Inelastic Beams under Moment Gradient

Lay, M G; Galambos, Theodore V.

doi:10.1061/jsdeag.0001589

Cited by 64 publications

(11 citation statements)

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“…This beneficial effect is accounted for when considering member stability, but is disregarded when evaluating local cross-sectional stability. This is despite numerous studies [31][32][33][34][35][36] showing improved bending resistances in beams tested in three-point bending (i.e. with a moment gradient) relative to those tested in four-point bending (i.e.…”

Section: Shortcomings Of Current Steel Design Approaches At Cross-section Levelmentioning

confidence: 90%

“…In previous research [31][32][33][34][35][36], it has been observed that laterally restrained steel beams subjected to moment gradients exhibit greater cross-section resistances than the same beams under uniform bending. This has been ascribed to the beneficial effects of strain gradients along member lengths on the local stability of cross-sections [37,48], i.e.…”

Section: Strain Averaging Approachmentioning

confidence: 99%

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Design of web-tapered steel I-section members by second-order inelastic analysis with strain limits

Quan

Kucukler

Gardner

2020

Engineering Structures

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Section: Shortcomings Of Current Steel Design Approaches At Cross-section Levelmentioning

confidence: 90%

Section: Strain Averaging Approachmentioning

confidence: 99%

Design of web-tapered steel I-section members by second-order inelastic analysis with strain limits

Quan

Kucukler

Gardner

2020

Engineering Structures

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“…The beneficial effects of strain gradients on the local stability of cross-sections, i.e. the ability of the less heavily loaded cross-sections to provide some support in resisting local buckling to the adjacent critical cross-section, have been previously recognised [44]. To account for this beneficial effect, a strain averaging approach has been proposed and implemented into design by advanced analysis [20][21][22][23].…”

Section: Key Aspects Of Design By Advanced Inelastic Analysis With Cs...mentioning

confidence: 99%

The Continuous Strength Method – Review and Outlook

2022

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The Continuous Strength Method (CSM) is a deformation-based approach to the design of structures that enables a continuous, rational and accurate allowance for material nonlinearity. Central to the method is the application of strain limits to define the resistance of a structural member or system.The method can be applied to structures formed using different materials and manufacturing processes and can be used for steel-concrete composite design and in fire scenarios. The design method enables enhancements in structural efficiency and, unlike traditional approaches, allows the assessment of both strength and ductility demands (particularly relevant for high strength steel) at the ultimate limit state. For hand calculations, a set of straightforward CSM design equations have been developed. Recognising the increasing importance and use of advanced analysis, recent research, summarised herein, has focused on integration of the CSM strain limits into a framework of design by second order inelastic analysis, where the benefits of the method become even more substantial. This paper provides a review of the background and recent developments, including incorporation into design standards.

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“…In previous research [47][48][49][50][51][52], it has been observed that steel beams subjected to bending moment gradients exhibit greater cross-section resistances than beams with the same geometric and material properties but under uniform bending. This was ascribed to the beneficial effect of local strain gradients along the member lengths on the local stability of cross-sections [31,53], i.e.…”

Section: Procedures For Application Of Csm Strain Limits In Gmniamentioning

confidence: 99%