scholarly journals Experimental Investigation of Fire Effect of Joint Elements Used in Steel Structures

2020 ◽  
Vol 10 (4) ◽  
pp. 2692-2703
Author(s):  
Casim YAZICI ◽  
Abdulhadi KOŞATEPE
2013 ◽  
Vol 671-674 ◽  
pp. 424-429
Author(s):  
Wei Feng Zhang ◽  
Zhi Kun Guo ◽  
Wang Jun Ren ◽  
Yong Hui Wang ◽  
Lan Fu Cao ◽  
...  

Small span arch steel structures on spring-settlement support and normal support were designed as research objects. 1kg, 2kg, 3kg and 5kg TNT group charges were detonated respectively on the center surface of backfill above the structure. Numerous data was obtained during these tests. The comparisons of measured parameters were done between the structure with spring-settlement support and normal support. The results indicate that, the structure with spring-settlement support can reduce the magnitude of internal force of the structure, decrease the dynamic effects on the structure significantly, and enhance the bearing capacity.


2012 ◽  
Vol 166-169 ◽  
pp. 322-328
Author(s):  
Huai Lin Peng ◽  
Feng Zhou ◽  
Le Wei Tong

A series of tests on cold-formed steel square and rectangular hollow sections subjected to web crippling is reported in this paper. The web crippling tests were conducted under two loading conditions of end-two-flange (ETF) and interior-two-flange (ITF), which are specified in the current North American Specification for cold-formed steel structures. The concentrated load was applied by means of bearing plates, which act across the full flange width of the specimen sections. Different bearing lengths were investigated. The test specimens were fabricated by cold-rolling from steel sheet with nominal yield strength of 345MPa. The measured web slenderness values of the tubes ranged from 15.5 to 46.0. The test strengths obtained from this study are compared with the design strengths obtained using the current North American Specification, Australia Standard, European Code and Chinese Code for cold-formed steel structures. It is shown that the design strengths predicted by the specifications are either unreliable or too conservative.


2013 ◽  
Vol 577-578 ◽  
pp. 397-400 ◽  
Author(s):  
Vit Křivý ◽  
Viktor Urban ◽  
Lukáš Fabián

This paper introduces the experimental corrosion tests that are carried on the existing weathering steel structures in the Czech Republic. The influence of the position and location of the surface in the structure on the resulting corrosion rates can be evaluated using this experimental testing. Typical surfaces of steel bridges are tested, e.g. webs of main girders, upper and lower surfaces of flanges, surfaces affected by leaking salt solutions. Results of the corrosions tests are used for the specification of corrosion prediction model.


Materials ◽  
2021 ◽  
Vol 14 (22) ◽  
pp. 6797
Author(s):  
Gregorio Torres-Escobar ◽  
Juan Carlos Suárez-Bermejo ◽  
José Manuel Arenas

This research shows the results of an experimental investigation carried out on the compression behavior of hybrid steel tubes formed by two concentric steel tubes and four different fillers of non-metallic material interposed between both tubes: polyurethane foam, polyurethane, epoxy and a cement-based mortar. The tests show that the incorporation of a resistant filler in the double tube allows it to improve its mechanical behavior by allowing a second load cycle. Furthermore, the strain energy absorbed during the two cycles led to the conclusion that the epoxy-filled tube absorbed more energy per unit of weight than the other resistant fillers.


2011 ◽  
Vol 33 (2) ◽  
pp. 516-531 ◽  
Author(s):  
M. D’Aniello ◽  
F. Portioli ◽  
L. Fiorino ◽  
R. Landolfo

2012 ◽  
Vol 204-208 ◽  
pp. 1267-1270
Author(s):  
Yue Song Liu ◽  
Yu Ching Wu

To predict the behavior of steel structure under fire effect, the material property is very important in the analysis of steel structure at high temperature. This paper adopted finite element method to investigate the nonlinear behavior of steel structures under high temperature and creep conditions. We studied the creep strains with different models of creep. Differences between these models are highlighted. Furthermore, the importance of creep effect in fire is discussed.


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