Seismic Behaviour Experimental Study of the D-Type Energy Dissipating Eccentrically Brace

2011 ◽  
Vol 255-260 ◽  
pp. 2414-2420
Author(s):  
Xiu Zhen Pan ◽  
Ji Ping Hao ◽  
Jie Gao
Keyword(s):  
Experimental Data ◽  
Experimental Study ◽  
Cyclic Loading ◽  
Steel Frame ◽  
Lateral Stiffness ◽  
Input Energy ◽  
Seismic Behaviour ◽  
Frame System ◽  
The Cost ◽  
New System

Because the repairing work of beam and floor after earthquake were great, and the cost were higher, the generalize application of eccentrically braced steel frame were limited. A new braced steel frame system was suggested, which was energy dissipating eccentrically brace. The experimental data of new and conventional D-type eccentrically braced steel frame system were achieved by two specimens under cyclic loading. Results indicated that the new system could put off yielding, reduce earthquake input energy and breakage of the link, reduce repairing load after earthquake, and have preferable ductility and enough lateral stiffness. The new braced steel frame system which had gained patent of invention in Chinese was practical and costly that it could be applied in present project.

Lattice Light Steel Frame System and Application

2011 ◽  
Vol 105-107 ◽  
pp. 1110-1113
Author(s):  
Bo Ding ◽  
Huan Qing Jiang ◽  
Hong Xia Wan ◽  
Feng Zhang
Keyword(s):  
High Speed ◽  
Design Method ◽  
Calculation Model ◽  
Steel Frame ◽  
Calculation Results ◽  
Frame System ◽  
Practical Engineering ◽  
Steel Consumption ◽  
New Type ◽  
New System

Lattice light steel frame is a new type of structural system, combining general steel framework which is composed of lattice column and lattice beam with lattice light steel keel of the partitions and floors, the system takes full advantages of both structural systems, with high speed construction, less steel consumption, good earthquake-resistance etc., and possesses good prospects. The paper describes the system construction approach and the characteristics of lattice light steel frame system, and provides a project example of a villa. The design method and calculation model of the project are presented. Calculation results meet the specifications’ requirements, proving the new system can be applied to practical engineering. The paper gives guidance for application and research of this new system.

Experimental Study of a Prefabricated Steel Frame System with Buckling-Restrained Braces

2020 ◽  
pp. 1479-1489
Author(s):  
Yuan Xu ◽  
Hong Guan ◽  
Hassan Karampour ◽  
Yew-Chaye Loo ◽  
Xuejun Zhou
Keyword(s):  
Experimental Study ◽  
Steel Frame ◽  
Buckling Restrained Braces ◽  
Frame System

scholarly journals Experimental study on seismic performance of frame flat columns with high axial compression ratio

2020 ◽  
Vol 165 ◽  
pp. 04045
Author(s):  
Guojun Zhang
Keyword(s):  
Experimental Study ◽  
Cyclic Loading ◽  
Seismic Performance ◽  
Compression Ratio ◽  
Failure Process ◽  
Lateral Stiffness ◽  
Deformation Capacity ◽  
Axial Compression Ratio ◽  
Earthquake Force ◽  
Axial Compressive Ratio

When the lateral stiffness of the frame flat column is relatively small, the strength of the frame flat column is not enough to resist the large horizontal earthquake force and seriously deformed, which leads to the structure fail and could not work normally. In order to study the bearing capacity and the deformation capacity, experiments of three specimens of high axial compressive ratio under frequency cyclic loading were conducted, in which the failure process were observed in detail and the failure mechanism of the specimens were researched, the failure type, the hysteretic characteristic were studied, and the effect of the axial compressive ratio, the ties type and the stirrup ratio on the ductility of the members were analysed.

HYSTERESIS CHARATERISTICS OF SQUARE CFT COLUMNS SUBJECTED TO AXIAL FORCE AND BENDING MOMENT

2018 ◽  
Vol 5 (2) ◽  
Author(s):  
Kouta Jyouzaki ◽  
Masae Kido
Keyword(s):  
Experimental Data ◽  
Experimental Study ◽  
Cyclic Loading ◽  
Axial Force ◽  
Rotation Angle ◽  
Bending Moment ◽  
Thickness Ratio ◽  
Skeleton Curve ◽  
Force Ratio ◽  
Unloading Stiffness

Hysteresis characteristics of concrete filled steel tubular columns have been proposed. However, it has not been clarified if the skeleton curve could be applied for slender columns, and there are few studies about the unloading stiffness of the hysteresis loop. The purpose of this study is to compare the skeleton curves of square CFT columns, which have been proposed by the moment-rotation angle relationships and the experimental data by the previous research. The relationship between the initial stiffness obtained by the theoretical calculation and the unloading stiffness obtained by the experimental study are shown. Also the effects of the axial force ratio and the width-thickness ratio on the above mentioned relationships are discussed. The loading condition of the experimental study is monotonic and cyclic loading. It is found that the skeleton curve evaluates conservatively the bending moment-rotation angle relationships obtained by the test in both loading conditions, except for the widththickness ratio 43 specimen with cyclic loading. The ratio of unloading stiffness exKr obtained from the experimental data and calculated theoretical stiffness K was shown. The effect of the axial force ratio on the exKr/K was observed when the rotation chord angle was more than 1% and the width-thickness ratio increased as exKr/K decreased.

EXPERIMENTAL STUDY OF THE KINEMATIC PARAMETERS OF MOVEMENT OF CARS FORCED IDLE MOTION

2018 ◽  
pp. 52-57
Author(s):  
Ivelin Kostov
Keyword(s):  
Experimental Data ◽  
Experimental Study ◽  
Experimental Research ◽  
Kinematic Parameters ◽  
Research Results ◽  
Software Product

In the work brought some experimental data of kinematic parameters of movement of cars forced idle, as the software product was used to diagnose 900 ATS, which recorded kinematic parameters of vehicle. On the basis of the conducted experimental research results are shown tabulated and analysed.

An Experimental Test of the Effects of a Monetary Incentive on Cooperation Rates and Data Collection Costs in Central-Location Interviewing

1983 ◽  
Vol 20 (4) ◽  
pp. 439-442 ◽  
Author(s):  
Frederick Wiseman ◽  
Marianne Schafer ◽  
Richard Schafer
Keyword(s):  
Experimental Study ◽  
Data Collection ◽  
Experimental Test ◽  
Monetary Incentive ◽  
Willingness To Participate ◽  
Central Location ◽  
The Cost ◽  
Collection Costs

The authors describe an experimental study designed to determine the effects of a monetary incentive on (1) a potential respondent's decision to participate in a central-location interview, (2) that person's expressed willingness to participate in a future survey, and (3) the cost of data collection.

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