scholarly journals Review on Cold-Formed Steel Connections

2014 ◽  
Vol 2014 ◽  
pp. 1-11 ◽  
Author(s):  
Yeong Huei Lee ◽  
Cher Siang Tan ◽  
Shahrin Mohammad ◽  
Mahmood Md Tahir ◽  
Poi Ngian Shek
Keyword(s):  
Structural Characteristics ◽  
Steel Structures ◽  
Rolled Steel ◽  
Steel Connections ◽  
Steel Framing ◽  
Steel Sections ◽  
Cold Formed Steel ◽  
Hot Rolled ◽  
Hot Rolled Steel ◽  
Review Current

The concept of cold-formed light steel framing construction has been widespread after understanding its structural characteristics with massive research works over the years. Connection serves as one of the important elements for light steel framing in order to achieve its structural stability. Compared to hot-rolled steel sections, cold-formed steel connections perform dissimilarity due to the thin-walled behaviour. This paper aims to review current researches on cold-formed steel connections, particularly for screw connections, storage rack connections, welded connections, and bolted connections. The performance of these connections in the design of cold-formed steel structures is discussed.

scholarly journals Structural Efficiency Of Cold-Formed Steel Purlins

2015 ◽  
Vol 21 (3) ◽  
pp. 809-814
Author(s):  
Vlad Cucu ◽  
Daniel Constantin ◽  
Dan-Ilie Buliga
Keyword(s):  
Economic Impact ◽  
Automotive Industry ◽  
Weight Ratio ◽  
Steel Structures ◽  
Building Industry ◽  
Rolled Steel ◽  
Practical Situation ◽  
Cold Formed Steel ◽  
Hot Rolled ◽  
Hot Rolled Steel

Abstract Cold-formed steel structures represents an alternative to classic buildings made of hot rolled steel profiles which bring a lot of savings based on advanced calculations and also some practical measures in order to provide optimum strength and weight ratio. Due to these advantages, cold-formed steel structures are used in more technical fields including automotive industry, storage industry, military sheltering and of course building industry. The paper is focused on the economic impact of using lightweight members for the main applications of these structures – roof structures and cladding support. The comparison will be made between classic system with hot formed purlins and advanced lightweight purlins made of cold-formed steel elements, in the same practical situation.

scholarly journals Numerical Investigation on Cold Formed Steel Angle Section Portal Frames

2021 ◽  
Vol 10 (1) ◽  
Author(s):  
P. Lakshmi ◽  
Devika Santhosh
Keyword(s):  
Rolled Steel ◽  
Element Analysis ◽  
Displacement Response ◽  
Steel Angle ◽  
Angle Section ◽  
Steel Sections ◽  
Cold Formed Steel ◽  
Load Displacement ◽  
Hot Rolled ◽  
Hot Rolled Steel

Cold formed steel portal frames are widely used as alternative to traditional portal frames made from hot rolled steel sections. Load-displacement response of cold formed steel single C-section portal frames is available. C- section portal frames undergo significant deformation before reaching their ultimate loads. In this study, cold formed steel angle portal frame is analyzed using finite element analysis in order to find the load-displacement response. Bolt pressure is applied at the location of physical bolts in ANSYS. Keywords- Cold formed steel portal frames, fasteners, bolts, connections, Numerical modelling

scholarly journals Structural features of cold-formed steel profiles

2018 ◽  
Vol 4 (2) ◽  
pp. 77
Author(s):  
Osman Tunca ◽  
Ferhat Erdal ◽  
Arif Emre Sağsöz ◽  
Serdar Çarbaş
Keyword(s):  
Building Materials ◽  
Green Building ◽  
Steel Structure ◽  
Structural Features ◽  
Rolled Steel ◽  
Steel Sections ◽  
Cold Formed Steel ◽  
Thin Walled ◽  
Hot Rolled ◽  
Hot Rolled Steel

