Study on External Wall Panel of Industrialized Housing and Seismic Behavior of Connection Joint

2012 ◽  
Vol 204-208 ◽  
pp. 2394-2398
Author(s):  
Jing Hai Yu ◽  
Gang Zhang ◽  
Jiu Peng Li
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Reinforced Concrete ◽  
Energy Dissipation ◽  
Seismic Behavior ◽  
Rational Design ◽  
Wall Panel ◽  
External Wall ◽  
Strength And Stiffness ◽  
Element Method

The lateral performance of a typical reinforced concrete external wall panel is analyzed by finite element method and the analysis results show that the reinforced concrete external wall panel has a certain strength and stiffness in its own plane. In order to rational use the strength and stiffness of the wall panel, a new type of energy dissipation connector is designed based on passive energy dissipation. The energy dissipation connector is analyzed by finite element method and the analysis results show that this energy dissipation connector has ideal hysteresis curve. The energy dissipation connector can improve the seismic behavior of main structure through rational design.

The Method Analysis of Using Finite Element Method to Determine the Bemding Moment Formula of Precast Reinforced Concrete Composite Thermal Insulation of External Wall

2012 ◽  
Vol 204-208 ◽  
pp. 3682-3685
Author(s):  
Ying Wang ◽  
Yan E Sui
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Calculation Method ◽  
Engineering Application ◽  
Wall Panel ◽  
External Wall ◽  
Wall Panels ◽  
Sandwich Type ◽  
Method Analysis ◽  
Element Method

This paper describes the calculation method and steps of compound insulation external wall panels who's whole board with openings. Using Finite Element Method to simulate and analysis the result,For in the engineering application of the sandwich type wall panel provides the basis.

scholarly journals Analisis Tegangan Regangan dan Defleksi pada Sambungan Balok-Kolom Beton Bertulang Menggunakan Beban Statik

2019 ◽  
Vol 24 (2) ◽  
pp. 122
Author(s):  
Hakas Prayuda ◽  
Martyana Dwi Cahyati ◽  
Bagus Soebandono
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Reinforced Concrete ◽  
Energy Dissipation ◽  
Precast Concrete ◽  
Crack Pattern ◽  
Static Loads ◽  
Connection Type ◽  
Element Method

Reinforced concrete is commonly used in any infrastructures. In building, it can be applied for beam and column separately, but the joints between those elements in this type of structure might be vulnerable due to the strength compared to the element itselft. In this study, some parameters namely ductility, stiffness, and energy dissipation of beam-column connection in precast concrete will be examined using finite element method. Six samples in this experiment are made considering some variations such as connection type in interior and exterios condition, round-shaped and rectanguler-shaped of column, and T-shaped and rectanguler-shaped of beam. Static loads were given in the middle of the beam and column so that the crack pattern can be obtained. From this experiment, it will be known the best and suitable joints by observing those three parmeters.

A Study on Parameters Affect Seismic Behavior of Reinforced Concrete Specially Shaped Columns

2010 ◽  
Vol 163-167 ◽  
pp. 1300-1306
Author(s):  
Pu Yang ◽  
Jing Tang
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Reinforced Concrete ◽  
Energy Dissipation ◽  
Cross Section ◽  
Seismic Behavior ◽  
Analytical Study ◽  
Longitudinal Reinforcement ◽  
Strength Capacity ◽  
Energy Dissipation Capacity

Using flexibility-based finite element method based on fiber model, several experiments of reinforced concrete specially shaped columns under cyclic loading which cross section is ‘L’, ‘T’ and ‘+’ shape with different longitudinal reinforcement and hoop reinforcement have been simulated, and the seismic behavior of columns such as strength, ductility and energy dissipation are analyzed. Results from the analytical study indicate that: 1) ductility of the column increases as quantity of hoop reinforcement increases. 2) strength capacity of the column increase linearly as ratio of longitudinal reinforcement increase, but is not seriously affected by hoop reinforcement; 3) energy dissipation capacity of the column is not significantly affected by hoop and longitudinal reinforcement, particularly in slightly nonlinear range.

