Zobrazeno 1 - 10
of 13
pro vyhledávání: '"515.1"'
Publikováno v:
京都大学防災研究所年報. B. 41(B-2):367-382
海域をまたぐ中小規模の橋梁では, 橋脚に波が打上がり橋面へ飛沫が降り注ぐという間題が生じることがある.本研究は, 橋脚への波の打上げ特性を明らかにし, その軽減対策を検討したも
Autor:
MATSUMOTO, Masaru, ITO, Yuichi, YAGI, Tomomi, TOKUMOTO, Shinichi, BAEK, Byung-gi, SHIRATO, Hiromichi, SHIRAISHI, Naruhito
Publikováno v:
京都大学防災研究所年報. B. 34(B-1):57-69
The mechanism of vortex-induced oscillation of bluff section is closely related with the instability of separated shear around its body. The shear layer can be easily stimulated by self-movement of the body or external disturbance such as flow pertur
Autor:
MATSUMOTO, Masaru, SHIRAISHI, Naruhito, SHIRATO, Hiromichi, IZUMI, Chitoshi, TSUKIYAMA, Yuji, MISAWA, Akira
Publikováno v:
京都大学防災研究所年報. B. 31(B-1):287-302
In this study, human-response against bridge vibration was investigated in the frequencyrange 0.2 Hz-1.0 Hz and in the amplitude range 1.0 cm-10.0 cm in order to evaluate serviceabilitylevel for pedestrian to the bridge vibration. Approximately 100 p
Publikováno v:
京都大学防災研究所年報. B. 32(B-1):453-470
The wind characteristics which should be required for the estimation of wind-inducedfailure of bridge structures were discussed from the statistic and probabilistic point of view.Furthermore, the method for the evaluation of bridge reliability was de
Publikováno v:
京都大学防災研究所年報. B. 32(B-2):951-961
In order to anticipate various aspects of local scouring phenomena around abridge pier, a dynamic and flexible model will be necessary which reflects theessence of the phenomena. Such a model was constructed considering tractive forcedue to horseshoe
Publikováno v:
京都大学防災研究所年報. B. 29(B-1):211-227
This study aims to clarify the aerodynamic effects of the "corner cut" for the sake of themitigation of aerodynamic instability of the tower like structure. Two-dimensional rectangularcylinders with various cutting of their corners were tested in a w
Autor:
KAMEDA, Hiroyuki, KITA, Hiroyuki
Publikováno v:
京都大学防災研究所年報. B. 32(B-2):49-82
The effect of vehicle loading on the seismic load of highway bridges isdiscussed. Urban expressways that are subjected to frequent traffic congestions areof primary concern. For this purpose, it is assumed that a bridge is loaded withheavy trucks at
Autor:
IMAMOTO, Hirotake, OHTOSHI, Kunio
Publikováno v:
京都大学防災研究所年報. B. 26(B-2):489-501
Hydraulic characteristics around various types of flow obstructions is a problem of continuinginterest. Many investigators have published results on the various aspects of this problem inthe past, particularly on the local scour around bridge piers.T
Publikováno v:
京都大学防災研究所年報. B. 18:395-413
In this paper, the aerodynamic admittance or the dynamic lift function of long spannedbridges with plate like structural section are discussed, and the deflectional response of afew sectional models due to random vertical gust is analized by numerica
Autor:
MATSUMOTO, Masaru, SHIRAISHI, Naruhito, SHIRATO, Hiromichi, MASHIMO, Yoshiaki, YUKAWA, Masayuki, HIRAI, Shigeto
Publikováno v:
京都大学防災研究所年報. B. 31(B-1):303-316
In this study, the effects of turbulence on galloping were investigted from the frequencyeffect of turbulence point of view. Two 2-D rectangular cylinders with slenderness ratios 1 (B/D=1, B: chord length, D: height of section) and 2 (B/D=2) were use