Advanced Prestressed Concrete Part 1: Introduction to Building Example, Torsion Design-Advanced Precast, Prestressed Concrete: Module 1 Video

Video Transcription

Video Summary

The first video is part of a series on Advanced Pre-Stressed Concrete Design, focusing on the design of the spandrel beam. The instructor demonstrates design calculations for dead loads, live loads, and self-weight, conducting a structural analysis and determining critical sections for shear and torsion. The video also discusses torsion design methods and compliance with ACI 318. The speaker emphasizes the importance of accounting for torsion in the spandrel beam design.<br /><br />The second video discusses two methods for designing and reinforcing concrete spandrels: the Zia-Zhu method and the Slender Spandrel method. The Zia-Zhu method calculates the maximum torsion allowed to prevent over-reinforcement and diagonal crushing of concrete. The Slender Spandrel method provides a simplified approach using open web reinforcement. Reinforcement requirements are calculated based on the angle of inclination of diagonal cracks, with a focus on checking for end region cracking and out-of-plane bending. The video concludes by showing reinforcement patterns for the Slender Spandrel method. No credits are granted for this video.

Keywords

Advanced Pre-Stressed Concrete Design

spandrel beam

design calculations

dead loads

live loads

self-weight

structural analysis

shear

torsion

ACI 318

Zia-Zhu method

Slender Spandrel method

reinforcement patterns