scholarly journals MODAL ANALYSIS OF REINFORCED CONCRETE AND FIBER CONCRETE BEAMS

2021 ◽  
Vol 3 (1) ◽  
pp. 95-105
Author(s):  
T. Makovkina ◽  
◽  
M. Surianinov ◽  
O. Chuchmai ◽  
◽  
...  
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Reinforced Concrete ◽  
Computer Modeling ◽  
Natural Frequencies ◽  
Concrete Beams ◽  
The Finite Element Method ◽  
Fiber Concrete ◽  
Experimental Researches ◽  
Element Method

Analytical, experimental and numerical results of determination of natural frequencies and forms of oscillations of reinforced concrete and fiber concrete beams are given. Modern analytical, numerical and experimental methods of studying the dynamics of reinforced concrete and fiber concrete beams are analyzed. The problem of determining the natural frequencies and forms of oscillations of reinforced concrete and fiber concrete beams at the initial modulus of elasticity and taking into account the nonlinear diagram of deformation of materials is solved analytically. Computer modeling of the considered constructions in four software complexes is done and the technique of their modal analysis on the basis of the finite element method is developed. Experimental researches of free oscillations of the considered designs and the comparative analysis of all received results are carried out. It is established that all involved complexes determine the imaginary frequency and imaginary form of oscillations. The frequency spectrum calculated by the finite element method is approximately 4% lower than that calculated analytically; the results of the calculation in SOFiSTiK differ by 2% from the results obtained in the PC LIRA; the discrepancy with the experimental data reaches 20%, and all frequencies calculated experimentally, greater than the frequencies calculated analytically or by the finite element method. This rather significant discrepancy is explained, according to the authors, by the incorrectness of the used dynamic model of the reinforced beam. The classical dynamics of structures is known to be based on the theory of linear differential equations, and the oscillations of structures are considered in relation to the unstressed initial state. It is obvious that in the study of free and forced oscillations of reinforced concrete building structures such an approach is unsuitable because they are physically nonlinear systems. The concept of determining the nonlinear terms of these equations is practically not studied. Numerous experimental researches and computer modeling for the purpose of qualitative and quantitative detection of all factors influencing a spectrum of natural frequencies of fluctuations are necessary here.

scholarly journals Effect of the Directional Components of Earthquakes on the Seismic Behavior of an Unanchored Steel Tank

2020 ◽  
Vol 10 (16) ◽  
pp. 5489
Author(s):  
Rulin Zhang ◽  
Shili Chu ◽  
Kailai Sun ◽  
Zhongtao Zhang ◽  
Huaifeng Wang
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Ground Motion ◽  
Seismic Behavior ◽  
Axial Stress ◽  
Ground Motions ◽  
Great Influence ◽  
Liquid Sloshing ◽  
Base Shear ◽  
Element Method

This paper investigates the effect of the multi-directional components of ground motion on an unanchored steel storage tank. Both the liquid sloshing effect and contact behavior between the foundation and tank are included in the study. A three-dimensional model for a foundation–structure–liquid system is numerically simulated using the finite element method. The Lagrange fluid finite element method (FEM) in ANSYS is used to consider the liquid–solid interaction. In the liquid–structure–foundation interaction model, the contact and target elements are adapted to simulate the nonlinear uplift and slip effects between the tank and the foundation. Three earthquake ground motions are selected for evaluating the seismic behavior of the tank. Comparisons are made on the horizontal displacement, “elephant-foot” deformation, stress, base shear and moment, sloshing of the liquid, uplift, as well as slip behavior under the application of the unidirectional, bi-directional and tri-directional components. Under the selected ground motions, the horizontal bi-directional seismic component has great influence on the liquid sloshing in the tank studied in this paper. The vertical seismic component produces high compressive axial stress, and it also makes the uplift and slide of the tank bottom increase significantly. The applicability of this conclusion should be carefully considered when applied to other types of ground motion inputs.

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