• Rushikesh Santosh More

In India specifically in Metro Cities the residential and commercial buildings construction rapidly increases. The mass of Population and several commercial area are associated in comparatively small area due to land rate and other reasons in metro cities .But due to quite a lot of reasons either manmade and natural theses structure affected by disaster .Fire is one of the major source of such kind of disaster in metro cities because if these kind of fire disaster use of that structure is not to be done by occupants due to these the financial loss may take place and it is also not economical to demolish the buildings and build a new building. To avoid the loss the buildings structural audit is necessary to check its structural stability after fire disaster and the strengthen of building by appropriate method is very much essential After a fire incident the first question from a structural point of view is whether the construction can be refurbished or, in extreme cases, needs to be replaced. The choice of action must be based on an assessment of the status of the structure. This assessment is in turn based on a mapping of damage to the construction. The mapping of damage needs to be accurate to optimise both the safety level and the best solution from an economic point of view. The traditional assessment methods included in the experimental part of the research are: rebound hammer, ultrasonic pulse measurements and microscopy methods. These are compared to optical full-field strain measurements during a compressive load cycle on drilled cores, i.e. the new method proposed to determine the degree of damage in a fire exposed cross-section. Based on the results from the present study an approach with two levels of complexity is recommended. The initial level is to perform an inspection and determine the development, size and spread pattern of the fire .In this research initially study the different NDT techniques. Then next phase the in situ assessment of fire affected building by taking suitable case studies and evaluated the actual structural damage of building and appropriate method for strengthen of building will be suggested by studying the cost effectiveness of each method

In situ, Assessment, Structure, Audit, NDT, rebound Hammer strengthen

"To analyze the structural audit for structural assessment and strengthening of fire affected structures", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.12, Issue 2, page no.a125-a135, February-2025, Available :http://www.jetir.org/papers/JETIR2502018.pdf

"To analyze the structural audit for structural assessment and strengthening of fire affected structures", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.12, Issue 2, page no. ppa125-a135, February-2025, Available at : http://www.jetir.org/papers/JETIR2502018.pdf