Experimental study on hysteretic behavior of composite frames with concrete-encased CFST columns

2016 ◽  
Vol 123 ◽  
pp. 110-120 ◽  
Author(s):  
Kun Wang ◽  
Shen-Feng Yuan ◽  
Zai-Xian Chen ◽  
Hai-Xiang Zhi ◽  
Gao-Lin Shi ◽  
...  
Keyword(s):  
Experimental Study ◽  
Hysteretic Behavior ◽  
Composite Frames ◽  
Cfst Columns

Analysis on hysteretic behavior of composite frames with concrete-encased CFST columns

2017 ◽  
Vol 135 ◽  
pp. 176-186 ◽  
Author(s):  
Kun Wang ◽  
Xiao-Feng Lu ◽  
Shen-Feng Yuan ◽  
Da-Fu Cao ◽  
Zai-Xian Chen
Keyword(s):  
Hysteretic Behavior ◽  
Composite Frames ◽  
Cfst Columns

Experimental study on the hysteretic behavior of ECC-encased CFST columns

2018 ◽  
Vol 173 ◽  
pp. 107-121 ◽  
Author(s):  
Jingming Cai ◽  
Jinlong Pan ◽  
Hao Su ◽  
Cong Lu
Keyword(s):  
Experimental Study ◽  
Hysteretic Behavior ◽  
Cfst Columns

Numerical and experimental study of hysteretic behavior of cylindrical friction dampers

2011 ◽  
Vol 33 (12) ◽  
pp. 3647-3656 ◽  
Author(s):  
Masoud Mirtaheri ◽  
Amir Peyman Zandi ◽  
Sahand Sharifi Samadi ◽  
Hamid Rahmani Samani
Keyword(s):  
Experimental Study ◽  
Hysteretic Behavior ◽  
Friction Dampers

scholarly journals Performances of moment resisting frames with slender composite sections in low-to-moderate seismic areas

2018 ◽  
Author(s):  
Hervé Degée ◽  
Yves Duchêne ◽  
Benno Hoffmeister
Keyword(s):  
Numerical Model ◽  
Global Analysis ◽  
Local Buckling ◽  
Experimental Tests ◽  
Hysteretic Behavior ◽  
Moderate Intensity ◽  
Moment Resisting Frames ◽  
Composite Frames ◽  
Moderate Seismicity ◽  
Moment Resisting

The aim of the recently completed European research program Meakado is therefore to study design options with requirements proportioned to the actual seismic context of constructions in areas characterized by a low or moderate seismic hazard, contrary to most researches aiming at maximizing the seismic performances. In this general framework, specific investigations have been carried out regarding typical beam profiles commonly used for multi-bay - multi-storey composite frames. In a first stage, experimental tests on class-3 composite beam-to-column connections were performed. The measurement results were evaluated with regard to the development of the hysteretic behavior with particular emphasis on the degradation. These test results have been used as reference for the calibration and validation of numerical model aiming at extending the scope of the experimental outcomes through appropriate parametric variations regarding the behavior of nodal connections as well as towards the global analysis and behavior of structures made of class 3 and 4 profiles. Numerical investigations of the global performance of composite frames with slender cross-sections are then performed resorting to the numerical model previously calibrated with respect to the experimental tests and additional simulations at node level. Results are compared to the performance of an equivalent frame made of compact steel profiles. Attention is paid to the effects of strength and stiffness degradation due to local buckling. The analysis of the results is specifically focusing on the comparison of the rotation capacity of the slender section with the actual rotation demand imposed by a moderate intensity earthquake. Based on the outcomes of these investigations, practical design recommendations are finally derived for multi-storey, multi-bay moment resisting frames with type b (full composite action) beam-to column connections located in low and moderate seismicity regions. 

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

2018 ◽  
Vol 8 (10) ◽  
pp. 1713 ◽  
Author(s):  
Jicheng Zhang ◽  
Yong Li ◽  
Yu Zheng ◽  
Zhijie Wang
Keyword(s):  
Finite Element ◽  
Frame Structures ◽  
Steel Beams ◽  
Element Analysis ◽  
Testing Specimen ◽  
Tubular Columns ◽  
Finite Element Software ◽  
Fea Model ◽  
Composite Frames ◽  
Cfst Columns

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.

Research on Hysteretic Behavior of the Concrete Filled Square CFRP-Steel Tubular (S-CFRP-CFST) Beam-Columns (I): Experimental Study

2010 ◽  
Vol 163-167 ◽  
pp. 3580-3585
Author(s):  
Yuan Che ◽  
Qing Li Wang ◽  
Yong Bo Shao ◽  
Hai Tao Mu
Keyword(s):  
Experimental Study ◽  
Bearing Capacity ◽  
Local Buckling ◽  
Steel Tube ◽  
Hysteretic Behavior ◽  
Strengthening Effect ◽  
Test Results ◽  
Load Bearing Capacity ◽  
Beam Columns ◽  
Hysteretic Performance

Overall 12 specimens were experimentally investigated in this paper to study the hysteretic behaviors of the concrete-filled square CFRP-steel tubular (S-CFRP-CFST) beam-columns. The test results indicated that CFRP can provide transverse confinement effect and longitudinal strengthening effect for the concrete filled square steel tubular (S-CFST) beam-columns effectively and the local buckling of the steel tube is deferred. The hysteretic load-deflection curves and the hysteretic moment-curvature curves at the mid-span of all the specimens are generally plump, and it shows these specimens have good hysteretic performance. In the later loading period, the load bearing capacity drops.

FRC-Steel Joist Composite Frames for Seismic Resistance

1999 ◽  
Vol 15 (1) ◽  
pp. 87-104
Author(s):  
Madhusudan Khuntia ◽  
Subhash C. Goel
Keyword(s):  
Shear Capacity ◽  
Fiber Reinforced Concrete ◽  
Hysteretic Behavior ◽  
Seismic Resistance ◽  
Shear Connectors ◽  
Weak Beam ◽  
Composite Frames ◽  
Innovative System ◽  
Reversed Cyclic ◽  
Open Web Steel Joist

The research reported in this paper is concerned with development of fiber-reinforced concrete-encased open web steel joist composite frames for seismic resistance. This new and innovative system completely eliminates the need for any shear connectors between steel joists and surrounding concrete as well as that for conventional longitudinal and transverse reinforcement, all of which are quite labor intensive. In the initial phase of the study tests were carried out on half-scale beam specimens subjected to monotonic and reversed cyclic loading. The results showed that the presence of steel fibers as well as the open web steel significantly enhances the shear capacity of the system thus making it very suitable for seismic resistance. In the final phase, a half-scale, one-story, one-bay frame was designed by strong column-weak beam concept. The results showed ductile and stable hysteretic behavior. The study indicates that this type of composite framing system has excellent potential in seismic regions.

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