scholarly journals Fire Resistance of Steel Beam to Column End Plate Connections

2016 ◽  
Vol 161 ◽  
pp. 143-149
Author(s):  
Tudor Petrina
Keyword(s):  
Fire Resistance ◽  
Steel Beam ◽  
End Plate ◽  
Plate Connections

scholarly journals New Technique to Improve the Ductility of Steel Beam to Column Bolted Connections: A Numerical Investigation

CivilEng ◽  
2021 ◽  
Vol 2 (4) ◽  
pp. 929-942
Author(s):  
Mohamed A. Shaheen ◽  
Mohamed Ahmed Galal ◽  
Lee S. Cunningham ◽  
Andrew S. J. Foster
Keyword(s):  
Element Model ◽  
Elastic Response ◽  
Steel Beam ◽  
Ultimate Capacity ◽  
Load Path ◽  
End Plate ◽  
Novel Method ◽  
Plate Connections ◽  
Steel Sleeve ◽  
Elastic Design

A novel method to improve the robustness of steel end plate connections is presented in this paper. Existing commonly adopted techniques alter the stiffness of the beam or the end plate to improve the connection’s robustness. In this study, the robustness is enhanced by improving the contribution of the bolts to the rotational capacity of connections; the higher the bolts’ elongation, the higher the rotational capacity that can be achieved. However, the brittleness of the bolt material, combined with its small length, results in negligible elongation. Alternatively, the load path between the end plate and the bolts can be interrupted with a ductile element to achieve the required elongation. This can be achieved by inserting a steel sleeve with a designated length, thickness, and wall curvature between the end plate and the washer. The proposed sleeve should be designed so that its ultimate capacity is less than the force in the bolt at failure; accordingly, the sleeve develops a severe bending deformation before the failure of any connection components. Using a validated finite element model, end plate connections with various parameters are numerically investigated to understand the performance of the sleeve device. The proposed system substantially enhances the rotational capacity of the connections, ranging between 1.37 and 2.46 times that of the standard connection. It is also concluded that the sleeved connections exhibit a consistent elastic response with the standard connections, indicating the proposed system is compatible with codified elastic design approaches without modification. Furthermore, for a specific connection, various ductile responses can be achieved without altering the connection capacity nor configuration.

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 Behavior of Extended End-Plate Steel Beam to Column Connections

2018 ◽  
Vol 12 (1) ◽  
pp. 250-262 ◽  
Author(s):  
Kamal Al Fakih ◽  
Siew Choo Chin ◽  
Shu Ing Doh
Keyword(s):  
Steel Beam ◽  
Nonlinear Behaviour ◽  
Element Analysis ◽  
Concentrated Load ◽  
End Plate ◽  
Experimental Works ◽  
Extended End Plate ◽  
Plate Connections ◽  
The Impact ◽  
Model Segment

Background: The main objective of this study is to simulate the behaviour of steel beam-to-column connections using the computer package of Finite Element Analysis (FEA) known as “ABAQUS”. Objective: This paper presents the investigations of extended End-Plate connections (EP). A one-model segment is examined under the impact of concentrated load and the exclusive boundary conditions were tested. The analysis of the nonlinear behaviour of the connection is a complicated science and needs to use programs to solve this problem. Experimental works are normally conducted for this type of studies which used more of money, time and effort. Therefore, with the availability of simulation applications, these problems can be addressed. Results and Conclusion: The results of the evaluation were compared with the experimental data from the available literature. In this case, nonlinearity materials were used. A sample study on EP connections was carried out using both material and geometric nonlinearities. The comparison of FEA results with corresponding experimental results confirms the correlation and convergence between them.

Analysis on the Seismic Behavior of Extended End-Plate Connections of Steel Frame Structure

2012 ◽  
Vol 193-194 ◽  
pp. 1405-1413 ◽  
Author(s):  
Zhu Ling Yan ◽  
Bao Long Cui ◽  
Ke Zhang
Keyword(s):  
Finite Element ◽  
Cyclic Loading ◽  
Seismic Performance ◽  
Seismic Behavior ◽  
Frame Structure ◽  
End Plate ◽  
Rigid Connection ◽  
Extended End Plate ◽  
Plate Connections ◽  
Steel Frame Structure

This paper conducts analysis on beam-column extended end-plate semi-rigid connection joint concerning monotonic loading and cyclic loading of finite element through ANSYS program, mainly discussed the influence of parameters such as the form of end plate stiffening rib on anti-seismic performance of joint.

Numerical study on seismic behaviors of steel frame end-plate connections

2013 ◽  
Vol 90 ◽  
pp. 140-152 ◽  
Author(s):  
Meng Wang ◽  
Yongjiu Shi ◽  
Yuanqing Wang ◽  
Gang Shi
Keyword(s):  
Numerical Study ◽  
Steel Frame ◽  
End Plate ◽  
Plate Connections ◽  
Seismic Behaviors

Influence of Composite Slab on the Nonlinear Response of Extended End-Plate Beam-to-Column Joints

2018 ◽  
Vol 763 ◽  
pp. 818-825 ◽  
Author(s):  
Roberto Tartaglia ◽  
Mario D'Aniello ◽  
Gian Andrea Rassati ◽  
James A. Swanson ◽  
Raffaele Landolfo
Keyword(s):  
Concrete Slab ◽  
Lateral Loads ◽  
Building Frames ◽  
Beneficial Effects ◽  
End Plate ◽  
Composite Joint ◽  
Extended End Plate ◽  
Plate Connections ◽  
Seismic Area ◽  
Steel Joints

Extended stiffened end-plate connections are widely used in seismic area due to their good performance in terms of both resistance and ductility. The most of existing studies focused on the all-steel behavior of these joints, disregarding the composite action of the concrete slab that is generally disconnected. However, the presence of the concrete slab can have beneficial effects on the structural stiffness for both gravity and lateral loads. Hence, most of the building frames are usually designed considering steel-concrete composite solution. However, the slab can strongly influence the hierarchy between beam and column and the ductility of the joint. In this paper the influence of composite deck on the response of extended stiffened end-plate joins has been investigated by means of finite element analyses (FEAs). In particular, the following details have been investigated: (i) all steel joints without slab; (ii) steel joint with disconnected slab; (iii) composite joint.

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