Experimental behaviour of recycled aggregate concrete filled stainless steel tube stub columns and beams

Yang, You-Fu; Ma, Guoliang

doi:10.1016/j.tws.2013.01.017

Cited by 134 publications

(63 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Yang et al (2013) 1.3˜10.5% lower, respectively, compared to normal CFST beams (see Figure 17). Moreover, the load bearing capacity of RACFST beams can be conservatively calculated for normal CFST beams using the existing design codes such as ACI Figure 18.…”

Section: Racfst Beamsmentioning

confidence: 91%

“…In view of the advantages of concrete filled steel tubular columns, recycled aggregate concrete filled steel tube (RACFST), in which the natural aggregates are partly or totally replaced by the recycled aggregates, has been investigated to advance the application of RAC. Many investigators have conducted experimental studies on the mechanical properties of RACFST stub columns by Yang and Ma (2013), Qiu et al (2011), Chen et al (2013cChen et al ( , 2013dChen et al ( , 2014b. The experimental results show that both mechanical properties and deformation abilities of the RACFST stub column with different replacement ratios are significantly improved due to the confinement effect, but are generally similar or slightly inferior to those of corresponding normal CFST ones.…”

Section: Racfst Stub Columnsmentioning

confidence: 99%

“…It concluded that this thin-walled RACFST tube column and normal concrete-filled thin-walled steel tube column have similar deformation and failure patterns, and the replacement ratio of recycled coarse aggregate (RCA) has some effect on the load bearing capacity and deformation (see Figure 1). Yang and Ma (2013) experimentally studied the compressive behaviour of stainless RACFST stub columns with both RCA and recycled fine aggregate (RFA). The results showed that the RACFST stub columns have a stable loading and deformation response and good deformation ability, and the performance of core RAC was generally enhanced due to the confinement of the outer stainless steel tube.…”

Section: Racfst Stub Columnsmentioning

confidence: 99%

“…Moreover, Xiao et al (2014) presented an overview on reviews of the long-term properties of RAC, including long-term strength, shrinkage, creep, carbonation resistance, antifreeze resistance, impermeability, abrasion resistance, alkaline aggregate reactions, sulphate corrosion and fatigue behaviour. In recent years, many investigators have engaged in the study of the performance of composite structures using RAC, such as tubular steel columns and beams filled with RAC (Yang and Ma 2013). It is widely-accepted that RAC-filled tubular steel members have improved mechanical properties, and that RAC infill is confined and protected by the outer steel tube, resulting in an increase in strength and inelastic deformation capacity of RAC.…”

Section: Structural Behaviour Of Composite Members With Recycled Aggrmentioning

confidence: 99%

“…Huang et al (2012) Figure 2. Influence of RCA replacement ratio on compressive capacity of RACFST stub columns (Yang and Ma 2013) RACFST stub columns under axial compression to examine the sensitivity of the confining pressure on the strength and deformation of RAC. It indicated that the assumption of constant confinement or elastoplastic confinement is not .…”

Section: Circular Section Columnsmentioning

confidence: 99%

See 4 more Smart Citations

Structural Behaviour of Composite Members with Recycled Aggregate Concrete — An Overview

Xiao

Shi

et al. 2015

Advances in Structural Engineering

View full text Add to dashboard Cite

A series of investigations on structural behaviour, durability, fire-resistance and seismic performance of composite members with recycled aggregate concrete (RAC) have been carried out in the past 10 years (2005–2014). This paper is consisted of three parts: the first part introduces and discusses the research progress in regard to the structural behaviour of RAC filled steel tubular columns and beams; the second part concentrates on the structural behaviour of steel-reinforced RAC members, including columns, beams, shear walls and slabs; and the third part focuses on the long-term performance of composite members with RAC, involving fire resistance, durability and seismic performance. It seems that RAC composite members with different replacement ratios of recycled coarse aggregate have slightly lower or similar structural behaviour compared to that of normal concrete composite members. Review results reveal that it is feasible to apply steel-RAC composite members as structural applications. This intensive review provides a reasonable knowledge of the structural behaviour of steel-RAC composite members, and recommends further investigations on the failure mechanics and durability of steel-RAC composite members which are needed to promote safe and economic application in the future.

