Charts for tendon profiles (straight, parabolic, or harped) are given to achieve desired stress distributions at midspan and support.
If you are an intern or junior engineer and encounter a cracking issue in an elevated water tank, Chapter 9 of this PDF will likely solve your problem. prestressed concrete n. rajagopalan pdf
Rajagopalan begins by establishing the basic principle of prestressing: introducing a permanent internal compressive stress to counteract tensile stresses from external loads. The book distinguishes between (bonded tendons tensioned before concrete placement) and post-tensioning (tensioning after concrete hardens, using ducts and anchorages). Charts for tendon profiles (straight, parabolic, or harped)
While simple beams are easy to analyze, continuous prestressed beams (common in bridges) introduce secondary moments. The book’s treatment of the Concordant Cable profile and linear transformation is considered one of the best explanations available in academic literature. Before the advent of modern finite element software,
Before the advent of modern finite element software, engineers relied heavily on a profound understanding of first principles. N. Rajagopalan, a distinguished academic and engineer, authored this book to demystify the complex mechanics of prestressing.