scholarly journals KUAT TARIK DAN POLA KEGAGALAN KOMBINASI SAMBUNGAN BAUT DAN SEKRUP PADA BAJA CANAI DINGIN

2020 ◽  
Vol 16 (2) ◽  
pp. 144-157
Author(s):  
Muhammad Nur Ikhsan ◽  
Ali Awaludin ◽  
Andreas Triwiyono
Keyword(s):  
Tensile Testing ◽  
Construction Material ◽  
Maximum Load ◽  
Building Structures ◽  
Rolled Steel ◽  
Failure Patterns ◽  
Cold Formed Steel ◽  
Bolt Connection ◽  
Hot Rolled ◽  
Hot Rolled Steel

ABSTRAK Saat ini, material Cold Formed Steel (CFS) lebih umum digunakan karena kekuatan tariknya yang diketahui daripada material Hot Rolled Steel (HRS). Bahan konstruksi CFS tidak hanya digunakan untuk fungsi struktur atap, tetapi juga banyak digunakan sebagai struktur bangunan. Perilaku koneksi kombinasi baut dan sekrup CFS diidentifikasi untuk mengetahui jenis kegagalan dan kapasitas sambungan. Beban maksimum pengujian tarik diterapkan pada dua jenis bahan CFS. Spesimen dalam penelitian ini terdiri dari dua variasi ukuran lembar CFS 40 mm x 340 mm dan 40 mm x 360 mm. Lembar pertama digunakan untuk sambungan sekrup, baut dilengkapi ring, dan baut tanpa ring. Lembar kedua digunakan untuk sambungan kombinasi sekrup dengan baut tanpa ring dan sambungan kombinasi sekrup dengan baut dilengkapi ring. Hasil penelitian menunjukkan bahwa nilai slip spesimen sambungan baut dilengkapi ring lebih besar daripada spesimen sambungan baut tanpa ring. Nilai kapasitas tarik yang diperoleh dari koneksi kombinasi baut dengan washer dan sekrup lebih besar daripada yang tanpa ring dengan sekrup. Pola kegagalan pengujian tarik adalah kegagalan sobek dan kegagalan patah. Kata kunci: kombinasi, sambungan, baut, sekrup, CFS ABSTRACTNowadays, Cold Formed Steel (CFS) materials is more commonly used because of its known tensile strength than Hot Rolled Steel (HRS) material. CFS construction material is not only used for roof structures function, but also widely used as building structures. The behavior of bolt and screw combination connections of CFS was identified to know the type of failure and connection capacity. A maximum load of tensile testing was applied to two type of CFS materials. The specimens in this study consisted of two variations CFS sheet sizes 40 mm x 340 mm and 40 mm x 360 mm. The first sheet is used for screw connectors, bolt with washers, and bolt without washers. The second sheet is used for screw connectors combined with bolts without washer and screw connectors combined with bolts and washer. The results showed that the slip value of the bolt connection specimens with washers was greater than the bolt connection specimens without washer. The tensile capacity value obtained by the bolt combination connection with washer and screw was more rodust than the one without washer and screw. The failure patterns of tensile testing were a pull-through and fracture failures. Keywords: combination, connection, bolt, screw, CFSABSTRAK Saat ini, material Cold Formed Steel (CFS) lebih umum digunakan karena kekuatan tariknya yang diketahui daripada material Hot Rolled Steel (HRS). Bahan konstruksi CFS tidak hanya digunakan untuk fungsi struktur atap, tetapi juga banyak digunakan sebagai struktur bangunan. Perilaku koneksi kombinasi baut dan sekrup CFS diidentifikasi untuk mengetahui jenis kegagalan dan kapasitas sambungan. Beban maksimum pengujian tarik diterapkan pada dua jenis bahan CFS. Spesimen dalam penelitian ini terdiri dari dua variasi ukuran lembar CFS 40 mm x 340 mm dan 40 mm x 360 mm. Lembar pertama digunakan untuk sambungan sekrup, baut dilengkapi ring, dan baut tanpa ring. Lembar kedua digunakan untuk sambungan kombinasi sekrup dengan baut tanpa ring dan sambungan kombinasi sekrup dengan baut dilengkapi ring. Hasil penelitian menunjukkan bahwa nilai slip spesimen sambungan baut dilengkapi ring lebih besar daripada spesimen sambungan baut tanpa ring. Nilai kapasitas tarik yang diperoleh dari koneksi kombinasi baut dengan washer dan sekrup lebih besar daripada yang tanpa ring dengan sekrup. Pola kegagalan pengujian tarik adalah kegagalan sobek dan kegagalan patah. Kata kunci: kombinasi, sambungan, baut, sekrup, CFS ABSTRACTNowadays, Cold Formed Steel (CFS) materials is more commonly used because of its known tensile strength than Hot Rolled Steel (HRS) material. CFS construction material is not only used for roof structures function, but also widely used as building structures. The behavior of bolt and screw combination connections of CFS was identified to know the type of failure and connection capacity. A maximum load of tensile testing was applied to two type of CFS materials. The specimens in this study consisted of two variations CFS sheet sizes 40 mm x 340 mm and 40 mm x 360 mm. The first sheet is used for screw connectors, bolt with washers, and bolt without washers. The second sheet is used for screw connectors combined with bolts without washer and screw connectors combined with bolts and washer. The results showed that the slip value of the bolt connection specimens with washers was greater than the bolt connection specimens without washer. The tensile capacity value obtained by the bolt combination connection with washer and screw was more rodust than the one without washer and screw. The failure patterns of tensile testing were a pull-through and fracture failures. Keywords:combination, connection, bolt, screw, CFS 

