• SHRIKANT D. GAIKWAD
• 2Dr Ishwar P Sonar

A flexural R.C. member, designed either with working stress method or limit state method, is placed in position either by cast in-situ or precast method. At the time of construction as the member is erected as per design specifications, its materials as well as cross-sectional properties are well defined and known. Hence two key design parameters viz. depth of neutral axis and moment of resistance, are well known. With passage of time, the member/structure ages and these properties may change. There is also a possibility that the member/structure may be subjected to different loading conditions than what it was originally designed for. Temporal evolution results in loss of basic data of the structure related to the original and current usage as well as loading pattern. Furthermore, a RC member is a composite member composed of concrete and steel. For most of old age structures, basic quality governing parameters and test results are not available. Thus, determination of basic design parameters and cross-sectional properties of an old age RC member or structure becomes a challenge. Neutral axis of a flexural member plays a key role in its design. If someone succeeds in determining the depth of neutral axis of an in-situ flexural member, it will be possible to determine its other design parameters and member. A practical solution in this direction is presented here to locate the depth of neutral axis.

Depth of Neutral axis, Moment of resistance , Nondestructive testing , Strain.

"A practical approach to determine the depth of neutral axis of a RC flexural member", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.9, Issue 5, page no.e27-e33, May-2022, Available :http://www.jetir.org/papers/JETIR2205503.pdf

"A practical approach to determine the depth of neutral axis of a RC flexural member", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.9, Issue 5, page no. ppe27-e33, May-2022, Available at : http://www.jetir.org/papers/JETIR2205503.pdf