International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 11 Issue: 12 | Dec 2024
p-ISSN: 2395-0072
www.irjet.net
INVESTIGATING LATERAL RESPONSE VARIATIONS IN REINFORCED CONCRETE FRAMES WITH DIFFERENT TYPE OF CONCRETE: A REVIEW Sandeep Kumar1, 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 review paper investigates the lateral
example, offered substantial improvements in terms of compressive strength but required careful design adjustments in reinforcement to prevent brittle failure modes under seismic loading.
response variations in reinforced concrete (RC) frame structures constructed using different types of concrete. Structural performance under lateral loads, such as those induced by seismic activity, is critical for ensuring the stability and safety of RC frames. The study explores how variations in concrete types,encompassing standard, highstrength, and lightweight concrete,impact parameters such as stiffness, ductility, energy dissipation, and overall resilience. Through a comprehensive analysis of recent experimental and computational studies, key trends and insights are synthesized, highlighting the role of concrete type in modulating the lateral load-bearing capacity and deformation characteristics of RC frames. Findings from this review underscore the potential for optimizing concrete selection to improve lateral response, thereby contributing to design recommendations for enhancing earthquake resilience. This review serves as a resource for civil engineers and researchers aiming to refine structural designs for improved safety and performance in diverse environmental conditions.
During this period, the adoption of advanced concrete types, such as fiber-reinforced concrete, marked a significant milestone in construction technology. This innovative material offered substantial improvements in tensile strength, effectively reducing the risk of cracking under load. Its unique composition, incorporating fibers into the concrete matrix, enhanced its ductility and energy absorption capacity. Structural tests highlighted its superior lateral performance, making it an ideal choice for buildings and infrastructure in regions prone to high seismic activity, where durability and resilience are critical.
2.RC FRAMES FOR STRUCTURAL STABILITY Reinforced Concrete (RC) frames are essential for structural stability in modern construction, as they combine concrete’s compressive strength with steel’s tensile strength to create a highly resilient and loadbearing system. These frames form a rigid skeleton by connecting beams and columns, which helps distribute forces evenly throughout a structure, resisting external forces like wind and seismic activity.
Key Words: Lateral response, Reinforced concrete frames, Concrete types, Seismic performance, Structural resilience, Structural design optimization.
1.BACKGROUND The investigation of lateral response in reinforced concrete (RC) frames has been a crucial area of structural engineering research for decades, primarily due to the high vulnerability of RC structures to lateral forces induced by seismic activities, wind loads, and other dynamic forces.
RC frames are also valued for their ductility, allowing structures to withstand deformation without sudden collapse, particularly during earthquakes. They offer design flexibility, cost-effectiveness, and long-term durability, making them ideal for buildings of all types and sizes, from residential complexes to high-rise skyscrapers. Through effective soil-structure interaction, RC frames enhance the stability and safety of the structures they support, ensuring a solid foundation even in challenging environmental conditions.
Early research efforts in the mid-20th century focused on understanding the fundamental behavior of RC structures under lateral loads, but at that time, concrete was generally treated as a homogeneous material with limited variation in concrete types or strengths. With advancements in material science during the 1980s and 1990s, the development of high-strength concrete (HSC) and ultra-high-performance concrete (UHPC) broadened the scope for investigating RC frames’ lateral response. Researchers began conducting comparative studies between conventional concrete and these new types, focusing on their distinct material properties. HSC, for
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