Seismic Performance Analysis of a High-Rise Structure with Multi-Short Columns

2014 ◽  
Vol 578-579 ◽  
pp. 137-140
Author(s):  
Ri Rong Fu ◽  
Lan Wen Li ◽  
Xin Yan Yuan ◽  
Kang Ning Liu ◽  
Ran Li
Keyword(s):  
Seismic Performance ◽  
Pushover Analysis ◽  
Seismic Intensity ◽  
Wall Structure ◽  
Finite Element Software ◽  
Weak Beam ◽  
Short Columns ◽  
Beam Design ◽  
Rare Earthquake ◽  
Shear Frame

This paper aimed at a tall frame-shear wall structure contains multi-short columns, and did pushover analysis to this structure with finite element software, and evaluated its seismic performance under rare earthquake in seismic intensity of 6 degrees. It concluded that the structure can meet the "earthquake does not fall" seismic requirements, and will not appear the cut destruction of shear frame short columns, and can achieve "strong column weak beam" design requirements.

Study on Cold-Formed Steel of Thin-Walled Housing for Dynamic Performance

2011 ◽  
Vol 250-253 ◽  
pp. 3305-3308
Author(s):  
Yong Yao ◽  
Yun Peng Chu ◽  
Li Wang ◽  
Rui Zhao
Keyword(s):  
Seismic Performance ◽  
Seismic Waves ◽  
Lateral Displacement ◽  
Dynamic Performance ◽  
Time History ◽  
Steel Structure ◽  
Seismic Intensity ◽  
Finite Element Software ◽  
Cold Formed Steel ◽  
Rare Earthquake

Cold-formed steel structure is suitable for post-earthquake reconstruction since its good seismic performance and construction speed. Analyzing the dynamic characteristic of a two story office building by using the finite element software ANSYS. And the results show that: (1) in the time history analysis based on three types of seismic waves the lateral displacement of the structure and rotation between layers to meet the relevant specifications when confront the rare earthquake (2) Under the seismic loads, earthquake response acceleration amplification factor is smaller which indicating better seismic performance and it can be used in areas with high seismic intensity.

Study on the Seismic Performance of Shear Wall Structure with Unidirectional Wall Frames Based on Pushover Analysis

2013 ◽  
Vol 353-356 ◽  
pp. 1976-1980
Author(s):  
Kang Yuan ◽  
Ying Min Li ◽  
Song Bai Zhang
Keyword(s):  
Seismic Performance ◽  
Development Process ◽  
Plastic Hinge ◽  
Pushover Analysis ◽  
Shear Wall ◽  
Wall Structure ◽  
Deformation Characteristics ◽  
Displacement Angle ◽  
Earthquake Action ◽  
Overturning Moment

In the paper, the equation of stiff characteristic coefficient of shear wall structure with unidirectional wall frames was derived, the deformation characteristics of structure with different wall frames ratio and height were analyzed. Through pushover analysis, the seismic performance of structures were evaluated by interlayer displacement angle and plastic hinge development process. Under earthquake action, increase of wall frames ratio will make plastic deformation increase and maximum interlayer displacement floor move down.The bottom of structure is the weak region, the short wall limbs of wall frames are the weak structural vertical members. The research results show that the wall frames bring adverse effects on the structural seismic performance, so the different design meathods should be carried out according to the overturning moment proportion of wall frames.

Research on Seismic Performance of Framed Shear Wall Structure

2016 ◽  
Vol 835 ◽  
pp. 461-466
Author(s):  
Xue Feng Zhou ◽  
Dan Dan Lv
Keyword(s):  
Seismic Performance ◽  
Shear Wall ◽  
Wall Structure ◽  
Building Structure ◽  
High Rise ◽  
Finite Element Software ◽  
The Third ◽  
The Poor ◽  
Earthquake Action ◽  
Overturning Moment

