Fire resistance performance of steel composite hollow RC column with inner tube under ISO 834 standard fire

2014 ◽  
Vol 15 (4) ◽  
pp. 543-555 ◽  
Author(s):  
Deok Hee Won ◽  
Woo Sun Park ◽  
In-Sung Jang ◽  
Sang-Hun Han ◽  
Taek Hee Han
Keyword(s):  
Fire Resistance ◽  
Rc Column ◽  
Standard Fire ◽  
Steel Composite ◽  
Resistance Performance

Comparison Study of Structural Stabilities for H-Section Columns Built with Ordinary Grade Strength Structural Steels According to Boundary Conditions and Lengths at High Temperature

2014 ◽  
Vol 937 ◽  
pp. 424-427
Author(s):  
In Kyu Kwon
Keyword(s):  
Boundary Condition ◽  
High Temperature ◽  
Boundary Conditions ◽  
Fire Resistance ◽  
Structural Steels ◽  
Structural Members ◽  
Steel Buildings ◽  
Standard Fire ◽  
Fire Curve ◽  
Resistance Performance

Fire resistance performance of structural members has been evaluated from each singular section and standard fire curve since the beginning of fire tests. However, the need of the exact fire resistance of H-section columns applied in the steel buildings has increased. The main reason for this is there is a difference between the conditions being conducted during the fire test and that from real situation. In this paper, the structural stability of H-section column made of an ordinary strength grade structural steels, SS 400, SM 400, and SM 490 at high temperature were evaluated and compared with boundary conditions and column’s length. This was done in order to suggest a new guideline for the application of fire protective materials in steel column in which the boundary conditions and column lengths are different from that tested with hinge to hinge and 3500 mm. The findings from this study showed hinge to hinge boundary condition was more conservative. And fire resistance performance of longer columns in the case of hinge to fixed and fixed to fixed boundary condition than from 3500 mm and hinge to hinge boundary condition can sustain at high temperature without adding fire protective materials.

Study on Estimate of Load Ratio of Doubly Reinforced Concrete Beam Exposed to the Standard Fire

2017 ◽  
Vol 737 ◽  
pp. 465-470
Author(s):  
Jae Hong An ◽  
In Hwan Yeo ◽  
Ki Soo Jeon ◽  
Ki Ho In
Keyword(s):  
South Korea ◽  
Fire Resistance ◽  
Concrete Beam ◽  
Load Ratio ◽  
Reinforced Concrete Beam ◽  
High Rise ◽  
Standard Fire ◽  
Loading Ratio ◽  
Resistance Performance ◽  
Reinforcement Beam

There are a lot of concerns on safety structure performance by being buildings to be large and high-rise. In particular, damage due to the fire recently leads to a large disaster and therefore a variety of countries operate the regulation on the fire resistance performance depending on the building structure. There are differences on the fire resistance design in each country but 50% of the design load is suggested to be reasonable for the normal temperature during the fire by applying the concept of the loading ratio to the fire resistance design of structures. Since the loading ratio is the factor having a major impact on the evaluation of the fire resistance performance, it should be preferentially considered. The study on setting up the loading ratio to evaluate the fire resistance performance and safety of structures has yet to be fully furnished in South Korea. Therefore, in this paper, the loading ratio proper for the construction status in South Korea is to be taken into account and then the ratio is to be proposed on the single reinforcement beam.

Fire Resistance Evaluation of Reinforced Concrete Columns Using Axial Load Ratio and Slenderness Ratio

2014 ◽  
Vol 905 ◽  
pp. 268-272
Author(s):  
In Hwan Yeo ◽  
Bum Yean Cho ◽  
Jae Hong An ◽  
Byung Youl Min
Keyword(s):  
Fire Resistance ◽  
Axial Load ◽  
Slenderness Ratio ◽  
Load Ratio ◽  
Cost Effective ◽  
Concrete Columns ◽  
Accurate Estimation ◽  
Structural Members ◽  
Standard Fire ◽  
Resistance Performance

Since the column members in buildings deal with both vertical and horizontal loads, appropriated amount of load should be estimated in order to evaluate the fire resistance performance of the columns under loaded condition. However, according to the ISO 834, the international standard for the evaluation of structural members, the fire resistance performance evaluation of column members is only based on the displacement and displacement rate under loaded condition in a standard fire. The purpose of this study is to suggest appropriate axial load ratios for the evaluation of fire resistance performance. The test conducted in this study produced appropriate axial load ratios for different slenderness ratios. They are expected to contribute to more accurate estimation of fire resistance performance and more efficient and cost-effective structural design.

scholarly journals Fire Resistance of Steel Composite Beams without Fire Protection

2020 ◽  
Vol 20 (5) ◽  
pp. 83-89
Author(s):  
Jaekwon Ahn ◽  
Inhwan Yeo ◽  
Gyuhwan Cho ◽  
Kyujae Hwang
Keyword(s):  
Fire Resistance ◽  
Design Method ◽  
Load Ratio ◽  
Composite Beams ◽  
Building Structures ◽  
Fire Exposure ◽  
Standard Fire ◽  
Steel Composite ◽  
Fire Design ◽  
Exposure Conditions

In this study, the fire resistance of steel composite beams typically used in building structures was investigated through standard fire and loading tests. For the tests, fire-exposure conditions depending on the steel section shape and load ratio applied to the beams were considered as the test parameters. Based on the test results, the applicability of fire design methods for composite beams recommended in current domestic and overseas fire design codes was analyzed. The results indicate that the current temperature-based design method and reduced flexural capacity method specified by the American Institute of Steel Construction may lead to the conservative fire design of steel composite beams owing to the underestimation of the effects of the fire-exposure conditions and load ratios.

