Seismic Behavior of Recycled Aggregate Concrete Filled Steel and Glass Fiber Reinforced Plastic Tube Columns

Xiao, Jianzhuang; Huang, Yijie; Sun, Zhihui

doi:10.1260/1369-4332.17.5.693

Cited by 44 publications

(10 citation statements)

References 20 publications

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“…At present, the seismic behavior of the C-RACFST structure mainly focused on the component level and based on experimental research. Xiao et al conducted the seismic behavior test of six C-RACFST columns and found the excellent deformation and bearing capacity of the C-RACFST column [12]. Taking the replacement ratio of waste concrete blocks and steel tube thickness as parameters, Wu et al studied the seismic behavior of thin-walled steel tube columns filled with waste-concrete blocks or freshconcrete blocks.…”

Section: State Of the Artmentioning

confidence: 99%

Seismic Behavior Analysis of Recycled Aggregate Concrete-filled Steel Tube Column

Zhang¹,

Wang²,

Gao³

2019

JESTR

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To investigate the seismic behavior of recycled aggregate concrete-filled circular steel tube (C-RACFST), twenty-three full-scale specimens were tested by changing the design parameters. Seismic behavior indices, such as hysteresis curve, skeleton curve, ductility coefficient, and energy dissipation capacity were analyzed and the influence rules of design parameters on seismic behavior index were revealed. Results show that it is feasible to apply C-RACFST to the actual load-bearing structure based on the seismic behavior index requirements. With the increase of the steel ratio, the hysteresis curve become plumper, and the peak-bearing capacity and displacement ductility coefficient increase. With the increase of the axial compression ratio, the peak-bearing capacity and ductility decrease and the energy dissipation coefficient of each specimen increases gradually under the same cycle displacement. The conclusions obtained in the study are of reference value to direct the similar engineering.

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Section: State Of the Artmentioning

confidence: 99%

Seismic Behavior Analysis of Recycled Aggregate Concrete-filled Steel Tube Column

Zhang¹,

Wang²,

Gao³

2019

JESTR

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“…0D. The test set-ups are described in detail by ), Yu (2012 and Xiao et al (2014). It was found from the tests that r c and n 0 had similar effects on the failure patterns and hysteretic responses of RACFST columns as CFST counterparts.…”

Section: Summary Of Experimental Research Outcomesmentioning

confidence: 99%

“…Over the past 17 years, a number of works have reported on the performance of recycled aggregate concrete-filled steel tube (RACFST) members (e.g. Konno et al, 1997Konno et al, , 1998Mohanraj et al, 2011;Tam et al, 2014;Xiao et al, 2014;Yang andHan, 2006a, 2006b;Yang and Hou, 2012;Yang and Ma, 2013;Yang et al, 2008). The results of these studies verified that the failure modes of the steel tubes and concrete cores and the bond performance between the steel tubes and the core concrete of RACFST members were similar to those of CFSTs.…”

Section: Introductionmentioning

confidence: 99%

Behaviour and design calculations of recycled aggregate concrete-filled steel tube (RACFST) members

Yang

Hou

2015

Magazine of Concrete Research

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This paper describes research work on the performance and design calculations of recycled aggregate concrete filled steel tube (RACFST) members, especially the most recent developments in China. Firstly, experimental studies on RACFST members subjected to short-term static loading, long-term sustained loading and cyclic flexural loading are summarised and analysed, and recent advances in the behaviour of RACFST stub columns after exposure to high temperatures (300-8008C) are also reviewed. The experimental results show that, in general, RACFST members have similar performance to concrete filled steel tube (CFST) members when subjected to the same loading conditions. However, due to the more serious inherent defects of recycled aggregate concrete compared with normal concrete, RACFST members have a lower bearing capacity and stiffness than their CFST counterparts. Secondly, design formulae for RACFST members are suggested and the calculated bearing capacities using the simplified equations generally agree well with the experimental results. Finally, the potential research needs of RACFST structures are discussed. NotationA c cross-sectional area of concrete A s cross-sectional area of steel A sc cross-sectional area of RACFST column D outside diameter of circular steel tube or width of square steel tube e load eccentricity f ck,r characteristic compressive strength of recycled aggregate concrete (RAC) f cu,r cube compressive strength of RAC f scy,r strength factor f y yield strength of steel k T strength reduction factor considering the effect of maximum temperature L effective buckling length of member in the plane of bending M moment M u flexural capacity of RACFST beam M uc calculated flexural capacity of RACFST beam M ue experimental flexural capacity of RACFST beam N axial compressive load N 0 cross-sectional strength N E Euler critical force N u bearing capacity of RACFST column under concentric compression N uc calculated bearing capacity N ue experimental bearing capacity N ue,cfst bearing capacity of CFST specimens N ue,racfst bearing capacity of RACFST specimens N ue,w bearing capacity of specimens with long-term sustained loading N ue,wo bearing capacity of specimens without long-term sustained loading N u,T strength of RACFST stub columns after exposure to high temperature n long-term sustained load ratio n 0 axial compressive load ratio r unified recycled aggregate replacement ratio r c recycled coarse aggregate replacement ratio r f recycled fine aggregate replacement ratio T m maximum temperature t wall thickness of steel tube W sc section modulus of RACFST member AE steel ratio ª m flexural capacity factor ç 0 intermediate variable º slenderness ratio º o slenderness ratio limit for elastic-plastic buckling of RACFST member under concentric compression º p slenderness ratio limit for elastic buckling of RACFST member under concentric compression î r confinement factor r 0 intermediate variable ö stability factor 611

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“…e RACFST structure will be feasible [26,27], for example, in high-rise and super-tall buildings in the seismic fortification area, on the treatment of postearthquake construction waste and the reconstruction of buildings.…”

Section: Introductionmentioning

confidence: 99%

Seismic Strength and Stiffness for Recycled Aggregate Concrete‐Filled Steel Tube Frame

Zhang

Yang

Zhang

et al. 2019

Advances in Civil Engineering

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To study the seismic strength and stiffness for recycled aggregate concrete-filled steel tube (RACFST) frame, two-frame specimens made up of RACFST column and reinforced recycled aggregate concrete (RAC) beam were used for a seismic test under reversed low-cycle loading. The failure mechanism, hysteresis curve, strength attenuation, and stiffness degradation were determined for the specimens. The design methods for the story shear bearing capacity and stiffness for the single-layer single-span RACFST frame were discussed. It is shown that the seismic design requirements including “strong column weak beam” and “strong shear weak bending” can be met. The hysteresis curves are symmetric and the strength attenuation and rigidity degeneration change significantly, then change a little, and then significantly again under the same displacement. It is possible that the methods including elastic bending moment at the column end, plastic hinge at the column end, and plastic hinge at the column bottom can all be applied to the design calculation of the story shear bearing capacity for the single-layer single-span RACFST frame. The method adopted in this paper can be used to estimate the original elastic layer stiffness of the RACFST frame.

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Seismic Behavior of Recycled Aggregate Concrete Filled Steel and Glass Fiber Reinforced Plastic Tube Columns

Cited by 44 publications

References 20 publications

Seismic Behavior Analysis of Recycled Aggregate Concrete-filled Steel Tube Column

Seismic Behavior Analysis of Recycled Aggregate Concrete-filled Steel Tube Column

Behaviour and design calculations of recycled aggregate concrete-filled steel tube (RACFST) members

Seismic Strength and Stiffness for Recycled Aggregate Concrete‐Filled Steel Tube Frame

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