A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Behavior and design of concentric and eccentrically loaded pultruded GFRP angle columns
https://orcid.org/0000-0002-9667-0855
Abstract This paper reports results of experimental and analytical investigations on the structural behavior of pGFRP angles subjected to concentric and eccentric compression. Members with pin- and fixed-ends were tested under concentric loading. In eccentric compression tests, angles were loaded through one leg by single- and double-bolt end connections. Equations available in design manuals and analytical methods from the literature were evaluated. Failure modes for members subjected to concentric loading agreed well with analytical predictions, except pin-ended columns of lengths near the region of transition from flexural–torsional to flexural buckling mode. Angles connected by the leg were sensitive to flexural–torsional mode and exhibited a different load-deflection behavior in function of the number of bolts in the connection. Results from current design guidelines for concentric compression revealed limitations on the predicted failure load. A new design approach based on the Direct Strength Method provided suitable results. Moreover, it was found that equations based on the Equivalent Buckling Length Method can be an option for the design of pGFRP angles with bolted connections.
Highlights Compression tests on pin-, fixed-, single-bolt and double-bolt ended pGFRP angles. Experimental results were compared against predictions of 10 design procedures. Evaluation of steel codes on designing of pGFRP angle columns. Direct Strength Method is a feasible design approach for concentric loaded members. Equivalent Buckling Length Method is an option for angles loaded through bolted leg.
Behavior and design of concentric and eccentrically loaded pultruded GFRP angle columns
https://orcid.org/0000-0002-9667-0855
Abstract This paper reports results of experimental and analytical investigations on the structural behavior of pGFRP angles subjected to concentric and eccentric compression. Members with pin- and fixed-ends were tested under concentric loading. In eccentric compression tests, angles were loaded through one leg by single- and double-bolt end connections. Equations available in design manuals and analytical methods from the literature were evaluated. Failure modes for members subjected to concentric loading agreed well with analytical predictions, except pin-ended columns of lengths near the region of transition from flexural–torsional to flexural buckling mode. Angles connected by the leg were sensitive to flexural–torsional mode and exhibited a different load-deflection behavior in function of the number of bolts in the connection. Results from current design guidelines for concentric compression revealed limitations on the predicted failure load. A new design approach based on the Direct Strength Method provided suitable results. Moreover, it was found that equations based on the Equivalent Buckling Length Method can be an option for the design of pGFRP angles with bolted connections.
Highlights Compression tests on pin-, fixed-, single-bolt and double-bolt ended pGFRP angles. Experimental results were compared against predictions of 10 design procedures. Evaluation of steel codes on designing of pGFRP angle columns. Direct Strength Method is a feasible design approach for concentric loaded members. Equivalent Buckling Length Method is an option for angles loaded through bolted leg.
Behavior and design of concentric and eccentrically loaded pultruded GFRP angle columns
https://orcid.org/0000-0002-9667-0855
Abstract This paper reports results of experimental and analytical investigations on the structural behavior of pGFRP angles subjected to concentric and eccentric compression. Members with pin- and fixed-ends were tested under concentric loading. In eccentric compression tests, angles were loaded through one leg by single- and double-bolt end connections. Equations available in design manuals and analytical methods from the literature were evaluated. Failure modes for members subjected to concentric loading agreed well with analytical predictions, except pin-ended columns of lengths near the region of transition from flexural–torsional to flexural buckling mode. Angles connected by the leg were sensitive to flexural–torsional mode and exhibited a different load-deflection behavior in function of the number of bolts in the connection. Results from current design guidelines for concentric compression revealed limitations on the predicted failure load. A new design approach based on the Direct Strength Method provided suitable results. Moreover, it was found that equations based on the Equivalent Buckling Length Method can be an option for the design of pGFRP angles with bolted connections.
Highlights Compression tests on pin-, fixed-, single-bolt and double-bolt ended pGFRP angles. Experimental results were compared against predictions of 10 design procedures. Evaluation of steel codes on designing of pGFRP angle columns. Direct Strength Method is a feasible design approach for concentric loaded members. Equivalent Buckling Length Method is an option for angles loaded through bolted leg.
Behavior and design of concentric and eccentrically loaded pultruded GFRP angle columns
Monteiro, Anne C.L. (author) / Malite, Maximiliano (author)
Thin-Walled Structures ; 161
2020-12-28
Article (Journal)
Electronic Resource
English
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