Most topics are given in this book without the conclusion, but with a profound analysis. It gives answers for the specific questions that are often encountered in the process of solution of problems. The book provides a significant number of examples for many topics. This work was developed using the following systematic order of material review: overview of theoretical material; numerical illustrations; variants of tasks for independent work; questions for self-tuition; subject reviewed in the thesis form; indicative list of test tasks and additional reference materials. This work creates necessary conditions for learning: all near at hand. Using the given sections, reader can easily control the quality of knowledge, retention of material, as well as to review material and complete calculation and diagrams and control tasks . The book provides a thorough analysis of the questions that have not been profoundly discussed in the other textbooks. This work offers free approach to the rules of signs and provides several recommendations on construction of the internal forces diagrams. This textbook is intended for the enineering students, master students, and PhD candidates.