Finite element analysis on hysteretic behavior of steel staggered Pratt truss structure under cyclic load

2015 ◽  
Author(s):  
Zhe Wang ◽  
Lin Shen ◽  
Ming-Zhou Su
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Cyclic Load ◽  
Hysteretic Behavior ◽  
Truss Structure ◽  
Element Analysis

scholarly journals Experimental Study and Finite Element Analysis of Hysteretic Behavior of End-plate Connection Semi-Rigid Space Steel Frames

2013 ◽  
Vol 7 (1) ◽  
pp. 68-76 ◽  
Author(s):  
Wang Tao ◽  
Wang Zhan ◽  
Wang Junqi
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Cyclic Load ◽  
Failure Modes ◽  
Steel Frames ◽  
Hysteretic Behavior ◽  
Element Analysis ◽  
End Plate ◽  
Stress And Deformation ◽  
Plate Connection

To investigate the seismic behavior of end-plate connection semi-rigid space steel frames, three 1/4-scale specimens were tested under cyclic load. Finite element analysis which took initial geometric imperfections into consideration was also conducted, and the results conform to experimental results. The failure modes, hysteretic behavior, deformation capacity and energy-dissipation capacity of the end-plate connection semi-rigid space steel frame have been explicated in this paper. The investigation in this paper indicates that: (1) the end-plate connection semi-rigid space steel frames exhibit full hysteretic loops under horizontal cyclic load and have good ductility as well, indicating that this kind of frames can satisfy the deformation demand in strong earthquakes. (2) Plastic hinges formed at beam ends, and the stress and deformation amplitudes of joint-panels were smaller than those of column base and beam ends. It shows that this kind of frames satisfy the design principle “strong column weak beam, strong joint weak component”.

scholarly journals A Finite Element Study on Compressive Resistance Degradation of Square and Circular Steel Braces under Axial Cyclic Loading

2021 ◽  
Vol 11 (13) ◽  
pp. 6094
Author(s):  
Hubdar Hussain ◽  
Xiangyu Gao ◽  
Anqi Shi
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Cyclic Loading ◽  
Slenderness Ratio ◽  
Hysteretic Behavior ◽  
Element Analysis ◽  
Section Shape ◽  
Axial Cyclic Loading ◽  
Global Buckling ◽  
Parametric Studies

In this study, detailed finite element analysis was conducted to examine the seismic performance of square and circular hollow steel braces under axial cyclic loading. Finite element models of braces were constructed using ABAQUS finite element analysis (FEA) software and validated with experimental results from previous papers to expand the specimen’s matrix. The influences of cross-section shape, slenderness ratio, and width/diameter-to-thickness ratio on hysteretic behavior and compressive-tensile strength degradation were studied. Simulation results of parametric studies show that both square and circular hollow braces have a better cyclic performance with smaller slenderness and width/diameter-to-thickness ratios, and their compressive-tensile resistances ratio significantly decreases from cycle to cycle after the occurrence of the global buckling of braces.

scholarly journals Design Method and Finite Element Analysis of a New Prefabricated Steel Special-shaped Lattice Column

2020 ◽  
Vol 198 ◽  
pp. 03012
Author(s):  
Zhenghui Qi ◽  
Xiaotong Peng ◽  
Jie Man ◽  
Chen Lin ◽  
Wenxu Duan
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Cross Section ◽  
Seismic Behavior ◽  
Design Method ◽  
Steel Structure ◽  
Hysteretic Behavior ◽  
Structural Performance ◽  
Finite Element Models ◽  
Element Analysis

A new steel special-shaped lattice column (SSLC) was proposed, which can be used in prefabricated steel structure residence. The finite element models of four SSLC with different cross-section (L-shaped, T1-shaped, T2-shaped and X-shaped) were established under cyclic loading by using ABAQUS, in which the strength, lateral resist capacity and hysteretic behavior were analyzed. The results indicate that SSLC has adequate strength, stiffness and safety redundancy. Among the four SSLC, the SSLC with X-shaped has the best structural performance and seismic behavior.

