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

Grimsmo, Erik Løhre; Clausen, Arild Holm; Langseth, Magnus; Aalberg, Arne

doi:10.1016/j.ijimpeng.2015.07.001

Cited by 90 publications

(52 citation statements)

References 18 publications

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“…More recently, in the experimental and numerical studies conducted by Grimsmo el al. [12,13], extended end plate joints were subject to an impact load from a highspeed trolley. Different failure modes were observed for joints in gravity-load direction and reverse direction.…”

Section: Introductionmentioning

confidence: 99%

08.51: An experimental study of composite beam‐column joints subject to impact loads

2017

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Beam-column joints are one of the key elements in steel and composite frames. Till now, many research studies have focused on the behaviour of bare steel beam-column joints and the influence of composite slabs subjected to quasi-static loads. In this study, the research was extended to dynamic loading condition. Two beam-column joint specimens with composite slabs, which were designed based on Eurocode 4, were tested using an MTS drop-weight machine. This loading condition is probably more realistic for joints under progressive collapse scenario, which is a dynamic process. One of the specimens was a middle joint subject to sagging moment. The other specimen was a side joint subject to hogging moment. Behaviour of both joint specimens, including impact force, displacement of the middle column, strain and failure mode, was presented. Differences in the behaviour of the two joint specimens were observed and explained.

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Section: Introductionmentioning

confidence: 99%

08.51: An experimental study of composite beam‐column joints subject to impact loads

2017

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“…(1). In impact related problems, the strain rate sensitivity of steel, or the increase of resistance due to the increased rate of deformation, cannot be neglected.…”

Section: Materials Behaviour and Strain Rate Sensitivitymentioning

confidence: 99%

Numerical and experimental investigation of simply supported steel beams under drop‐weight impact tests

et al. 2019

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Due to the increase in terroristic attack and catastrophic events, the engineering structures are more and more likely to be subjected to abnormal loading conditions. Moreover, exceptional and unpredictable fatalities (extreme wind actions, explosions, car impacts…etc.) could lead to dreadful consequences, such as the partial or total progressive collapse of the structures. In view of this, it is required for engineers and researchers to have a better knowledge of all the phenomena associated to such exceptional loadings on structures. The behaviour of structures under impact, which is the main topic of the present paper, is a complex phenomenon and the response of a structure depends on a large number of variables such as the sensitivity of the materials to high rates of deformation, imperfection of the system, type and velocity of the impacting body among others. The present paper presents the behaviour of simply supported beams under impact loads. In particular, nine drop-weight impact tests have been performed at different level of impact energy. Within the proposed paper, the experimental impact tests conducted on simply support beams will be first presented. Then, exploiting the power of FEM analyses performed using the commercial software Abaqus/CAE© and validated against experimental evidences, different modelling techniques, along with several material models, are examined and compared. From these results, the ability of a detailed FE modelling to predict the response of impacted beams, when a proper modelling of the material behaviour at high rate of deformation is ensured, is discussed and a first estimation of the dynamic increase factor (DIF) for beam under impact loadings is given.

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

Cited by 90 publications

References 18 publications

08.51: An experimental study of composite beam‐column joints subject to impact loads

08.51: An experimental study of composite beam‐column joints subject to impact loads

Numerical and experimental investigation of simply supported steel beams under drop‐weight impact tests

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

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