Investigation of bearing failure in steel single bolt lap connections

Draganić, Hrvoje; Dokšanović, Tihomir; Markulak, Damir

doi:10.1016/j.jcsr.2014.02.011

Cited by 27 publications

(15 citation statements)

References 4 publications

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“…Therefore, the given resistances in codes are often based on a deformation criterion. Such load-deflection curves can be found in the literature (see, among others [26][27][28]). The mechanisms and the resistances of the other three cases are similar to the mechanisms from Figure 17.…”

Section: Bearing Capacity From Codesmentioning

confidence: 74%

Application of Discontinuity Layout Optimization to Steel Parts and Steel Connections with a Single Bolt

Timmers

2020

Applied Sciences

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Steel connections are designed with components such as bolts, plates, and welds. The proof of the plates loaded in-plane can be made by hand calculations or more realistic with a nonlinear FE-simulation. As an alternative method, a modified version of the discontinuity layout optimization (DLO) procedure is presented in this paper. The modification takes yield zone mechanisms into account. Furthermore, a compression-only contact was implemented to reproduce the bearing behaviour of bolted connections. The DLO procedure was tested on tensile specimens with and without bolts. The obtained collapse mechanisms and ultimate loads were compared to results from the Eurocode EN 1993-1-8, literature, and FE-simulations. Recommendations to the correct discretization of the tested specimens were given. Especially for the bearing behaviour, modification factors, based on a parameter study, were worked out. The DLO procedure reproduced the collapse loads and mechanisms of all considered cases correctly. The obtained bearing capacities are, in most cases, conservative compared to the Eurocode EN 1993-1-8. The presented research can be seen as the basis for future investigations on more complex problems in steel connections.

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Section: Bearing Capacity From Codesmentioning

confidence: 74%

Application of Discontinuity Layout Optimization to Steel Parts and Steel Connections with a Single Bolt

Timmers

2020

Applied Sciences

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“…After assembly is accomplished, a direct pre-tension load is applied onto the middle plane. As a result, the cap and nut close to the shank start to contact the steel plates and thus create the clamping forces [5,[13][14][15][16][17][18].…”

Section: D Modelling Methodmentioning

confidence: 99%

“…It is found that the bolt hole experiences a significant elongation during the loading process and bolts have a slight rotation due to the eccentric force acting on the bolted connections, which can further accelerate the process of rotation on connected plates. Consequently, the bolted connection experiences both the bearing (shearing) failure in the local region and the overall buckling failure near the connected area [15,53,64,67]. Studies in [68] showed that the bolt hole elongation and ultimate strength for double or multi bolted connections was controlled not only by the material yielding strength but also by the end distance and bolt spacing.…”

Section: Tower Body Insulator/conductor Cable Bolt Connectionmentioning

confidence: 99%

Structural Analysis of Lattice Steel Transmission Towers: A Review

Chen¹,

Ou²

2016

J Steel Struct Constr

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Lattice Transmission Towers (LTT) and the associated transmission line systems are important infrastructure in modern society. Due to the complicated load conditions and the nonlinear interaction among the large number of structural components, accurate structural analysis of the LTT systems has been a challenging topic for many years. Still today there are some gaps between research and industrial practice. This paper presents a summary of research outcomes from current literature. Recent developments in structural modelling and failure prediction technology are reviewed in terms of connection joints, individual members and structural systems subjected to static and dynamic loads. The advantages and disadvantages of different approaches have been compared. Finally, the knowledge gaps, associated challenges and possible research directions are highlighted.

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“…For the angle, gusset plates, and washers a C3D8R type of element was employed, defined as a three-dimensional, hexahedral 8-node linear brick with reduced integration. This type of element has proved to be suitable when simulating lap bolted connections [5,17,28,31]. Bolts were built by using C3D8T and C3D6T elements, which are respectively 8-node thermally-coupled bricks with trilinear displacement and temperature, and a 6-node thermallycoupled triangular prism used to complete the mesh.…”

Section: General Description Of Joint Fe Modelmentioning

confidence: 99%

Numerical Simulations of Ductile Fracture in Steel Angle Tension Members Connected with Bolts

Bernatowska

2020

Civil and Environmental Engineering Reports

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The aim of the paper is to verify and present methodology for ultimate tensile resistance prediction in steel angle tension members connected to gusset plates with one row of bolts. After a description of the experimental investigations, the next step was to build numerical models. The subjects of the experiments consisted of single plate specimens with drilled holes and angles connected to gusset plates with 1, 2, 3, or 4 bolts. Close attention was given to choosing the appropriate material model, which takes into account the influence of microstructural damage and the process of ductile fracture initiation and propagation. The porous Gurson-Tvergaard-Needleman material model was analysed and the paper focuses on hierarchical validation of numerical models of steel angle bolted connections, which will then be used for parametric studies.

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Investigation of bearing failure in steel single bolt lap connections

Cited by 27 publications

References 4 publications

Application of Discontinuity Layout Optimization to Steel Parts and Steel Connections with a Single Bolt

Application of Discontinuity Layout Optimization to Steel Parts and Steel Connections with a Single Bolt

Structural Analysis of Lattice Steel Transmission Towers: A Review

Numerical Simulations of Ductile Fracture in Steel Angle Tension Members Connected with Bolts

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