A Methodology for Combined Rotation-Extension Testing of Simple Steel Beam to Column Joints at High Rates of Loading

Tyas, A.; Warren, James A.; Stoddart, Euan; Davison, Buick; Tait, Simon; Huang, Ya

doi:10.1007/s11340-011-9562-4

Cited by 33 publications

(17 citation statements)

References 4 publications

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“…On the other hand, the behaviour of steel joints subjected to severe impulsive loading is less documented. In the past decade, after the attack on the World Trade Center in New York in 2001, there has been increased interest in the behaviour of steel structures under extreme loading conditions [1][2][3][4][5]. The design code Unified Facilities Criteria [6] states that joints subjected to blast loads should have adequate strength, stiffness, and rotation capacity.…”

Section: Introductionmentioning

confidence: 99%

“…Sabuwala et al [3] and Tyas et al [4] express that there is lack of experimental data published on the behaviour of steel connections subjected to extreme, non-cyclical loading. Karns et al [9] report the results from tests where double-sided beam-to-column joint configurations were subjected to an explosion blast and subsequent progressive collapse load conditions.…”

Section: Introductionmentioning

confidence: 99%

“…Joints with various connections were tested and it was found that the joints can behave in a very ductile manner, even when subjected to high strain-rates. Recently a research group in England started an extensive test program of dynamic tests on bolted steel joints, where single-sided beam-to-column joints loaded at very high strain rates are studied [4,10,11]. They report that dynamic effects increased the stiffness and decreased the ductility of joints with the flexible end-plate connections [4].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

An experimental study of static and dynamic behaviour of bolted end-plate joints of steel

Grimsmo

Clausen

Langseth

et al. 2015

International Journal of Impact Engineering

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Many actions, such as accidental or malicious explosions, may impose high loading rates to structural frames. To enhance the knowledge of the behaviour of joints subjected to severe impulsive loading, a double-sided beam-to-column joint configuration was tested at quasi-static and dynamic loading rates. The test specimens consisted of H-section beams and columns, extended end-plates, and high-strength bolts. In both the quasi-static and dynamic tests, the fracture modes were bolt failure in combination with plastic deformation of the end-plates. However, it was observed that the joints absorbed considerably more energy before failure in the dynamic tests than in the quasi-static tests, partly due to changes in the deformation modes. Also, the ductility of the joints seemed to increase for higher loading rates. These results suggest that the tested joints behave in a preferable manner under extreme impulsive loads.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

An experimental study of static and dynamic behaviour of bolted end-plate joints of steel

Grimsmo

Clausen

Langseth

et al. 2015

International Journal of Impact Engineering

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“…However, reliable formulae for quantifying this performance for the vast number of connection typologies and configurations are often not available (BCSA, 2005). cated by the presence of high axial loads and dynamic strain-rate effects where the rate of rotation has been shown to have a significant effect on connection performance (Tyas et al, 2012). The connection axial load capacity is commonly obtained from direct tension tests (Owens and Moore, 1992), which do not include connection rotation and subsequent prying action, meaning that the predicted axial capacity may be significantly greater than in reality.…”

Section: The Modelling Of Connections During Progressive Collapse Anamentioning

confidence: 99%

A review of progressive collapse research and regulations

Byfield

Mudalige

Morison³

et al. 2014

Proceedings of the Institution of Civil Engineers - Structures

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History has demonstrated that buildings designed to conventional design codes can lack the robustness necessary to withstand localised damage, partial or even complete collapse. This variable performance has led governmental organisations to seek ways of ensuring all buildings of significant size possess a minimum level of robustness. The research community has responded by advancing understanding of how structures behave when subjected to localised damage. Regulations and design recommendations have been developed to help ensure more consistent resilience in all framed buildings of significant size, and rigorous design approaches have been specified for buildings deemed potentially vulnerable to extreme loading events. This paper summarises some of the more important progressive collapse events, to identify key attributes that lead to vulnerability to collapse. Current procedures and guidelines for ensuring a minimum level of performance are reviewed and modelling methods for structures subjected to localised damage are described. These include increasingly sophisticated progressive collapse analysis procedures, including linear static and non-linear static analysis, as well as non-linear static pushover and linear dynamic methods. Finally, fully non-linear dynamic methods are considered. Building connections potentially represent the most vulnerable structural elements in steel-framed buildings; their failure can lead to progressive collapses. Steel connections also present difficulties with respect to frame modelling and this paper highlights benefits and drawbacks of some modelling procedures with respect to their treatment of connections.

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“…In these documents, a column removal scenario was proposed to simulate the initial damage caused by abnormal loading conditions, which was effective in blast-induced damage to columns tested by Karns et al [3]. Several research studies were conducted on bare steel beam-column joints in structural frames under column removal scenarios, including both quasi-static [4] and dynamic [5][6][7][8][9] tests. However, tests considering the contribution of composite slab were limited to quasi-static [10][11][12] loads, although progressive collapse is a dynamic process in nature.…”

Section: Introductionmentioning

confidence: 99%

An experimental study of composite effect on the behaviour of beam-column joints subjected to impact load

Chen

Tan

2018

Proceedings 12th International Conference on Advances in Steel-Concrete Composite Structures - ASCCS 2018

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This paper presents an experimental study on structural behaviour of composite beamcolumn joints under a middle column removal scenario. Specimens were subjected to impact loads from an MTS drop-weight testing machine. Two joints with welded unreinforced beam flange and bolted web connections were designed per AISC 360-10. One of the beam-column joints had a thicker composite slab. The joints were restrained by pinned supports at two beam ends, which were connected to rigid A-frames to represent boundary conditions from adjacent structures. Test results indicated that the composite slab significantly affected the impact force due to an increase of inertia. However, other structural responses (especially displacement of the middle column) decreased due to increase of stiffness contributed by the thicker composite slab. The finding was that increasing thickness of composite slab can increase the resistance of composite joint significantly due to increased composite effect. More experimental studies were conducted to investigate other types of joints.

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A Methodology for Combined Rotation-Extension Testing of Simple Steel Beam to Column Joints at High Rates of Loading

Cited by 33 publications

References 4 publications

An experimental study of static and dynamic behaviour of bolted end-plate joints of steel

An experimental study of static and dynamic behaviour of bolted end-plate joints of steel

A review of progressive collapse research and regulations

An experimental study of composite effect on the behaviour of beam-column joints subjected to impact load

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