Significance of Fire Resistance Performance on the Recycled Concrete-Filled Steel Tube

2012 ◽  
Vol 174-177 ◽  
pp. 881-884 ◽  
Author(s):  
Xiao Liu ◽  
Lei Zhao
Keyword(s):  
Fire Resistance ◽  
Steel Tube ◽  
Recycled Concrete ◽  
Structural Components ◽  
Original Performance ◽  
Concrete Filled Steel Tube ◽  
Existing Building ◽  
Waste Concrete ◽  
Fire Properties ◽  
Resistance Performance

Recycled concrete was waste concrete re-processing to restore the original performance, so that the waste of resources to re-use. It’s important to study the recycled concrete fire resistance, by analyzing the frequency of the existing building fire, the extent of waste concrete increasing year by year. Through the analysis of recycled concrete as structural components in the deficiencies of strength, seismic and fire resistance, indicates the importance of anti - fire properties of recycled concrete - filled steel tube.

Research on the Characteristics and Status of Recycled Concrete Filled Steel Tube

2014 ◽  
Vol 580-583 ◽  
pp. 2320-2323
Author(s):  
Bing Wang ◽  
Xiao Liu ◽  
Xiao Yu
Keyword(s):  
Mechanical Properties ◽  
Environmental Protection ◽  
Steel Tube ◽  
Recycled Concrete ◽  
Recycled Aggregate Concrete ◽  
Recycled Aggregate ◽  
Future Application ◽  
Aggregate Concrete ◽  
Concrete Filled Steel Tube ◽  
Waste Concrete

Utilization of waste concrete has a great significance for environmental protection; concrete filled steel tube is a way of utilization of waste concrete. At the same time, the recycled concrete on the center tube has a "hoop" function, can compensate for the deviation of mechanical properties of recycled aggregate concrete. This paper introduces the characteristics of steel recycled concrete, and introduces the research status of domestic experts and scholars on it, based on the above; the future application of the recycled concrete in steel pipe is presented.

Shear response of steel fiber reinforced recycled concrete-filled steel tube columns

2021 ◽  
pp. 136943322110093
Author(s):  
Zhenzhen Liu ◽  
Yiyan Lu ◽  
Shan Li ◽  
Jiancong Liao
Keyword(s):  
Axial Compression ◽  
Steel Fiber ◽  
Steel Tube ◽  
Shear Capacity ◽  
Recycled Concrete ◽  
Recycled Aggregate ◽  
Superposition Method ◽  
Fiber Reinforced ◽  
Concrete Filled Steel Tube ◽  
Shear Span

A comprehensive study of the shear characteristics of steel fiber reinforced recycled concrete-filled steel tube (SRCFST) columns is conducted. 50 CFST stub columns are tested with the variables of steel tube diameter-thickness ratio ( D/t), shear span-to-depth ratio (λ), axial compression ratio ( n), and concrete mix. Two types of cements, three recycled aggregate percentages, three water-cement ratios, and three steel fiber contents are considered in design of concrete mixes. The experimental results show that SRCFST columns present the coincident shear behavior of the ordinary CFST columns. As λ is increased, shear resistance shows a downtrend, while the flexural strength presents an increasing trend. Imposing axial compression or thickening steel tube contributes to an adequate safety margin in plastic period. Based on the contributions superposition method, a predicted model of the shear capacity of SRCFST columns is proposed in consideration of shear-span ratio, axial compression, and self-stress.

scholarly journals Post-fire resistance of concrete filled steel tube columns

2020 ◽  
Vol 988 ◽  
pp. 012036
Author(s):  
Ihssan A Alhatmey ◽  
Talha Ekmekyapar ◽  
Nadheer S Ayoob
Keyword(s):  
Fire Resistance ◽  
Steel Tube ◽  
Concrete Filled Steel Tube

scholarly journals Fire resistance of concrete-filled steel tube columns with preload. Part I: Experimental investigation

2019 ◽  
Vol 223 ◽  
pp. 110994 ◽  
Author(s):  
Min Yu ◽  
Tan Wang ◽  
Weijun Huang ◽  
Huanxin Yuan ◽  
Jianqiao Ye
Keyword(s):  
Experimental Investigation ◽  
Fire Resistance ◽  
Steel Tube ◽  
Concrete Filled Steel Tube

Research of the Stainless Steel-Concrete-Carbon Steel Circular Concrete-Filled Double Skin Steel Tubes under Axial Compression

2014 ◽  
Vol 1065-1069 ◽  
pp. 1349-1353
Author(s):  
Zhen Kai Duan ◽  
Rui Wang
Keyword(s):  
Stainless Steel ◽  
Carbon Steel ◽  
Fire Resistance ◽  
Steel Tube ◽  
Steel Pipe ◽  
Building Structures ◽  
Light Pressure ◽  
Structure Variation ◽  
Concrete Filled Steel Tube ◽  
The Impact

Concrete-Filled Steel Tube with high capacity, good ductility and toughness, convenient construction, good fire resistance and other advantages. Currently[1] . Concrete-Filled Steel Tube structure has been widely used in the basic components and the overall structure of behavioral research has made many achievements. There are many advantages of concrete pipe above, but it also has fatal flaws, Stainless steel steel that is the difference[2]. The stainless steel has a beautiful appearance, durability, corrosion resistance, low maintenance costs, good fire resistance and other advantages. New stainless steel pipe concrete structure has both ordinary steel concrete good mechanical properties and excellent durability of stainless steel, can be widely used in buildings and bridges of the marine environment as well as some of the high durability and aesthetic requirements important building structures. Based on the outer stainless steel hollow sandwich - the carbon steel pipe shaft of light pressure test concrete results of load and displacement of the structure, variation of load and strain, and the impact of the empty heart of these parameters.

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