Experimental Study on Fire Resistance Performance of Glulam Beams

2012 ◽  
Vol 193-194 ◽  
pp. 539-543
Author(s):  
Zhao Peng Ni ◽  
Pei Fang Qiu
Keyword(s):  
Fire Resistance ◽  
Failure Modes ◽  
Test Results ◽  
Fire Performance ◽  
Standard Fire ◽  
Resistance Performance ◽  
Fire Resistance Rating ◽  
Resistance Rating ◽  
Resistance Tests

Abstract : A series of standard fire-resistance tests were carried out to study the fire performance, failure modes and fire-resistance ratings of glulam beams. The test results showed that these glulam beams performed well during the tests, and the fire-resistance rating requirements can be achieved as expected. The study has provided necessary knowledge and experimental data for the determination of fire-resistance performance of glulam beams in the fire code of China.

scholarly journals Elastomer Spacers in Fire Conditions

2017 ◽  
Vol 26 (3) ◽  
pp. 109-119
Author(s):  
Paweł Roszkowski ◽  
Bartłomiej Sędłak ◽  
Paweł Sulik
Keyword(s):  
Thermal Degradation ◽  
Fire Resistance ◽  
Load Capacity ◽  
Combustible Material ◽  
Cavity Depth ◽  
Standard Fire ◽  
Degradation Rates ◽  
In Fire ◽  
Resistance Performance ◽  
Fire Conditions

Abstract In the paper, fire resistance of linear joints seal made of elastomer spacers under standard fire conditions, and thermal degradation range of EPDM elastomeric spacers are investigated. The geometry of elastomer spacer joints is important not only for their load capacity under normal conditions - thickness, width, and cavity depth can also influence fire resistance performance. Linear joints of different thicknesses and widths have been tested. The fire insulation and fire integrity were verified for various arrangements. Relatively low thermal degradation rates have been measured, given that EPDM is a combustible material.

scholarly journals Polymer Composites Filled with Metal Derivatives: A Review of Flame Retardants

Polymers ◽  
2021 ◽  
Vol 13 (11) ◽  
pp. 1701
Author(s):  
R. A. Ilyas ◽  
S. M. Sapuan ◽  
M. R. M. Asyraf ◽  
D. A. Z. N. Dayana ◽  
J. J. N. Amelia ◽  
...  
Keyword(s):  
Polymer Composites ◽  
Fire Resistance ◽  
Flame Retardants ◽  
Safety Concern ◽  
Industrial Applications ◽  
Metal Particles ◽  
Thermoplastic Composites ◽  
Flame Resistance ◽  
Metal Derivatives ◽  
Resistance Performance

Polymer composites filled with metal derivatives have been widely used in recent years, particularly as flame retardants, due to their superior characteristics, including high thermal behavior, low environmental degradation, and good fire resistance. The hybridization of metal and polymer composites produces various favorable properties, making them ideal materials for various advanced applications. The fire resistance performance of polymer composites can be enhanced by increasing the combustion capability of composite materials through the inclusion of metallic fireproof materials to protect the composites. The final properties of the metal-filled thermoplastic composites depend on several factors, including pore shape and distribution and morphology of metal particles. For example, fire safety equipment uses polyester thermoplastic and antimony sources with halogenated additives. The use of metals as additives in composites has captured the attention of researchers worldwide due to safety concern in consideration of people’s life and public properties. This review establishes the state-of-art flame resistance properties of metals/polymer composites for numerous industrial applications.

scholarly journals Experimental Study on Delaying the Failure Time of In-Service Cables in Trays by Using Fire-Retardant Coatings

2021 ◽  
Vol 11 (6) ◽  
pp. 2521
Author(s):  
Feng Jiang ◽  
Jianyong Liu ◽  
Wei Yuan ◽  
Jianbo Yan ◽  
Lin Wang ◽  
...  
Keyword(s):  
Fire Resistance ◽  
Failure Time ◽  
Fire Retardant ◽  
Resistance Test ◽  
Control Group ◽  
Engineering Practice ◽  
Standard Fire ◽  
Oil Storage ◽  
Fire Resistance Test ◽  
Test Furnace

Improving the fire resistance of the key cables connected to firefighting and safety equipment is of great importance. Based on the engineering practice of an oil storage company, this study proposes a modification scheme that entails spraying fire-retardant coatings on the outer surface of a cable tray to delay the failure times of the cables in the tray. To verify the effect, 12 specimens were processed using five kinds of fire-retardant coatings and two kinds of fire-resistant cotton to coat the cable tray. The specimens were installed in the vertical fire resistance test furnace. For the ISO 834 standard fire condition, a fire resistance test was carried out on the specimens. The data for the surface temperature and the insulation resistance of the cables in trays were collected, and the fireproof effect was analyzed. The results showed that compared with the control group, the failure time of the cable could be delayed by 1.57–14.86 times, and the thicker the fire-retardant coatings were, the better the fireproof effect was. In general, the fire protection effect of the fire-retardant coating was better than that of the fire-resistant cotton.

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