Flexural strengthening mechanism of concrete-filled steel tube beam by welding round steel at soffit of the beam

Structures ◽  
2021 ◽  
Vol 34 ◽  
pp. 2243-2261
Author(s):  
Dejun Liu ◽  
Zhiheng Xia ◽  
Jun Wang ◽  
Jianping Zuo
Keyword(s):  
Strengthening Mechanism ◽  
Steel Tube ◽  
Concrete Filled Steel Tube ◽  
Flexural Strengthening

Flexural behavior of composite concrete-filled steel tube roof structure under symmetrical concentrated loads

Structures ◽  
2021 ◽  
Vol 32 ◽  
pp. 1250-1259
Author(s):  
Lianguang Wang ◽  
Xue Li ◽  
Bailing Chen ◽  
Haiyang Gao
Keyword(s):  
Steel Tube ◽  
Flexural Behavior ◽  
Concentrated Loads ◽  
Concrete Filled Steel Tube ◽  
Roof Structure

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.

Coupled ultimate capacity of CFRP confined concrete-filled steel tube columns under compression-bending-torsion load

Structures ◽  
2021 ◽  
Vol 31 ◽  
pp. 558-575
Author(s):  
Yu-Hang Wang ◽  
Yu-Yan Wang ◽  
Xu-Hong Zhou ◽  
Ran Deng ◽  
Yong-Sen Lan ◽  
...  
Keyword(s):  
Steel Tube ◽  
Confined Concrete ◽  
Ultimate Capacity ◽  
Concrete Filled Steel Tube

Design procedure to bearing concrete failure in concrete-filled steel tube columns with bolted shear connectors

2021 ◽  
Vol 232 ◽  
pp. 111910
Author(s):  
Lucas Ribeiro dos Santos ◽  
Rodrigo Barreto Caldas ◽  
Lucas Figueiredo Grilo ◽  
Hermes Carvalho ◽  
Ricardo Hallal Fakury
Keyword(s):  
Design Procedure ◽  
Steel Tube ◽  
Concrete Filled Steel Tube ◽  
Shear Connectors ◽  
Concrete Failure

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
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