International Journal of Steel Structures
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Dynamic Analysis of a Steel Floor System with Dry Slabs Subjected to Vibrations Due to Human Walking
International Journal of Steel Structures - - 2020
One of the contemporary architecture trends is the design of structural elements that cover longer clearances to provide flexibility in the architecture of buildings. The technological and constructive evolutions in civil engineering assure the feasibility of such trends due to the use of structural elements with increased slenderness and reduced weight, such as steel structures that utilize dry s......
An Experimental Study of an SMA-Based Self-Centering Damper
International Journal of Steel Structures - Tập 22 - Trang 610-621 - 2022
The self-centering energy dissipation devices can reduce or avoid the residual inter-storey drifts of structures. This study aims a shape memory alloy (SMA) -based self-centering damper that employs the pre-tensioned SMA wires and pre-compressed springs as energy dissipating group and re-centering group, respectively. Compared with the conventional self-centering dampers which mainly use SMA wires......
Seismic retrofit of structures using steel honeycomb dampers
International Journal of Steel Structures - Tập 17 - Trang 215-229 - 2017
The purpose of this paper is to investigate the seismic performance of a honeycomb shaped steel hysteretic damper applied to seismic retrofit or strengthening of a structure. The formulas for the initial stiffness and yield strength of a damper unit were derived based on the cell wall bending model, and the results were compared with those obtained from finite element analysis. Bilinear model of t......
Determination of optimum location for flexible outrigger systems in tall buildings with constant cross section consisting of framed tube, shear core, belt truss and outrigger system using energy method
International Journal of Steel Structures - Tập 17 - Trang 1-8 - 2017
In this paper, based on maximizing the outrigger-belt truss system’s strain energy, a methodology for determining the optimum location of a flexible outrigger system is presented. Tall building structures with combined systems of framed tube, shear core, belt truss and outrigger system are modeled using continuum approach. In this approach, the framed tube system is modeled as a cantilevered beam ......
Rotational Stiffness Requirements of Closed-Section Stiffeners for Buckling Strength Increment of Stiffened Plates Under Uniaxial Compression
International Journal of Steel Structures - Tập 19 - Trang 1707-1717 - 2019
In these days, closed form solutions to estimate the strength increment in the local buckling strength due to the rotational stiffness of the closed-section ribs have been proposed through theoretical approaches using the energy methods and parametric numerical analysis. In this paper, the correlations between the local buckling strength of longitudinally stiffened plates and the rotational restra......
Finite element investigation of shear capacity of locally corroded end panel of steel plate girder
International Journal of Steel Structures - Tập 13 - Trang 623-633 - 2014
This study discusses the effect of local corrosion damages nearby the bearing region including the bearing stiffener and adjacent web damage on the ultimate shear and post-buckling strength of steel plate girder bridges. A computer package ABAQUS is utilized for the verification and extension of the numerical study. Various corrosion damage cases, specifically the bearing stiffener are studied con......
Random Vibration Analysis of a Vehicle–Bridge Interaction System Subjected to Traveling Seismic Ground Motions Using Pseudo-excitation Method
International Journal of Steel Structures - Tập 22 - Trang 1669-1685 - 2022
For long, multi-span bridges, traveling seismic waves arrive at different bridge support points at different times. To study this difference, random dynamic vibration analysis of a vehicle–bridge interaction system under traveling seismic ground motions was performed in the present paper. A vehicle model with 27 degrees of freedom is used, while three-dimensional Euler beams are used to model the ......
Comparative Analysis of Code-Based Dynamic Column Removal and Impact-Induced Progressive Collapse in Steel Moment-Resisting Frames
International Journal of Steel Structures - Tập 23 - Trang 1576-1586 - 2023
Civil structures are subjected to accidental or intentional impacts, which can lead to an initial failure, and subsequently to a tragic progressive collapse. While progressive collapse studies have seen significant growth, most of the current research focuses on threat-independent approaches, neglecting the explicit consideration of impact effects on the building’s behavior. In this study, we inve......
Geometry and mechanical behaviour of radially retractable roof structures during the movement process
International Journal of Steel Structures - Tập 16 - Trang 755-764 - 2016
In this paper, the kinematic characteristic of the radially retractable roof structure was firstly discussed and the motion boundary of the system was also studied. The results show that the diameter of the outer boundary of the system increases firstly and then decreases when the roof is open. Moreover, the numerical study of the structural behavior of the retractable roof with radial foldable ba......
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