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 Flexural Behavior of Rolled Steel I Beam with Different Stiffener Position

2018 ◽  
Vol 7 (4.2) ◽  
pp. 10 ◽  
Author(s):  
Prabha. G ◽  
Emilreyan R
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Flexural Behavior ◽  
Rolled Steel ◽  
Element Analysis ◽  
Concentrated Load ◽  
Failure Patterns ◽  
Hot Rolled ◽  
Hot Rolled Steel ◽  
Element Method

Economy, ease and speed of construction are the main factors for using steel as a building material. In this paper conventional hot rolled steel I-beam sections are considered as the main flexural member of industrial buildings. The main goal is to increase the load carrying capacity of the beam with inverted w shape stiffener condition at centre. The initiative was to identify the maximum load behaviour and deflection of steel beams with stiffener in the web. The performance of such beams has been considered only for vertical loads. Hot rolled steel beam of ISMB 100 with stiffener were tested to failure experimentally. The beams were simply supported at the ends and subjected to a 2 equal concentrated load applied at one third of span from both ends.  The deflection at centre of beam and various failure patterns are studied. All the beams were analyzed by the finite element method by using general finite element analysis software ANSYS and the results were compared with those obtained experimentally. The finite element results for deformation and ultimate strength shows good agreement with the corresponding values observed in the experiments. At last, a comparative study was carried out using finite element method to examine that which type of beam gives best performance during loading. The numerical results indicate that the use of hot rolled I section with stiffener is an economical and advantageous choice. 

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.

DOGAL H 700 LAD

Alloy Digest ◽  
2015 ◽  
Vol 64 (3) ◽  
Keyword(s):  
Yield Strength ◽  
Physical Properties ◽  
Tensile Properties ◽  
Rolled Steel ◽  
Bend Strength ◽  
Hot Rolled ◽  
Hot Rolled Steel ◽  
Minimum Yield

Abstract Dogal H 700 LAD is a galvanized hot rolled steel that is microalloyed and can be cold formed. The 700 signifies the minimum yield strength. This datasheet provides information on composition, physical properties, tensile properties. and bend strength. It also includes information on forming. Filing Code: CS-184. Producer or source: SSAB Swedish Steel Inc..

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