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Wei Li

Bio: Wei Li is an academic researcher from Tsinghua University. The author has contributed to research in topics: Beam (structure) & Joint (geology). The author has an hindex of 13, co-authored 16 publications receiving 1244 citations.

Papers
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Journal ArticleDOI
TL;DR: In this paper, the development of the family of concrete-filled steel tubular structures to date and drawing a research framework on CFST members is reviewed and discussed, and the current design approaches from various countries are examined briefly.

940 citations

Journal ArticleDOI
TL;DR: In this paper, a new type of composite member, a stainless steel-concrete-carbon steel double-skin tubular (DST) column, is introduced, which combines the advantages of all three types of materials, and has additional advantages of esthetics and resistance to corrosion that outer stainless steel offers.

136 citations

Journal ArticleDOI
Lin-Hai Han1, Wei Li1
TL;DR: In this paper, the authors investigated the seismic behavior of composite joint consisting of circular concrete filled steel tubular (CFST) column and steel beam with reinforced concrete (RC) slab.

118 citations

Journal ArticleDOI
Wei Li1, Lin-Hai Han1
TL;DR: In this article, a finite element analysis (FEA) model for the CFST column to steel beam joint with a reinforced concrete (RC) slab under cyclic loading is presented, which is verified by a set of experimental results presented in the companion paper as well as available test data from other researchers.

95 citations

Journal ArticleDOI
TL;DR: In this article, a finite element analysis (FEA) model was developed to predict the behavior of the tapered CFDST member as well, and the failure mode of the stub column was similar to that of the straight one.
Abstract: Recently, tapered concrete-filled double skin steel tubular (CFDST) columns have been applied in electricity transmission towers in China. However, there is still lack of information on the behaviour of such kind of members. This paper thus carried out the investigation on axially loaded tapered CFDST stub columns. The parameters included the tapered angle and the sectional profile. A finite element analysis (FEA) model was developed to predict the behaviour of the tapered member as well. The results showed that the steel tubes and the sandwiched concrete could work together well despite the tapered angle. The failure mode of the tapered CFDST stub column was similar to that of the straight one, and the failure occurred near the smallest section. The confinement effect of the tapered member was discussed by using the stress analysis. Finally, formulas were suggested for the calculation on the ultimate strength of the tapered CFDST stub column.

93 citations


Cited by
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Journal ArticleDOI
TL;DR: In this paper, the development of the family of concrete-filled steel tubular structures to date and drawing a research framework on CFST members is reviewed and discussed, and the current design approaches from various countries are examined briefly.

940 citations

Journal ArticleDOI
TL;DR: In this article, a finite element (FE) model for CFST stub columns under axial compression is presented. But the model is not suitable to be used in some cases, especially when considering the fast development and utilisation of high-strength concrete and/or thin-walled steel tubes in recent times.

585 citations

Journal ArticleDOI
TL;DR: In this article, a finite element model was used to generate simulation data covering a wide range of parameters for circular and rectangular CFST stub columns under axial compression, and regression analysis was conducted to predict the compressive strength, the compositional stiffness, and compressive strain for the composite columns, and the capacity reduction factors for the steel and concrete materials were recalibrated to achieve a target reliability index of 3.04 when considering resistance effect only.

184 citations

Journal ArticleDOI
TL;DR: A global and extensive review is made here to provide an overall view of concrete sustainability in all possible paths and to open the minds of the readers to the vastly unexplored world of “green concrete”.

175 citations

Journal ArticleDOI
TL;DR: In this article, the authors present an experimental investigation on mechanical and associated properties of seawater and sea sand concrete (SWSSC) filled glass fibre reinforced polymer (GFRP) and stainless steel (SS) circular tubes.
Abstract: This paper presents an experimental investigation on mechanical and associated properties of seawater and sea sand concrete (SWSSC) filled glass fibre reinforced polymer (GFRP) and stainless steel (SS) circular tubes. A proper SWSSC mix was developed to achieve the target strength and desirable workability. A total of 24 stub columns, including hollow sections and SWSSC fully filled tubes or double-skin tubes, were tested under axial compression with the load applied to concrete and tubes simultaneously. The stress-strain curves of the core concrete indicate that concrete strength and ductility is enhanced due to the confinement effect. Discussion focuses on the influence of tube diameter-to-thickness ratio, outer tube types and inner tube types on concrete confinement. Capacity formulae are proposed to estimate the load carrying capacity of SWSSC fully filled SS or GFRP tubes, and that of double skin tubes with four combinations of inner and outer tubes, i.e. SS and SS, SS and GFRP, GFRP and GFRP and GFRP and SS.

166 citations