scholarly journals METHOD OF DETERMINING COEFFICIENT OF SUBGRADE REACTION BASED ON HORIZONTAL LOADING TEST OF PILE

2004 ◽  
pp. 41-54
Author(s):  
Eiki YAMAGUCHI ◽  
Yoshikatsu NANNO ◽  
Yoshiaki KIKUCHI ◽  
Yoshinobu KUBO
Keyword(s):  
Subgrade Reaction ◽  
Loading Test ◽  
Horizontal Loading

scholarly journals NON-LINEAR BEHAVIOR OF PILE GROUP-SOIL SYSTEM BASED ON HORIZONTAL LOADING TEST SUBJECT TO LARGE DISPLACEMENT

2007 ◽  
Vol 72 (614) ◽  
pp. 45-52 ◽  
Author(s):  
Takashi KURATA ◽  
Hisatoshi KASHIWA ◽  
Yasuhiro HAYASHI ◽  
Shuji TAMURA ◽  
Keiichiro SUITA
Keyword(s):  
Pile Group ◽  
Test Subject ◽  
Large Displacement ◽  
Loading Test ◽  
Soil System ◽  
Horizontal Loading ◽  
Linear Behavior ◽  
Non Linear

Repairing and Recovering Structural Performance of Earthen Walls Used in Japanese Dozo-Style Structures After Seismic Damage

2018 ◽  
Vol 13 (7) ◽  
pp. 1333-1344
Author(s):  
Hajime Yokouchi ◽  
Yoshimitsu Ohashi ◽  
◽  
Keyword(s):  
Structural Performance ◽  
Horizontal Force ◽  
Loading Test ◽  
Surrounding Environment ◽  
Horizontal Loading ◽  
Survey Results ◽  
Loading Tests ◽  
Kanto Region ◽  
Offshore Earthquake ◽  
Sound Condition

Several traditional building group districts exist in Japan as a system for preserving the remaining historical villages and townscapes of the country, along with their surrounding environment. In the northern Kanto region of Japan, there remain examples of many dozo-style structures called “Dozo-dukuri,” forming a distinctive historical townscape. In the 2011 Tohoku Region Pacific Offshore Earthquake, the traditional townscapes and dozo-style structures of the Kanto region were seriously damaged. When restoring the walls of damaged dozo-style structures to a sound condition, demolishing and reconstructing all the mud requires considerable labor; moreover, few modern artisans can construct mud walls. However, if there was a method that could recover the structural performance of the walls immediately via partial repair, the restoration of the walls could again become economical. Therefore, in this study, we first surveyed the specifications of mud walls in the northern Kanto region. Then, we performed horizontal loading tests on full-scale walls produced according to the survey results to determine the structural performance of walls under a horizontal force, e.g., an earthquake. Further, a test specimen damaged by a horizontal force was repaired, and a horizontal loading test was performed again. The results elucidated the structural performance recoverability obtained by the proposed repair method.

scholarly journals A REVIEW OF p-y RELATION FOR SINGLE PILES BASED ON FIELD HORIZONTAL LOADING TEST DATA

2011 ◽  
Vol 17 (35) ◽  
pp. 95-100
Author(s):  
Nao YOSHIKAWA ◽  
Yasutsugu SUZUKI ◽  
Koichi KOBAYASHI ◽  
Shigeo KANAI ◽  
Yukio ABE
Keyword(s):  
Test Data ◽  
Loading Test ◽  
Horizontal Loading ◽  
Single Piles

scholarly journals Estimating an empirical equation connecting subgrade reaction modulus with cone penetration test for sandy soils

2021 ◽  
Vol 9 (2) ◽  
pp. 001-008
Author(s):  
Abdelaziz Ahmed Bohagr ◽  
Ghassan Ahmed El gehani ◽  
Mohammed Mahmoud Boudejaja ◽  
Mustafa M Amami
Keyword(s):  
Sandy Soils ◽  
Cone Penetration Test ◽  
Shape Effect ◽  
Subgrade Reaction ◽  
Penetration Test ◽  
Cone Penetration ◽  
Loading Test ◽  
Reaction Coefficient ◽  
Tip Resistance ◽  
Load Tests

In geotechnical engineering, the coefficient of subgrade reaction is regarded as one of the most important parameters used for describing the interaction of soil and structure as well as describing some soil characteristics, subgrade reaction coefficient can be calculated theoretically using many different formulas, laboratory via specific well-known tests, and in site through field plate loading test. On the other hand, the cone penetration test is one of the most frequently used field tests to investigate the soil. The lately carried out researches showed a good relation between the subgrade coefficient and the tip resistance collected from the CPT, but the results obtained from the proposed method are still doubtable. In this paper, fifteen plate load tests and thirty CPTs, already collected for private site investigation project, have been used for finding the best fit equation connecting the subgrade reaction coefficient Ks with the tip resistance qc. The finds of the established equation have been compared extensively with those of other well-known related equations. The results show the ability of the concluded equation to get Ks results in the acceptable range of sandy soils. However, the depth and shape effect on the suggested formula need further investigations since all the plate load tests in this project have been carried out on the soil surface with a 45 cm diameter circular plate.

scholarly journals PROPOSAL OF STRUCTURAL SYSTEM OF DOUBLE WOOD SIDING WALL AND HORIZONTAL LOADING TEST(Architectural Planning and Design)

2006 ◽  
Vol 12 (23) ◽  
pp. 315-320 ◽  
Author(s):  
Mahito NAKAZONO ◽  
Naotoshi FUJI ◽  
Shinji IWATA ◽  
Kazuya BONKOBARA ◽  
Eiichi INAI ◽  
...  
Keyword(s):  
Structural System ◽  
Loading Test ◽  
Planning And Design ◽  
Horizontal Loading ◽  
Architectural Planning

REINFORCEMENT METHOD OF COMPOSITE SEISMIC RESISTANT WALL BY STRUCTURAL PLYWOOD AND STEEL MEMBERS

2021 ◽  
Vol 8 (1) ◽  
Author(s):  
Seine Kono ◽  
Haruka Kataoka ◽  
Takumi Ito
Keyword(s):  
Mechanical Properties ◽  
Plane Deformation ◽  
Horizontal Direction ◽  
Loading Test ◽  
Structural Wall ◽  
Steel Columns ◽  
Horizontal Loading ◽  
Steel Members ◽  
Seismic Resistant ◽  
Out Of Plane

This is a study of a composite structural wall of wood and steel, in which two steel columns are sandwiched between two plywoods with a thickness of 12 mm. Previous studies have shown that plywood undergoes out-of-plane deformation that interferes with the usability of the building. Therefore, a horizontal loading test was conducted with the position of the bolt that fastens the plywood as a parameter, and out-of-plane deformation and destructive properties were examined. Furthermore, in order to suppress out-of-plane deformation of plywood, we proposed a new reinforcement method using a steel member with a thickness of 3.2 mm. Also, its effect was verified experimentally. As a result of experiments with four types of bolt layouts, the specimen with bolt layout close to center presented small out-of-plane deformation, and each bolt layout effected the mechanical properties each other. The out-of-plane reinforcement was effective for bolt layouts that were long in the horizontal direction.

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