Seismic Response Analysis of Different Plane Structure in Horizontal Direction

2011 ◽  
Vol 90-93 ◽  
pp. 2487-2491
Author(s):  
Xue Ling Li ◽  
Xiang Chao Yin ◽  
Hai Bin Zhang
Keyword(s):  
Seismic Response ◽  
Time History ◽  
Horizontal Direction ◽  
Theoretical Research ◽  
Response Analysis ◽  
Intensity Level ◽  
Building Structure ◽  
Seismic Response Analysis ◽  
Element Analysis ◽  
Short Side

The results of theoretical research and earthquake damage investigation show that seismic response analysis of different plane structure in horizontal direction is different. Dynamic characteristics and seismic response analysis of four kinds of architectural models with different planes were analyzed by using the finite element analysis software. The inherent characteristics and earthquake time-history curves in different intensity level X, Y direction of displacement, velocity, acceleration and angle displace were studied. The results show that the seismic response of the four kinds of structures separates gradually, and the separation gap increases with increase of earthquake intensity. The building structure is safer in the long side direction than that in the short side in lateral earthquake response. The irregular structure can cause strong response in both horizontal in a single direction of earthquake effect. The second floor is a weak layer of the building structure which should be paid more attention to.

Seismic Response Analysis on Flat L-Shaped Frame Structure Based on FEM

2012 ◽  
Vol 166-169 ◽  
pp. 2138-2142
Author(s):  
Hui Min Wang ◽  
Liang Cao ◽  
Ji Yao ◽  
Zhi Liang Wang
Keyword(s):  
Seismic Response ◽  
Three Dimensional ◽  
Time History ◽  
Frame Structure ◽  
Response Analysis ◽  
Reinforced Concrete Frame ◽  
Seismic Response Analysis ◽  
Concrete Frame ◽  
History Analysis ◽  
Complex Features

For the complex features in the form of a flat L-shaped reinforced concrete frame structure, the three dimensional FEM model of the structure was established in this paper, and the dynamic characteristics of the structure was analyzed, the participation equivalent mass of every mode’s order was obtained. Seismic response analysis for the structure was carried out with modal decomposition spectrum method and time history analysis method, the weak layer of the structure was pointed out and the reference for the structural design was provided.

The Seismic Performance Simulation Analysis on the Irregular Structure of the Castle Hotel of Dalian

2013 ◽  
Vol 663 ◽  
pp. 80-86
Author(s):  
Hai Qing Liu ◽  
Ming Ji Ma ◽  
Gui Jun Wang
Keyword(s):  
Finite Element ◽  
Seismic Response ◽  
Simulation Analysis ◽  
Three Dimensional ◽  
Time History ◽  
Element Model ◽  
Theoretical Research ◽  
Element Analysis ◽  
Disaster Experience ◽  
Irregular Structure

More and more irregular structure appears in people's lives, while the theoretical research and disaster experience show that the irregular structure in the earthquake will produce translation and torsion coupled spatial vibration, and sometimes it will cause very serious consequences. Being based on the practical engineering -the Castle Hotel of Dalian, this text makes use of finite element analysis software--- ANSYS. By analyzing the dynamic characteristics and seismic response, we get the self-vibration characteristics of the structure and the time history curve of top level displacement and acceleration of the structure under the effect of earthquake forces. The calculation results indicate that it is effective and reasonable to set up three-dimensional finite element model used for the analyzing of seismic response by ANSYS.

scholarly journals Dynamic Characteristics and Seismic Response Analysis of Self-Anchored Suspension Bridge

2012 ◽  
Vol 5 ◽  
pp. 183-188
Author(s):  
Lian Zhen Zhang ◽  
Tian Liang Chen
Keyword(s):  
Seismic Response ◽  
Seismic Design ◽  
Dynamic Characteristics ◽  
Response Spectrum ◽  
Time History ◽  
Suspension Bridge ◽  
Bridge Engineering ◽  
Response Analysis ◽  
Seismic Response Analysis ◽  
Seismic Design Code

Self-anchored suspension bridge is widely used in Chinese City bridge engineering for the past few years. Because the anchorage system of main cable has been changed from anchorage blocks to the ends of the girder, its’ dynamic mechanics behavior is greatly distinguished with the traditional earth anchored suspension bridge. This paper studies the dynamic characteristics and seismic response of one large-span self-anchored suspension bridge which is located in China/Shenyang city. Using a spatial dynamic analysis finite element mode, the dynamic characteristics are calculated out. An artificial seismic wave is adopted as the ground motion input which is fitted with acceleration response spectrum according to the Chinese bridge anti-seismic design code. Time-integration method is used to get the seismic time-history response. Geometry nonlinear effect is considered during the time-history analysis. At last, the dynamic characteristics and the behavior of earthquake response of this type bridge structure are discussed clearly. The research results can be used as the reference of seismic response analysis and anti-seismic design for the same type of bridge.

