Chapter Principle Of The Strut-And-Tie Model – Limit Theorems Of Perfect Plasticity – Introduction – Why Limit Analysis – Basic Assumptions – Tresca Yield Criterion – Lower-Bound Theorem – Upper-Bound Theorem – The Strut-And-Tie Model – A Lower Bound Solution – Introduction – Concept – Strut-And-Tie Modeling – Elements Of Stm – D-Regions Versus B-Regions – Introduction – Defining The Boundaries Of D-Regions – Historical Sketch – The Development Of The Truss Model For – B-Regions Design – The Start Of The Strut-And-Tie Model For – D-Regions Design – Stm For A Unified And Consistent Design – References – Chapter Developing A Strut-And-Tie Model – Introduction – The Load Path Method – Elastic Stress Analysis – Model Optimization – Basic Discontinuous Stress Fields – Examples Of Discontinuous Stress Fields – Local Pressure – Beam With Dapped End – Beam With Recess – Deep Wall-Like Column With Recess – Walls With Openings – Deep Beam With Eccentric Large Opening – Modeling Of B-Regions With Web Reinforcement – B-Region With Vertical Web Reinforcement – B-Region With Inclined Web Reinforcement .