A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
METHOD TO DETECT DAMAGE/DEFORMATION OF STRUCTURE WITH CFRP TENDON FOR INTRODUCING PRE-STRESS AND CFRP TENDON
To provide a method which can monitor in real time damage and deformation of a structure such as a PC girder, to detect damage/deformation of the structure, and a CFRP tendon.SOLUTION: A CFRP tendon 2 for introducing pre-stress is provided under a PC girder 1 in the span direction of the PC girder 1. The CFRP tendon 2 is provided as a tendon to introduce pre-stress to the PC girder 1 and introduces a tension force that satisfies a reference value. An electric resistance of CFRP tendon 2 that changes in accordance with distortion of the CFRP tendon 2 is measured. From this measurement value of the electric resistance and a preset electric resistance of the CFRP tendon 2, damage/deformation of a PC steel 4 provided inside the PC girder 1 is detected.SELECTED DRAWING: Figure 1
【課題】ＰＣ桁等の構造物の損傷および変形をリアルタイムでモニタリングできる構造物の損傷・変形を検知する方法及びＣＦＲＰ緊張材を提供する。【解決手段】ＰＣ桁１の下面にプレストレス導入用のＣＦＲＰ緊張材２をＰＣ桁１のスパン方向に設置する。ＣＦＲＰ緊張材２は、ＰＣ桁１にプレストレスを導入する緊張材として設置し、基準値を満足させる緊張力を導入する。ＣＦＲＰ緊張材２のひずみに応じて変化するＣＦＲＰ緊張２の電気抵抗を測定する。当該電気抵抗の測定値と予め設定されたＣＦＲＰ緊張材２の電気抵抗値からＰＣ桁１内に設置されたＰＣ鋼材４の損傷・変形を検知する。【選択図】図１
METHOD TO DETECT DAMAGE/DEFORMATION OF STRUCTURE WITH CFRP TENDON FOR INTRODUCING PRE-STRESS AND CFRP TENDON
To provide a method which can monitor in real time damage and deformation of a structure such as a PC girder, to detect damage/deformation of the structure, and a CFRP tendon.SOLUTION: A CFRP tendon 2 for introducing pre-stress is provided under a PC girder 1 in the span direction of the PC girder 1. The CFRP tendon 2 is provided as a tendon to introduce pre-stress to the PC girder 1 and introduces a tension force that satisfies a reference value. An electric resistance of CFRP tendon 2 that changes in accordance with distortion of the CFRP tendon 2 is measured. From this measurement value of the electric resistance and a preset electric resistance of the CFRP tendon 2, damage/deformation of a PC steel 4 provided inside the PC girder 1 is detected.SELECTED DRAWING: Figure 1
【課題】ＰＣ桁等の構造物の損傷および変形をリアルタイムでモニタリングできる構造物の損傷・変形を検知する方法及びＣＦＲＰ緊張材を提供する。【解決手段】ＰＣ桁１の下面にプレストレス導入用のＣＦＲＰ緊張材２をＰＣ桁１のスパン方向に設置する。ＣＦＲＰ緊張材２は、ＰＣ桁１にプレストレスを導入する緊張材として設置し、基準値を満足させる緊張力を導入する。ＣＦＲＰ緊張材２のひずみに応じて変化するＣＦＲＰ緊張２の電気抵抗を測定する。当該電気抵抗の測定値と予め設定されたＣＦＲＰ緊張材２の電気抵抗値からＰＣ桁１内に設置されたＰＣ鋼材４の損傷・変形を検知する。【選択図】図１
METHOD TO DETECT DAMAGE/DEFORMATION OF STRUCTURE WITH CFRP TENDON FOR INTRODUCING PRE-STRESS AND CFRP TENDON
プレストレス導入用のＣＦＲＰ緊張材を備えた構造物の損傷・変形を検知する方法およびＣＦＲＰ緊張材
TOYODA YUSUKE (author) / KUZUME KAZUHIRO (author) / KOBAYASHI AKIRA (author) / TATEISHI MASAHIRO (author) / HIDEKUMA YUYA (author) / HASEGAWA TAKESHI (author) / TATSUGAMI HISAO (author)
2019-06-27
Patent
Electronic Resource
Japanese
IPC:
G01B
MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS
,
Messen der Länge, der Dicke oder ähnlicher linearer Abmessungen
/
E01D
BRIDGES
,
Brücken
/
E04G
SCAFFOLDING
,
Baugerüste
/
G01N
Untersuchen oder Analysieren von Stoffen durch Bestimmen ihrer chemischen oder physikalischen Eigenschaften
,
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
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