Comparative Analysis of Three Kinds of Mega Steel Frame System Static Performance

2015 ◽  
Vol 775 ◽  
pp. 243-246
Author(s):  
Si Qi Yang ◽  
Jun Hua Cai ◽  
Jia Chen ◽  
Bai Jian Tang
Keyword(s):  
Steel Structure ◽  
Internal Force ◽  
Steel Frame ◽  
Frame Structure ◽  
Horizontal Wind ◽  
High Rise ◽  
Load Combination ◽  
Frame System ◽  
Static Performance ◽  
And Control

Mega steel structure because of its own advantages is widely used in high-rise buildings, especially in super high-rise buildings. Mega frame structure, mega steel frame-prestressed composite bracing structure and mega steel frame-cable bracing structure were analyzed in this paper. The structure deformation and internal force of beam and column of structures were studied under load combination of Pretension and vertical loads, horizontal wind load. The results show that prestressed cable can improve the system stiffness, make the overall stiffness more uniform and control the deflection of mega beam and axial force of mega column effectively.

Static Analysis of Mega Steel Frame-Cable System Bracing Structure

2015 ◽  
Vol 744-746 ◽  
pp. 298-303
Author(s):  
Si Qi Yang ◽  
Jun Hua Cai ◽  
Jia Chen ◽  
Bai Jian Tang
Keyword(s):  
Steel Structure ◽  
Internal Force ◽  
Steel Frame ◽  
Vertical Load ◽  
Cable System ◽  
Structure Deformation ◽  
Load Combination ◽  
Static Performance ◽  
New Type ◽  
Prestressed Steel Structure

In order to study the static performance of a new type e vertical prestressed steel structure called mega steel frame-cable bracing structure, structure deformation, internal force of beam and column and the remaining pretension of cable under pretension, vertical load and horizontal load alone as well as pretension with vertical load, wind load combination condition were analyzed in this paper. Research shows that prestressed cable can effectively improve mechanical and deformation performance of mega beam under vertical load, improve the system stiffness and make the overall stiffness more uniform.

Experimental Research and Finite Element Analysis on Behavior of Steel Frame with Semi-Rigid Connections

2010 ◽  
Vol 168-170 ◽  
pp. 553-558
Author(s):  
Feng Xia Li ◽  
Bu Xin
Keyword(s):  
Architectural Design ◽  
Plastic Hinge ◽  
Steel Frames ◽  
Seismic Energy ◽  
Internal Force ◽  
Steel Frame ◽  
Frame Structure ◽  
Element Analysis ◽  
Rigid Deformation ◽  
Steel Frame Structure

Most steel beam-column connections actually show semi-rigid deformation behavior that can contribute substantially to overall displacements of the structure and to the distribution of member forces. Steel frame structure with semi-rigid connections are becoming more and more popular due to their many advantages such as the better satisfaction with the flexible architectural design, low inclusive cost and environmental protect as well. So it is very necessary that studying the behavior of those steel frame under cyclic reversal loading. On the basics of connections experiments the experiment research on the lateral resistance system of steel frame structure has been completed. Two one-second scale, one-bay, two-story steel frames with semi-rigid connections under cyclic reversal loading. The seismic behavior of the steel frames with semi-rigid connections, including the failure pattern, occurrence order of plastic hinge, hysteretic property and energy dissipation, etc, was investigated in this paper. Some conclusions were obtained that by employing top-mounted and two web angles connections, the higher distortion occurred in the frames, and the internal force distributing of beams and columns was changed, and the ductility and the absorbs seismic energy capability of steel frames can be improved effectively.

The Structure of the Performance that Resist the Static Wind on the Reinforced of Steel Structure

2012 ◽  
Vol 193-194 ◽  
pp. 1109-1112
Author(s):  
Li Ming Wu ◽  
Xiao Liang Luo ◽  
Zi Jian Wang
Keyword(s):  
Reinforced Concrete ◽  
Steel Structure ◽  
Internal Force ◽  
Frame Structure ◽  
Reinforced Concrete Frame ◽  
Wind Resistance ◽  
Concrete Frame ◽  
Building Model ◽  
Finite Element Software ◽  
Reinforced Concrete Frame Structure

Taking a 5-story reinforced concrete frame structure on the transformed 3-layer steel frames for an example, use finite element software ANSYS to reformation as a whole building model under static wind load changes for comparative analysis of internal force and displacement of the corresponding node. Analysis results show that in the transformation of steel on reinforced concrete frame structure, should fully take into account the structural stiffness change on construction of the overall effect of wind resistance, so that the transformation of the steel concrete frame structure more reasonable.

