End Plate Connections

Department of Civil Engineering Sydney NSW 2006 AUSTRALIA http://www.civil.usyd.edu.au/
Centre for Advanced Structural Engineering

Design Model for Bolted Moment End Plate Connections Joining Rectangular Hollow Sections Using Eight Bolts
Research Report No R827 Andrew Wheeler BE PhD Murray Clarke BSc BE PhD Gregory J Hancock BSc BE PhD

March 2003

Department of Civil EngineeringCentre for Advanced Structural Engineering http://www.civil.usyd.edu.au/

Design Model for Bolted Moment End Plate Connections Joining Rectangular Hollow Sections Using Eight Bolts
Research Report No 827 Andrew Wheeler1, BE, PhD Murray Clarke2, BSc, BE, PhD Gregory J Hancock3, BSc, BE, PhD March 2003 Abstract: In this report a model for the determination of the serviceability and ultimatemoment capacities of bolted moment end plate connections utilising rectangular hollow sections joined with eight bolts is presented. The connection configuration is such that two bolts are located above each of the flanges and beside each of the webs. The model considers the combined effects of prying action due to flexible end plates, the formation of yield lines in the end plates, and failuresdue to punching shear and beam section failure. The model is calibrated and validated using experimental data from a test program. The design model constitutes a relatively simple method for predicting the serviceability and ultimate moment capacities for the particular type of bolted moment end plate connection described herein. Keywords: Tubular, connections, moment end plate, structuraldesign, yield line, prying

Research Associate, Centre for Construction Technology and Research, The University of Western Sydney, Kingswood, N.S.W. 2747, Australia.
1

Senior Structural Engineer, Mannesmann Dematic Colby Pty Ltd, 24 Narabang Way Belrose, N.S.W. 2085 Australia.
2

BHP Steel Professor of Steel Structures, Department of Civil Engineering, The University of Sydney, N.S.W.2006, Australia.
3

Design Model for Bolted Moment End Plate Connections Joining Rectangular Hollow Sections Using Eight Bolts

March 2003

Copyright Notice Department of Civil Engineering, Research Report R827 Design Model for Bolted Moment End Plate Connections Joining Rectangular Hollow Sections using Eight Bolts © 2003 Andrew Wheeler, Murray Clarke, Gregory J Hancock

Thispublication may be redistributed freely in its entirety and in its original form without the consent of the copyright owner. Use of material contained in this publication in any other published works must be appropriately referenced, and, if necessary, permission sought from the author. Published by: Department of Civil Engineering The University of Sydney Sydney NSW 2006 AUSTRALIA March 2003http://www.civil.usyd.edu.au

Department of Civil Engineering Research Report No R827

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Design Model for Bolted Moment End Plate Connections Joining Rectangular Hollow Sections Using Eight Bolts

March 2003

TABLE OF CONTENTS

1 2 3 4 5

INTRODUCTION............................................................................................................1 EXPERIMENTAL STUDY............................................................................................5 GENERAL THEORETICAL BASIS OF MODEL......................................................8 YIELD LINE ANALYSIS.............................................................................................10 CUMULATIVE MODIFIED STUB-TEE METHOD................................................13 5.1 GENERAL......................................................................................................................13 5.2 THICK PLATE BEHAVIOUR ............................................................................................17 5.3 INTERMEDIATE PLATE BEHAVIOUR...............................................................................18 5.3.1 Case 1: Prying force QI = QO = 0...