Seismic Response Analysis of Twin-Tower Building with Enlarged Base

2014 ◽  
Vol 912-914 ◽  
pp. 1534-1537
Author(s):  
Shao Bo Zhang ◽  
Ke Lun Wei ◽  
Bi Jian Xiao
Keyword(s):  
Finite Element ◽  
Dynamic Response ◽  
Boundary Conditions ◽  
Seismic Response ◽  
Time History ◽  
Response Analysis ◽  
Rigid Boundary ◽  
Finite Element Software ◽  
Elastic Boundary ◽  
Elastic Boundary Conditions

This paper adopts large finite element software ANSYS to establish finite element model of twin-tower building with enlarged base, uses dynamic time history analysis method for seismic response calculation, compare and analyze the calculation results of twin-tower building with enlarged base under elastic boundary conditions and rigid boundary conditions. The results showe that dynamic response for model under elastic boundary conditions is larger than dynamic response for model under rigid boundary conditions, and elastic boundary conditions is more close to the actual situation.

Dynamic Response Analysis for Intersection of Transverse Traffic Tubes and Main Tunnel in a Highly Seismic Region

2011 ◽  
Vol 255-260 ◽  
pp. 2510-2514
Author(s):  
Lin Jie Chen ◽  
Bo Liang ◽  
Zhi Yong Wang
Keyword(s):  
Dynamic Response ◽  
Weak Link ◽  
Interaction Model ◽  
Time History ◽  
Response Analysis ◽  
Seismic Action ◽  
Seismic Region ◽  
Elastic Boundary ◽  
History Analysis ◽  
Elastic Boundary Conditions

The intersection of the transverse traffic tube and main tunnel is the weak link in the tunnel, as its structural forms are changed greatly and stiffness is discontinuous, so it does not help resist the seismic action. Based on the soil-structure interaction model and the use of visco-elastic boundary conditions and of time history analysis method, this paper, in combination with the Menglian tunnel engineering on the Bao-Teng Highway in Yunnan, has made a research of seismic dynamic response in the aforesaid intersection by analyzing its seismic dynamic characteristics and stability upon acquiring its displacement, stress, acceleration of dynamic response and distribution characteristics, and then put forth some disposal measures by seismic reinforcement, which can serve as reference to seism-reducing design of the weak link in the tunnel as well as other similar projects in a highly seismic region.

Seismic Response Analysis of Prestressed Concrete Bridge

2014 ◽  
Vol 556-562 ◽  
pp. 675-678
Author(s):  
Tao Zhang ◽  
Deng Pan ◽  
Jin Chao Yue
Keyword(s):  
Finite Element ◽  
Boundary Conditions ◽  
Prestressed Concrete ◽  
Large Scale ◽  
Elastic Recovery ◽  
Response Analysis ◽  
Concrete Bridge ◽  
Elastic Boundary ◽  
Prestressed Concrete Bridge ◽  
Elastic Boundary Conditions

Using large-scale finite element analysis software ANSYS analyzes seismic respons of prestressed concrete bridge, respectively establish finite element model under viscoelastic boundary conditions and elastic boundary conditions, compare and analyze seismic respons of bridge structure under two kinds of boundary conditions. Compared with elastic boundary conditions, viscoelastic boundary conditions not only can simulate elastic recovery performance of foundation, but also can realize infinite medium radiation damping. The research results provide the basis for the seismic design and protection of bridge.

Seismic Response Analysis of Fuyang River Aqueduct

2014 ◽  
Vol 912-914 ◽  
pp. 1739-1742
Author(s):  
Cai Ying Chen ◽  
Ke Lun Wei ◽  
Gui Qiang Yang
Keyword(s):  
Finite Element ◽  
Boundary Conditions ◽  
Seismic Response ◽  
Elastic Recovery ◽  
Element Model ◽  
Response Analysis ◽  
Actual Situation ◽  
Seismic Response Analysis ◽  
Finite Element Software ◽  
Recovery Performance

