Experiment Research on Earthquake Resistance Performance of T-shaped Concrete-filled Rectangular Composite Steel Tubular Columns

2012 ◽  
Author(s):  
Huang Jun ◽  
Dai Shao-Bin ◽  
Liu Ji-Xiong
Keyword(s):  
Earthquake Resistance ◽  
Experiment Research ◽  
Tubular Columns ◽  
Resistance Performance ◽  
Composite Steel

Finite Element Analysis of Earthquake Resistance Behaviors of T-Shaped Concrete-Filled Rectangular Composite Steel Tubular Columns

2014 ◽  
Vol 501-504 ◽  
pp. 1633-1638
Author(s):  
Jun Huang ◽  
Yi Chao Zhang ◽  
Shao Bin Dai
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Bearing Capacity ◽  
Fem Analysis ◽  
Nonlinear Finite Element ◽  
Earthquake Resistance ◽  
Element Analysis ◽  
Tubular Columns ◽  
Finite Element Software ◽  
Composite Steel

By using finite element software ABAQUS, the nonlinear finite element analysis of earthquake resistance behavior of T-shaped concrete-filled rectangular composite steel tubular columns is carried out, furthermore, the analysis results and the corresponding experiment results are compared. The results indicate that the calculated value of ultimate bearing capacity is less than the experimental value, and the results of FEM analysis can match the experiment results better, and thus, it can better reflect the earthquake resistance behaviors of the specimens.

Finite Element Analysis of Earthquake Resistance Behaviors in L-Shaped Concrete-Filled Rectangular Composite Steel Tubular Columns

2011 ◽  
Vol 368-373 ◽  
pp. 441-447
Author(s):  
Jun Huang ◽  
Shao Bin Dai ◽  
Ji Xiong Liu
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Bearing Capacity ◽  
Fem Analysis ◽  
Ultimate Bearing Capacity ◽  
Earthquake Resistance ◽  
Element Analysis ◽  
Tubular Columns ◽  
Finite Element Software ◽  
Composite Steel

By using finite element software ABAQUS, the nonlinear finite element analysis of earthquake resistance behavior of L-shaped concrete-filled rectangular composite steel tubular columns is carried out, furthermore, the analysis results and the corresponding experimental results are compared. The results indicate that the finite element calculated value of ultimate bearing capacity is less than experimental value; axial compression ratio of the specimen has little affect on its ultimate bearing capacity and earthquake resistance behaviors; the results of FEM analysis can match the experiment results better, and thus, it can better reflect the earthquake resistance behaviors of the specimens.

Seismic Damage Analysis of RCC Gravity Dams Using 3D Nonlinear FEM

2011 ◽  
Vol 120 ◽  
pp. 397-402
Author(s):  
Ze Li ◽  
Li Xiang Zhang
Keyword(s):  
Finite Element ◽  
Seismic Response ◽  
Element Model ◽  
Gravity Dam ◽  
Earthquake Resistance ◽  
Nonlinear Fem ◽  
Dam Foundation ◽  
Important Indicator ◽  
Damage Area ◽  
Resistance Performance

The earthquake-resistance performance of gravity dam is an important indicator of dam safety. The earthquake-resistance performance of non-overflow monolith for Guanyinyan gravity dam is evaluated in this paper. First of all, the three-dimensional finite element model of dam is established by ABAQUS software. And then, the seismic response of gravity dam is analyzed by nonlinear finite element method, while the concrete damage plasticity constitutive model is adopted to describe the tensile characteristic of concrete. The seismic response and the damage evolution of dam are obtained. The results show that the dam has formed a crack-like band damage area at the end of earthquake, which are located in the dam along the dam-foundation boundary near the upstream face. At last, according to the results of simulation, the safety and the damage range are investigated.

