scholarly journals Numerical Evaluation of Prequalified End-Plate Connections Used in a Framed Steel Industrial Structure

Metals ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 243
Author(s):  
Eduardo Ambiado ◽  
Alvaro Lopez ◽  
Juan C. Vielma
Keyword(s):  
Numerical Evaluation ◽  
Industrial Structure ◽  
Steel Structures ◽  
Past Research ◽  
The Finite Element Method ◽  
Nonlinear Analyses ◽  
End Plate ◽  
Reduced Dimensions ◽  
Plate Connections

The design of end-plate connections for steel structures is more loosely specified in Chilean regulations than in American regulations. Nevertheless, eight-bolt extended stiffened (8ES) end-plate connections have not derived benefit from extensive past research, and therefore, their normative recommendations are quite constraining. In this study, both the prequalification and qualification limits are evaluated, and the linear and nonlinear analyses of a connection from a case study focused on a typical industrial structure, characterized by its reduced dimensions, are carried out. For the design of the connection, a spreadsheet was developed based on AISC 358. The nonlinear analysis was modeled using the finite element method, and it is confirmed that the normative recommendations restrict the design in a very conservative way, resulting in oversizing. Finally, a new optimized connection configuration is proposed and analyzed without stiffeners.

scholarly journals Moment Resistance of I-Section End-Plate Roof Girder Splices; A Case Study

2016 ◽  
Vol 62 (4) ◽  
pp. 187-200
Author(s):  
K. Żółtowski ◽  
P. Kalitowski
Keyword(s):  
Carrying Capacity ◽  
Nonlinear Fem ◽  
Fem Model ◽  
End Plate ◽  
Standard Code ◽  
Plate Connections ◽  
Code Procedure

AbstractThis article deals with the problem of determining the resistance of end-plate connections. A nonlinear FEM model of the joint was constructed in order to predict its carrying capacity. A standard code procedure was done as well. The analyses have been done to assess atypical end-plate joints designed and constructed as a part of roof structures.

Review on High Strength Steel Bolted End-Plate Connections

2015 ◽  
Vol 744-746 ◽  
pp. 265-273
Author(s):  
Xi Yu Wang ◽  
Yong Feng Luo ◽  
Xu Hong Qiang ◽  
Xiao Liu
Keyword(s):  
High Strength Steel ◽  
Structural Engineering ◽  
Mechanical Performance ◽  
Rapid Development ◽  
Steel Structures ◽  
High Strength ◽  
Design Standards ◽  
Existing Problems ◽  
End Plate ◽  
Plate Connections

Past three decades have seen the rapid development of high strength steel (HSS) in its application in structural engineering. However, so far the mechanical performance of a HSS beam-to-column connection has not been systematically studied, especially for bolted end-plate connections, the commonly employed beam-to-column connections in steel structures, which could restrict the application of HSS. Therefore, this paper aims to represent the basic methods, current achievements, recent applications, and the existing problems that lie in the way. In doing so, this paper is composed of three parts, experimental results, numerical analysis as well as component method. At the end, this paper indicates that future investigation should be based upon experimental analysis and proper finite element modeling, to verify a numerical model and to refine design standards.

scholarly journals Numerical model of beem-to-column joint finite stifness

Vestnik MGSU ◽  
2019 ◽  
pp. 179-187
Author(s):  
Ruslan I. Bagautdinov ◽  
Zaur S. Daurov ◽  
Yuriy P. Komarov ◽  
Nikolaiy N. Mostovskiy
Keyword(s):  
Numerical Modeling ◽  
Design Procedure ◽  
Steel Structures ◽  
End Plate ◽  
Seat Angle ◽  
Secant Stiffness ◽  
Extended End Plate ◽  
Plate Connections ◽  
The Moment ◽  
Steel Joints

Introduction. One of the greatest accents in the steel structures researches is the optimization of the design model. It is possible to reduce the cost of steel structures, optimize moment distribution and dynamic characteristics of the frame using the finite secant stiffness, which can be obtained by the described in the paper numerical modeling method. There are a lot of perspectives for the engineer in the field of numerical modeling. Most of them are possible to implement in the design procedure nowadays, but it is important to develop methods and standards for numerical modeling, in order to obtain convenient tools and reliable results. In order to study this issue in more depth, the “moment - turn” curve was studied, maximum stress values were determined, and rigidity and strength characteristics were prepared for each type of joint for structural analysis. Materials and methods. In the program Ansys was modelling three types of steel joints: end-plate connections, double web-angle connections and top and seat angle connections. Results. For three types of joints was obtained ultimate moment, location of destruction and moment-rotation curve. For extended end-plate connections was comparison of the obtained curve with experimental data. Conclusions. Three types of steel joints were modeled in the paper. The numerical modeling results show good correlation with the experimental ones. The data about the behavior of the joints were extracted and analyzed. As result, “moment-angle of rotation” curves were obtained. Finite secant stiffness of the joints for considering steel structures was obtained in the analysis. The resulting finite secant stiffness can be used in the steel frames design procedure.

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.

scholarly journals Stability charts based on the finite element method for underground cavities in soft carbonate rocks: validation through case-study applications

2019 ◽  
Vol 19 (10) ◽  
pp. 2079-2095 ◽  
Author(s):  
Michele Perrotti ◽  
Piernicola Lollino ◽  
Nunzio Luciano Fazio ◽  
Mario Parise
Keyword(s):  
Finite Element ◽  
Safety Margin ◽  
Structural Elements ◽  
The Finite Element Method ◽  
Geometrical Features ◽  
Overall Stability ◽  
Underground Cavities ◽  
The Stability ◽  
Rock Mechanical Properties

Abstract. The stability of man-made underground cavities in soft rocks interacting with overlying structures and infrastructures represents a challenging problem to be faced. Based upon the results of a large number of parametric two-dimensional (2-D) finite-element analyses of ideal cases of underground cavities, accounting for the variability both cave geometrical features and rock mechanical properties, specific charts have been recently proposed in the literature to assess at a preliminary stage the stability of the cavities. The purpose of the present paper is to validate the efficacy of the stability charts through the application to several case studies of underground cavities, considering both quarries collapsed in the past and quarries still stable. The stability graphs proposed by Perrotti et al. (2018) can be useful to evaluate, in a preliminary way, a safety margin for cavities that have not reached failure and to detect indications of predisposition to local or general instability phenomena. Alternatively, for sinkholes that already occurred, the graphs may be useful in identifying the conditions that led to the collapse, highlighting the importance of some structural elements (as pillars and internal walls) on the overall stability of the quarry system.

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
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