Response of Beam-To-Column Web Cleated Joints For FRP Pultruded Members

Article


Qureshi, J. and Mottram, J. Toby 2013. Response of Beam-To-Column Web Cleated Joints For FRP Pultruded Members. Journal of Composites for Construction. 18 (2), pp. 1-11.
AuthorsQureshi, J. and Mottram, J. Toby
Abstract

Physical testing is used to characterize the structural properties of beam-to-column joints, comprising pultruded fiber-reinforced
polymer (FRP) H-shapes of depth 203 mm, connected by 128 mm-long web cleats and two M16 bolts per leg. Testing is performed on two
batches of nominally identical specimens. One batch had web cleats of pultruded FRP and the other had structural steel. The structural
behavior of the joints is based on their moment-rotation responses, failure modes, and serviceability vertical deflection limits. Joints with
FRP cleats failed by delamination cracking at the top of the cleats, and when the cleats were of steel, the FRP failure occurred inside the
column members. Neither failure mode is reported in the design manuals from pultruders. At the onset of the FRP damage, it was found that
the steel joints were twice as stiff as the FRP joints. On the basis of a characteristic (damage) rotation, calculated in accordance with Eurocode
0, the serviceability deflection limits are established to be span/300 and span/650 for the joints with FRP and steel cleats, respectively. This
finding suggests that appropriate deflection limits, in relation to cleated connections, should be proposed in manufactures’ design manuals
and relative design standards and design codes. Failure to address the serviceability, by the engineer of record, could lead to unreliable
designs.

KeywordsWeb cleats; Pultruded joints; Damage onset; Moment-rotation response; Deflection limit
JournalJournal of Composites for Construction
Journal citation18 (2), pp. 1-11
ISSN1943-5614
1090-0268
Year2013
PublisherAmerican Society of Civil Engineers
Accepted author manuscript
License
CC BY-NC-ND
Digital Object Identifier (DOI)doi:10.1061/(ASCE)CC.1943-5614.0000392
Publication dates
Print07 Nov 2013
Publication process dates
Deposited09 Feb 2017
Accepted02 May 2013
FunderEngineering and Physical Sciences Research Council (EPSRC)
Access Engineering and Design, Telford UK
Engineering and Physical Sciences Research Council
Access Engineering and Design, Telford UK
Copyright information© 2013 American Society of Civil Engineers
Additional information

Page Number details - 04013039-1 to 04013039-11

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