Space Seismic Response Analysis of City Elevated Curved Box Girders Bridge

2011 ◽  
Vol 255-260 ◽  
pp. 1096-1101
Author(s):  
Qing Zhao
Keyword(s):  
Seismic Response ◽  
Three Dimensional ◽  
Time History ◽  
Internal Force ◽  
Response Analysis ◽  
Box Girders ◽  
Element Analysis ◽  
History Analysis ◽  
The Finite Element Analysis ◽  
Time History Response

Taking an engineering design case about a city elevated curved box girders bridge, the dynamic calculating model of the curved box girders bridge is created by the finite element analysis program ANSYS. The analysis of curved box girders bridge with space seismic response are discussed, and a time history analysis is conducted for the curved box girders bridge subjected to the E1 Centro earthquake waves in two conditions.The internal force and the displacement time history response curve of the curved box girders bridge are obtained. The results indicate that the seismic response of curved box girders bridge with three-dimensional earthquake are bigger than two-dimensional, and consider the vertical seismic have considerable influence on the axial force of bridge piers, the internal force and displacement of box girders.

scholarly journals Seismic Response Analysis of Shaft Tower Based on The Interaction of Soil-Well Bore-Shaft Tower

2021 ◽  
Vol 943 (1) ◽  
pp. 012024
Author(s):  
L T Han ◽  
Y P Su ◽  
J W Chen ◽  
N Ge
Keyword(s):  
Seismic Response ◽  
Response Analysis ◽  
Rigid Foundation ◽  
Well Bore ◽  
Analysis Method ◽  
Analysis Model ◽  
Seismic Response Analysis ◽  
Element Analysis ◽  
Finite Element Analysis Method ◽  
The Finite Element Analysis

Abstract To study the influence of soil-well bore-shaft tower interaction on the seismic response of the shaft tower. A numerical analysis model of rigid foundation (without considering the interaction of soil-well bore-shaft tower ) and II site considering soil-well bore-shaft tower interaction is established by the finite element analysis method. The mode period, tower layer displacement and inter-story displacement of shaft tower are analyzed. The results show that, compared with rigid foundation, considering the interaction of soil-well bore-shaft tower, the mode period of the system is prolonged, the tower layer displacement and inter-story displacement of the shaft tower is enlarged. In the engineering design of shaft tower, the influence of the soil-well bore-shaft tower interaction on the seismic response of the shaft tower cannot be ignored.

scholarly journals Seismic Response Analysis of Prestressed Concrete Rocking Frame

2021 ◽  
Vol 11 (2) ◽  
pp. 585
Author(s):  
Zixiang Zhao ◽  
Xiaozu Su
Keyword(s):  
Theoretical Model ◽  
Seismic Response ◽  
Prestressed Concrete ◽  
Seismic Behavior ◽  
Time History ◽  
Equation Of Motion ◽  
Parameter Analysis ◽  
Response Analysis ◽  
Seismic Response Analysis ◽  
History Analysis

In order to investigate the seismic performance of prestressed concrete rocking frame (PCRF), a theoretical model based on rigid body is established for a one-story single-span PCRF. The PCRF studied in this paper has the connecting interfaces set at the column feet and at the inner faces of the beam–column joints, allowing the columns to be uplifted with the accompanying separation of the beam–column interface and rotation of the beam and column around the interface. The tendons are arranged along the centerline of the beam and columns. The connections between the beam and columns and the anchoring of columns are accomplished by prestressing the tendons. The theoretical model consists of a rigid beam, rigid columns and elastic tendons. The governing motion equation of the PCRF is derived based on the model and a numerical solution of the equation of motion is obtained. The energy dissipation of the PCRF is analyzed and the calculation method for the coefficient of restitution is derived. Time history analysis and parameter analysis of seismic response of the PCRF are conducted and the results show that the PCRF has promising seismic behavior.

