Energy Dissipation Analysis of Composite Frame Structure with Supplemental Viscous Dampers

2014 ◽  
Vol 501-504 ◽  
pp. 1498-1502
Author(s):  
Shao Wei Duan ◽  
Wei Huang ◽  
Xian Tan
Keyword(s):  
Differential Equation ◽  
Time History ◽  
Element Model ◽  
Frame Structure ◽  
Discrete Structure ◽  
Composite Frame ◽  
Multiparticle System ◽  
History Analysis ◽  
Object Of Study ◽  
Beam Frame

With a 10 layer of concrete filled square steel tubular column beam frame structure as the object of study ,discrete structure into multiparticle system and establish a dynamic differential equation,solve this dynamic equation by Newmark -β method .Establish thefinite element model of the structure is based on Sap2000 ,then dynamic elastic-plastic time history analysis are carried out, the research results show that the dynamic characteristics of structure,s story drifts,story shear and acceleration with energy dissipating devices are smaller than the model without energy dissipating devices under different earthquake intensities. the damped effect is considered obvious.

scholarly journals Time-history Analysis of a New Assembly Frame with Steel-concrete Composite Lattice Column

2020 ◽  
Vol 198 ◽  
pp. 01015
Author(s):  
Yafei Zhao ◽  
Xiaotong Peng ◽  
Jie Man ◽  
Chen Lin ◽  
Xu Zhang
Keyword(s):  
Time History ◽  
Steel Structure ◽  
Element Model ◽  
Frame Structure ◽  
Lateral Stiffness ◽  
Reinforced Concrete Structure ◽  
History Analysis ◽  
Energy Dissipation Capacity ◽  
Composite Lattice ◽  
Steel Frame Structure

A new assembly steel-concrete composite lattice column frame (SLCF) was proposed as a solution for prefabricated steel structure residential. In order to study the seismic performance of SLCF, a non-linear finite element model under bidirectional ground motion was established by using Sap2000. Based on that, the model of SCLF, reinforced concrete structure and steel frame structure was compared. The results indicate that SCLF has the better strength, lateral stiffness and energy dissipation capacity.

Isolation Performance Analysis of Concrete-Filled Steel Tubular Composite Structure Based on the Lead Rubber Bearing

2014 ◽  
Vol 919-921 ◽  
pp. 152-157
Author(s):  
Shao Wei Duan ◽  
Xian Tan ◽  
Wei Huang
Keyword(s):  
Element Model ◽  
Frame Structure ◽  
Steel Beam ◽  
Structure Model ◽  
Rubber Bearing ◽  
Lead Rubber Bearing ◽  
Traditional Structure ◽  
Object Of Study ◽  
Beam Frame ◽  
Isolation Performance

With a 6 layer of concrete-filled steel tubular column-steel beam frame structure as the object of study,established finite element model of the structure is based on Sap2000,the traditional structure model and the isolation structure model were compared.The research results show that the dynamic characteristics of structure storey drifts and acceleration with Lead Rubber Bearing are smaller than the model without Lead rubber bearing under different earthquake intensities. The isolation effect is considered obvious.

Nonlinear Dynamic Analysis of the Damping Frame Structure System

2012 ◽  
Vol 594-597 ◽  
pp. 886-890 ◽  
Author(s):  
Gan Hong ◽  
Mei Li ◽  
Yi Zhen Yang
Keyword(s):  
Energy Dissipation ◽  
Seismic Response ◽  
Nonlinear Dynamic ◽  
Time History ◽  
Time History Analysis ◽  
Frame Structure ◽  
Force Model ◽  
Operating Characteristics ◽  
Restoring Force ◽  
History Analysis

Abstract. In the paper, take full account of energy dissipation operating characteristics. Interlayer shear-frame structure for the analysis of the Wilson-Θmethod ELASTOPLASTIC schedule, the design of a nonlinear dynamic time history analysis procedure. On this basis, taking into account the restoring force characteristics of the energy dissipation system, the inflection point in the restoring force model treatment, to avoid a result of the calculation results of distortion due to the iterative error. A frame structure seismic response time history analysis results show that: the framework of the energy dissipation significantly lower than the seismic response of the common framework, and its role in the earthquake when more significant.

