It seems you are looking for the solution manual (often referred to as solutionnaire in French) in PDF format. This is a very common request among engineering students, as the textbook by Bedford, Fowler, and (in French adaptations) De Lannoy is a standard reference for engineering statics.
If you provide the (e.g., 4th edition française), I can help you locate the official student companion guide or the publisher's page for that resource. Would you like a sample step-by-step solution to a classic statics problem (e.g., a beam with a distributed load) to help you study?