analysis techniques, the response of each model to seismic forces is evaluated to determine their respective efficiency and vulnerability. Key parameters such as natural frequencies, mode shapes, and structural displacements are analyzed to assess the seismic performance of each structural configuration. Through extensive numerical simulations and analytical evaluations, this research paper seeks to elucidate the impact of distinct structural components on the overall seismic response of precast concrete structures. The findings derived from this comparative analysis can inform the development of optimal design strategies aimed at enhancing the seismic resilience of precast concrete constructions, thereby significantly advancing seismic engineering practices. This study is of paramount importance as it provides invaluable insights into the performance characteristics of different precast structural models under dynamic loading scenarios. It emphasizes the importance of considering various factors, such as natural frequencies and mode shapes, when designing structures intended to withstand seismic events or similar natural disasters. By identifying areas requiring enhancement in current design methodologies through this comparative analysis, engineers can devise more effective approaches that improve the safety and durability of precast concrete structures during seismic events.
2.PRINCIPLE OF THE PRECAST CONCRETE The concept of precast concrete entails the process of pouring concrete into a reusable mold or form, subsequently curing it in a regulated setting, then transporting it to the construction site and hoisting it into position. This technique affords meticulous oversight of the quality and consistency of the concrete elements, thereby augmenting their resilience and longevity. Precast concrete can be crafted in a diverse array of shapes and dimensions, rendering it adaptable for various construction purposes. Moreover, this method substantially diminishes on-site construction duration and labor expenses, given that the concrete components are primed for immediate installation upon delivery. The controlled manufacturing environment also curtails waste and environmental repercussions, rendering precast concrete a sustainable option for contemporary construction endeavors.
Key Words: Seismic behaviour, reinforced concrete frame, precast concrete, normal concrete, earthquake resistance, ductility, stiffness, strength, energy dissipation, construction techniques, seismic resilience.
1.PRECAST CONCRETE STRUCTURE
3.PRECAST CONCRETE IN REAL LIFE PROJECT
Precast concrete structures have emerged as a fundamental component of contemporary construction due to their adaptability, resilience, and effectiveness. Originating in
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Precast concrete is extensively employed in practical applications due to its efficiency and versatility. In the
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