The framed shear wall structure is a high-rise building structure with a transfer story, which has the poor seismic performance (upper rigid and lower flexible). The frame layer in the earthquake is prone to fail, which may even cause the collapse of building. In this paper, it uses the finite element software SATWE to explore the seismic performance of framed shear wall structure. Then we can draw the following conclusions: When the transfer story is set from the third layer to the ninth layer, the earthquake action of transfer story varies from 437.2kN into 564.9kN and is significantly higher than that of upper and lower layers; All the period of free vibration, angles of drift, bottom shear force, overturning moment of the structure have adverse effects on the structure, which are also detrimental to the structural seismic.

scholarly journals Seismic Performance of a Corroded Reinforce Concrete Frame Structure Using Pushover Method

2018 ◽  
Vol 2018 ◽  
pp. 1-12 ◽  
Author(s):  
Meng Zhang ◽  
Ran Liu ◽  
Yaoliang Li ◽  
Guifeng Zhao
Keyword(s):  
Seismic Performance ◽  
Pushover Analysis ◽  
Element Model ◽  
Reinforce Concrete ◽  
Frame Structure ◽  
Rc Frame ◽  
Concrete Frame ◽  
Rc Frame Structure ◽  
Negative Effect ◽  
Rare Earthquake

SAP2000 software was used to build the finite element model of a six-storey-three-span reinforced concrete (RC) frame structure. The numerical simulation of the seismic performance of the RC frame structure incorporating different levels of rebar corrosion was conducted using pushover analysis method. The degradation characteristics of the seismic performance of the corroded structure under severe earthquake were also analyzed. The results show that the seismic performance of the RC frame decreased significantly due to corrosion of the longitudinal rebars. And the interstory drift ratios increase dramatically with the increasing of the corrosion rate. At the same time, the formation and development of plastic hinges (beam hinges or column hinges) will accelerate, which leads to a more aggravated deformation of the structure under rare earthquake action, resulting in a negative effect to the seismic bearing capacity of the structure.

The Study on Infilled Walls Effect in RC Frame Infilled Wall Structure

2013 ◽  
Vol 353-356 ◽  
pp. 1783-1790
Author(s):  
Qing Li Meng ◽  
Chun Yu Chu ◽  
Jun Chen
Keyword(s):  
Finite Element ◽  
Plastic Hinge ◽  
Wall Structure ◽  
Rc Frame ◽  
Damage State ◽  
Finite Element Software ◽  
Out Of Plane ◽  
Depth Study ◽  
Nonlinear Numerical Simulation ◽  
Rare Earthquake

The seismic damage and even collapse of the infilled walls in RC frame infilled wall structure is the issue that needs thorough study, In this paper, firstly introduces the improved infilled wall model which can consider the interaction of in-plane and out-of-plane, and can judge the damage state of infilled walls, as well as the interaction between RC frame and infilled walls. Then, based on the finite element software OpenSees, under rare earthquake, performed the nonlinear numerical simulation of two finite element models-RC frame without infilled walls and RC frame with infilled walls, comparative analysis differences of both plastic hinge zone’s steel strain, drift and acceleration response, and in-depth study of the infilled walls effect in RC frame infilled wall structure and reason analysis.

The Seismic Behavior Analysis of the Light-Duty Steel Structure Residence System

2011 ◽  
Vol 243-249 ◽  
pp. 656-661
Author(s):  
Bin Xu ◽  
Yong Yao ◽  
Yong Jun Deng ◽  
Yue Chen ◽  
Dai Guo Chen
Keyword(s):  
Seismic Behavior ◽  
Response Spectrum ◽  
Time History ◽  
Steel Structure ◽  
Seismic Intensity ◽  
Site Classification ◽  
Structural System ◽  
Finite Element Software ◽  
Light Duty ◽  
Rare Earthquake

The light-duty steel structure residential demonstration project is analyzed by mode-superposition response spectrum method, the elastic and elastic-plastic time-history analysis, push-over analysis, which used the finite element software ETABS and PKPM. The safety is assessed. The seismic behavior of this structural system is analyzed under different site classification, design characteristic and seismic intensity, and is compared with the ordinary steel structure, concrete structure, masonry structure. The results show that, this structural system can meet the current codes under frequent and rare earthquake action. But the column has a surplus stable stress values. And it is suitable for application in large areas in China. In high intensity areas and compared with the different structure system, it shows that the lateral has the main effect on this structure.

