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23. STEEL CONNECTIONS

Bolted connections are examined in detail, highlighting their preference over rivets and welds in construction due to efficiency and reliability. Various types of bolts, specifically A325 and A490, are discussed along with their properties and applications. The chapter also differentiates between bearing and slip-critical connections while detailing the nominal strength of bolts and potential failure modes.

Sections

STEEL CONNECTIONS

The section covers bolted connections in steel structures, emphasizing their types and strengths compared to traditional methods like riveting and welding.

23 Section Overview

Start current section content and materials

23.1 Bolted Connections

Bolted connections are preferred in construction due to their efficiency over rivets and welds.

23.1.1 Types of Bolts

This section discusses the most common types of bolts used in steel connections, highlighting their material properties and applications.

23.1.2 Types of Bolted Connections

This section introduces the two primary types of bolted connections: bearing-type and slip-critical connections, focusing on their load transmission mechanisms.

23.1.3 Nominal Strength of Individual Bolts

The section explains the nominal tensile strength of individual bolts in bolted connections, focusing on the tensile strength of the bolt and the tensile stress area.

Learning Objectives

  • Bolted connections are favored for their efficiency and reduced labor compared to rivets.

  • A325 and A490 are the most common high-strength bolts used in construction.

  • The strength of a bolted connection can be affected by its design and the type of load it carries.

Key Concepts

Bolted Connections

Joint mechanism using bolts to connect structural elements.

High Strength Bolts

Bolts designed to withstand higher loads, primarily A325 and A490.

Slip-Critical Connection

Type of bolted connection that transmits load through friction between surfaces.

Bearing Type Connection

Connection that transmits load through shear and bearing of the bolt.

Nominal Strength

Calculated strength of a single fastener based on tensile properties and area.

Practice Exercises

Total Questions

2

Estimated Time

4 min

Passing Score

70%

Instructions

  • Read each question carefully
  • You can use hints if you need help
  • Complete all questions before submitting

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