scholarly journals Numerical Study of the Influence of the Distance between Stiffeners on the Loss of Stability of the Web of an I-Section Steel Beam

2020 ◽  
Vol 753 ◽  
pp. 042041 ◽  
Author(s):  
D N Kuznetsov ◽  
N A Ponyavina
Keyword(s):  
Numerical Study ◽  
Steel Beam ◽  
Loss Of Stability ◽  
The Web

scholarly journals Strengthening of Composite Steel-Concrete Beams Openings by Adopting Different Reinforcement Methods

2019 ◽  
pp. 1-17
Author(s):  
Mohamed H. Makhlouf ◽  
Hala M. Refat
Keyword(s):  
Numerical Study ◽  
Concrete Slab ◽  
Low Cost ◽  
Composite Beams ◽  
Experimental Program ◽  
Bottom Surface ◽  
Steel Beam ◽  
Web Openings ◽  
Line Load ◽  
Steel Composite

This paper presents an experimental and numerical study carried out to investigate the flexural and shear behavior of concrete-steel composite beams with circular web openings strengthened using two different techniques around openings. The experimental program conducted on nine simply supported beams which were constructed with different variables. One steel beam and eight concrete-steel composite beams were experimentally tested. The tested beams are of 1500 mm length and BFI cross section of steel beam but composite beams were BFI steel section connected with concrete slab had 300 mm width and 70 mm depth, while this connection is done by headed stud shear connector. The tested specimens subjected to positive bending were loaded by one or two line load across the width of the concrete slab. The main parameters were the type of beams, web openings effect, location of web openings, strengthening techniques around openings externally CFRP strips and vertical steel links using steel plates placed on the top and bottom surface of beams anchored with fine threads, and number of CFRP strips layers. The effect of these parameters on the failure of modes, ultimate load, first cracking load and deflection were investigated. Moreover, a finite element models were developed by ANSYS (version 14) to simulate all the tested specimens, experimental test results were compared with FE results obtained. The experimental results showed that both strengthening systems applied in this research were remarkably increased the beam strength, and the capacity retrieve of beams without openings. This study approved that steel links technique gave more prominent simplicity of use and low cost. FEM models were in good agreement with the corresponding experimental ones. However, the calculated ultimate loads were slightly higher than the experimental ultimate loads up to 10%.

scholarly journals Influence of the Ribs Parallel to Web on Warping and Load-Bearing Capacity of a Steel I-Beam

2019 ◽  
Vol 29 (4) ◽  
pp. 141-148 ◽  
Author(s):  
Krzysztof Wierzbicki ◽  
Maciej Szumigała
Keyword(s):  
Bearing Capacity ◽  
Cross Sections ◽  
Steel Plates ◽  
Steel Beam ◽  
Load Bearing Capacity ◽  
Load Bearing ◽  
Plane Parallel ◽  
Steel Members ◽  
Plane Bending ◽  
The Web

Abstract The article analyses the method of enhancing a steel beam by adding additional steel members like ribs. They are rigidly connected with both flanges in a plane parallel to the web. That plates reduces warping during in-plane bending of steel beam under lateral-torsional bucking. Different thicknesses of steel plates used as ribs and different cross-sections were taken into account. Calculations were conducted using FEM and ABAQUS CAE environment. The outcomes were compared with ones from previous studies which concerned an influence of endplates on load-bearing capacity of an I-beam.

Simplified method for modeling reinforced concrete column–steel beam connections with tube plate

2020 ◽  
Vol 23 (11) ◽  
pp. 2292-2304
Author(s):  
Rahman Jafari ◽  
Nader KA Attari ◽  
Ali Nikkhoo ◽  
Saeid Alizadeh
Keyword(s):  
Reinforced Concrete ◽  
Numerical Study ◽  
Load Cycle ◽  
Cyclic Behavior ◽  
Steel Beam ◽  
Concrete Column ◽  
Tube Plate ◽  
Initial Stiffness ◽  
Reinforced Concrete Column ◽  
Proposed Model

In this article, the cyclic behavior of reinforced concrete column–steel beam connections is investigated. In this research, an experimental and numerical study is conducted on the performance assessment of the through-beam connections with two detailing. The model details consist of the tube plate and steel doubler plate for the joints. The results show that the steel doubler plate increases the yielding capacity and initial stiffness of the connection but has no effect on the maximum capacity of the connection. Results show that using tube plate alone could have a good performance and there is no need for doubler plates. Furthermore, in order to model this type of connection with tube plate, modified model based on the Cordova’s proposed model is presented, and the load-cycle repetition on the connection at both specimens is simulated utilizing the OpenSees software by taking into account the bearing distortions and joint shear, and the obtained results are verified with the experimental ones as well.

Research on the Stiffness of Concrete Filled Steel Tubular Column and Steel Beam Joint with Stiffening Ring

2013 ◽  
Vol 351-352 ◽  
pp. 85-89 ◽  
Author(s):  
Li Jian
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Cross Section ◽  
Steel Beam ◽  
Element Analysis ◽  
Ansys Analysis ◽  
Practical Design ◽  
Cft Column ◽  
The Web

This paper makes research on the stiffness of CFT column and steel beam joint with inner stiffening ring by using finite element analysis (FEA) program ANSYS. Analysis result indicates that the most important factor influencing the stiffness of the joint is the height of cross-section of beam while the thickness of the web plate hardly has any influence on the stiffness. The M-θ model of the CFT joint given by this paper can be used in practical design.