Seismic Response Analysis of Railway Frame Piers

2012 ◽  
Vol 517 ◽  
pp. 824-831
Author(s):  
Yun Xiao ◽  
Jun Qing Lei ◽  
Zhong San Li
Keyword(s):  
Seismic Response ◽  
Response Spectrum ◽  
Time History ◽  
Longitudinal Direction ◽  
Time History Analysis ◽  
Response Analysis ◽  
Vibration Modes ◽  
Seismic Response Analysis ◽  
Spectrum Method ◽  
History Analysis

By response spectrum method, superposition method based elastic time-history analysis and nonlinear time-history analysis of Newmark-β based linear increasing acceleration method, the finite element models of frame piers 21#~29# of the Ziya River Bridge on Tianjin to Baoding railway are established, and an assistant program code is generated to analyze seismic response of the frame pier. Results indicate that the vibration modes of frame piers are scattered. Only a few modes would be aroused in a narrow band spectrum. And the seismic response obtained by the response spectrum method is generally 10%~20% smaller than which obtained by the elastic time-history analysis. Under seismic excitations along the longitudinal direction, the ratio of displacement difference between two columns to the maximum value is generally liner increased with the increasing of the girder deviation from the centre of the pier beam. And the plastic hinge yielding would occur both at the bottom and the top of pier columns under excitations of the transversal direction. As a result, taking more than 30 vibration modes into account is suggested in a seismic response analysis or design calculation for frame piers. A time-history analysis is recommended as well. The evaluation of earthquake resistant capability of the transversal direction should consider both the bottom and top of the columns, and the anti-seismic capability design of the longitudinal direction is one of the key points for frame piers in the ductility design.

The Seismic Response Analysis of Damaged Slip Component of Sliding Isolated Structure

2011 ◽  
Vol 368-373 ◽  
pp. 53-57
Author(s):  
Zhong Ming Xiong ◽  
Gao Ming Qin ◽  
Zhi Hui Zhang
Keyword(s):  
Seismic Response ◽  
Building Design ◽  
Response Analysis ◽  
Analysis Software ◽  
Seismic Response Analysis ◽  
Element Analysis ◽  
Damage Degree ◽  
Traditional Structure ◽  
The Finite Element Analysis ◽  
The Impact

In the service of sliding isolated structure, the slip component damage degree determines the safety of sliding isolated structure. The seismic response analysis about a sliding isolated frame structures was obtained by the finite element analysis software SAP2000 at various loads and compared with the traditional structure. Seismic response differences between slip component of the different forms and number damage was studied. According to Teflon invalid and the displacement-limited of energy dissipation component invalid, the impact of seismic response owing to slip component damage was analyzed. It will provide a reference for the isolated building design, the effective maintenance and damage detection.

Elastic-Plastic Seismic Response Analysis of High-Rise Building with Transfer Storey

2013 ◽  
Vol 671-674 ◽  
pp. 1341-1345
Author(s):  
Jing Wei Nie ◽  
Hong Bing Liu ◽  
Zhao Fang
Keyword(s):  
Seismic Response ◽  
Time History ◽  
Response Analysis ◽  
Seismic Response Analysis ◽  
Drift Angle ◽  
Elastic Plastic ◽  
High Rise ◽  
High Rise Building ◽  
Earthquake Record ◽  
Time History Response

The research on elastic-plastic dynamic response analysis of the high-rise building with transfer storey is carried out under different earthquake record inputs.The displacement time- history response of the top floor and the transfer storey, also the displacement envelope diagram and interlayer drift angle envelope diagram are obtained.Theoretical reference for the design of the weak layer is provided.

Benchmark of Elastic Plastic Seismic Response Analysis and Fatigue Evaluation for Piping

2015 ◽  
Author(s):  
Teruyoshi Otoyo ◽  
Akihito Otani
Keyword(s):  
Seismic Response ◽  
Shaking Table Test ◽  
Time History ◽  
Experimental Results ◽  
Shaking Table ◽  
Response Analysis ◽  
Seismic Evaluation ◽  
Seismic Response Analysis ◽  
Elastic Plastic ◽  
Fatigue Evaluation

This paper shows a benchmark result regarding elastic-plastic seismic response analysis and fatigue evaluation for of piping model excitation test. National Research Institute for Earth Science and Disaster Prevention (NIED) has a lot of experimental results of shaking table test of piping. To propose advance seismic evaluation method for piping under severe seismic event, a task in JSME Code committee performs benchmark activity for elastic plastic seismic response analysis and evaluation for piping by using NIED’s experimental results [1]. Authors are taking part in the task and have been performed a benchmark of seismic response analysis and seismic evaluation by comparing with the experimental results. For fatigue evaluation, the strain ranges and the cycles of each range obtained from strain time history were evaluated. The response acceleration and displacement was evaluated for plastic collapse.

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