Numerical Simulation of Fire Resistance Performance for Planar Frame with Concrete Filled Steel Tubular Columns and Steel Beams

2011 ◽  
Vol 94-96 ◽  
pp. 755-758
Author(s):  
Yan Yin ◽  
Tang Li
Keyword(s):  
Fire Resistance ◽  
Limit State ◽  
Plastic Hinge ◽  
Local Buckling ◽  
Horizontal Displacement ◽  
Steel Beams ◽  
Bottom Flange ◽  
Tubular Columns ◽  
Fire Endurance ◽  
Resistance Performance

In this paper, the fire resistance performance of the unprotected two-layer and two-cross planar frame, which is composed of concrete filled steel tubular columns and steel beams, was analyzed under local fire by ANSYS. After analyzing the structure with the method of hot - structural coupling using standard heating curve ISO-834, some consequence were obtained such as the regularity of temperature field distribution of beams and columns and the fire endurance and critical temperature of the structure. It turned out that the bottom flange at the end of the beams appeared local buckling when the structure reached the limit state by fire, and the first plastic hinge appeared at the end of beams. Furthermore, because the horizontal displacement of column is small, the overall collapse of structure can be avoided effectively.

Improvement of Seismic Resistance Performance of Thermal Power Plants by Applying Vibration Control Dampers

2017 ◽  
Author(s):  
Koki Fushimi ◽  
Satoshi Fujita ◽  
Keisuke Minagawa
Keyword(s):  
Vibration Control ◽  
Power Plants ◽  
Thermal Power ◽  
Analytical Models ◽  
Earthquake Resistance ◽  
Response Analysis ◽  
Thermal Power Plants ◽  
Support Structure ◽  
Large Numbers ◽  
Resistance Performance

Improving earthquake resistance of power plants has been important since Great East Japan earthquake occurred in 2011. In particular, thermal power plants accounted for most of the current Japanese power supply. Thus, improving earthquake resistance of the thermal power plants has been paid attention than other power plants. In current coal-fired power plants, boilers are simply suspended from the top of the support structures. Therefore, boilers easily vibrate. In order to suppress vibration of boilers during earthquakes, stoppers made of steel are installed between a boiler and its support structure. The stoppers dissipate vibration energy by plastic deformation. Therefore, the stoppers are effective in earthquakes with relatively small numbers of repeat counts, but may not effect in earthquakes with relatively large numbers of repeat counts. Then we propose installation vibration control dampers in support structure to suppress more the vibration and perform also in the repetition of earthquakes. In this paper, a seismic response analysis using analytical models of the boiler structure is conducted. In addition, a vibration control damper suitable for installed in the support structure are considered. As a result, a rectangle hysteresis damper is suitable as vibration control damper for the support structure.

scholarly journals STUDI KERUNTUHAN AKIBAT BEBAN SIKLIK DENGAN METODE ANALISA PUSHOVER PADA PORTAL

2018 ◽  
Author(s):  
ARMAN SETIAWAN
Keyword(s):  
Pushover Analysis ◽  
Earthquake Resistance ◽  
Seismic Evaluation ◽  
Linear Behavior ◽  
Technological Advances ◽  
New Concepts ◽  
Earthquake Resistant ◽  
Information Patterns ◽  
Immediate Occupancy ◽  
Resistance Performance

As the development of technological advances in the field of civil engineering, came new concepts and methods of analysis and planning in earthquake resistant building one concept of Performance Based Seismic Evaluation (PBSE) by the method of analysis of static thrust load or Pushover analysis. This method is able to provide information patterns exist when the buildings collapse burdened earthquake forces that exceed the capacity of the building.The purpose of writing final task is to re-evaluate the earthquake resistance performance of the three storey building portal to determine the capacity of effective structures and earthquake behavior by showing the scheme of plastic joints on the beam and column elements with the method based on the rules code Pushover Applied Technology Council (ATC-40) and determine the level structural performance of earthquake resistance based those the rules.From the results of the study, structure capable of providing non-linear behavior indicated the initial phase and the majority of the plastic joints occur in the new block elements and column elements. Performance level in the structure of Immediate Occupancy criteria which means a little damage on structural and the building can be used again.

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