Design of corrugated sheets exposed to fire

Sokol, Zdeněk; Wald, František; Kallerová, P.

doi:10.12989/scs.2008.8.3.231

Cited by 4 publications

(5 citation statements)

References 1 publication

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“…Previous studies have recommended an average holding time of two to three hours for the compression moulding of hybrid composites containing natural fibers. This also helps natural fibers function as a potential composite reinforcement [14]. Therefore, after 3 h of holding period, the manufactured PTGE based SCSP were extracted from the mould cavity.…”

Section: Fabrication Of Ptge Based Scspmentioning

confidence: 99%

“…Due to these attributes, the lattice structure has excellent application potential. However, industrialising raw materials (particularly carbon fibres) and complex preparation processes is more expensive and difficult [14]. The design of materials and structures is not only concerned with performance but also ensures effective cost management [15].…”

Section: Introductionmentioning

confidence: 99%

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Acoustical behavior of camellia sinensis/ananas comosus fiber based uni-directional corrugated panel for sound damping application

Karthi

Gokulkumar

Sathish

et al. 2022

Mater. Res. Express

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To achieve a durable, rigid, and lightweight construction material, a new class of Camellia sinensis / Ananas comosus fiber-enhanced corrugated sandwich panel was designed and produced. The crushed core layer comprises sinusoidal corrugation and is manufactured by a method of mould pressing in an attempt to assess this material's sound absorption ability. In addition, the influence of airgap and micro perforation on sound absorption properties was investigated. The samples with a greater perforation ratio and air gap are found to have a noise reduction coefficient (NRC) of 0.745, which can be used to attenuate mid- and high-range frequencies in industrial environments.

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Section: Fabrication Of Ptge Based Scspmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Acoustical behavior of camellia sinensis/ananas comosus fiber based uni-directional corrugated panel for sound damping application

Karthi

Gokulkumar

Sathish

et al. 2022

Mater. Res. Express

View full text Add to dashboard Cite

show abstract

“…Four sets of experiments have been performed. In 2005, two sets of tests were carried out [2]. In set A, E-VS BOHR 5-5.5×38 screws and a sealed washer AE19 mm were used.…”

Section: Experiments With Screwed Connectionsmentioning

confidence: 99%

Connections of Trapezoidal Sheets under Fire

Kallerová¹,

Wald²,

Sokol³

2009

Acta Polytech

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This paper describes two different experiments on connections of trapezoidal sheets under elevated temperatures. The first experiments were tensile tests carried out on four sets of tests with screwed connections under ambient and elevated temperatures. One diameter of self-drilling screws and three different thicknesses of trapezoidal sheets were used. The applied screws were without washers, or with sealed or steel washers. The second experiment was performed in a laboratory furnace to check the catenary action of a thin-walled trapezoidal sheet. The basic theory tested in this experiment was that in the first phase of the fire the sheet behaves as a simply supported beam, while in the second phase the load bearing is transferred by a tension membrane. These experiments will be used to develop a design model of connections at high temperatures. High fire resistance of the trapezoidal sheet, dependent on suitable design of the screwed connection to the bearing structure, was confirmed. The experiment with the simple beam also confirmed catenary action.

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“…Researches [1,5] have revealed that failures normally do not take place in the screw connector itself. So the following assumptions are made in the analysis: the screw connector has the higher strength and rigidity than other materials in the connection assembly.…”

Section: Materials Modelingmentioning

confidence: 99%

“…It has been shown from researches [1,2] that axial forces can often be generated in steel deck when the roof sheeting is loaded transversely and is connected to purlin or directly to the trusses with screw fasteners, in fire. Due to the restraints to thermal expansion these forces are initially compressive.…”

Section: Introductionmentioning

confidence: 99%

Finite Element Modeling of Single Lap Shear Screw Connection in Steel Sheeting in Fire

Lü¹,

Mäkeläinen²,

Outinen³

2008

TOBCTJ

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Abstract:The load bearing steel deck is used in insulated metal deck roofing system for industrial buildings with lowpitched roof areas. The steel sheeting sections are manufactured with cold forming from thin steel strip and are attached to the underlying purlins or more commonly straight to the steel trusses by self-drilling or self-tapping screws. The behavior of sheeting connections is important in fire especially when the sheeting is in catenary action and tensile forces are developed at supports where the screw connectors are located. A 3D finite element model is created using ABAQUS software to simulate the single lap screw connections connecting thinner sheet (0.8 mm) to thicker sheet (10 mm) under static shear at both room and high temperatures. This model considers the material nonlinearity, large deformation and contact behavior. The connection model is analyzed through the elastic and plastic ranges up to failure. The analysis reveals that the failure modes of the connection for both room and elevated temperatures are bearing failure of the thinner sheet. The load bearing capacity of the connections depends on the friction between the washer and the thinner sheet, the direct bearing of the screw shank against the thinner sheet and the postbuckling resistance of thinner sheet. Degradation of material at elevated temperature further reduces the strength and stiffness of the connections. This connection model can be taken as a component model in the analysis of the behavior of steel sheeting system in fire, which is highly non-linear so as to save the computing time.

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Design of corrugated sheets exposed to fire

Cited by 4 publications

References 1 publication

Acoustical behavior of camellia sinensis/ananas comosus fiber based uni-directional corrugated panel for sound damping application

Acoustical behavior of camellia sinensis/ananas comosus fiber based uni-directional corrugated panel for sound damping application

Connections of Trapezoidal Sheets under Fire

Finite Element Modeling of Single Lap Shear Screw Connection in Steel Sheeting in Fire

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