Computational Technology Resources - CCP

Keywords: infill steel walls, moment frames, progressive collapse.

Summary

The phenomenon where local damage of structural elements results in the global collapse of a structure is referred to as progressive collapse. From a series of accidents it was observed that, in order to prevent progressive collapse, a structure should have the ability to offer an alternate path and stability of the structure when an element of vertical load-resisting systems is removed.

Infill steel plates consist of vertical steel plate infills connected to the surrounding beams and columns and installed in one or more bays along the full height of the structure mainly to resist lateral load. According to previous research, they exhibit high initial stiffness and dissipate significant amounts of energy.

In this paper the effect of infill steel panels for enhancing the progressive collapse resisting capacity of moment frames was evaluated. The progressive collapse potential of analysis models was evaluated based on arbitrary column removal scenario. Nonlinear static and dynamic analyses of the model structures were carried out using the finite element analysis code ABACUS. The performance of the structures with infill panels divided by stud columns was also studied. The accuracy of the simplified modelling techniques of steel panels such as strip model and single brace model was investigated in comparison with the analysis results of finite element modelling.

The analysis results showed that the infill steel panels were effective in reducing the progressive collapse potential of moment frames. It was observed that as the thickness of the steel panel increased the progressive collapse resisting capacity also increased. However when the thickness of the steel panels increased higher than a certain level the increase in the progressive collapse resisting capacity is not significant because the columns yielded prior to the yielding of the steel panels. Even when the infill panels were installed in only a part of the span the progressive collapse resisting capacity was somewhat increased. The simplified single braced model of an infill panel corresponded well with the finite element model.

purchase the full-text of this paper (price £20)

go to the previous paper
go to the next paper
return to the table of contents
return to the book description
purchase this book (price £50 +P&P)

	Computational & Technology Resources an online resource for computational, engineering & technology publications
	not logged in - login
Front Page Browse CCP CSETS CTR IJRT Other Authors Search Purchase Guide FAQ Contact us	Civil-Comp Proceedings ISSN 1759-3433 CCP: 100 PROCEEDINGS OF THE EIGHTH INTERNATIONAL CONFERENCE ON ENGINEERING COMPUTATIONAL TECHNOLOGY Edited by: B.H.V. Topping Paper 23 Progressive Collapse Resisting Capacity of Moment Frames with Infill Steel Panels M.H. Lee, H. Lee and J.K. Kim Department of Architectural Engineering, Sungkyunkwan University, Suwon, Korea doi:10.4203/ccp.100.23 purchase the full-text of this paper Full Bibliographic Reference for this paper M.H. Lee, H. Lee, J.K. Kim, "Progressive Collapse Resisting Capacity of Moment Frames with Infill Steel Panels", in B.H.V. Topping, (Editor), "Proceedings of the Eighth International Conference on Engineering Computational Technology", Civil-Comp Press, Stirlingshire, UK, Paper 23, 2012. doi:10.4203/ccp.100.23 Keywords: infill steel walls, moment frames, progressive collapse. Summary The phenomenon where local damage of structural elements results in the global collapse of a structure is referred to as progressive collapse. From a series of accidents it was observed that, in order to prevent progressive collapse, a structure should have the ability to offer an alternate path and stability of the structure when an element of vertical load-resisting systems is removed. Infill steel plates consist of vertical steel plate infills connected to the surrounding beams and columns and installed in one or more bays along the full height of the structure mainly to resist lateral load. According to previous research, they exhibit high initial stiffness and dissipate significant amounts of energy. In this paper the effect of infill steel panels for enhancing the progressive collapse resisting capacity of moment frames was evaluated. The progressive collapse potential of analysis models was evaluated based on arbitrary column removal scenario. Nonlinear static and dynamic analyses of the model structures were carried out using the finite element analysis code ABACUS. The performance of the structures with infill panels divided by stud columns was also studied. The accuracy of the simplified modelling techniques of steel panels such as strip model and single brace model was investigated in comparison with the analysis results of finite element modelling. The analysis results showed that the infill steel panels were effective in reducing the progressive collapse potential of moment frames. It was observed that as the thickness of the steel panel increased the progressive collapse resisting capacity also increased. However when the thickness of the steel panels increased higher than a certain level the increase in the progressive collapse resisting capacity is not significant because the columns yielded prior to the yielding of the steel panels. Even when the infill panels were installed in only a part of the span the progressive collapse resisting capacity was somewhat increased. The simplified single braced model of an infill panel corresponded well with the finite element model. purchase the full-text of this paper (price £20) go to the previous paper go to the next paper return to the table of contents return to the book description purchase this book (price £50 +P&P)
Back to top	©Civil-Comp Limited 2023 - terms & conditions