Fracture of Reinforcing Steels in Concrete Structures Damaged by Alkali-Silica Reaction-Field Survey, Mechanism and Maintenance-:-Field Survey, Mechanism and Maintenance-

スポンサーリンク

概要

• 論文の詳細を見る

• Instances of reinforcing steel fracture in concrete structures damaged by the alkali-silica reaction (ASR) have been discovered recently in Japan. As long as reinforcing steels are not broken due to ASR-caused expansion, the safety of a structure is considered not to be seriously compromised. However, the safety of a structure becomes questionable when the confinement of concrete becomes degraded due to the fracture of reinforcing steel bars. Therefore, it is important to clarify the mechanism of the fracture of reinforcing steel bars and develop methods for detecting steel bar fractures and strengthening concrete structures damaged by ASR.This paper describes the fracture of reinforcing steels in the case of concrete structures damaged by ASR in the Kansai area in Japan. It then introduces the results of investigation on the fracture mechanism, nondestructive testing methods, and repair and strengthening methods for damaged concrete structures.

• 公益社団法人 日本コンクリート工学会の論文

著者

• MIYAGAWA Toyoaki

  Department of Civil Engineering at Kyoto University

• Sasaki Kazunori

  Hanshin Expressway Co. Ltd., Japan.

• Seto Kaoru

  Osaka National Highway Works Office, Ministry of Land, Infrastructure and Transport, Japan.

• Mikata Yasuhiro

  Department of Civil Engineering and Urban Design, Osaka Institute of Technology, Japan.

• Kuzume Kazuhiro

  Kokusai Structural Engineering Corp., Japan.

• Minami Toshikazu

  Shinko Wire Co. Ltd., Japan.

関連論文

• METHODS FOR EVALUATING RHEOLOGICAL COEFFICIENTS OF SELF-COMPACTING CONCRETE BY NUMERICAL ANALYSIS
• STRESS-STRAIN BEHAVIOR OF CONCRETE CONFINED BY FRP
• Analysis on the Flexural Behavior of Externally Prestressed Beam with Large Eccentricity by the Method of Moment-Curvature Relationship
• FLEXURAL BEHAVIOR OF RC MEMBER STRENGTHENED WITH LONGITUDINAL PRESTRESSED CONCRETE JACKETING
• Fracture of Reinforcing Steels in Concrete Structures Damaged by Alkali-Silica Reaction-Field Survey, Mechanism and Maintenance-:-Field Survey, Mechanism and Maintenance-

スポンサーリンク