Pushover Analysis of Eccentric High-Rise Single-Tower Building’s Frame-Shear Wall Structure

2012 ◽  
Vol 226-228 ◽  
pp. 1060-1065 ◽  
Author(s):  
Xiao Jie Cheng ◽  
Yun Chao Tai ◽  
Li Li Jia
Keyword(s):  
Rare Case ◽  
Plastic Hinge ◽  
Center Of Mass ◽  
Pushover Analysis ◽  
Shear Wall ◽  
Structure Design ◽  
Wall Structure ◽  
High Rise ◽  
Architecture Style ◽  
Rare Earthquake

High-rise building with podium is a common seen architecture style in China. Nowadays more designers inclined not to separate the main and podium, but this would lead to the eccentric between the center of mass of the tower and base, which may exceed the code requirement when the ratio of offsetting is larger than 20% and cause complicated seismic response. This paper takes an eccentric high-rise frame-shear wall structure of single tower as example, analyze the inelastic performance of this structure under rare earthquake by Pushover method, and point out the weak parts of the position by the distribution and development of plastic hinges.Draw the structure inelastic response indicators in the rare case of earthquakes, and point out the weak parts of the structure of the distribution and development of plastic hinge (region), put forward reasonable proposals for optimizing the structure design.

The Seismic Performance Evaluation of PHC Pile Wharf Based on Pushover Analysis

2014 ◽  
Vol 638-640 ◽  
pp. 1900-1904 ◽  
Author(s):  
Gui Lan Tao ◽  
Da Fei ◽  
Liang Shu
Keyword(s):  
Performance Evaluation ◽  
Seismic Performance ◽  
Response Spectrum ◽  
Pushover Analysis ◽  
Element Model ◽  
Seismic Capacity ◽  
Object A ◽  
Seismic Performance Evaluation ◽  
Parameter Conversion ◽  
Rare Earthquake

A single bent structure of PHC pile wharf was taken as the research object. A finite element model was established and studied by pushover analysis along the transverse direction by SAP2000. The parameter conversion relationship between response spectrum of ATC-40 and of Chinese codes was studied. Seismic performance evaluation of the wharf structure is conducted. The conclusion is that the single pile yield order of the PHC pile wharf is from the bottom to the top. The wharf structure meets the seismic capacity requirements on condition of frequent earthquake of 7 degree, but needs appropriate reinforcement on condition of rare earthquake of 7 degree.

scholarly journals Seismic Performance Evaluation of Typical Piers of China’s High-Speed Railway Bridge Line Using Pushover Analysis

2019 ◽  
Vol 2019 ◽  
pp. 1-17 ◽  
Author(s):  
Wei Guo ◽  
Yao Hu ◽  
Hanyun Liu ◽  
Dan Bu
Keyword(s):  
Seismic Performance ◽  
High Speed ◽  
Pushover Analysis ◽  
Dynamical Analysis ◽  
Railway Bridge ◽  
Component Level ◽  
Ground Acceleration ◽  
High Speed Railway ◽  
Low Level ◽  
Finite Element Software

Currently, it is a challenge to effectively assess the seismic performance of the high-speed railway bridge line. To figure it out, this paper discussed the applicability of the Pushover analysis in the seismic fragility of the high-speed railway bridge. As the piers are the core components to resist the earthquakes, a typical high-speed railway bridge line consisting of 22 piers was established by the finite element software OpenSees. The influences of the different pier height and sites on the fragility analysis of the pies were investigated. From the component level, the seismic performance of the high-speed railway bridge line was evaluated by the Pushover analysis. The results show that the seismic responses of the piers by the Pushover analysis are agreeable with those by the incremental dynamical analysis when the peak ground acceleration is less than 0.4g. The high piers have better seismic performance than the lower piers. The high-speed railway bridge line exhibits good seismic performance under the 7-degree design earthquake (0.15g) and the 8-degree low-level earthquake (0.10g) but may be severely damaged under the 9-degree low-level earthquake (0.40g).

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