Elastoplastic time history analysis of reinforced engineered cementitious composite or engineered cementitious composite–concrete composite frame under earthquake action

2016 ◽  
Vol 20 (4) ◽  
pp. 491-503 ◽  
Author(s):  
Fang Yuan ◽  
Jinlong Pan ◽  
Christopher KY Leung
Keyword(s):  
Cyclic Loading ◽  
High Performance ◽  
Time History ◽  
Frame Structure ◽  
Dissipated Energy ◽  
Seismic Resistance ◽  
Cementitious Composite ◽  
Engineered Cementitious Composite ◽  
Composite Frame ◽  
Story Drift

Engineered cementitious composite is a class of high-performance cementitious composites with pseudo-strain hardening behavior and excellent crack control capacity. Substitution of concrete with engineered cementitious composite can greatly reduce the cracking and durability problems associated with low tensile strength and brittleness of concrete and can significantly increase structural seismic resistance. In this article, a pair of beam–column joints with various matrix types has been tested under reversed cyclic loading to study the effect of substitution of concrete with engineered cementitious composite in the joint zone on the seismic behaviors of composite members. After that, a simplified constitutive model of engineered cementitious composite under cyclic loading is proposed, and the structural performance of steel reinforced engineered cementitious composite members is simulated by fiber beam elements. The accuracy of the model is verified with test data. Finally, three frame structures with different matrixes subjected to earthquake actions were numerically modeled to verify the contribution of ductile engineered cementitious composite material to structural seismic resistance. The seismic responses or failure mechanisms, deformation patterns, and energy dissipation capacities for each frame structure are analyzed and compared. The simulation results indicate that the application of engineered cementitious composite can reduce the maximum story drift ratio, and the distributions of the dissipated energy are more uniform along the building height when engineered cementitious composite is strategically used in ground columns and beam–column joints of the frame structure. The seismic performance of the reinforced engineered cementitious composite-concrete composite frame is found to be even better than the frame with all concrete replaced by engineered cementitious composite.

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.

Analysis of Structural Properties and Seismic Performance of a Temple

2012 ◽  
Vol 535-537 ◽  
pp. 2007-2011
Author(s):  
Da Feng Gao ◽  
Lei Wang ◽  
Peng Fei Li
Keyword(s):  
Safety Margin ◽  
Time History ◽  
Element Model ◽  
Shear Capacity ◽  
Timber Structure ◽  
Spring Element ◽  
History Analysis ◽  
The Ancient Chinese ◽  
The Temple ◽  
Column Base

In order to further study the seismic mechanism of ancient timber structure, the wooden structure of the temple was taken as the research object, and the reasonable mechanical model was established by applying semi-rigid spring element to simulate mortise-tenon joint, tou-kung and column base. The test of the compressive, bent and the shear capacity all met requirements by analyzing the model under the static load, and the average safety margin of the structure is 86.7%. The first six inherent frequencies and vibration shapes were obtained by analysing the finite element model using the method of Block Lanczos, With full transient analysis, considered the model in the El-Centro wave, Taft wave and Lanzhou artificial wave excitation under the three earthquake time history analysis, and got the model acceleration time history curves, the results show that the ancient Chinese timber structure has better aseismic performance. The above-mentioned methods and corresponding conclusions could provide the reference for maintenance and protection of ancient Chinese timber structure.

Irregular Structure of the Metal Energy Dissipation Wrest Resistant Performance Analysis

2011 ◽  
Vol 105-107 ◽  
pp. 818-822
Author(s):  
Xiao Fei Teng ◽  
Si Yang Chen ◽  
Bin Luo
Keyword(s):  
Time History ◽  
Frame Structure ◽  
Software Modeling ◽  
Element Analysis ◽  
Irregular Structure ◽  
History Analysis ◽  
Framework Model ◽  
Before And After ◽  
Integral Structure ◽  
Dynamic Time

To make a top local adding stories of “L” flat facade irregular frame structure with good resistance to twist and integrity, can better satisfy the requirements of local seismic fortification intensity,using metal damper to this after-adding-stories framework model for processing. Using SAP2000 finite element analysis software modeling and in its install metal damper dynamic time-history analysis before and after. Results show that the structure using metal consumption technology in consume earthquake input energy at the same time can enhance structure rigid and floor wrest resistant and strengthen the lateral stiffness integral structure seismic performance.

