Size Effect on Nominal Strength of Lightweight and Normal Concrete-Filled Steel Tube Columns under Axial Compression: Mesoscale Simulations

2020 ◽  
Vol 146 (12) ◽  
pp. 04020265 ◽  
Author(s):  
Liu Jin ◽  
Huiming Chen ◽  
Lingling Fan ◽  
Ping Li ◽  
Xiuli Du
Keyword(s):  
Size Effect ◽  
Axial Compression ◽  
Steel Tube ◽  
Normal Concrete ◽  
Concrete Filled Steel Tube ◽  
Nominal Strength ◽  
Mesoscale Simulations

Stone prism encased concrete-filled steel tube columns subjected to axial compression

Structures ◽  
2021 ◽  
Vol 33 ◽  
pp. 1853-1867
Author(s):  
Yong Ye ◽  
Yang Liu ◽  
Zi-Xiong Guo ◽  
Rachel Chicchi
Keyword(s):  
Axial Compression ◽  
Steel Tube ◽  
Concrete Filled Steel Tube

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.

Reliability analysis of concrete-filled steel tube columns under axial compression

2021 ◽  
Author(s):  
Tran-Trung Nguyen ◽  
Phu-Cuong Nguyen ◽  
Viet Trinh Tran ◽  
Duc-Duy Pham ◽  
Lahouari Benabou
Keyword(s):  
Reliability Analysis ◽  
Axial Compression ◽  
Steel Tube ◽  
Concrete Filled Steel Tube

Experimental Study on Expansive Concrete Filled Steel Tube

2013 ◽  
Vol 275-277 ◽  
pp. 2077-2083
Author(s):  
Kai Cheng Huo ◽  
Xian Cheng Shu ◽  
Huan Huan Yue
Keyword(s):  
Experimental Study ◽  
Temperature Change ◽  
Axial Compression ◽  
High Strength ◽  
Steel Tube ◽  
Concrete Filled Steel Tube ◽  
Vertical Loading ◽  
Expansive Concrete ◽  
Hardening Process ◽  
Mix Proportion

Measure the temperature change of concrete-filled steel tubular with high strength low heat micro-expansive in its hardening process with different mix proportion. Study self-stress of high strength low-heat micro-expansive and study the relations of the expansive admixtures quantity and its changing regularity with the time. Observe the fail of axial compression short column of concrete-filled steel tubular with high strength expansive under vertical loading, study the changing regularity of its stress under loading.

A unified formulation for hollow and solid concrete-filled steel tube columns under axial compression

2010 ◽  
Vol 32 (4) ◽  
pp. 1046-1053 ◽  
Author(s):  
Min Yu ◽  
Xiaoxiong Zha ◽  
Jianqiao Ye ◽  
Chunyan She
Keyword(s):  
Axial Compression ◽  
Steel Tube ◽  
Concrete Filled Steel Tube
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