Numerical and experimental study on seismic behavior of concrete-filled T-section steel tubular columns and steel beam planar frames

Zhang, Jicheng; Huang, Yongshui; Chen, Yu; Du, Guanglong; Zhou, Ling-jiao

doi:10.1007/s11771-018-3868-7

Cited by 8 publications

(9 citation statements)

References 13 publications

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“…Among them, the steel-concrete composite frame is currently a widespread structural system in multistory and high-rise buildings since it combines the advantages of both steel and concrete frames, thus leading to, in many cases, a reduction of costs and optimization of the structural performance [16,17]. The mechanical behavior of composite frame systems including experimental and theoretical research, has been reported in detail over the last few decades [18][19][20][21], and previous research, has demonstrated that the presence of reinforced concrete (RC) slabs is beneficial to the flexural capacity, stiffness and lateral stability of steel beams, which also improves the seismic performance of the frame [22,23].…”

Section: Introductionmentioning

confidence: 99%

Research on Application of Uplift-Restricted Slip-Permitted (URSP) Connectors in Steel-Concrete Composite Frames

et al. 2019

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Tensile stresses and cracks in concrete slabs induced by a hogging moment have always been a disadvantage of steel-concrete composite structures and key issue of concern in the design of such structures. To reduce the tensile stress and control the crack width of the reinforced concrete (RC) slab, a new type of connector, called the uplift-restricted and slip-permitted (URSP) connector has been proposed and successfully applied in the area subjected to a negative bending moment in steel-concrete composite bridges. The feasibility of the URSP connector in steel-concrete composite frame buildings is investigated in this study based on a comprehensive parametric analysis. The effects of URSP connectors on the cracking behavior, as well as the stiffness and strength of composite frames, are systematically analyzed using an elaborate finite element model, which resembles a typical composite beam-column joint subjected to both lateral loads and vertical loads. In addition, an optimized arrangement length of URSP connectors is proposed for practical design. The research findings indicate that the application of URSP connectors greatly improves the crack resistance of RC slabs without an obvious reduction of the ultimate capacity and lateral stiffness of the composite frame. It is recommended that the distribution length of URSP connectors at each beam end should be 20–25% of the frame beam length.

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Section: Introductionmentioning

confidence: 99%

Research on Application of Uplift-Restricted Slip-Permitted (URSP) Connectors in Steel-Concrete Composite Frames

et al. 2019

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“…A series of tests on composite frames with steel beam to CFST columns were conducted by the authors [59] and the test results were used to verify the FEA model that is presented in the paper.…”

Section: Frame Testsmentioning

confidence: 99%

“…It is very complicated to define the interface and contact model in simulation. In the study of seismic problems, the nodes and bottoms of column of spatial frame structure with special-shaped concrete-filled steel tubular columns are weak parts and they are more susceptible to damage.The experimental investigation of seismic behavior of composite spatial frames with steel beams connecting to L-shaped CFST columns were conducted in the previous study by authors [59]. This study aims at extending the understanding of seismic damage of those composite structures by using nonlinear finite element analysis.…”

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confidence: 99%

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Seismic Damage Investigation of Spatial Frames with Steel Beams Connected to L-Shaped Concrete-Filled Steel Tubular (CFST) Columns

