Junbo Jia & Lingyi Lu 
Structural Mechanics [PDF ebook] 
Analytical and Numerical Approaches for Structural Analysis

This book covers both standard and advanced topics of structural mechanics. Standard subjects covered include geometric stability, forces and displacements of statically determinate structures, force and displacement method, and influence lines. Advanced topics include matrix displacement method, dynamics of structures, and limit loading. The book serves both as a classroom textbook and as a permanent engineering reference. It is written in such a way that it can be followed by anyone with a basic knowledge of classical and material mechanics.