Experimental Study on Hysteretic Performance of Steel Frame with Improved Node

2013 ◽  
Vol 405-408 ◽  
pp. 1148-1152
Author(s):  
Song Sen Yang ◽  
Yan Wang
Keyword(s):  
Finite Element Analysis ◽  
Experimental Study ◽  
Finite Element ◽  
Cyclic Load ◽  
Plastic Hinge ◽  
Steel Frame ◽  
Element Analysis ◽  
Welding Seam ◽  
Hysteretic Performance ◽  
Research Show

Using the test and finite element analysis methods study the load-displacement hysteretic performance of the widened beam flange connections steel frame under the low cyclic load. Results of the research show that under the low cyclic load, the plastic hinge of steel frame with widen beam flange connections can be moved out of the beam-column connection welding. And the centers of plastic hinge locate out of widened arc part, achieving the ductile design goals that avoid the brittle break near the welding seam at the end of the beam. The bearing capacity of the steel frame with widen beam flange connections has been improved, but the stiffness of the column web domain is relatively lower. So construction measures should be taken to reinforcing the column web domain.

Finite Element Analysis on Hysteretic Behavior of Aluminium Columns under Cyclic Loading

2014 ◽  
Vol 1049-1050 ◽  
pp. 264-267
Author(s):  
Zheng Zhang ◽  
Yong Qian Zheng ◽  
Xue Chao Chen ◽  
Zhi Bin Wang
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Cyclic Loading ◽  
Geometrical Nonlinearity ◽  
Initial Imperfection ◽  
Hysteretic Behavior ◽  
Constitutive Relationship ◽  
Low Carbon ◽  
Element Analysis ◽  
Steel Columns

The mechanical properties of axial compression aluminium members under cyclic loading were studied and compared with those of steel columns. In order to proceed to theoretical study on hysteretic behavior of aluminium columns, a method by finite element analysis was proposed. The method was based on FEA software, ANSYS. The analysis methods considered the effects of material nonlinearity, geometrical nonlinearity and initial imperfection. On this basis, hysteretic curves, reversal skeleton curves and stiffness degradation curves of 6061-T6 aluminium columns, 6061-T4 aluminium columns and Q235 steel columns under axial cyclic loading were obtained and compared. Results show that the hysteretic behavior of the aluminium columns is similar with the low carbon steel columns and is significantly influenced by constitutive relationship.

Comparative Analysis on Seismic Performance of Steel Frame with Different Forms of Symmetric Enhanced Nodes

2013 ◽  
Vol 790 ◽  
pp. 247-251
Author(s):  
Li Ting Dong ◽  
Yan Wang
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Comparative Analysis ◽  
Energy Dissipation ◽  
Seismic Performance ◽  
Failure Modes ◽  
Hysteretic Behavior ◽  
Structural Form ◽  
Element Analysis ◽  
Energy Dissipation Capacity

Based on node test and finite element analysis results of four different structural form enhanced nodes,failure modes,hysteretic behavior,bearing capacity,ductility and energy dissipation capacity of nodes are analyzed comprehensively and comparatively for more in-depth exploration about the seismic performance of symmetric enhanced nodes.The results showed that all the symmetric enhanced nodes have full hysteretic curve and energy dissipation capacity. On the whole,The flange-plate reinforced node exhibit better seismic performance.

scholarly journals Design and Research of Off-Axis Three-Mirror Space Remote Sensor Structure

2015 ◽  
Vol 9 (1) ◽  
pp. 744-751 ◽  
Author(s):  
Wang Kejun ◽  
Xuan Ming ◽  
Dong Jihong ◽  
Chi Chunyan ◽  
Zhang Huanhuan
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Optical System ◽  
Truss Structure ◽  
Shape Error ◽  
Support Structure ◽  
Element Analysis ◽  
Remote Sensor ◽  
Sensor Structure ◽  
The Finite Element Analysis

On the basis of characteristics of optical system of three-mirror off-axis, with the method of topology optimization, the mirrors’ support structure and the frame structure which is a truss structure of the optical system were designed and investigated, the lightweight of the support structure and the truss structure are important, the structure optimization design of the system was completed, which quality is very light, by means of the finite element analysis techniques, we know that the shape error variation RMS and PV of optical mirror which are important indexes of image quality. The modal analysis and dynamic simulation calculation were carried out and the response character of the structure under dynamic environment was solved. Finally, the correctness of the finite element analysis results and the rationality of the design are validated by environmental testing. the analysis and test results indicate that the PV and RMS meet the design indexunder the comprehensive influence of gravity and thermal load which is in the control range, the overall structure have a high enough dynamic stiffness and reasonable distribution of modal, and the dynamic response of Space Remote Sensor was within the allowable range, which meet the use requirement.

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