In this paper, using finite element software ANSYSanalyzes seismic respons of Fuyang river aqueduct, respectively establishfinite element model under viscoelastic boundary conditions and elasticboundary conditions, compare and analyze seismic respons of aqueduct structureunder two kinds of boundary conditions. The results show that, compared withelastic boundary conditions, viscoelastic boundary conditions not only cansimulate elastic recovery performance of foundation, but also can realizeinfinite medium radiation damping, and viscoelastic boundary conditions is moreclose to the actual situation.

scholarly journals The Key Construction Technology Research on the Intercontinental Shanghai Wonderland

2020 ◽  
Vol 2020 ◽  
pp. 1-16
Author(s):  
Peng Jiang ◽  
Shaole Yu ◽  
Wei Luan ◽  
Xinxi Chen ◽  
Yang Qin ◽  
...  
Keyword(s):  
Finite Element ◽  
Dynamic Response ◽  
Safety Margin ◽  
Time History ◽  
Construction Technology ◽  
Construction Process ◽  
Component Size ◽  
Finite Element Software ◽  
Deep Pit ◽  
The Stability

The Intercontinental Shanghai Wonderland is the first natural ecological hotel built in an abandoned mine in the world, which faces many difficulties in the construction process. To solve the difficult problems in the construction process, the study was carried out from the stability analysis of the deep pit cliff, the mechanical performance of the structure, and the construction technology. The Intercontinental Shanghai Wonderland is built around the abandoned deep pit cliffs, and the stability of the deep pit cliffs directly affects the safety of the building. The dynamic response characteristics and the instability characteristics of the mine slope under the dynamic response were analyzed by a three-dimensional dynamic finite element method. The calculation results showed that with effective anchoring support measures, the stability coefficient of slope under static load and small earthquakes was large, which had a certain safety margin. Under the action of large earthquakes, the slope could still meet the stability requirements. The structure of the Intercontinental Shanghai Wonderland is a unique two-point support structure system. It shows the deformation and stress characteristics of one fixed end and one simply supported end under horizontal load. The elastic-plastic time history response of structures under actions of rare earthquakes was analyzed through the finite element analysis software. The analysis results show that the current structural system along with the design of component size and strength can meet the seismic performance of the structure under actions of rare earthquakes. The Intercontinental Shanghai Wonderland was built in a stone pit 88 m below the surface. Therefore, the transportation of materials was a difficulty in the construction process. A set of ultradeep concrete downward conveying equipment was invented to solve the difficulty. The construction process of the whole structure was simulated by finite element software, which provided a safety guarantee for the construction of the whole structure.

Dynamic Response Analysis of Submarine Pipeline under Action of Current

2014 ◽  
Vol 1061-1062 ◽  
pp. 767-770
Author(s):  
Fan Lei ◽  
Yu Lin Deng ◽  
Xiao Hua Zhao
Keyword(s):  
Finite Element ◽  
Flow Field ◽  
Dynamic Response ◽  
Drag Force ◽  
Response Analysis ◽  
Vibration Characteristic ◽  
Submarine Pipeline ◽  
Structure Interaction ◽  
Finite Element Software ◽  
Distribution Of Flow

It’s important to study the vibration characteristic of submarine pipelines under current for reducing the harmful vibration. Research on fluid-structure interaction of submarine pipeline under current was presented. The pressure and velocity distribution of flow field around pipe with different velocity of flow were studied by ANSYS finite element software. The results show that the pipe is under the action of drag force along the direction of flow. The drag force increases with the flow velocity.

