International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 10 Issue: 07 | July 2023
p-ISSN: 2395-0072
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“Structural Diagnosis, Repair and Retrofitting of RCC Structure” SHARIKMASLAT ABUTURAB. S1, Dr. S. N. TANDE2, 1 PG Student, Dept. of Civil Engineering, Walchand College of Engineering, Sangli, Maharashtra, India, 416415 2 Associate Professor, Walchand College of Engineering, Sangli, Maharashtra, India, 416415
---------------------------------------------------------------------***--------------------------------------------------------------------structure as a whole. It can be economically feasible to restore Abstract - In the modern world, there are many different the damaged structure and extend its remaining life if the cause of deterioration is identified and the structure is properly assessed. Before beginning any repair work, NDT tests must be performed to determine the severity of the distress and damages in the concrete structure as well as to determine the quality and strength of the concrete. In order to pinpoint the crucial structural components and suggest repair and retrofitting, models should be made and analyze using the ETABS software.
types of structures, including ones made of steel, reinforced concrete, and composite materials. These structures must be able to sustain loads from gravity, earthquakes, wind, etc. during the course of their design lives. Nevertheless, many current structures might degrade or need to be upgraded. When upgrading an existing structure, for example, it may be more cost-effective to apply retrofitting techniques to strengthen the existing building rather than demolishing it and starting from scratch. The behavior of G+1 story R.C. frame buildings is the subject of the study. The frame structure's characteristics are defined along with it. The structure is diagnosed visually, using any NDT testing that was done on it, and by taking into account the data that was produced after inspection. In order to pinpoint the crucial structural components and suggest repair and retrofitting, models are made using the ETABS software.Modification of the building's use in accordance with the needs of the client, etc. In some circumstances, such as when modifying an existing structure, it is more cost-effective to use retrofitting techniques to strengthen the current structure rather than tearing it down and building a brand-new one. Key Words: ETABS5
1.1 PURPOSE OF PROJECT. A vast number of existing buildings in India are dangerously vulnerable to earthquake effects, and the number of such structures is continually increasing. This was underscored by the recent earthquake. Retrofitting any existing building is a complex process that demands competence; retrofitting RC buildings is more difficult due to the complex behavior of the RC composite material. The behavior of buildings during an earthquake is influenced not only by the size of the members and the amount of reinforcement, but also by the placement and detailing of the reinforcement. Construction techniques in India produce serious construction faults, making retrofitting even more challenging. Appropriate maintenance extends the life of a structure and can be utilized to prevent such damages, which can help to avoid failures caused by these damages. Higher operational loads, complexity of design, and longer life time periods placed on civil constructions make monitoring their health increasingly critical..
Diagnosis1, NDT2, Repair3, Retrofitting4,
1. INTRODUCTION For over a century, reinforced cement concrete (RCC) has been used in building. Over the past 50–60 years, RCC has seen widespread use in India. Buildings, bridges, sports stadiums, and other infrastructure assets that are essential to the survival of a civilized society have been built in significant numbers during this time. These have involved a significant expenditure of resources. With our limited national resources, we cannot even imagine attempting to recreate such assets. Therefore, it is crucial to keep them in good working order. Since RCC deterioration is a natural occurrence and has begun to show up in many structures, a systematic method is required to deal with such issues. Identifying the degradation and ensuing repair at the lowest possible cost requires.
1.2 OBJECTIVES OF PROPOSED WORK. The objectives of the work are as follows: 1) Formulation of the problem statement, development of methodology and possible validation with research articles. 2) Performing primary inspection of RCC structure by NDT test. 3) Software modelling of building and Evaluation of strength parameter with respect to the type of structural defects, any signs of material deterioration and deformation 4) To recommend life enhancing preventive and corrective measures like repairs and retrofitting for RCC structure.
The diagnosis of a concrete structure includes not only determining its current state but also making predictions about the reasons for deterioration and the structure's remaining life. Therefore, correct diagnosis of the concrete's is essential to extending both its current life and the life of the
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