Concept of Working Stress Design of Reinforced Concrete Beams

First Synchronous Lecture on CE 324 (Principles of Reinforced/Pre-stressed Concrete Design) Students: CE 3A and CE 3B Timestamp: 0:00 - Introduction 7:25 - Three stages that a beam undergoes before collapse 10:30 - The Uncracked Concrete Stage (stress/strain diagram) 14:05 - The Concrete Cracked-Elastic Stresses Stage (stress/strain diagram) 17:10 - How to determine what stage of loading the beam is already in? 18:19 - The Modulus of Rupture 24:08 - Discussion (how to determine if cracks will occur?) 37:19 - How to determine the Cracking Moment? 48:21 - Bending Stress of a Beam in Uncracked Concrete Stage 1:00:57 - Allowable Bending Stress of Concrete 1:04:59 - What is the use of the Modular Ratio (n) ? 1:05:59 - Modulus of Elasticity of Steel 1:06:30 - Modulus of Elasticity of Concrete 1:10:19 - Cracked Section / Transformed Cracked Section 1:11:21 - Calculation of Bending Stress using the Transformed Area Method 1:41:18 - Discussion on the Bending Moment Capacity of Reinforce Concrete Beams in Concrete Cracked-Elastic Stresses Stage #RCD #CivilEngineer #CivilEngineering #WSD