The behaviour of steel and composite structures under a middle-column-removal scenario

The objective of this research is to study the behaviour of steel and composite structures under a middle-column-removal scenario. Firstly, the behaviour of different types of steel bolted beam-column joints under a middle-column-removal scenario has been studied by experimental tests. A group of nu...

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Main Author: Yang, Bo
Other Authors: Tan Kang Hai
Format: Theses and Dissertations
Language:English
Published: 2013
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Online Access:https://hdl.handle.net/10356/51773
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-517732023-03-03T19:38:09Z The behaviour of steel and composite structures under a middle-column-removal scenario Yang, Bo Tan Kang Hai School of Civil and Environmental Engineering NTU-MINDEF Protective Technology Research Centre DRNTU::Engineering::Civil engineering::Structures and design The objective of this research is to study the behaviour of steel and composite structures under a middle-column-removal scenario. Firstly, the behaviour of different types of steel bolted beam-column joints under a middle-column-removal scenario has been studied by experimental tests. A group of numerical models was developed and validated by the conducted experimental tests. As a result of the success of applying finite element analyses, parametric studies have been conducted using these numerical models to obtain the rotation capacities of various types of connections under catenary action. In addition, from the test results of the first series, it is found that bolted-angle connections normally performed better than other types of connections in the development of catenary action. In order to achieve a better understanding on the performance of bolted-angle connections under a middle-column-removal scenario, nine experimental tests were carried out on different types of bolted-angle beam-column joints. A new mechanical model has also been developed to predict the behaviour of bolted-angle connections under pure tension. This new mechanical model is proposed based on a series of component tests. In this model, the deformation capacities of bolted-angle connection components can be predicted. Based on this mechanical model, component-based models of bolted-angle connections have been proposed to represent the key responses of beam-column joints under a middle-column-removal scenario, including the formation of flexural action at small deformation stage, the development of catenary action at large deformation stage and fractures of the connection components at the last stage. Finally, a series of experimental tests was conducted in order to investigate the behaviour of composite beam-column joints under a middle-column-removal scenario and identify the contribution of composite slab to resist progressive collapse. The experimental tests consisted of two types of tests, namely, middle joints under sagging moment and side joints under hogging moment. A total of five composite beam-column joints with re-entrant steel profile decking were tested. The failure modes, the contribution of composite slab to resist progressive collapse and the key components which control the failure of the composite joints, were discussed in this study. In addition, a component-based model was developed to predict the responses of composite beam-column joints subjected to a middle-column-removal scenario. Doctor of Philosophy (CEE) 2013-04-11T03:46:20Z 2013-04-11T03:46:20Z 2013 2013 Thesis Yang, B. (2013). The behaviour of steel and composite structures under a middle-column-removal scenario. Doctoral thesis, Nanyang Technological University, Singapore. https://hdl.handle.net/10356/51773 10.32657/10356/51773 en 289 p. application/pdf
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic DRNTU::Engineering::Civil engineering::Structures and design
spellingShingle DRNTU::Engineering::Civil engineering::Structures and design
Yang, Bo
The behaviour of steel and composite structures under a middle-column-removal scenario
description The objective of this research is to study the behaviour of steel and composite structures under a middle-column-removal scenario. Firstly, the behaviour of different types of steel bolted beam-column joints under a middle-column-removal scenario has been studied by experimental tests. A group of numerical models was developed and validated by the conducted experimental tests. As a result of the success of applying finite element analyses, parametric studies have been conducted using these numerical models to obtain the rotation capacities of various types of connections under catenary action. In addition, from the test results of the first series, it is found that bolted-angle connections normally performed better than other types of connections in the development of catenary action. In order to achieve a better understanding on the performance of bolted-angle connections under a middle-column-removal scenario, nine experimental tests were carried out on different types of bolted-angle beam-column joints. A new mechanical model has also been developed to predict the behaviour of bolted-angle connections under pure tension. This new mechanical model is proposed based on a series of component tests. In this model, the deformation capacities of bolted-angle connection components can be predicted. Based on this mechanical model, component-based models of bolted-angle connections have been proposed to represent the key responses of beam-column joints under a middle-column-removal scenario, including the formation of flexural action at small deformation stage, the development of catenary action at large deformation stage and fractures of the connection components at the last stage. Finally, a series of experimental tests was conducted in order to investigate the behaviour of composite beam-column joints under a middle-column-removal scenario and identify the contribution of composite slab to resist progressive collapse. The experimental tests consisted of two types of tests, namely, middle joints under sagging moment and side joints under hogging moment. A total of five composite beam-column joints with re-entrant steel profile decking were tested. The failure modes, the contribution of composite slab to resist progressive collapse and the key components which control the failure of the composite joints, were discussed in this study. In addition, a component-based model was developed to predict the responses of composite beam-column joints subjected to a middle-column-removal scenario.
author2 Tan Kang Hai
author_facet Tan Kang Hai
Yang, Bo
format Theses and Dissertations
author Yang, Bo
author_sort Yang, Bo
title The behaviour of steel and composite structures under a middle-column-removal scenario
title_short The behaviour of steel and composite structures under a middle-column-removal scenario
title_full The behaviour of steel and composite structures under a middle-column-removal scenario
title_fullStr The behaviour of steel and composite structures under a middle-column-removal scenario
title_full_unstemmed The behaviour of steel and composite structures under a middle-column-removal scenario
title_sort behaviour of steel and composite structures under a middle-column-removal scenario
publishDate 2013
url https://hdl.handle.net/10356/51773
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