There are several ways to access a free PDF version of "Reinforced Concrete Vol 1" by H.J. Shah:
With over 228 fully solved examples , 250+ unsolved problems, and short questions with answers in the appendix, it is a primary resource for competitive exams like GATE, UPSC, and AMIE . Overview of Topics Covered
Unfortunately, I couldn't find a direct link to a free PDF of the book. However, I can suggest some alternatives: