Behaviour of recycled aggregate concrete-filled stainless steel tubular columns subjected to lateral monotonic and cyclic loading

Xu，Chuan Yang1; Han，Lin Hai1; Hou，Chao2

2023-10-15

10.1016/j.engstruct.2023.116663

Engineering Structures   Impact Factor & Quartile

0141-0296

1873-7323

This paper presents a series of experimental research on recycled aggregate concrete-filled stainless steel tubular (RAC-FSST) columns subjected to lateral monotonic and cyclic loading. The influence of axial load level, shear span ratio, and replacement ratio of recycled coarse aggregate on the RAC-FSST members under compression-bending loads is studied. The test results indicate that the RAC-FSST columns exhibit favorable ductility and energy dissipation capacity. The P-Δ skeleton curves of the columns subjected to lateral cyclic loading are similar to those of columns under monotonic loading. It indicates that, compared with the plastic damage of the concrete, the cyclic hardening characteristics of the stainless steel have more significant influence on the bearing capacity. Considering the characteristics of material loading and unloading criteria, a FE model is established to analyze the seismic performance of RAC-FSST, with the internal force development and stress distribution discussed. Based on the parametric analysis, the modification method of bearing capacity and the hysteretic models of RAC-FSST members are proposed.

Bending behaviour Concrete-filled stainless steel tube (CFSST) Design calculations Hysteretic behaviour Recycled aggregate concrete (RAC)

SCI

English

Others

National Natural Science Foundation of China (NSFC)[51838008]

Engineering

Engineering, Civil

WOS:001051078200001

ELSEVIER SCI LTD

ENGINEERING

2-s2.0-85166276853

Scopus

1.Department of Civil Engineering,Tsinghua University,Beijing,100084,China
2.Department of Ocean Science and Engineering,Southern University of Science and Technology,Shenzhen,518055,China

Xu，Chuan Yang,Han，Lin Hai,Hou，Chao. Behaviour of recycled aggregate concrete-filled stainless steel tubular columns subjected to lateral monotonic and cyclic loading[J]. Engineering Structures,2023,293.

Xu，Chuan Yang,Han，Lin Hai,&Hou，Chao.(2023).Behaviour of recycled aggregate concrete-filled stainless steel tubular columns subjected to lateral monotonic and cyclic loading.Engineering Structures,293.

Xu，Chuan Yang,et al."Behaviour of recycled aggregate concrete-filled stainless steel tubular columns subjected to lateral monotonic and cyclic loading".Engineering Structures 293(2023).