Using capacity of cold-formed steel sections increases thanks to the opportunities which are offered by the developing technology. Low production cost and variety of profiles that can be produce easy, fast, high quality provide to improve its popularity as a structural material. In production, Sulphur and Phosphorous accumulation region occurs at intersection region of flanges and web of hot rolled steel profile. This causes to decrease strength of profile. Other difference between cold-formed and hot rolled steel sections is that mechanical properties of steel material homogeneously distributes throughout the profile. Both in frame and truss systems, cold-formed steel profiles develop both as main and secondary bearing element. These present variety options to the designers with pure, galvanized, aluminized applications. As with many building materials, mechanical behavior of cold-formed steel profile is quite complex due to the nature of thin walled steel sections. Design and analysis methods of cold-formed steel profile are rapidly shaped day by day. The general theory of beams investigated in past studies make possible analyses of cold-formed steel profile. Moreover, in structural systems, using of cold-formed steel profile provide height strength besides sustainable, environmentalist, green building because it requires less material and cost. Although these profiles have many advantages, use of cold-formed steel profiles in our country structures is rather limited unfortunately. New steel construction regulations in Turkey also do not mention cold-formed thin walled steel structure. Main purpose of this study reviews structural specifications of cold-formed steel profiles which are applied world-wide.

Development of an efficient steel truss system using CFS sections: a comparative study with a hot-rolled steel truss

2020 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Mohammad Adil Dar ◽  
N. Subramanian ◽  
Manmohan Gupta Baniya ◽  
M. Anbarasu ◽  
Hermes Carvalho ◽  
...  
Keyword(s):  
Comparative Study ◽  
Failure Modes ◽  
Weight Ratio ◽  
Steel Structures ◽  
Rolled Steel ◽  
Content Type ◽  
Advantages And Disadvantages ◽  
Steel Truss ◽  
Hot Rolled ◽  
Hot Rolled Steel

PurposeThe purpose of this paper is to discuss the performance of efficient cold-formed steel (CFS) sections in building a truss system. A comparative study was performed comparing trusses built with cold-formed and hot-rolled sections.Design/methodology/approachMedium-scale specimens were fabricated and tested under monotonic loading. Closed CFS sections (tubular sections) were adopted as compression members of the truss, against the open sections (angle sections) in the hot-rolled steel truss. While as open sections (angle sections) were adopted as tension members in both these cases, the performance assessment was made on the basis of the peak loads carried by the trusses, the vertical deflections and the failure modes exhibited.FindingsThe results of this study indicated that the overall strength, strength-to-weight ratio and overall convenience in terms of cost and fabrication, in the CFS truss was better than that of the hot-rolled one. Also, the judicious utilization of steel which has limited reserves can be achieved.Originality/valueCold-formed and hot-rolled sections are widely used in the steel structures. There are advantages and disadvantages in using each of these configurations, discussed in this work. The advantages are widely known by the scientific community; however, few studies are developed with the purpose of quantifying the gains of each solution. Thus, this work emerges with great innovation, with regard to the experimental evaluation of the trusses' behavior composed of different structural sections.

08.07: Performance and capacity of composite “mega columns” with encased hot rolled steel sections

ce/papers ◽  
2017 ◽  
Vol 1 (2-3) ◽  
pp. 1879-1888
Author(s):  
Teodora Bogdan ◽  
Jean-Claude Gerardy ◽  
Donald W. Davies ◽  
Nicoleta Popa
Keyword(s):  
Rolled Steel ◽  
Steel Sections ◽  
Hot Rolled ◽  
Hot Rolled Steel

scholarly journals Study on Strength and Behaviour of Cold-Formed Steel Built-up Columns

2021 ◽  
Keyword(s):  
Steel Structures ◽  
Strength Prediction ◽  
Ultimate Capacity ◽  
Specific Design ◽  
Design Strength ◽  
Heavy Load ◽  
Compression Members ◽  
Cold Formed Steel ◽  
Hot Rolled ◽  
Hot Rolled Steel

Abstract. Cold-formed Steel (CFS), a sort of steel weighing lesser, suits to be a wise choice of material in the construction of steel structures. It has more benefits that indeed make CFS get famous. Effortless installation can be accomplished with the CFS. It also renders a factor that only a few materials show, that is, longevity. Corrosion does not affect the CFS. Employing under moderate loads, CFS finds to be economically feasible when compared with hot-rolled steel. It can be used as compression members comprising single or built-up members. Since a single member cannot sustain the heavy load, the built-up members can be utilized. Open and closed sections are the two sorts of built-up profiles and these profiles show diverse buckling characteristics. This paper lays out a clear outline of the research works done on providing design recommendations to the codes by employing diverse built-up sections. It is reviewed by categorizing the investigated research works based on the kind of CFS sections chosen by each researcher. It was evident from the study that after validation, many researchers have done parametric study on CFS built-up columns to assess the accuracy of the design strength prediction by code specifications. Many codes failed to estimate the section’s ultimate capacity accurately as there are no specific design equations.

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