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RISS 인기검색어
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- 저자 : Paulo Vila Real (검색결과 2 건)
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Behaviour of steel joints under fire loading
Luís Simões da Silva,Aldina Santiago,Paulo Vila Real,David Moore 국제구조공학회 2005 Steel and Composite Structures, An International J Vol.5 No.6
This paper presents a state-of-the-art on the behaviour of steel joints under fire loading and some recent developments in this field, currently being carried out by the authors. Firstly, a review of the experimental research work on steel joints is presented, subdivided into isolated member tests, sub-structure tests and tests on complete building structures. Special emphasis is placed on the seventh Cardington test, carried out by the authors within a collaborative research project led by the Czech Technical University in Prague. Secondly, a brief review of various temperature distributions within a joint is presented, followed by a discussion of the behaviour of isolated joints at elevated temperature, focussing on failure modes and analytical procedures for predicting the moment-rotation behaviour of joints at elevated temperature. Finally, a description of the coupled behaviour of joints as part of complete structures is presented, describing previous work and investigations on real fire (including heating and cooling phases) currently being carried out by the authors.
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Experimental investigation of the behaviour of a steel sub-frame under a natural fire
Aldina Santiago,Luís Simões da Silva,Gilberto Vaz,Paulo Vila Real,António Gameiro Lopes 국제구조공학회 2008 Steel and Composite Structures, An International J Vol.8 No.3
This paper details a testing facility (“NATURAL FIRE FACILITY”) that allows closelycontrolled experimental testing on full-scale sub-frames while reproducing the spatially transient temperature conditions measured in real fires. Using this test facility, an experimental investigation of six steel sub-frames under a natural fire was carried out at the Department of Civil Engineering of the University of Coimbra. The main objective of these tests was to provide insight into the influence of these connection types on the behaviour of steel sub-structures under fire. The experimental layout is defined by two thermally insulated HEA300 columns and an unprotected IPE300 beam with 5.7 m span, supporting a composite concrete slab. Beam-to-column connections are representative of the most common joint type used on buildings: welded joints and extended, flush and partial depth plate. Finally, the available results are presented and discussed: evolution of the steel temperature; development of displacements and local deformations and failure modes on the joints zone.
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