Theoretical and experimental study on a new combined mild steel damper

2016 ◽  
pp. 461-464
Author(s):  
Jia-Chang Wang ◽  
Lin-Zhi Yang ◽  
Feng-Fan Wang ◽  
Ming Wei
Keyword(s):  
Experimental Study ◽  
Mild Steel ◽  
Steel Damper

scholarly journals EXPERIMENTAL STUDY ON CHARACTERISTICS OF STEEL DAMPER USED FOR SEISMIC ISOLATION SYSTEM

1996 ◽  
Vol 2 (2) ◽  
pp. 50-53
Author(s):  
Susumu OHTSUKA ◽  
Kunio HAYAKAWA ◽  
Masahumi MOTEKI ◽  
Mituru SUGISAWA
Keyword(s):  
Experimental Study ◽  
Seismic Isolation ◽  
Isolation System ◽  
Steel Damper

An Experimental Study on the Lateral Impact of Fully Clamped Mild Steel Pipes

1992 ◽  
Vol 206 (2) ◽  
pp. 111-127 ◽  
Author(s):  
N Jones ◽  
S E Birch ◽  
R S Birch ◽  
L Zhu ◽  
M Brown
Keyword(s):  
Experimental Data ◽  
Experimental Study ◽  
Mild Steel ◽  
Failure Modes ◽  
Experimental Results ◽  
Lateral Impact ◽  
Drop Hammer ◽  
Steel Pipes ◽  
Scale Range ◽  
The Impact

This report presents some experimental data that were recorded from 130 impact tests on mild steel pipes in two drop hammer rigs. The pipes were fully clamped across a span which was ten times the corresponding outside pipe diameters which lie between 22 and 324 mm. All of the pipes except five had wall thicknesses of 2 mm approximately and were impacted laterally by a rigid wedge indenter at the mid span, one-quarter span or near to a support. The impact velocities ranged up to 14 m/s and caused various failure modes. Some comparisons between two sets of experimental results indicate that the laws of geometrically similar scaling are almost satisfied over a scale range of approximately five.

Experimental study on non-ferrous metals coating over mild steel using friction surfacing

2019 ◽  
Author(s):  
Sardar Jaspal Singh ◽  
U. Ashok Kumar ◽  
P. Laxminarayana ◽  
K. Kishore
Keyword(s):  
Experimental Study ◽  
Mild Steel ◽  
Friction Surfacing ◽  
Ferrous Metals ◽  
Non Ferrous Metals

Energy Consumption Performance Study of New Box-Shaped Hysteretic Damper

2014 ◽  
Vol 937 ◽  
pp. 531-536
Author(s):  
Chao Xu ◽  
Yong Feng Niu ◽  
Yong Xie Zhao
Keyword(s):  
Yield Strength ◽  
Mild Steel ◽  
Angular Size ◽  
Vertical Direction ◽  
Performance Study ◽  
Initial Stiffness ◽  
Web Openings ◽  
Yield Displacement ◽  
Steel Damper ◽  
The Stability

To the H-shaped Mild steel damper which has been applied to the market, this paper proposes the opening box dampers were made in material Q235 steel. Studied the influence of the angular size between Webs and vertical direction to the box-shaped Mild steel damper by FEM ABAQUS. The results indicated that under the same rate in the web openings, box dampers has the same yield displacement and hysteresis curves were fuller than H-shaped dampers. With the increase of web and vertical angles, the initial stiffness of the damper box steel and yield strength and yield stiffness of the damper would reduced, but all of these are larger than H-shaped steel dampers; Meanwhile, moment of inertia of box dampers’ two webs to Y-axis is larger , which greatly enhancing the stability of the outside plane to the damper, the larger Web angles, the stronger yield strength and the stability of the outside plane.

scholarly journals RESEARCH ON THE INFLUENCE OF MILD STEEL DAMPERS ON SEISMIC PERFORMANCE OF SELF-RESETTING PIER

2021 ◽  
Vol 30 (1) ◽  
Author(s):  
Mengqiang Guo ◽  
Yanli Shen
Keyword(s):  
Energy Consumption ◽  
Yield Strength ◽  
Mild Steel ◽  
Bearing Capacity ◽  
Axial Compression ◽  
Seismic Performance ◽  
Compression Ratio ◽  
Axial Compression Ratio ◽  
Steel Damper ◽  
The Impact

In order to improve the energy consumption capacity of the assembled self-resetting pier, the mild steel damper is added to the prefabricated self-resetting pier to form a prefabricated self- resetting pier with an external mild steel damper. Two sets of pier models were established by numerical simulation. On the basis of verifying the correctness of the traditional prefabricated self- resetting pier model, the two sets of pier models were subjected to low-cycle reciprocating loading to study the influence of the mild steel damper yield strength parameters and the pier axial compression ratio parameters on the seismic performance of the pier structure. The results show that compared with traditional prefabricated self-resetting piers, the hysteresis curve of self-resetting piers with mild steel dampers is fuller, and energy consumption and bearing capacity are greatly improved. With the increase of the yield strength of the mild steel damper, the energy consumption capacity will decrease when the loading displacement is less than 25mm, but the overall energy consumption capacity will increase. As the axial compression ratio of the pier column increases, the bearing capacity and energy consumption capacity of the structure increase significantly, but the impact is not obvious when the axial compression ratio exceeds 0.052.

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