Showing papers in "Structures in 2017"

TL;DR: In this paper, the authors present the results of an experimental program where the loadbearing capacity at room temperature of 14 slender circular concrete-filled dual steel tubular (CFDST) columns under axial load was analyzed.

TL;DR: In this paper, a Gene Expression Programming (GEP) model was used to calculate axial force, transverse reinforcement ratio, cross-sectional aspect ratio, compressive strength, and ductility of SR-RCCs.

TL;DR: In this paper, the effect of ultra-high strength concrete (UHSC) on the mechanical response of concrete-filled dual steel tubular columns (CFDST) subjected to eccentric loads was investigated.

TL;DR: In this paper, the seismic behavior and failure modes of blind bolted concrete-filled steel tubular (CFST) frames with semi-rigid connections were investigated under low-cyclic loading.

TL;DR: In this paper, the effect of adding different types of steel braces on the behavioral properties of RC moment resisting frames was investigated and the results indicated that the eccentric brace has a better performance compared to the other specimens.

TL;DR: In this article, the authors reviewed previous studies of bond and anchorage behaviour of reinforced NSC and HSC, their mechanisms and applicability of using confining pressure in developing bond and anchor in facilitating the research development in reinforced concrete (RC) elements.

TL;DR: In this paper, the authors provide an overview of demountable connections and elements for steel and composite structures, including beam-beam connections, column-column connections and beam-slab connectors.

TL;DR: In this article, the authors proposed a design method for the prediction of moment capacity and flexural stiffness for composite cold-formed steel floor beams, which is suitable for incorporation into future revisions of the Eurocodes.

TL;DR: In this paper, a piston-based self-centering bracing (PBSC) system is proposed to reduce the structural deformation during high seismic events by using shape memory alloy (SMA) bars inside a sleeve-piston assembly.

TL;DR: In this article, the authors present an experimental and numerical investigation of the shear behavior of full-scale reinforced concrete (RC) slabs without shear reinforcement under a concentrated load near a linear support in nuclear buildings.

TL;DR: In this article, a strain hardening material model, which can closely represent the stress-strain response of hot-rolled steel, is introduced and incorporated into the CSM design framework.

TL;DR: In this article, a multi-scale model which combined the fiber beam element with the fine element was used to investigate the progressive collapse performance of steel beam to concrete-filled steel tubular (CFST) column connections.

TL;DR: In this paper, the externally bonded CFRP strengthened steel C channel beams were tested to understand the improvement in failure modes and the results indicated that the CFRP strengthening technique employed in the present research work can significantly improve the flexural moment capacity compared to the unstrengthened specimen by converting the lateral torsional buckling (LTB) mode of failure to failure due to yielding.

TL;DR: In this article, the authors proposed appropriate failure criteria for bolt fracture prediction in shear when threads are excluded from the shear plane, and they used finite element modeling and available experimental results of previous researchers.

TL;DR: In this paper, the effect of an opening on the initial stiffness and the ultimate shear strength of a steel plate shear wall with an opening was investigated. But the authors did not consider the impact of the size of the opening.

TL;DR: In this paper, the effects of welding on the tensile performance of the Reheated, Quenched and Tempered (RQT) S690 high strength steel T-stub joints are investigated by both experimental and numerical methods.

TL;DR: In this paper, the dynamic response and catenary action of axially restrained steel beam under impact loadings is examined through a combination of experimental and numerical investigations, with emphasis on the effect of impact energy and the width to thickness ratio of beam flange.

TL;DR: In this paper, the main phenomena to which structures are exposed due to wind actions and the most appropriate analytical, experimental and numerical tools to evaluate and mitigate their consequences in order to make them safe, serviceable, sustainable and cost-efficient.

TL;DR: In this article, an experimental study on seismic performance of a new type of exterior RCS connection, in which a steel profile embedded inside RC column is directly welded to the steel beam, was conducted at the University of Transport and Communications of Vietnam.

TL;DR: In this paper, the authors present the results from the seismic performance-based assessment of a case study of such masonry building stock, addressed to the global seismic response of the building, assumed to be governed by the in-plane capacity of the masonry walls, and taking into account the interaction with the adjacent buildings, shorter and with different floors heights.

TL;DR: In this paper, axial capacity equations for long column CFDST sections are proposed based on strength super-position method of design, which is validated through experimental studies conducted by the authors (for columns having L / D ratio of 20) as well as additional tests reported in literature.

TL;DR: In this paper, a comparison of the seismic response of steel frames by using different types of bracing systems is presented, such as X-braced frames, V braced frames and inverted V-braces.

TL;DR: In this article, the structural behavior of a pavilion vault on spreading supports is investigated by means of experimental tests on a 3D-print scale model made of discrete blocks, and both the collapse mechanisms and the ultimate displacement capacity are analyzed.

TL;DR: In this article, the role of diaphragm flexibility modelling in the global seismic performance of existing masonry structures through a numerical study is examined, and differences observed in the results of equivalent frame modelling versus non-linear finite element modelling, for a set of representative structural models with rigid and flexible diaphrasms, under both static and dynamic analyses, are examined.

TL;DR: In this paper, a finite element numerical model is developed and validated using available test data for composite beams made from HSS acting together with either solid or profiled concrete slabs.

TL;DR: In this paper, the authors provide an overview of various reinforcement coupling systems, as well as a comparative assessment of their "in-air" and "inconcrete" performance, based on results extracted from a collated database.

TL;DR: In this article, a numerical investigation on the shear characteristics of Lean Duplex Stainless Steel (LDSS) rectangular hollow beams is presented, through a parametric study, using the commercial finite element software, Abaqus.

TL;DR: In this article, the authors present numerical techniques for accurate prediction of modal frequencies, which are essential input to contemporary floor vibration serviceability design criteria, based on numerical and experimental studies of effects engineering design variables have on such characteristics.

TL;DR: In this article, the effect of micro concrete on the behavior of RC exterior beam-column connections prepared with recycled coarse aggregate (RCA) under the reversed cyclic loading was investigated, and it was observed that the presence of a micro concrete improved the damage tolerance, load resisting capacity and hence the seismic parameters such as stiffness degradation, ductility and energy dissipation increased.

TL;DR: In this article, the authors extended the classical equivalent truss model for reinforced concrete subjected to shear to take into account the contribution of the encased profiles to the shear stiffness and strength.