Seismic behavior of composite columns with steel reinforced ECC permanent formwork and infilled concrete

2020 ◽  
Vol 212 ◽  
pp. 110541 ◽  
Author(s):  
Zuanfeng Pan ◽  
Yazhi Zhu ◽  
Zhi Qiao ◽  
Shaoping Meng
Keyword(s):  
Seismic Behavior ◽  
Composite Columns ◽  
Permanent Formwork

scholarly journals Seismic Behavior of Hybrid Frame Joints between Composite Columns and Steel Beams

2020 ◽  
Vol 2020 ◽  
pp. 1-16
Author(s):  
Liusheng Chu ◽  
Qingze Li ◽  
Jun Zhao ◽  
Danda Li
Keyword(s):  
Crack Resistance ◽  
Seismic Behavior ◽  
Shear Failure ◽  
Numerical Study ◽  
Concrete Strength ◽  
Shear Resistance ◽  
Hysteretic Behavior ◽  
Cyclic Behavior ◽  
Shear Reinforcement ◽  
Composite Columns

This study presents experimental and numerical study on cyclic behavior of SRC composite columns-steel beam joints. The pseudostatic experiments were carried out on four samples with different axial loads. X-shaped shear reinforcement was added in the sample no. 4 in order to investigate its effect on the crack resistance in the joint core area. Low-frequency cyclic load was applied at beam ends to simulate the earthquake action. The failure characteristics, hysteretic behavior, stiffness degradation, shear resistance, and displacement ductility were investigated. Experimental results indicated that the failure mode of the joints was mainly shear failure, and the composite joints showed excellent seismic behavior with higher capacity and good ductility and energy dissipation ability. X-shaped shear reinforcement performed well to increase the concrete crack resistance. Shear forces from both experimental test and theoretical analysis were compared, and suggestions were given on modification of theoretical formulas. Simulation using the ABAQUS model showed good results that agreed well with the test results. Steel stress distribution and damage development were analyzed in the model. More parameters of web thickness, stiffener thickness, concrete strength, and stirrups and their influence on shear resistance were studied.

Experimental Study on Seismic Behavior of Full Encased Steel-Concrete Composite Columns

2014 ◽  
Vol 140 (6) ◽  
pp. 04014024 ◽  
Author(s):  
Caihua Chen ◽  
Cuikun Wang ◽  
Huizhong Sun
Keyword(s):  
Experimental Study ◽  
Seismic Behavior ◽  
Composite Columns

Experimental Study on the Seismic Behavior of SRHSC Columns

2011 ◽  
Vol 243-249 ◽  
pp. 366-369 ◽  
Author(s):  
Shan Suo Zheng ◽  
Qing Lin Tao ◽  
Yi Hu ◽  
Lei Li ◽  
Zhi Qiang Li
Keyword(s):  
High Strength Concrete ◽  
Seismic Behavior ◽  
Concrete Strength ◽  
High Strength ◽  
Relationship Strength ◽  
Composite Columns ◽  
Axial Compression Ratio ◽  
Energy Dissipation Capacity ◽  
Strength And Stiffness ◽  
Ductility Capacity

Based on the experiments of 4 SRHSC (steel reinforced high strength concrete) column specimens, which were different in concrete strength, axial compression ratio and spacing of hoop reinforcement, this paper investigates the seismic behavior and flexural strength of SRHSC columns under cyclic lateral loading which is controlled by the displacement. According to the date and phenomenon of experiment, adopting existed theory and foreign codes for composite columns, the failure mode, lateral load-deflection relationship, strength and stiffness deterioration, ductility capacity and energy dissipation capacity of SRHSC columns is analyzed.

Seismic Behavior of Partially Encased Concrete Composite Columns

2015 ◽  
Vol 777 ◽  
pp. 190-193 ◽  
Author(s):  
Gen Tian Zhao ◽  
Qiu Wen Hu
Keyword(s):  
Experimental Study ◽  
Axial Compression ◽  
Compression Ratio ◽  
Seismic Behavior ◽  
Test Results ◽  
Composite Columns ◽  
Steel Ratio ◽  
Axial Compression Ratio ◽  
Deformation Ability ◽  
Low Cyclic Loading

In order to learn seismic behavior of partially encased concrete composite columns, experimental study on five H steel partially encased concrete composite columns was carried out under low cyclic loading. The main parameters were the axial compression ratio, steel ratio, shear span ratio. The test results show that deformation ability decreases as axial compression ratio increases; and as steel ratio increases, horizontal bearing capacity and deformation ability increases.

scholarly journals Non-linear study of base shear and moment of composite columns in MRFs

2015 ◽  
Vol 4 (1) ◽  
pp. 205
Author(s):  
Amir Parviz Khosravi Amiri
Keyword(s):  
Composite Structures ◽  
Seismic Behavior ◽  
Analytical Modeling ◽  
Lateral Force ◽  
Seismic Loads ◽  
Base Shear ◽  
Composite Columns ◽  
Non Linear ◽  
Steel Sections ◽  
Linear State

The main objective of this study is evaluating the seismic behavior of composite columns in MRFs subject to dynamic loads.The design Codes of composite structures contain different views in some cases and therefore conservative provisions, because of lack of enough information about the behavior of these structures. The base shear and moment of structures in non-linear state can be considered as criteria for the potential of a lateral-force-resisting system to dissipate the seismic energy.Lower values of non-linear seismic base reactions indicate better efficacy of the system. In this study the performance of the MRFs with composite columns has been evaluated using 8-story structural models, considering the base reactions obtained from the non-linear analysis. Analytical modeling has been performed based on the AISC Code. The results show good performance of composite sections under the seismic loads. Also, a comparison between two types of composite sections, the full and half-embedded steel sections in concrete, has been made.

Seismic behavior and strength capacity of steel tube-reinforced concrete composite columns

2013 ◽  
Vol 43 (4) ◽  
pp. 487-505 ◽  
Author(s):  
Xiaodong Ji ◽  
Hongzhen Kang ◽  
Xingchen Chen ◽  
Jiaru Qian
Keyword(s):  
Reinforced Concrete ◽  
Seismic Behavior ◽  
Steel Tube ◽  
Composite Columns ◽  
Strength Capacity

Dynamic analysis of composite columns in Inelastic state

2013 ◽  
Vol 2 (3) ◽  
pp. 209
Author(s):  
Mohsen Rezaie Hajidehi ◽  
Abolfazl Darvizeh ◽  
Malek Mohammad Ranjbar
Keyword(s):  
Dynamic Analysis ◽  
Seismic Behavior ◽  
Poor Performance ◽  
Flexural Behavior ◽  
Composite Columns ◽  
Concrete Type ◽  
Steel Sections ◽  
Type 3

The main objective of this study is analyzing Seismic behavior of composite columns in frame in inelastic state under dynamic load. Therefore, three type of composite column have been used in this paper. IPB Steel section embedded in concrete (type 1), Concrete-filled thin-walled steel sections (type 2), half concreted IPB sections (type 3) which are designed for 3 and 8 floor frame tenement in plastic way. Three earthquake accelerogram have been used for analyzing model seismic behavior and model analysis has been done in non-linear dynamic analysis with Seismostruct application. The results demonstrated that frame designed by composite columns type 1 and 3 in the flexural behavior, have similar construction behavior in the way that plasticity, softness and good function to dispose lateral forces are the same. Although Type 2 composite model have large sections, have poor performance in tolerating flexural moment. This event refers to poor role of concrete in tension. On the other hand, the amount of concrete is important in Withstand compressive forces and in constructions with high compressive forces, type 1 and 2 have better performance.

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