Collapse Mechanism of a Space Structure Under Fire Conditions

ce/papers ◽  
2021 ◽  
Vol 4 (2-4) ◽  
pp. 1367-1370
Author(s):  
Shariq Naqvi ◽  
Feng Fu
Keyword(s):  
Space Structure ◽  
Collapse Mechanism ◽  
Fire Conditions

Improving the robustness of steel frame structures under localised fire conditions

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Riza Suwondo ◽  
Lee Cunningham ◽  
Martin Gillie ◽  
Made Suangga ◽  
Irpan Hidayat
Keyword(s):  
Progressive Collapse ◽  
Steel Frame ◽  
Frame Structures ◽  
Collapse Mechanism ◽  
Building Structures ◽  
Content Type ◽  
Catenary Action ◽  
Lateral Resistance ◽  
Steel Frame Structures ◽  
Fire Conditions

PurposeThe robustness of building structures in a fire has recently drawn wide attention. This study presents the progressive collapse analysis of steel frame building structures under localised fire. The main objective of this study is to propose methods to enhance the structural collapse resistance of such structures in fire.Design/methodology/approachA modelling method was developed and validated against both experimental and analytical studies. Then, a series of robustness analyses were performed to investigate the interaction among the members and the pattern of load distribution within the structures. These analyses show that lateral resistance and load redistribution have a vital role in the robustness of the building. Thus, two approaches have been adopted to enhance the robustness of the focused steel frame during a fire.FindingsIt is found that increased size of floor beams and vertical bracing systems are effective measures in preventing whole structure collapse. The larger beam section is able to prevent catenary action so that the load in the failed columns can safely transfer to the adjacent columns without buckling. On the other hand, the bracing system improves the lateral resistance that can accommodate the lateral force when catenary action occurs in the beam.Originality/valuePrevious studies have focused on the collapse mechanism of steel frame structures. However, the parameters affecting the structural robustness in a fire have not yet been explored. To address this gap, this study adopted numerical modelling to undertake parametric studies to identify effective methods to improve the robustness of such structures under fire conditions.

Specular and direct radiative loads on space structure

1986 ◽  
Author(s):  
A. EMERY ◽  
A. ABROUS ◽  
D. HEDGLEY, JR.
Keyword(s):  
Space Structure

Integrated Controls-Structures Optimization of a Large Space Structure

1990 ◽  
Author(s):  
SHARON PADULA ◽  
JOANNE WALSH ◽  
CHRIS SANDRIDGE ◽  
RAPHAEL HAFTKA
Keyword(s):  
Space Structure ◽  
Large Space ◽  
Large Space Structure

Deployment Dynamic Analysis of a Space Structure

2021 ◽  
Author(s):  
Haiyang Luo ◽  
Tanhui Wu ◽  
Yangqing Hou ◽  
Houfei Fang
Keyword(s):  
Dynamic Analysis ◽  
Space Structure

Unfurlable Space Structure Optimization

2021 ◽  
Author(s):  
Munira Sibai ◽  
Daisaku Inoyama ◽  
Tom G. Stoumbos ◽  
Rakesh K. Kapania
Keyword(s):  
Structure Optimization ◽  
Space Structure
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