scholarly journals STUDY OF INFLUENCE ON SLIP COEFFICIENT OF HIGH STRENGTH BOLTED FRICTION TYPE JOINTS BY PAINTING CONDITION AND EXPOSURE TERM

2017 ◽  
Vol 73 (1) ◽  
pp. 40-53
Author(s):  
Jun MURAKOSHI ◽  
Mamoru SAWADA ◽  
Kiyonori YAMASHINA ◽  
Takashi YAMAGUCHI ◽  
Daisaku ISHIHARA
Keyword(s):  
High Strength ◽  
Slip Coefficient

Exploration of novel faying surface treatment for high-strength frictional bolted joints to enhance its after-slip performance

2021 ◽  
Author(s):  
Hitoshi Moriyama ◽  
Ryo Sakura ◽  
Takashi Yamaguchi ◽  
Takai Toshikazu ◽  
Yuta Yamamoto
Keyword(s):  
Surface Treatment ◽  
Load Transfer ◽  
High Strength ◽  
Bolted Joints ◽  
Deformation Capacity ◽  
Slip Coefficient ◽  
Faying Surface ◽  
Treatment Concepts ◽  
Local Slip

<p>Welded joints is adopted rather than bolted joints for megastructure’s connections because the former can carry large force. However, the former has several problems, such as quality control of welding in situ, which the latter can solve. By contrast, as the load transfer ratio of each bolt becomes uneven proportionally to the number of bolts, local slip around extreme bolts occurs before the whole slip. Extreme bolts to which a large shear force is applied will break before other bolts. For utilizing the strength of all bolts, the problem is solved by improving shear deformation capacity in faying surface with novel surface treatment. Here, the treatment concepts were explored, and the coating’s effectiveness was evaluated through friction tests. The deformation capacity can be twice or more than that of conventional treatment, and the slip coefficient doesn’t depend on contact pressure. These features have the advantage to give stable slip behaviour.</p>

EXPERIMENTAL STUDY ON SLIP COEFFICIENT OF HIGH STRENGTH BOLTED JOINT WITH METAL SPRAYED CONTACT SURFACE

2015 ◽  
Vol 2 (1) ◽  
Author(s):  
Yusuke Nakanishi ◽  
Kunitaro Hashimoto ◽  
Yasuo Suzuki ◽  
Kunitomo Sugiura
Keyword(s):  
Steel Structures ◽  
High Strength ◽  
Treatment Method ◽  
Construction Cost ◽  
Bolted Joints ◽  
Maintenance Cost ◽  
Bolted Joint ◽  
Slip Coefficient ◽  
Surface Conditions ◽  
Contact Surfaces

There are several ways to reduce the number of bolts of frictional bolted joints from the viewpoint of the construction cost and the maintenance cost for steel structures. For example, there are the ways which are strengthening the material of bolts, or increasing the slip coefficient. This study is focused on the slip coefficient with metal thermal sprayed contact surfaces. The objective of this study is to investigate the effects of different surface conditions on the slip coefficient. Therefore, slip tests were conducted in consideration of 9 patterns of surface treatment method (3 kinds of thickness, 3 kinds of material of sprayed metal).

Experimental study on mechanical behavior of combined joint using adhesives and high strength bolts

2021 ◽  
Author(s):  
Takuya Kamino ◽  
Takashi Fujimoto ◽  
Takashi Yamaguchi ◽  
Yasumoto Aoki ◽  
Shinsuke Akamatsu ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Shear Strength ◽  
Design Method ◽  
High Strength ◽  
Corrosion Damage ◽  
Epoxy Adhesive ◽  
Steel Bridge ◽  
Slip Coefficient ◽  
Constraint Effect ◽  
Slip Resistance

<p>As a repair for corrosion damage of a steel bridge, a patch plate-repair using high strength bolts is generally applied. This method requires the surface of the damaged corroded part filled with an epoxy adhesive flat. The load transferring mechanism and slip resistance of such a combined joint with adhesives and high strength frictional bolts aren't clear. Since the shear strength of an adhesive might be increased due to constraint by the bolt axial force, the combined joint's slip resistance would be increased. To clarify the mechanical properties of the combined joint and to propose a new design method for such joints, two experiments have been conducted. The first was a frictional force experiment for adhesive specimens subjected to contact pressure on the surface to evaluate the constraint effect of adhesive on shear strength quantitatively. The last one is a slippage experiment for the combined joints to evaluate its slip coefficient.</p>

Evaluation of slip coefficient of slip critical joints with high strength bolts

2009 ◽  
Vol 32 (4) ◽  
pp. 477-488 ◽  
Author(s):  
Hwan-Seon Nah ◽  
Hyeon-Ju Lee ◽  
Kang-Seok Kim ◽  
Woo-Bum Kim
Keyword(s):  
High Strength ◽  
Slip Coefficient

scholarly journals SLIP COEFFICIENT FOR HIGH-STRENGTH BOLTED FRICTIONAL JOINTS WITH ROUGHENED STEEL SURFACE AND INORGANIC ZINC-RICH PAINTED SURFACE

2015 ◽  
Vol 3 (1) ◽  
pp. 19-32 ◽  
Author(s):  
Yoshio TAMBA ◽  
Shinya YUKITO ◽  
Satoshi KIMURA ◽  
Takashi YAMAGUCHI ◽  
Kunitomo SUGIURA
Keyword(s):  
Steel Surface ◽  
High Strength ◽  
Slip Coefficient ◽  
Painted Surface ◽  
Frictional Joints

scholarly journals SLIP COEFFICIENT AND CONTACT SURFACE CONDITION OF FRICTION TYPE OF HIGH STRENGTH BOLTED CONNECTIONS

2008 ◽  
Vol 64 (1) ◽  
pp. 48-59 ◽  
Author(s):  
Takeshi MORI ◽  
Kuniaki MINAMI ◽  
Susumu INOKUCHI ◽  
Takashi YAMAGUCHI
Keyword(s):  
Contact Surface ◽  
Surface Condition ◽  
High Strength ◽  
Slip Coefficient ◽  
Bolted Connections

Slip Coefficient in High-Strength Bolt Joints Coated with Corrosion-Resistant Zn/Al Metal Spray Method

2011 ◽  
Vol 26 (1) ◽  
pp. 14-21 ◽  
Author(s):  
T. S. Kim ◽  
H. S. Lee ◽  
J. H. Yoo ◽  
S. H. Tae ◽  
S. H. Oh ◽  
...  
Keyword(s):  
High Strength ◽  
Slip Coefficient ◽  
Corrosion Resistant ◽  
High Strength Bolt ◽  
Spray Method ◽  
Metal Spray
Sign in / Sign up

Export Citation Format

Share Document