Zhang

Zheng

et al. 2018

Applied Sciences

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Currently, the frame structures with special-shaped concrete-filled steel tubular columns have been widely used in super high-rise buildings. Those structural members can be used to improve architectural space. To investigate the seismic behavior of spatial composite frames that were constructed by connecting steel beams to L-shaped concrete-filled steel tubular (CFST) columns, a finite element analysis (FEA) model using commercial finite element software ABAQUS was proposed to simulate the behavior of the composite spatial frames under a static axial load on columns and a fully-reversed lateral cyclic load applied to frames in this paper. Several nonlinear factors, including geometry and material properties, were taken into account in this FEA model. Four spatial specimens were designed, and the corresponding experiments were conducted to verify the proposed FEA model. Each testing specimen was two-story structure consisting of eight single span steel beams and four L-shaped CFST columns. The test results showed that the proposed FEA model in this paper could evaluate the behavior of the composite spatial frames accurately. Based on the results of the nonlinear analysis, the stress developing progress of columns is investigated. The load transferring mechanism and failure mechanism are also determined. The results are discussed and conclusions about the behavior of those spatial frame structures are presented. the literatures. Herrera et al. [25] used the finite element analysis program, named as DRAIN-2DX, to establish a full-scale model of a four-story and five-bay frame made of wide flange H-shaped beams connecting to square CFST columns. Dasgupta et al. [26] carried out the test for a three-story and three-bay planar frame with CFST column connecting to steel beam. Liu and Li [27] conducted a test to demonstrate that the yield load, ultimate load-carrying capacity, and ductility of the frame that was filled with masonry wall were greatly improved, as compared to those in the pure frame structure. Han [28] built a finite element analysis (FEA) to study the behavior of the composite frame, and the results obtained from the FEA model were validated against the test results. Li et al. [29] investigated the seismic performance of CFST frame structure under the constant axial load and cyclic horizontal load. Wang et al. [30] analyzed the mechanism of composite frames with steel beams connecting to concrete-filled square steel tubular columns by using FEA modeling and proposed the simplified hysteretic lateral load-displacement models. Wang et al. [31] established the nonlinear finite element model of squared CFST frame to study the influence of the slenderness ratio. Hu et al. [32] and Park et al.[33] developed a design methodology for moment resisting frame structures with tubular CFST columns and conducted a nonlinear pushover analysis on the numerical frame models. Wang [34,35] conducted an experimental study and nonlinear finite element analysis to study the seismic behavior of concrete-filled square steel tu...

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“…In recent years, several groups of researchers (Shen et al [10]; Zuo et al [11]; Zhang et al [12]; Wang and Lv [13]) investigated the static and seismic behavior of L-shaped/T-shaped concrete-filled tube columns, including the local stability of the L-shaped/T-shaped tube, and the strengthening effect of penetrating binding bolts. Zuo et al [11] computed the 3D strength of L-shaped CFT with equal legs and one thickness of the tube wall.…”

Section: Introductionmentioning

confidence: 99%

Interaction Curves for Concrete-Filled L-Shaped Multi-Celled Steel Tube Sections Under Combined Biaxial Bending and Axial Force

2019

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Ultimate yield surfaces of concrete-filled L-shaped multi-celled steel tube column (L-CFT) under biaxial bending and axial force are studied in this paper. The characteristics of the axial force-bending moment interaction curves under uniaxial bending is first revealed, while the rotational symmetry of the overall interaction curve is verified mathematically. Based on the relative positions of the elastic centroid axis and the plastic neutral axis under pure bending, six cases are identified whose interaction curves show slightly different features. The interaction curves between axial force and bending moments are grouped into two categories. Finally, the interaction surfaces of L-CFT under biaxial bending and axial force are analyzed. The characteristics of these curves are discussed and verified mathematically, and further the approximate formulas for design purpose are provided. Based on the comparative study of a large number of examples, the proposed formulas show good accuracy and are on the conservative side.

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Numerical and experimental study on seismic behavior of concrete-filled T-section steel tubular columns and steel beam planar frames

Cited by 8 publications

References 13 publications

Research on Application of Uplift-Restricted Slip-Permitted (URSP) Connectors in Steel-Concrete Composite Frames

Research on Application of Uplift-Restricted Slip-Permitted (URSP) Connectors in Steel-Concrete Composite Frames

Seismic Damage Investigation of Spatial Frames with Steel Beams Connected to L-Shaped Concrete-Filled Steel Tubular (CFST) Columns

Interaction Curves for Concrete-Filled L-Shaped Multi-Celled Steel Tube Sections Under Combined Biaxial Bending and Axial Force

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