A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
TENSION FORCE INTRODUCTION DEVICE
To provide a tension force introduction device capable of introducing tension force into a tendon with high accuracy.SOLUTION: A tension force introduction device 200 comprises a hydraulic jack 21 introducing tension force into a tendon 12, a hydraulic pump 22 supplying hydraulic pressure to the hydraulic jack 21, a hydraulic control device 24 controlling pump pressure which is the hydraulic pressure supplied from the hydraulic pump 22 to the hydraulic jack 21, a pump pressure measuring device 25 measuring pump pressure, displacement amount measuring devices 26A, 26B detecting the displacement amount of the tendon 12, and a computing unit calculating final tension pressure which is pump pressure required to introduce the tension force as a target into the tendon 12. The hydraulic control device 24 increases the pump pressure to the final tension pressure while repeating an increase step of increasing the pump pressure to prescribed interruption pressure in the process of introducing the tension force into the tendon 12 and an interruption step of stopping the increase of the pump pressure by the interruption pressure alternately, and the computing unit calculates the final tension force based on the pump pressure and the displacement amount.SELECTED DRAWING: Figure 1
【課題】緊張材に緊張力を精度よく導入できる緊張力導入装置を提供する。【解決手段】緊張材１２に緊張力を導入する油圧ジャッキ２１と、油圧ジャッキ２１に油圧を供給する油圧ポンプ２２と、油圧ポンプ２２から油圧ジャッキ２１に供給する油圧であるポンプ圧を制御する油圧制御装置２４と、ポンプ圧を測定するポンプ圧測定装置２５と、緊張材１２の変位量を検出する変位量測定装置２６Ａ、２６Ｂと、緊張材１２に目的とする緊張力を導入するために必要なポンプ圧である最終緊張圧力を算出する演算部と、を有し、油圧制御装置２４は、緊張材１２に緊張力を導入する過程で、ポンプ圧を予め定めた中断圧力まで上昇させる上昇ステップと、中断圧力でポンプ圧の上昇を停止する中断ステップと、を交互に繰り返し実施しながら、最終緊張圧力まで、ポンプ圧を上昇させ、演算部は、ポンプ圧および変位量に基づいて最終緊張圧力を算出する緊張力導入装置２００。【選択図】図１
TENSION FORCE INTRODUCTION DEVICE
To provide a tension force introduction device capable of introducing tension force into a tendon with high accuracy.SOLUTION: A tension force introduction device 200 comprises a hydraulic jack 21 introducing tension force into a tendon 12, a hydraulic pump 22 supplying hydraulic pressure to the hydraulic jack 21, a hydraulic control device 24 controlling pump pressure which is the hydraulic pressure supplied from the hydraulic pump 22 to the hydraulic jack 21, a pump pressure measuring device 25 measuring pump pressure, displacement amount measuring devices 26A, 26B detecting the displacement amount of the tendon 12, and a computing unit calculating final tension pressure which is pump pressure required to introduce the tension force as a target into the tendon 12. The hydraulic control device 24 increases the pump pressure to the final tension pressure while repeating an increase step of increasing the pump pressure to prescribed interruption pressure in the process of introducing the tension force into the tendon 12 and an interruption step of stopping the increase of the pump pressure by the interruption pressure alternately, and the computing unit calculates the final tension force based on the pump pressure and the displacement amount.SELECTED DRAWING: Figure 1
【課題】緊張材に緊張力を精度よく導入できる緊張力導入装置を提供する。【解決手段】緊張材１２に緊張力を導入する油圧ジャッキ２１と、油圧ジャッキ２１に油圧を供給する油圧ポンプ２２と、油圧ポンプ２２から油圧ジャッキ２１に供給する油圧であるポンプ圧を制御する油圧制御装置２４と、ポンプ圧を測定するポンプ圧測定装置２５と、緊張材１２の変位量を検出する変位量測定装置２６Ａ、２６Ｂと、緊張材１２に目的とする緊張力を導入するために必要なポンプ圧である最終緊張圧力を算出する演算部と、を有し、油圧制御装置２４は、緊張材１２に緊張力を導入する過程で、ポンプ圧を予め定めた中断圧力まで上昇させる上昇ステップと、中断圧力でポンプ圧の上昇を停止する中断ステップと、を交互に繰り返し実施しながら、最終緊張圧力まで、ポンプ圧を上昇させ、演算部は、ポンプ圧および変位量に基づいて最終緊張圧力を算出する緊張力導入装置２００。【選択図】図１
TENSION FORCE INTRODUCTION DEVICE
緊張力導入装置
KASAHARA REI (author) / NISHINO MOTOYASU (author) / MATSUBARA YOSHIYUKI (author) / MASAKAWA HIROKI (author) / HAMAOKA KOJI (author) / IKEDA MICHIHARU (author) / AMAYA KIMIHIKO (author) / KURIHARA YUKI (author) / YAMADA KOJI (author)
2022-06-30
Patent
Electronic Resource
Japanese
TENSION FORCE MEASURING APPARATUS AND TENSION FORCE MEASURING METHOD FOR GROUND ANCHOR
| European Patent Office | 2018
Steel tension introduction system using tension control shaft
| European Patent Office | 2024