Application and Validation of a Simplified Approach to Evaluate the Seismic Performances of Steel MR-Frames

Applied Sciences, Journal Year: 2024, Volume and Issue: 14(3), P. 1037 - 1037

Published: Jan. 25, 2024

The main aim of this work is to validate the application a simplified performance-based method for assessing seismic performance steel buildings, focusing particularly on Moment Resisting Frames (MRFs) through nonlinear analyses. This defines capacity curve structure elastic and rigid-plastic analyses, calibrated by regression analyses conducted 420 structures. To assess its accuracy, was compared with other analytical approaches, including incremental dynamic (IDA) provided existing codes. These were performed both real structures simulated designs, considering recent older comparison results derived from code-based approaches IDA, aligned limit states outlined in current codes, showcased high reliability proposed assessment approach.

Language: Английский

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Enhancing load capacity prediction of column using eReLU-activated BPNN model

Structures, Journal Year: 2023, Volume and Issue: 58, P. 105600 - 105600

Published: Dec. 1, 2023

Language: Английский

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EXPERIMENTAL AND NUMERICAL CHARACTERIZATION OF ULTRA LOW-CYCLE FATIGUE FRACTURE OF CFCF RECTANGULAR PLATE ELEMENTS UNDER CYCLIC BENDING

Journal of Structural and Construction Engineering (Transactions of AIJ), Journal Year: 2024, Volume and Issue: 89(820), P. 651 - 662

Published: May 31, 2024

The ultra low-cycle fatigue fracture of open section steel members undergoing local buckling was experimentally investigated using rectangular clamped-free-clamped-free (CFCF) plates, validating a classic macro model (plastic-hinge-based damage model) and phenomenological micro (void growth model, or stress-weighted model). Finite element models were calibrated to the 3D-DIC experimental data further analyze mechanism, characterize stress triaxiality Load angle parameter during buckling.

Language: Английский

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Seismic behaviour of reusable column base connection with pinned energy dissipators

Thin-Walled Structures, Journal Year: 2024, Volume and Issue: 203, P. 112113 - 112113

Published: June 13, 2024

Language: Английский

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Mechanical performance of elliptical one-sided bolted joints for T-stub and hollow section members under tension

Journal of Building Engineering, Journal Year: 2024, Volume and Issue: 91, P. 109721 - 109721

Published: May 24, 2024

This paper presents experimental and numerical investigations on the tensile performance of elliptical one-sided bolted joints in building applications. Two types are examined including T-stub T-hollow joints, where formed by two T-stubs connected together through bolts at their flanges; to a square hollow section (SHS) member with help bolts. A group ordinary is also comparatively studied. Similar failure modes were observed for either or while yield capacity was 9% lower than that joints. Parametric studies further carried out key parameters such as flange thickness wall members It found joint stiffness strength can be improved increase Analytical models based line mechanisms then presented, providing mechanism-based understanding structural assembly. Detailed finite element (FE) constructed considerations bolt pre-tensioning contact behaviours those between head. The deformed configurations specimens successfully described FE modelling differences initial results within about 10%.

Language: Английский

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Exploration of the behavior and evolution features of beam-column joints with T-stub using the structural strain energy method

Structures, Journal Year: 2024, Volume and Issue: 67, P. 106936 - 106936

Published: July 24, 2024

Language: Английский

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