Seismic Analysis, Design, and Detailing Requirements of Special Reinforced Masonry Shear Walls According to US Codes

In Seismic Analysis, Design, and Detailing Requirements of Special Reinforced Masonry Shear Walls According to US Codes , you'll learn ...

• The design of special reinforced masonry shear walls subjected to in-plane seismic and gravity loads
• The use of structural walls in buildings and the intended behavior of these walls
• Design and detailing requirements of TMS 402 along with guidance on how to apply them
• Good practices that go beyond the minimum requirements of the building code

Overview

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Credit: 4 CPD

Length: 55 pages

The primary seismic force-resisting elements in buildings are horizontal diaphragms, vertical framing elements, and foundations. Together, these elements, comprise the seismic force-resisting system (SFRS). In reinforced masonry structures, the vertical framing elements are generally structural walls. They resist out-of-plane loads from wind or earthquake and transfer those loads to diaphragms and foundations. They also resist in-plane loads received from diaphragms and convey them to foundations. Given the wide variety of masonry materials, forms, and local construction practices, many kinds of reinforced masonry structural walls are possible. This course focuses on the design of one classification of walls for one loading case: special reinforced masonry shear walls subjected to in-plane seismic and gravity loads.

This course is intended especially for the practicing structural engineer, although it will also be useful for building officials, educators, and students. Although it emphasizes code requirements and accepted approaches to their implementation, it also identifies good practices that go beyond the minimum requirements of the building code. Background information and illustrative sketches clarify the requirements and recommendations.

Following the introduction, Sections 2 and 3 describe the use of structural walls in buildings and discuss intended behavior of these walls. Section 4 provides analysis guidance. Section 5 presents the design and detailing requirements of TMS 402 along with guidance on how to apply them. Section 6 presents additional requirements that must be considered for all masonry buildings, particularly those assigned to SDC D, E, or F. Section 7 addresses detailing and constructability challenges for special structural walls.

Learning Objectives

Upon completion of this course, participants will be able to:

• Explain the use of reinforced masonry structural walls in buildings.
• Describe shear wall configurations in buildings.
• Apply special masonry shear-wall design principles.
• Identify allowable stress design, strength design, and limit design.
• Compare key aspects of flexure-dominated versus shear-dominated walls.
• Interpret maximum vertical reinforcement requirements.
• Analyze special boundary elements.
• Evaluate the distribution of reinforcement in flexure-dominated walls.
• Assess grout placement and behavior.
• Summarize lap splices in plastic hinge zones.
• Outline wall configurations and behavior.
• Distinguish key features of the design of coupled and perforated walls.
• Relate the limit design method to applicable engineering or project decisions.
• Classify the principal elements associated with stiffness and drift limits.
• Verify requirements associated with additional provisions in the IBC and ASCE 7.
• Select appropriate methods for modeling considerations and structural idealization.
• Determine applicable criteria for elastic analysis and member stiffness.
• Develop an approach for addressing the effective widths of wall flanges and coupling slabs.
• Recommend appropriate approaches for plastic limit analysis.
• Prioritize key considerations for load and resistance factors.
• Justify decisions related to the considerations for preliminary estimates of design base shear.
• Differentiate among alternatives associated with lateral load distribution and lateral stiffness.
• Recognize conditions and features associated with the general approach to strength design of shear walls.
• Design for out-of-plane forces.
• Correlate design considerations for shrinkage, permanent moisture expansion, and thermal movements with relevant design or performance outcomes.
• Organize the key information associated with prescriptive reinforcement requirements for special walls.
• Formulate an approach for checking in-plane flexural capacity in the presence of axial loads.
• Validate conclusions related to checking the cracking moment.
• Specify appropriate requirements for checking shear capacity and sliding shear capacity.
• Plan an appropriate approach for detailing and constructability issues.

Certificate of Completion

You will be able to immediately print a certificate of completion after passing a multiple-choice quiz consisting of 23 questions. CPD credits are not awarded until the course is completed and quiz is passed.