Showing papers in "Journal of Constructional Steel Research in 2011"

TL;DR: In this paper, a series of tests were carried out on short and slender concrete-filled stainless steel tubular columns to explore their performance under axial compression or combined actions of axial force and bending moment.

TL;DR: In this article, a uniaxial steel constitutive relationship is developed as user-defined material based on the user subroutine interfaces UMAT provided by Finite Element Software ABAQUS.

TL;DR: In this article, a nonlinear analysis of concrete-filled stainless steel tubes (CFSST) stub columns under axial compression was carried out using ABAQUS, where nonlinear material behaviour, enhanced strength corner properties of steel, and initial geometric imperfections were included.

TL;DR: In this article, the correlation of acoustic emission (AE) signal characteristics with crack growth behavior is of paramount importance to structural health monitoring and prognosis for in-service steel bridges.

TL;DR: In this paper, an experimental and analytical study on the behavior of perforated steel beams with closely spaced web openings is presented, where the effect of web opening spacing/web opening depth of web-posts was studied to investigate the effective "strut" action of the web-post buckling.

TL;DR: In this paper, the shear strength of corrugated steel webs with trapezoidal corrugations was investigated. But the results of many of these tests were found to be inconsistent with the theoretical conditions assumed in deriving the hear strength formulas.

TL;DR: In this paper, a new type of composite member, a stainless steel-concrete-carbon steel double-skin tubular (DST) column, is introduced, which combines the advantages of all three types of materials, and has additional advantages of esthetics and resistance to corrosion that outer stainless steel offers.

TL;DR: In this article, the authors present a review of the analysis methods of semi-rigid joints, prediction methods for the mechanical behaviour of joints, and mathematical representations of the moment-rotation curve.

TL;DR: In this article, a balanced design procedure was proposed to improve the seismic response of a special CBF by balancing the primary yield mechanism, brace buckling and yielding, with other, complementary ductile yielding mechanisms, such as gusset plate yielding.

TL;DR: In this article, a series of 24 fire tests on slender circular hollow section columns filled with normal and high strength concrete, subjected to eccentric axial load, was conducted, where the columns were tested under fixed-pinned boundary conditions, with a relative slenderness at room temperature higher than 0.5 for all the specimens.

TL;DR: In this article, a finite element model (FEM) was developed to perform mechanism analysis and parametric studies for concrete filled steel tubes under axial tension, and a simplified formula that can predict the tensile strength was proposed.

TL;DR: In this article, a nonlinear 3-D finite element model was developed to analyse the inelastic behaviour of steel, concrete, longitudinal and transverse reinforcement bars as well as the effect of concrete confinement of the concrete encased steel composite columns.

TL;DR: In this article, a theoretical study and experimental tests on composite steel-concrete structural shear walls with steel encased profiles were performed at Politehnica University of Timisoara, Romania.

TL;DR: In this paper, the authors describe 37 tests conducted on slender circular tubular columns filled with normal and high strength concrete subjected to eccentric axial load and the experimental ultimate load of each test was compared with the design loads from Eurocode 4, which limits the strength of concrete up to 50 MPa.

TL;DR: In this paper, an experimental test and fiber element analysis on 11 circular stub CFST column specimens were conducted to estimate the behavior of a circular column under eccentric loading, and the results from the test and analysis were compared with AISC (2005) [16], Eurocode 4 (1994) [18], and KBCS (2009) [17] to verify the suitability of the analysis in the codes.

TL;DR: In this paper, the design and experimental evaluation of externally bonded carbon fibre-reinforced polymer (CFRP) sheets for strengthening circular steel tubular short columns was presented.

TL;DR: In this paper, a three dimensional nonlinear finite element model has been developed to study the behaviour of composite beams with profiled sheeting oriented perpendicular to its axis, and the analysis of the push test was carried out using ABAQUS/Explicit with slow load application to ensure a quasi-static solution.

TL;DR: In this article, the experimental results of ten fire tests on medium-scale restrained steel sub-frames to investigate the relative behaviour and robustness of different types of steel joint in steel framed structures in fire were presented.

TL;DR: In this article, a finite element analysis (FEA) model for the CFST column to steel beam joint with a reinforced concrete (RC) slab under cyclic loading is presented, which is verified by a set of experimental results presented in the companion paper as well as available test data from other researchers.

TL;DR: In this paper, the effects of fire exposure on the bond behavior of a steel tube and its concrete core were investigated. And the results indicated that fire exposure had a significant effect on the strength of the bond between the tube and the core.

TL;DR: In this paper, an efficient nonlinear 3D finite element model has been developed for the analysis of the beams and the initial geometric imperfection and material nonlinearities were carefully considered in the analysis.

TL;DR: In this article, the design problem of cellular beams is formulated as optimum design problem and the minimum weight is taken as the design objective while the design constraints are implemented from The Steel Construction Institute Publication Number 100 The design methods adopted in this publication are consistent with BS5950 parts 1 and 3.

TL;DR: In this article, a robust variant of genetic programming, namely gene expression programming (GEP), is utilized to build a prediction model for the load capacity of castellated steel beams.

TL;DR: In this article, a series of experimental studies examined the inelastic shear buckling behavior of the low-yield point (LYP) steel plate shear wall under monotonic in-plane load.

TL;DR: In this article, a high-fidelity physics-based computer program, LS-DYNA, is utilized to provide numerical simulations of the dynamic response and residual axial capacity of composite columns subjected to blast loads.

TL;DR: In this paper, the authors investigated the long-term response of ECFST elements to axial loads applied at different concrete ages and found that the assumption of linear creep can apply to ECFst elements with initial concrete compressive stresses up to approximately 80% of the concrete strength, rather than the normally accepted upper limit of 40% to 50% during service life.

TL;DR: In this paper, the authors proposed a modified slenderness ratio that takes into account the connection weld spacing and the minimum radius of gyration of an individual shape in the built-up member.

TL;DR: In this article, a full-range elasto-plastic analysis using continuum mechanics on circular concrete-filled steel tube (CFT) stub columns under concentric loading condition, covering concrete strengths from 30 to 120 MPa and diameter-to-wall thickness ratio (D/t) greater than 20.

TL;DR: In this paper, the seismic performance of steel frames equipped with superelastic SMA braces was investigated, and the results showed that using an SMA element is an effective way to improve the dynamic response of structures subjected to earthquake excitations.

TL;DR: In this article, the vulnerability of three steel frames to disproportionate collapse is assessed using an energy-based nonlinear static pushdown analysis, and the predictions are sufficiently close to the results of a nonlinear dynamic time history analysis that the method would be useful for disproportionate collapse resistant design of buildings with regular steel framing systems.