Experimental and analytical investigation of the ‘tension zone’ components within a steel joint at elevated temperatures

Spyrou, Spyros; Davison, Buick; Burgess, Ian; Plank, R.J.

doi:10.1016/j.jcsr.2003.10.006

Cited by 61 publications

(29 citation statements)

References 13 publications

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“…Therefore in the current model it is assumed that the T-stub assembly fails according to the failure mechanism II. Hence, the stiffness coefficient for the T-stub assembly plt K , which represents the endplate and the beam web, is obtained as [18]: …”

Section: Development Of the Non-linear Proceduresmentioning

confidence: 99%

Modelling partial end-plate connections under fire conditions

Lin

Huang

Fan

2014

Journal of Constructional Steel Research

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This paper presents a simplified robust 2-noded connection element for modelling the behaviour of partial end-plate connections under fire conditions. In this new model the partial end-plate connection is modelled as a 2-noded nonlinear spring element. The characteristics of the springsuch as stiffness, tension, compression, shear strengths and bending moment resistance -are determined based on each component of the connection. It is well known that the rotational response of a partial end-plate connection comprises of two stages, due to the shift of the compression centre of the connection from the end of the endplate to the centre of the beam bottom flange at large rotation. This two stage behaviour is considered in the model proposed. Compared to normal component-based models the most significant of the current model is that this simplified model has very good numerical stability under static solver condition. The model also retains the advantages of both the simple and component-based models. Fourteen tests of partial end-plate connection previously conducted by other researchers were used to validate the proposed model. It is evident that the model is capable to predict the behaviour of flexible end-plate connections under fire conditions. In order to investigate the influences of the connections on the behaviour of steel structures, a series of numerical studies has been conducted on a 2D steel frame, subjected to ISO834 Fire and Natural Fire. It is clear that the model can be used to represent the partial end-plate connections in performance-based fire resistance design of steel-framed composite buildings.

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Section: Development Of the Non-linear Proceduresmentioning

confidence: 99%

Modelling partial end-plate connections under fire conditions

Lin

Huang

Fan

2014

Journal of Constructional Steel Research

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“…In 2004, Spyrou et al [17,18] reported the results of an experimental investigation of the performance of the tension and compression zones of steel joints at elevated temperatures. A total of 45 T-stubs were tested at elevated temperatures and 29 column web transverse compression tests.…”

Section: Experimental Tests On Isolated Jointsmentioning

confidence: 99%

Performance of beam-to-column joints in fire—A review

Al‐Jabri

Davison

Burgess

2008

Fire Safety Journal

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“…It is well known that robustness of steel connection is vitally important to the fire resistance of steel-framed composite buildings. In recent years, a large amount of research has been conducted on the behaviour of steel connections at elevated temperatures [2][3][4][5][6][7][8][9]. Currently, for modelling the behaviour of connections at elevated temperatures there has been mainly three approaches which can be adopted: 1) to represent the moment-rotation characteristics of a connection by mathematical expression (in the form of curve-fitting equations) which is based on moment-rotation-temperature data obtained from experimental fire tests, such as the modified Ramberg-Osgood expression [4];…”

Section: Introductionmentioning

confidence: 99%

A connection element for modelling end-plate connections in fire

Huang

2011

Journal of Constructional Steel Research

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In this paper a robust 2-noded connection element has been developed for modelling the bolted end-plate connection between steel beam and column at elevated temperatures. The connection element allows the element nodes to be placed at the reference plane with offset and the non-uniform temperature distributions within the connection. In this model the connection failure due to bending, axial tension, compression and vertical shear are considered. The influence of the axial tensile force of the connected beam on the connection is also taken into account. This model has the advantages of both the previous simple and component-based models. A total of 23 fire tests were used to extensively validate the model. It can be seen that the current model is robust and has a capability to predict the behaviour of bolted end-plate connection under fire attack with reasonable accuracy. Compared to the tested results the predictions of the current model were mainly on conservative side. Hence, the model can be used for structural fire engineering design on steel-framed composite buildings. The idea described in this paper can also easily be applied to develop other kind of connections, such as simple connection, column base connection or hollow section connection, and so on.

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Experimental and analytical investigation of the ‘tension zone’ components within a steel joint at elevated temperatures

Cited by 61 publications

References 13 publications

Modelling partial end-plate connections under fire conditions

Modelling partial end-plate connections under fire conditions

Performance of beam-to-column joints in fire—A review

A connection element for modelling end-plate connections in fire

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