scholarly journals INFLUENCE OF THE MAXIMUM BEARING FORCE DISTRIBUTION TO THE ULTIMATE HORIZONTAL LOAD AND MAXIMUM DISPLACEMENT RESPONSE OF TRADITIONAL TIMBER HOUSES

2006 ◽  
Vol 71 (599) ◽  
pp. 111-117 ◽  
Author(s):  
Koji YAMADA
Keyword(s):  
Force Distribution ◽  
Horizontal Load ◽  
Maximum Displacement ◽  
Displacement Response ◽  
Bearing Force

Numerical Simulation of Pile-Bucket Foundation under Horizontal Load

2012 ◽  
Vol 460 ◽  
pp. 169-174
Author(s):  
Wen Bai Liu ◽  
Liang Yang ◽  
Chen Xia Zhu
Keyword(s):  
Failure Surface ◽  
Horizontal Load ◽  
Soil Pressure ◽  
Passive Region ◽  
Deep Soil ◽  
Maximum Displacement ◽  
Bucket Foundation ◽  
Load Line ◽  
Soil Stress ◽  
Pressure Changes

The pile-bucket foundation is a new kind of foundation. In this paper, the ABAQUS software was used to analyze the soil displacement field and the soil stress field surrounding of the pile-bucket foundation under the multi-cycle horizontal loading. Under the horizontal load, the active area of soil separated from the basics; the passive region takes the shape of a parabolic ring of soil wedge rotate failure surface. The maximum displacement was in the direction of horizontal load line on the surface of soil near the bucket. Horizontal and vertical soil pressure changes are concentrated under the surface of the soil near the bucket, and the maximum horizontal soil stress was in the deep soil around the bucket. There is a point of inflection between 1/3 and 1/2 of the pile into soil , and the soil pressure that upper and lower the point increased in the opposite direction. The horizontal forced resistance of the foundation mainly distributed under the bucket and 1/2 of the pile into soil .The conclusion could provide a reference basis for the analysis of bearing mechanism and destruction characters of pile-bucket foundation

Dynamic Response Analysis for the Solar-Powered Aircraft Composite Wing Panel with Viscoelastic Damping Layer

2011 ◽  
Vol 105-107 ◽  
pp. 491-494
Author(s):  
Tie Jun Liu ◽  
Yong Zhang ◽  
Gang Li ◽  
Feng Hui Wang
Keyword(s):  
Dynamic Response ◽  
Vibration Isolation ◽  
Viscoelastic Damping ◽  
Response Analysis ◽  
Aircraft Wing ◽  
Maximum Displacement ◽  
Displacement Response ◽  
Stiffened Structures ◽  
Solar Powered ◽  
Wing Panel

In design of solar powered aircraft wing panel, vibration properties of wing panel should be considered, especially for the peak value of dynamic response. In this research, a viscoelastic damping layer is built for vibration isolation, wing panel finite element models of stiffened and no-stiffened structures base on fiber-reinforced laminates with damping layer in the middle are built. Natural frequency and displacement response are analyzed with different thickness of damping layer and structures. Result shows natural frequencies decrease as thickness increased, and that of laminates are lower than stiffened structure. The maximum displacement response value decreased when thickness increased and that of laminates is higher than structured with stiffer. The presented work is helpful for type selection and designing of solar powered aircraft wing panel.

The Optimization of Damping of Four Configurations of a Vibrating Uniform Beam

1963 ◽  
Vol 85 (3) ◽  
pp. 259-264 ◽  
Author(s):  
Alex Henney ◽  
J. P. Raney
Keyword(s):  
Digital Computer ◽  
Empirical Formula ◽  
Response Curves ◽  
Maximum Displacement ◽  
Single Degree Of Freedom ◽  
Displacement Response ◽  
Single Degree ◽  
Uniform Beam ◽  
Computer Response ◽  
Analytical Expressions

Approximate analytical expressions for optimum damping for four configurations of forcing and damping a uniform beam were evaluated and the displacement responses for optimum damping values obtained from these expressions were calculated by a digital computer. It was found that the responses were accurately optimized. The sensitivity of maximum displacement response to deviation from optimum damping was investigated, but no analytical expressions relating change to deviation were obtained. An empirical formula, based upon consideration of the response of the beam as a single-degree-of-freedom system, was shown to be a good approximation of results obtained from the computer response curves. The four configurations investigated were relatively insensitive to changes in damping from optimum.

Analysis of Wind-Induced Vibration Control of Long-Span Space Structure

2011 ◽  
Vol 255-260 ◽  
pp. 1204-1208
Author(s):  
Zhi Qiang Zhang ◽  
Yan Chen ◽  
Guan Xing Su ◽  
Xing Gang Zhu
Keyword(s):  
Wind Tunnel Test ◽  
Time History ◽  
Space Structure ◽  
Wind Pressure ◽  
Filter Method ◽  
Maximum Displacement ◽  
Displacement Response ◽  
Long Span ◽  
History Of ◽  
Wind Induced Vibration

Based on improved linear regression filter method presented by Iwatani and wind tunnel test data, the program simulated 3-D time history of fluctuating wind pressure of Fuzhou Strait International Conference and Exhibition Center considering spatial correlation of wind loads, which is consistent with the object power spectrum .The simulation result is used in nodes of the structure to analyze response of wind-induced vibration. Analytical results show it has the maximum displacement response in 0° wind direction .Due to the installation of TMD, node displacement response of roof truss is reduced from 44.14mm to 33.16mm, with best reduction 26.67%.

scholarly journals Study of G + 20 Storey RC Framed Structure With Structural Steel Braces

2021 ◽  
pp. 211-223
Author(s):  
Bhavik R Suthar ◽  
Dr. Indrajit N. Patel ◽  
Prof. Vimlesh V. Agrawal ◽  
Prof. Vishal Patel
Keyword(s):  
Seismic Performance ◽  
Great Influence ◽  
Horizontal Load ◽  
Base Shear ◽  
Maximum Displacement ◽  
Considerable Contribution ◽  
Shape Irregularity ◽  
The One ◽  
Bracing System ◽  
Seismic Forces

Earthquake is that the one of the main disaster better-known to mankind since a few years, there has been a considerable contribution from earthquake engineers for the protection of the structure. one amongst the alternatives to reduce the harm caused due to the earthquake is adopting steel bracings within the structure. These members is used within the building as a horizontal load resisting system to enhance the stiffness of the frame for seismic forces. this study is based on analysis of RC framed G+20 storey structure with steel braces using ETABS software. This study is conducted to know the behaviour of the various bracing system for different direction of the building. The building is situated in ZONE 5. The performance of building is studied in terms of Base shear, Base moment, Storey shear, Storey moment, Maximum displacement, Drift. The results of the analysis are compared and it was found that the seismal behavior of braced framed building is improved as compared to unbraced framed building. it had been also found that the various arrangements of bracing systems have great influence on seismic performance of the building. In this study considering the shape irregularity, mass irregularity.

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