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Seismic Design of Cast-in-Situ Concrete Diaphragms According to ACI 318-19 & ASCE 7-22

COURSE NO: S05-017
Seismic Design of Cast-in-Situ Concrete Diaphragms According to ACI 318-19 & ASCE 7-22
Course Highlights

This online engineering PDH course provides information on the role and design of diaphragms in the structural system of buildings and presents constructability issues for cast-in-place concrete diaphragms.


Building structures generally comprise a three-dimensional framework of structural elements that are configured to support gravity and lateral loads. Although the complete three-dimensional system acts integrally to resist loads, structural engineers commonly conceive of the seismic force-resisting system as being composed of vertical elements, horizontal elements, and the foundation.


Diaphragms transmit lateral forces from the floor system to the vertical elements of the structural system. They also tie the vertical elements together and thereby stabilize these elements and transmit forces among them. Diaphragms are thus an essential part of the structural system and require design attention by the structural engineer to ensure the structural system performs adequately under design loadings.


This 5 PDH online course is applicable to structural, forensic-structural, and civil engineers, as well as others interested in understanding the structural analysis, design, detailing, and constructability of cast-in-place concrete diaphragms.
Learning Objectives

This PE continuing education course is intended to provide you with the following specific knowledge and skills:

  • Familiarizing with diaphragm components and its multiple roles to resist gravity and lateral forces in buildings
  • Familiarizing with the diaphragm behavior, design principles and its stiffness modeling
  • Gaining a general overview of diaphragm design forces and collector design forces
  • Learning how to analyze and design diaphragms with openings and how to analyze and design of ramps
  • Understanding the various diaphragm modeling and analysis approaches
  • Learning how to design partial-depth collectors
  • Understanding diaphragm shear distribution and how to design diaphragm slabs on the ground
  • Learning about the various issues related to detailing and constructability of diaphragms
Course Document
In this professional engineering CEU course, you need to review the course document titled, " Seismic Design of Cast-in-Situ Concrete Diaphragms According to ACI 318-19 & ASCE 7-22”, which is prepared by Ibrahim M. Metwally, Ph.D., P.E.
To view, print and study the course document, please click on the following link(s):
Course Quiz
Once you complete your course review, you need to take a multiple-choice quiz consisting of twenty-five (25) questions to earn 5 PDH credits. The quiz will be based on the entire document.
The minimum passing score is 70%. There is no time limit on the quiz, and you can take it multiple times until you pass at no additional cost.
Certificate of Completion

Upon successful completion of the quiz, print your Certificate of Completion instantly. (Note: if you are paying by check or money order, you will be able to print it after we receive your payment.) For your convenience, we will also email it to you. Please note that you can log in to your account at any time to access and print your Certificate of Completion.

To buy the course and take the quiz, please click on: