Cause identification of the fracture in steel pipe column of a pedestrian bridge and its retrofitting

Chitoshi Miki, Kiyoshi Ono, Koichi Yokoyama, Takao Harada

研究成果: Article

抜粋

A Serious fracture that extended halfway through the circumference of a steel pipe column was discovered in a pedestrian bridge across a prefectural road. A lot of pedestrian bridges have been designed and constructed according to the standard specifications. Therefore, there is a possibility that pedestrian bridges whose structural details are the same as those of fractured pedestrian bridges in this paper may exist. It is very important to identify the cause of the fracture for preventing the same failure mode. In order to identify the cause of the fracture, observation of crack surface, SEM observation, material property tests, measurement of strain and calculating histogram of the stress range and the frequency were carried out. Moreover, the fractured steel pipe column of the pedestrian bridge was retrofitted by applying bolted splice rings and plates.

元の言語English
ページ(範囲)618-629
ページ数12
ジャーナルDoboku Gakkai Ronbunshuu A
65
発行部数3
DOI
出版物ステータスPublished - 2009 12 1

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction
  • Mechanics of Materials
  • Mechanical Engineering

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