Seismic and economic performance of a mid-rise cassette structure

2020 ◽  
Vol 23 (16) ◽  
pp. 3541-3554
Author(s):  
Zhi-Peng Chen ◽  
De-Cheng Feng ◽  
Gang Wu ◽  
Ke-Jian Ma
Keyword(s):  
Economic Performance ◽  
Seismic Analysis ◽  
Damage Index ◽  
Three Dimensional ◽  
Frame Structure ◽  
Plastic Behavior ◽  
Story Drift ◽  
Dimensional Finite Element ◽  
Seismic Records ◽  
Three Dimensional Finite Element

In this article, a new structure called cassette structure is presented. A comparative analysis of seismic and economic performance of a cassette structure and a frame structure is conducted. An existing frame office building is selected and redesigned as a cassette structure to compare the performance of the two kinds of structures. Three-dimensional finite element models are built for the two prototype structures, where fiber elements are used to simulate plastic behavior. To assess the advantages fully, seismic analysis and economic analysis are performed. Eighteen Federal Emergency Management Agency recommended seismic records are used, and the roof displacement, story drift ratio, plastic hinges development, and Park–Ang damage index are compared. Furthermore, the material, template, transportation, and assembling costs are calculated based on Chinese quotas, and the overall economic impact is evaluated. In this case, all indexes show that the cassette structure has an obvious advantage over conventional frame structure.

Three-Dimensional Seismic Analysis on Reactor Structure

2010 ◽  
Author(s):  
Naibin Jiang ◽  
Feng-gang Zang ◽  
Li-min Zhang ◽  
Chuan-yong Zhang
Keyword(s):  
Finite Element ◽  
Large Scale ◽  
Seismic Analysis ◽  
Three Dimensional ◽  
Element Model ◽  
Earthquake Excitation ◽  
Finite Element Software ◽  
Reactor Structure ◽  
Dimensional Finite Element ◽  
Three Dimensional Finite Element

The seismic analysis on reactor structure was performed with a new generation of finite element software. The amount of freedom degree of the model was more than twenty millions. The typical responses to operational basis earthquake excitation were given. They are larger than those with two-dimensional simplified finite element method, and the reasons of this phenomenon were analyzed. The feasibility of seismic analysis on large-scale three-dimensional finite element model under existing hardware condition was demonstrated, so some technological reserves for dynamic analysis on complicated equipments or systems in nuclear engineering are provided.

Numerical Analysis on Settlement Law of an Underpinning Structure Composed of Piles and Beams

2010 ◽  
Vol 163-167 ◽  
pp. 3654-3661
Author(s):  
Qiang Jia ◽  
Fang Gu
Keyword(s):  
Three Dimensional ◽  
Element Model ◽  
Frame Structure ◽  
Settlement Location ◽  
Before And After ◽  
Dimensional Finite Element ◽  
Total Settlement ◽  
Width Change ◽  
Three Dimensional Finite Element ◽  
Column Bases

The settlement law during the underpinning process of a frame structure was analysed using the three-dimensional finite element model based on ANSYS program. The birth and death technique was adopted to simulate the work state of the underpinning structure and the underpinned piles. The secondary settlement deformations in the process of foundation underpinning can be simulated when the settlement values of the column bases before underpinning were applied to the underpinning structure. The settlement-location curves of the frame column bases before and after underpinning can be gained through path operation. The analysis results show that the settlement values and the differential settlements of the underpinning location increase obviously after underpinning, the medial deflection of the underpinning beam increases, and the settlement value of corresponding frame becomes bigger. The deformation of the underpinning beam occupys big proportion in the total settlement deformation. When the length diminishes and the diameter augments of the underpinning pile, the stiffness of the pile increases, therefore the settlement values and the differential settlements decrease. When the span diminishes and the height augments of the underpinning beam, the stiffness of the beam increases, accordingly the settlement values and the differential settlements decrease obviously. The width change of the underpinning beam has little influence on the settlement values and the differential settlements.