Push-out test on the web opening shear connector for a slim-floor steel beam: Experimental and analytical study

2018 ◽  
Vol 163 ◽  
pp. 137-152 ◽  
Author(s):  
Emad Hosseinpour ◽  
Shahrizan Baharom ◽  
Wan Hamidon W. Badaruzzaman ◽  
Ahmed W. Al Zand
Keyword(s):  
Analytical Study ◽  
Steel Beam ◽  
Shear Connector ◽  
Web Opening ◽  
Push Out ◽  
The Web

Semi-Rigid Analysis of Extended End Plate Connections Based on Correlation and Sensitivity

2010 ◽  
Vol 34-35 ◽  
pp. 197-201
Author(s):  
Jian Rong Pan ◽  
Zhan Wang ◽  
Cheng Su ◽  
Lei Wang
Keyword(s):  
Partial Correlation ◽  
Numerical Study ◽  
Steel Beam ◽  
Element Analysis ◽  
End Plate ◽  
The Finite Element Analysis ◽  
Extended End Plate ◽  
Plate Connections ◽  
Sensitive Parameters ◽  
The Relationship

In traditional semi-rigid analysis of extended end plate connections is assumed to be deterministic parameters, most of moment-rotation models of the joint is determined by curve-fitting and statistically regressed with the test data. Those parameters of the models have little physical meanings and the effect of correlations between parameters is neglected. This paper deals with a semi-rigid joint of extended end plate connections based on correlation and sensitivity analysis. A numerical study was carried out and the finite element analysis was validated compared with the experimental results.The relative moment-rotation model was concluded based on correlations in parameters and probabilistic sentivity analysis. The relationship between height and width of steel beam was partial correlation, the relationship between thickness of steel beam flange and thickness of steel beam web was partial correlation. Height and width of steel beam, the distance of upper bolts to axle wire of steel beam were important sensitive parameters for the extended end plate connections.

scholarly journals Behaviour of Steel Plate Shear Wall in Multi Span Moment Frame with Various Infill Plate Connection to Column

2018 ◽  
Vol 4 (1) ◽  
pp. 126 ◽  
Author(s):  
Amirhosein Raisszadeh ◽  
Alireza Rahai ◽  
Ardeshir Deylami
Keyword(s):  
Steel Plate ◽  
Numerical Study ◽  
Shear Walls ◽  
Boundary Elements ◽  
Moment Frames ◽  
Steel Plate Shear Walls ◽  
Axial Forces ◽  
Plate Connection ◽  
Web Plates ◽  
The Web

Steel plate shear walls consist of thin infill steel plates attached to beams, called (horizontal boundary elements, HBEs), and columns (vertical boundary elements, VBEs) in structural steel frames. The thin unstiffened web plates are expected to buckle in shear at low load levels and develop tension field action, providing ductility and energy dissipation through tension yielding of the web plate. HBEs are designed for stiffness and strength requirements and are expected to anchor the tension field formation in the web plates. VBEs are designed for yielding of web plates and plastic hinge formation at the ends of the HBEs. This design approach may result in very large demand on boundary frame members, especially VBEs in most cases. Several methods such as using LYP, perforating the infill plate and omitting connection of infill plate to columns have been proposed to reduce the moment and axial force demands on the VBEs. The main purpose of this research is to study the behavior of steel plate shear walls with various connection of infill plate to columns in multi span moment frames. A numerical study has been performed in order to investigate the behavior of such a system. The results of proposed system were compared with those of the conventional SPSWs. Results show that reducing the infill plate connection to columns will reduce the axial forces in columns.

Numerical study of rigid steel beam-column joints under impact loading

2018 ◽  
Vol 147 ◽  
pp. 62-73 ◽  
Author(s):  
Bo Yang ◽  
Hao Wang ◽  
Yong Yang ◽  
Shao-Bo Kang ◽  
Xu-Hong Zhou ◽  
...  
Keyword(s):  
Impact Loading ◽  
Numerical Study ◽  
Steel Beam

scholarly journals ANALYSIS OF STEEL I-BEAMS WITH RECTANGULAR WEB OPENINGS: EXPERIMENTAL AND FINITE ELEMENT INVESTIGATION

2015 ◽  
Vol 7 (1) ◽  
pp. 13-23 ◽  
Author(s):  
Samadhan G. Morkhade ◽  
Laxmikant M. Gupta
Keyword(s):  
Finite Element ◽  
Aspect Ratio ◽  
Parametric Study ◽  
Steel Beam ◽  
Element Analysis ◽  
Web Openings ◽  
Finite Element Software ◽  
Fillet Radius ◽  
Load Carrying ◽  
The Web

Steel I-shaped beams with web openings of shapes like hexagonal, circular and rectangular at regular intervals have been used since last 60–70 years. Therefore aim of this paper is to examine the behaviour of steel I-beams with rectangular web openings by performinganexperimental and parametric study. A parametric study based on finite element analysis consists of effect of fillet radius, aspect ratio of rectangular openings, stiffeners position around the openings and effect of positions of openings on load carrying capacities of steel beam with rectangular web openings was carried out by using a commercial finite element software ANSYS v.12. An overall study of such type of beam was carried out and results shows that rectangular openings having fillet radius either 2 times thickness of web or 25 mm (whichever is minimum), aspect ratio of 1.6 and reinforcement either in the form of horizontal or vertical stiffeners around the web openings found to be very effective. The fillet radius and stiffeners also affect the stress distribution around the corner regions of openings. Load carrying capacities of perforated beams are almost equal to plain-webbed beams, when openings are placed within middle two-third(neutral zone) of the span.

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