Study on FEM Analysis of Multistory Steel Frame Structure and its Optimal Design

2012 ◽  
Vol 433-440 ◽  
pp. 2194-2200
Author(s):  
Ru Wang ◽  
Long Qin ◽  
Zhen Qi Shao
Keyword(s):  
Optimal Design ◽  
Parametric Design ◽  
Fem Analysis ◽  
Element Model ◽  
Steel Frame ◽  
Frame Structure ◽  
Structural Element ◽  
Load Combination ◽  
Section Size ◽  
Steel Frame Structure

An finite element model (FEM) of multistory steel frame structure is established by applying ANSYS parametric design language(APDL) in this paper, where the objective function of optimization is defined as the minimum volume of a Pin framework. The optimal design are carried on by applying the optimized toolbox of ANSYS, based on analysis the situation of the most disadvantageous load combination. Several approaches have been proposed to avoid restraining to the local minimum. Experimental results show that the section size of the structural element improved obviously.

The Design Review and Optimization of the Special-Shaped Steel Frame Structure

2010 ◽  
Vol 163-167 ◽  
pp. 600-604
Author(s):  
Ke Dong Tang ◽  
Jian Fu ◽  
Jun Dai ◽  
Peng Zhang ◽  
Rui Feng Yu
Keyword(s):  
Circulating Fluidized Bed ◽  
Reference Value ◽  
Steel Structure ◽  
Steel Frame ◽  
Frame Structure ◽  
Boiler Steel ◽  
Element Analysis ◽  
Structure Reliability ◽  
Calculation Results ◽  
Steel Frame Structure

According to the finite element analysis of a circulating fluidized bed boiler steel frame structure, the essay concludes to the calculation results of the main steel structure, moreover the structure and the composition of bars are adjusted and optimized which improve the safety of the structure reliability and reduce the volume of steel. All of the above contents have certain reference value on the similar structure.

A New Kind of Modular Assembly Steel Structure System

2014 ◽  
Vol 578-579 ◽  
pp. 741-744
Author(s):  
Zai Hua Zhang ◽  
Xing Ping Shu ◽  
Ran He
Keyword(s):  
Steel Structure ◽  
Steel Frame ◽  
Modular Assembly ◽  
Structure System ◽  
Assembly Structure ◽  
Frame System ◽  
New Type ◽  
Structure Engineering

As a new type of structure system suitable for the realization of building industrialization, assembly structure system is a trend in the development of steel structure engineering. In this paper, a kind of assembly truss beam steel frame system is proposed. The composition of system, the technology characteristic of components and connections are analyzed in detail. Meanwhile some problems need to be solved are also put forward.

Research of the Influence of Snow Load Distribution Factor on Mechanical Performance of Portal Frame

2014 ◽  
Vol 578-579 ◽  
pp. 846-849
Author(s):  
Yan Liu ◽  
Li Juan Guo ◽  
Hui Ling Wang ◽  
Fei Wang
Keyword(s):  
Mechanical Performance ◽  
Steel Structure ◽  
The United States ◽  
Frame Structure ◽  
Distribution Factor ◽  
Snow Load ◽  
Load Combination ◽  
Portal Frame ◽  
Deformation Features ◽  
Portal Frame Structure

The dissertation studies the force and deformation features of the portal frame structure under the snow load and load combination. The double cross gable portal frame model was established by 3d3s software in the paper, and analyzed under snow loading according to the regulations of China, Europe and the United States respectively. And some suggestions were put forward on the design of light-weight steel structure in China according to the comparison and analysis.

The Control Effect Analysis of the Variable Frequency TMD Applied to the Frame Structure

2012 ◽  
Vol 446-449 ◽  
pp. 3486-3489
Author(s):  
Mao Yu Zhang ◽  
Bo Li ◽  
Yan Ru Wang
Keyword(s):  
Dynamic Response ◽  
Dynamic Analysis ◽  
Frame Structure ◽  
Variable Frequency ◽  
Control Effect ◽  
Effect Analysis ◽  
High Rise ◽  
High Rise Building ◽  
Multiple Frequencies ◽  
And Control

Frequency variable TMD system is developed based on the conventional TMD system, which has multiple frequencies and thus merits of MTMD. Frequency variable TMD can effectively reduce the dynamic response of structure induced by its own frequencies. In this study, this technique is applied to dynamic analysis of high-rise building. The results show that frequency variable TMD system can optimize the dynamic response of the structure and control the vibration effectively, compared to conventional TMD system.

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