Print this pageThe Design of Reinforced Masonry and Precast Concrete Lintels
Matthew
Stuart, P.E., S.E., P.Eng.
Course Outline
The focus of
this one hour online course is the design of reinforced concrete masonry lintels
(commonly referred to as bond beams) and precast reinforced concrete lintels.
Information is also provided on the how loads supported by lintels are evaluated
in light of the arching action of masonry.
This course includes a multiple choice quiz at the end.
Learning Objective
At
the conclusion of this course, the student will:
- Understand the mechanisms of
masonry walls that affect the impact of both uniform and concentrated loads
on supporting lintels
- Become familiar with standard details associated with the construction of new lintel supported openings in existing masonry walls.
- Understand both allowable stress
design associated with analysis masonry bond beams and strength design associated
with the analysis of precast concrete lintels
Course Introduction
Lintels are beams that support masonry above openings in walls. Typically lintels for concrete masonry walls are constructed of either masonry bond beams or precast concrete beams. Masonry bond beams are constructed of unit masonry blocks in the field. These types of lintels require that shoring first be erected to support the bond beam elements during construction until the masonry and grout achieves the necessary strength. Precast concrete lintels are typically fabricated offsite and shipped to the job site for erection. In either case, bond beam and precast lintels have the advantage over steel lintels in that they do not have to be fireproofed for load bearing walls and can typically be installed by the same contractor responsible for the construction of the wall.Course Content
The course content is contained in the following PDF file:
The Design of Reinforced Masonry and Precast Concrete Lintels
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Course Summary
The
design of masonry and concrete lintels requires an understanding of the load
path mechanisms of unit masonry walls. The natural arching action of running
bond masonry walls often provides an alternate load path for both uniform and
concentrated loads located above a lintel. Concrete masonry lintels are most
often designed using the allowable stress design or service stress method of
analysis. The design precast concrete lintels must comply with the ultimate
strength design provision of ACI 318.
Please
use the information you read in this course to answer the quiz questions.
Related Link
For additional technical information related to this subject, please visit the following website:
DISCLAIMER: The materials contained in the online course are not intended as a representation or warranty on the part of PDHonline.com or any other person/organization named herein. The materials are for general information only. They are not a substitute for competent professional advice. Application of this information to a specific project should be reviewed by a registered professional engineer. Anyone making use of the information set forth herein does so at their own risk and assumes any and all resulting liability arising therefrom.