Influence of Wave Passage Effect on Seismic Response of Truss String Structure Co-Working with its Base Frame

2014 ◽  
Vol 533 ◽  
pp. 154-158
Author(s):  
He Peng Wang ◽  
Zhong Gen Xu ◽  
Chang Gen Deng
Keyword(s):  
Seismic Waves ◽  
Time History ◽  
Element Model ◽  
Seismic Responses ◽  
Passage Effect ◽  
History Analysis ◽  
Insertion Method ◽  
String Structure ◽  
Wave Passage ◽  
Wave Passage Effect

By inputting two groups of seismic waves with phase differences of 0.16s, 0.34s, 0.5 and 0.34s, 0.66s, 1.0s to column elements divided into four parts of lower story of finite element model with insertion method, this paper analyzed the influence of wave passage effect on seismic responses of truss string structure of Guangzhou Convention and Exhibition Centre co-working with its base frame by time history analysis method. The results show that: because of natural vibration characteristics of structure, wave traveling has some effect on seismic responses of truss string structure of Guangzhou Convention and Exhibition Centre.

Study on the Influence of Infilled Wall on the Seismic Performance of Bottom Frame Structure

2014 ◽  
Vol 1065-1069 ◽  
pp. 1249-1253
Author(s):  
Hong Yu Deng ◽  
Bai Tao Sun
Keyword(s):  
Seismic Design ◽  
Time History ◽  
Frame Structure ◽  
Torsional Response ◽  
Finite Element Software ◽  
Content Ratio ◽  
History Analysis ◽  
Calculation Results ◽  
Current Code ◽  
Bottom Frame

In the current code of seismic design in our country,infilled wall are considered as non-structural component and do not participate in the seismic checking. In the bottom frame structure, the infilled wall of the first floor often change the number and position for using function at random,this will have unfavorable impact on the main structure. In this paper, a serious damaged bottom frame structure in high intensity area in Wenchuan earthquake is taken as the research object,and 3 comparative calculation models are designed, elasto-plastic time-history analysis is carried out on the use of ABAQUS finite element software. The calculation results show that: the first layer containing infilled with high wall content ratio will reduce the first floor damage, but causing the weak layer of the overall structure transfer from the bottom to transitional masonry story which aggravates damage, at the same time, an appropriate increase in wall content ratio can reduce the torsional response at a certain extent; nonuniform arrangement infilled wall has little effect on the floor deformation and resistance, but it will increase the torsional response of the whole structure.

Optimized Simulation Method and Experimental Verification on Dynamic Analysis of a Light Truck Frame

2009 ◽  
Author(s):  
Feng Gao ◽  
Yonghua Xiong ◽  
Lei Tian ◽  
Farong Du ◽  
Guoyan Xu
Keyword(s):  
Geometric Model ◽  
Dynamic Performance ◽  
Three Dimensional ◽  
Element Model ◽  
Simulation Method ◽  
Frame Structure ◽  
Light Truck ◽  
Combined Simulation ◽  
Set Up ◽  
Beam Frame

The three-dimensional geometric model of the fringe-beam frame had been built based on the frame structure of a light truck. In order to optimize the frame structure, the finite element model of the frame and the suspension system were set up. Considering the influence of suspension on frame dynamic performance, the modal properties of the frame model was analyzed in the commercial analysis program ANSYS, using two different methods. Based on the experiments, it was verified that combining MPC184 elements and spring elements Combin14 is a better way to simulate suspension compared to using spring finite elements only. Furthermore, the combined simulation results coincide with experimental modal analysis results, which were conducted thereafter. Subsequently, the frame stress-strain distribution rules and dynamics response were calculated under the random road spectrum excitation, and the frame dynamic parameters were obtained. This study provides some theoretical bases for frame structure improvement, and proposes an optimum method to simulate suspension. The results have direct significance in ensuring the stability, comfort and reliability of a light truck frame.

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