Seismic Analysis of a Water Release Integrated Structure Part I: Response Spectrum Analysis of Intake Tower

2013 ◽  
Vol 470 ◽  
pp. 938-941
Author(s):  
Yong Wang ◽  
Zhen Ting Lin ◽  
Chao Song ◽  
Bo Ya Dong
Keyword(s):  
Spectrum Analysis ◽  
Seismic Analysis ◽  
Response Spectrum ◽  
Three Dimensional ◽  
Safety Evaluation ◽  
Response Spectrum Analysis ◽  
Water Release ◽  
Dimensional Finite Element ◽  
Earthquake Load ◽  
Three Dimensional Finite Element

The stress, deformation and stability for the intake tower of a water release integrated structure under the normal storage water level and operational basis earthquake load case are investigated using the three dimensional finite element method. The response spectrum analysis is adopted to study the seismic response of the intake tower. Special attention is paid to the weak zones of the structure and foundation. The safety evaluation of the intake tower is performed based on the computational results.

Seismic Response Analysis on Two-Tower Isolated Structure with Enlarged Base

2012 ◽  
Vol 193-194 ◽  
pp. 753-756
Author(s):  
Ying Bo Pang
Keyword(s):  
Base Isolation ◽  
Three Dimensional ◽  
Time History ◽  
Response Analysis ◽  
Analysis Model ◽  
Seismic Shear ◽  
Tower Structure ◽  
Story Drift ◽  
Dimensional Finite Element ◽  
Three Dimensional Finite Element

In this paper, the three-dimensional finite element method has been adopted to respectively establish the base isolation of the two-tower structure with enlarged base and the story-isolated vibration analysis model. Each model has been conducted the elastic-plastic time-history analysis under the horizontal earthquakes. The results show that the dynamic characteristics of the structure have been significantly changed through the arrangement of isolation layer; the seismic responses, such as the story drift, the seismic shear and the acceleration of the structure, have been also greatly affected and the damping effect of the structure is obvious.

Behavior of CFT Column Connections with Vertical Plates

2010 ◽  
Vol 163-167 ◽  
pp. 1897-1900
Author(s):  
Xin Lei Yang ◽  
Hai Liang Wang ◽  
Quan Chang Ren ◽  
Peng Dong
Keyword(s):  
Finite Element ◽  
Three Dimensional ◽  
Element Model ◽  
General Purpose ◽  
Finite Element Models ◽  
Panel Zone ◽  
Story Drift ◽  
Dimensional Finite Element ◽  
Cft Column ◽  
Three Dimensional Finite Element

In this research, a CFT column connection with vertical plates is proposed, and studied through a finite element model. For this purpose, three-dimensional finite element models are constructed by a general purpose finite element code, ABAQUS. Comparing the results of the models indicated the effectiveness of the proposed vertical plate scheme in reducing story drift, increasing the shear strength of the panel zone.

Finite Element Analysis of Nonuniformity of Tires with Imperfections5

2007 ◽  
Vol 35 (3) ◽  
pp. 226-238 ◽  
Author(s):  
K. M. Jeong ◽  
K. W. Kim ◽  
H. G. Beom ◽  
J. U. Park
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Three Dimensional ◽  
Element Model ◽  
Radial Force ◽  
Element Analysis ◽  
The Finite Element Analysis ◽  
Dimensional Finite Element ◽  
Force Variation ◽  
Three Dimensional Finite Element

Abstract The effects of variations in stiffness and geometry on the nonuniformity of tires are investigated by using the finite element analysis. In order to evaluate tire uniformity, a three-dimensional finite element model of the tire with imperfections is developed. This paper considers how imperfections, such as variations in stiffness or geometry and run-out, contribute to detrimental effects on tire nonuniformity. It is found that the radial force variation of a tire with imperfections depends strongly on the geometrical variations of the tire.

Tire Modeling by Finite Elements

1992 ◽  
Vol 20 (1) ◽  
pp. 33-56 ◽  
Author(s):  
L. O. Faria ◽  
J. T. Oden ◽  
B. Yavari ◽  
W. W. Tworzydlo ◽  
J. M. Bass ◽  
...  
Keyword(s):  
Three Dimensional ◽  
Rolling Contact ◽  
Test Problems ◽  
State Behavior ◽  
Normal Contact ◽  
New Developments ◽  
Applied Torque ◽  
Dimensional Finite Element ◽  
Tire Modeling ◽  
Three Dimensional Finite Element

Abstract Recent advances in the development of a general three-dimensional finite element methodology for modeling large deformation steady state behavior of tire structures is presented. The new developments outlined here include the extension of the material modeling capabilities to include viscoelastic materials and a generalization of the formulation of the rolling contact problem to include special nonlinear constraints. These constraints include normal contact load, applied torque, and constant pressure-volume. Several new test problems and examples of tire analysis are presented.

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