Investigation of Flexural Behavior of Beam Strengthened with Textile Reinforced Concrete Under Cyclic Loading
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Date
2024-11
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Addis Ababa University
Abstract
Textile reinforced concrete (TRC) has attracted a lot of interest recently for its potential to improve masonry and reinforced concrete (RC) structures. TRC can also be used to create new, lightweight precast elements or as a secondary building material to support primary building materials. Because these TRC combine strength, durability, and environmental concern, they are becoming increasingly attractive replacement for Fiber Reinforced Polymer (FRP) for a variety of structural and architectural purposes. TRC's primary goal is to strengthened the structure and enhance its shear and flexural capacities. However, as TRC is a recently developed technology, its full potential is yet to be determined.
The behavior of a beam strengthened with TRC for flexural capacity has been studied in this research. The ultimate goal is to investigate the flexural behavior of a beam strengthened with TRC under cyclic loads and to enhance the maximum flexural capacity using different parameters. Mesh applied region, mesh spacing and mesh arrangements are among the investigated parameters. The ABAQUS finite element software was utilized, and the findings from the FE validation closely aligned with the results of the experimental tests for static load. The investigation continues by applying cyclic load based on the ACI 374 (ACI 374.2R-13) cyclic loading application protocol. Based on the results of this investigation, a higher load-carrying capacity under cyclic load can be achieved by increasing the number of textile layers for large mesh spacing and decreasing the spacing between textile strands for a single layer. Additionally, a 45-degree inclined mesh alters the failure mode from sudden to gradual by effectively distributing stress.
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Keywords
Reinforced Concrete, Cyclic Loading, Flexural Behavior, Beam, Textile Reinforced Concrete