Structural Steel Semirigid Connections: Theory, Design, and Software
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Summary
Although the semirigidity concept was introduced many years ago, steel structures are usually designed by assuming that beam-to-column joints are either pinned or rigid. Theses assumptions allow a great simplification in structural analysis and design-but they neglect the true behavior of joints.
The economic and structural benefits of semirigid joints are well known and much has been written about their use in braced frames. However, they are seldom used by designers, because most semirigid connections have highly nonlinear behavior, so that the analysis and design of frames using them is difficult. In fact, the design problem becomes more difficult as soon as the true rotational behavior of beam-to-column joints is accounted for-the design problem requires many attempts to achieve a safe and economical solution.
Structural Steel Semirigid Connections provides a comprehensive source of information on the design of semirigid frames, up to the complete detailing of beam-to-column connections, and focuses on the prediction of the moment-rotation curve of connections. This is the first work that contains procedures for predicting the connection plastic rotation supply-necessary for performing the local ductility control in nonlinear static and dynamic analyses. Extensive numerical examples clarify the practical application of the theoretical background.
This exhaustive reference and the awareness it provides of the influence of joint rotational behavior on the elastic and inelastic responses of structures will greatly benefit researchers, professionals, and specification writing bodies devoted to structural steel.
Table of Contents
Behavior of Semirigid Frames
Introduction
Frame Classification.
Influence of Joint Behavior on Unbraced Frame Response
Influence of Joint Behavior on Brace Frame Response
Classification of Joints
Modeling of Joint Behavior
Introduction
Methods for Modeling Rotational Behavior
Mathematical Representation of Moment-Rotation Curves
Methods for Predicting Moment-Rotation Curves
Welded Connections
Introduction
Column Web in Shear
Column Web in Compression
Column Web in Tension
Considerations on Local Stress Interaction
Column Flange in Bending
Beam Flange and Web in Compression
Comparison with Experimental Data
Influence of Strain-Hardening
Worked Examples
Basic Component of Bolted Connections
Introduction
Axial Strength Bolted T-Stubs
Axial Stiffness of Bolted T-Stubs
Bolted End-Plate Connections
Introduction
Prediction of Flexural Resistance
Prediction of Initial Rotational Stiffness
Moment Rotation Curve
Worked Examples
Bolted Connections with Angles
Introduction
Prediction of Flexural Resistance
Operative Steps
Comparison with Experimental Data
Simplified Procedure
Prediction of Rotational Stiffness
Worked Example
JMRC: A Computer Program for Evaluating Joint Moment Rotation Curve
Analyzed Joint Typologies
Description of Input Data
Examples of Input Data Files
Adopted Formulations
Design of Extended End Plate Connections for Braced Frames
Introduction
Behavior and Design of End Plate Connections
Design Procedure for Braced Frames
Applications
Ductility of Connections
Introduction
Plastic Rotation Supply of the Beam-Joint System
Welded Connections
Bolted Connections
Parameters Affecting Ductility
Ultimate Plastic Rotation of Connections with Angles
Ultimate Plastic Rotation of End-Plate Connections
Cyclic Behavior of Beam-to-Column Joints
Introduction
Experimental Evidence
Low Cycle Fatigue
Modeling of Cyclic Response
Seismic Design of Semirigid Frames
Introduction
Connection and Panel Zone Design
Second-Order Plastic Design of Moment Resisting Frames
The Influence of Beam-to-Column Joints
Parametric Analysis
Dynamic Inelastic Analyses
Downloads Updates
| Resource | OS Platform | Updated | Description | Instructions |
|---|---|---|---|---|
| floppy.zip | Cross Platform | September 27, 2011 | Floppy disk Files |
