Dynamic analysis method for the progressive collapse of long-span spatial grid structures
- 20 March 2017
- journal article
- research article
- Published by Techno-Press in Steel and Composite Structures
- Vol. 23 (4), 435-444
- https://doi.org/10.12989/scs.2017.23.4.435
Abstract
Dynamic analysis method for the progressive collapse of long-span spatial grid structures long-span spatial grid structures;progressive collapse;multiple responses;analysis method;construction effect; In the past, the progressive collapse resulting from local failures during accidents has caused many tragedies and loss of life. Although long-span spatial grid structures are characterised by a high degree of static indeterminacy, the sudden failure of key members may lead to a catastrophic progressive collapse. For this reason, it is especially necessary to research the progressive collapse resistance capacity of long-span spatial grid structures. This paper presents an evaluation method of important members and a novel dynamic analysis method for simulating the progressive collapse of long-span spatial grid structures. Engineering cases were analysed to validate these proposed method. These proposed methods were eventually implemented in the progressive collapse analysis of the main stadium for the Universiade Sports Center. The roof of the structure was concluded to have good resistance against progressive collapse. The novel methods provide results close to practice and are especially suitable for the progressive collapse analysis of long-span spatial grid structures.Keywords
This publication has 14 references indexed in Scilit:
- Effect of span length on progressive collapse behaviour of steel moment resisting framesStructures, 2015
- Numerical study of structural progressive collapse using substructure techniqueEngineering Structures, 2013
- A new dynamic increase factor for nonlinear static alternate path analysis of building frames against progressive collapseEngineering Structures, 2013
- Progressive Collapse Analysis and Safety Assessment Method for Steel Truss RoofJournal of Performance of Constructed Facilities, 2012
- Nonlinear inelastic time-history analysis of truss structuresJournal of Constructional Steel Research, 2011
- Dynamic analysis methodology for progressive failure of truss structures considering inelastic postbuckling cyclic member behaviorEngineering Structures, 2011
- Collapse of Katowice Fair BuildingEngineering Failure Analysis, 2009
- Progressive failure analysis for advanced grid stiffened composite plates/shellsComposite Structures, 2008
- Experimentally analyzed stability and ductility behaviour of a space-truss roof systemThin-Walled Structures, 2004
- How did the WTC towers collapse: a new theoryFire Safety Journal, 2003