Advanced Prestressed Concrete Part 3: Bearing on Concrete and Dapped End Design-Advanced Precast, Prestressed Concrete Module 3: Video

Video Transcription

Video Summary

The video transcript provides an overview of advanced pre-stressed concrete, specifically focusing on bearing strength, adapting and designing DAP regions, and design provisions for DAPTs in the PCI Design Handbook. The session explains the calculation for determining the bearing strength of plain concrete surfaces, introduces shear friction theory for controlling cracks, and discusses the design of horizontal reinforcement in DAP regions. The results of a research study on DAP design are summarized, highlighting recommendations to address issues such as diagonal tension failures and splicing non-prestressed reinforcement with strands. The video also covers design requirements and calculations for DAPTEN reinforcement, including flexural reinforcement, direct shear, diagonal tension, and extended end reinforcement. A design example for a double T beam is provided to demonstrate the application of the design provisions and reinforcing detailing requirements. Additional requirements for thin-stemmed members and checks for sections away from the DAP are discussed. The video concludes with a discussion on bearing strength and the reinforcement needed for horizontal forces. No credits are provided in the video.

Keywords

advanced pre-stressed concrete

bearing strength

DAP regions

design provisions

PCI Design Handbook

shear friction theory

horizontal reinforcement

DAP design

diagonal tension failures

DAPTEN reinforcement

double T beam

reinforcing detailing requirements