Dynamic Response Analysis of Tandem Rolling Mill in Rolling Process

2018 ◽  
Vol 764 ◽  
pp. 391-398
Author(s):  
Xing Han ◽  
Lian Jin Li
Keyword(s):  
Finite Element ◽  
Dynamic Response ◽  
Rolling Mill ◽  
Rolling Force ◽  
Rolling Process ◽  
Steel Pipe ◽  
Response Analysis ◽  
Dynamic Response Analysis ◽  
Finite Element Software ◽  
Seamless Steel

Due to the influence of rolling force fluctuations, tube size changes and material uniformity and other factors, vibration and other phenomenon inevitably occur in the rolling process of tandem rolling mill. This vibration has a great impact on the dynamic stability of the mill and rolling reduction, and will significantly reduce the dimensional accuracy and surface quality of seamless steel pipe. In this paper, the non-linear finite element software ABAQUS is used to simulate the rolling process of seamless steel pipe. First, rolling force of the first frame with the maximum rolling force of PQF rolling mill is calculated. The reliability of rolling force calculated by the finite element method is verified by the test experiment. The dynamic response analysis of the roll is carried out to obtain the dynamic response curve of the roll in the rolling state and to provide technical support for the rolling schedule with the calculated rolling force being the load.

Structure Dynamic Response Analysis of Pipe String under the Action of Perforating Detonation Wave

2014 ◽  
Vol 986-987 ◽  
pp. 887-890 ◽  
Author(s):  
Xiang Sun ◽  
Zong Zhi Yang ◽  
Yun Gang Liu ◽  
Mai Quan Zhang ◽  
Yuan Fei Zhu
Keyword(s):  
Dynamic Response ◽  
Impact Load ◽  
Equivalent Stress ◽  
Time History ◽  
Response Analysis ◽  
Wave Impact ◽  
Dynamic Response Analysis ◽  
Finite Element Software ◽  
Structure Dynamic ◽  
Stress Changes

Impact load of perforation will result in strong vibration of downhole string, string operated such as bending fracture accidents. Considering the clearance between string and casing, using space beam and spring element to solve the nonlinear contact problems between oil jacket, established the numerical model of string structure dynamic response analysis in horizontal well. Extracting downhole perforation pressure wave monitoring data, using the finite element software ANSYS, analyzed the dynamic response of the tubing under perforation of detonation shock wave impact, got the displacement of the tubing、acceleration time history. The results show that, without packer, the maximum Mises equivalent stress in the end of the string, the deformation and stress changes in deflecting section of the tubing string are bigger than in vertical Wells.

Seismic Response Analysis of LNG Storage Tank under the Vertical Earthquake Excitation

2013 ◽  
Vol 368-370 ◽  
pp. 1743-1746
Author(s):  
Li Jian Zhou ◽  
Yuan Gang Fan ◽  
Bin Gao ◽  
Xiang Ying Wang
Keyword(s):  
Finite Element ◽  
Seismic Response ◽  
Storage Tank ◽  
Axial Stress ◽  
Equivalent Stress ◽  
Response Analysis ◽  
Seismic Action ◽  
Seismic Response Analysis ◽  
Earthquake Excitation ◽  
Finite Element Software

Use Adina finite element software, established the finite element model of the the volume 10000m3LNG storage tank, against the concrete outer tank of full containment type LNG storage tank vertical seismic action seismic response analysis. Take acceleration seismic input method, select the four categories venue seismic waves, LNG storage tank stress analysis of vertical seismic action, come in different earthquake LNG storage tank outer tank equivalent stress, hoop stress and axial stress distribution.

Seismic Response Analysis for Assembled Precast Concrete Residence

2014 ◽  
Vol 580-583 ◽  
pp. 1755-1758
Author(s):  
Zhao Bo Meng ◽  
Yu Cao ◽  
Guan Dong Qiao ◽  
Yong Sheng Zhao
Keyword(s):  
Finite Element ◽  
Seismic Response ◽  
Production Efficiency ◽  
Precast Concrete ◽  
Green Building ◽  
Response Analysis ◽  
Force Component ◽  
Seismic Response Analysis ◽  
Finite Element Software ◽  
Enhancing Production

Assembled precast concrete structure is composed of precast element, which needs to be assembled and connected as the main force component. It is propitious to the development of building industrialization, enhancing production efficiency and promoting green building. Seismic response of a 6 storey assembled precast concrete residence was analyzed based on finite element software ANSYS. The results show that stiffness of assembled precast concrete residence is larger, and all of interbedded drift angles comply with stipulations of the standard.

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