show abstract

Section: Racfst Beamsmentioning

confidence: 91%

Section: Racfst Stub Columnsmentioning

confidence: 99%

Section: Racfst Stub Columnsmentioning

confidence: 99%

Section: Structural Behaviour Of Composite Members With Recycled Aggrmentioning

confidence: 99%

Section: Circular Section Columnsmentioning

confidence: 99%

See 3 more Smart Citations

Structural Behaviour of Composite Members with Recycled Aggregate Concrete — An Overview

Xiao

Shi

et al. 2015

Advances in Structural Engineering

View full text Add to dashboard Cite

show abstract

Axial compression behavior of basalt fiber‐reinforced recycled aggregate concrete‐filled square steel tubular stub column

Zhang

Gao

Ding

et al. 2021

Structural Concrete

View full text Add to dashboard Cite

This study aimed to determine the mechanical properties of the basalt fiber‐reinforced recycled aggregate concrete (BFRRAC)‐filled square steel tubular stub columns under axial compression. The replacement ratio of recycled coarse aggregate, the content of basalt fiber, and the strength grade of the BFRRAC were designed as the variable parameters, seven BFRRAC‐filled square steel tubular stub columns were designed and subjected to axial compression tests. The failure process and morphologies of the specimens were observed, the load–displacement/strain curves were measured, and the influence rule of variable parameters on the axial compression performance indexes, such as peak bearing capacity, energy dissipation capacity, and ductility coefficient, was discussed. Based on the degradation law of combined secant‐stiffness under axial compression, a piecewise mathematical model of stiffness degradation was established. The parametric influence factor was introduced into the design, and the axial compressive stress–strain curve equation was established. Results show that the local bulging failure of all specimens belongs to the category of strength failure. The working process of BFRRAC‐filled square steel tubular stub column under axial compression can be divided into three stages: elastic, elastic–plastic, and plasticity. With the increase in the replacement ratio of recycled coarse aggregate, the peak bearing capacity and ductility of specimens were finally weakened, and the energy dissipation capacity first increased and then decreased. With the increase in BFRRAC strength grade, the peak bearing capacity and energy dissipation capacity of the specimens increased while ductility decreased. The addition of a certain amount of basalt fiber has a little effect on the peak‐bearing capacity of the specimen, but can improve its energy dissipation capacity and ductility.

show abstract

Prediction of the ultimate axial load of circular concrete‐filled stainless steel tubular columns using machine learning approaches

Tran

Ahmed

Gohari

2023

Structural Concrete

View full text Add to dashboard Cite

This paper investigates the accuracy of the existing empirical design models and different machine learning (ML) models, known as Decision Tree (DT), Random Forest (RF), K‐Nearest Neighbors (KNN), Adaptive Boosting (AdaBoost), Gradient Boosting Regression Tree (GBRT), and Extreme Gradient Boosting (XGBoost) in predicting the ultimate axial load of circular concrete‐filled stainless steel tubular (CFSST) columns under axial loading. A test database encompassing the test results of 142 CFSST columns is used to validate the accuracy of the existing empirical design and different ML models. It was demonstrated that all the ML models can provide a better estimation of the ultimate axial load than the existing empirical design models do, in which XGBoost can provide the best estimation of the ultimate axial load of CFSST columns. Finally, a simple equation is proposed based on the XGBoost model for the practical design of CFSST columns.

show abstract

Experimental behaviour of recycled aggregate concrete filled stainless steel tube stub columns and beams

Cited by 134 publications

References 15 publications

Structural Behaviour of Composite Members with Recycled Aggregate Concrete — An Overview

Structural Behaviour of Composite Members with Recycled Aggregate Concrete — An Overview

Axial compression behavior of basalt fiber‐reinforced recycled aggregate concrete‐filled square steel tubular stub column

Prediction of the ultimate axial load of circular concrete‐filled stainless steel tubular columns using machine learning approaches

Contact Info

Product

Resources

About