D-Load Design of Elliptical & Arch Pipe

Location: Kojo Kamau B – 4th Floor

Speaker:  Josh Beakley, P.E. – American Concrete Pipe Association

Presentation Description:

Oftentimes in Pipe School we do our best to give a basic understanding of D-load design for concrete pipe. This is the bread and butter of designing RCP. Unfortunately, with the limited time available, the presentations typically stick to standard circular pipe. Though it follows the same basic concept of relating field conditions to the 3.E.B test condition, D-load design of Elliptical and Arch Pipe is quite different than that of circular pipe. This presentation would be D-load design specifically for Elliptical and Arch Pipe.

This presentation will discuss such items as;
• The assumed bedding angle at the bottom of the pipe,
• The portion of the pipe subjected to lateral soil pressure,
• How the combined vertical reaction and lateral support are incorporated into a bedding factor,
• How the bedding factor is used to relate the field condition to the three-edge bearing condition.

Speaker Bio:

Currently based in Irving, Texas, he has been working for the ACPA since February 1994. As the Vice President of Engineering, he works with the national specifying agencies to develop the proper standards for buried infrastructure. Additionally, he helps engineers with design and installation questions dealing with precast concrete pipe and box culverts, as well as assists in the development of software to make their jobs easier. As for his day-to-day activities, he works on the editorial tasks in the morning time such as meeting minutes, meeting reports, developing draft ballot items, reviewing papers, and responding to emails. In the afternoon, he works on more technical tasks like addressing technical questions, reviewing technical changes to standards, and updates to the software.