Abstract:
시설물의이상거동을계측하는다수의계측모듈이대화기능(Interactive Function), 지능기능(Intelligence Function) 및임무기능(Duty Function)을포함하는다기능(Multi-Function)을수행하여계측데이터및 안전진단결과를제공하고, 다기능계측모듈각각으로부터계측된여러감시결과를종합하여의사결정을수행함으로써시설물안전진단에대한의사결정의신뢰도를향상시킬수 있고, 또한, 시각동기화가수행된각각의다기능계측모듈에서안전진단을수행함으로써시설물의이상거동에대응하는손상위치및 손상정도를신속하고정확하게파악할수 있으며, 또한, 다기능계측모듈각각의대화를통해경고오류를저감시킬수 있는, 대화기능, 지능기능및 임무기능의다기능계측모듈을구비한시설물안전관리시스템및 그방법이제공된다.
Abstract:
구조물의접합이음부및 균열이발생할수 있는부재의표면에전기저항의측정이가능한전도체전선이매립된고연성밴드층을부착하고, 소정의자동측정장치를사용하여장기간및 연속적으로전기저항을계측함으로써해당구조물의균열에의한손상유무및 균열의진전정도를측정할수 있고, 또한, 테이프형태등 기타넓은범위에손쉬운부착이가능한재료를매개체로사용함으로써구조물의국부적인손상및 균열뿐만아니라부착길이를넓힘에따라비교적매우넓은범위까지측정할수 있는, 구조물손상측정용게이지를이용한이동식구조물손상측정장치와측정방법이제공된다.
Abstract:
조립 설치가 가능한 박스형 연결보 및 부속부재로 형성되는 바닥판 이음부를 서로 이웃하는 두 개의 강합성 바닥판 사이에 설치함으로써, 기존의 복잡한 이음부를 대폭 단순화할 수 있고, 프리캐스트 강합성 바닥판과 이음부의 내구성 및 피로강도, 바닥판 전체 강성이 증가되도록 강합성 바닥판을 일체화시킬 수 있고, 또한, 프리캐스트 강합성 바닥판간의 연결을 위한 하부작업을 생략함으로써 시공성을 대폭 향상시킬 수 있는, 박스형 연결보를 이용하여 바닥판 이음부를 형성하는 프리캐스트 강합성 바닥판 및 그 시공 방법이 제공된다.
Abstract:
Provided are a system to detect abnormal behavior and evaluating safety of a structure and a method thereof capable of easily estimating a continuous abnormal behavior time of the structure by combining and analyzing a time domain and a frequency domain from a high-frequency vibration response signal of the structure, and performing an abnormal behavior assessment in accordance to a self-learning and pattern recognition algorithm; determining the authenticity of the detected abnormal behavior whenever the abnormal behavior of the structure is detected; and easily estimating a damaged region around a sensor node.
Abstract:
Provided are a sensor fixing device embedded in a concrete structure and a method thereof. The present invention can fix a sensor for monitoring a concrete structure not to be exposed to the outside of the concrete structure by embedding a sensor fixing device in the concrete structure beforehand when the concrete structure is formed, and can embed the sensor fixing device for fixing the sensor in the preformed concrete structure by crushing the concrete structure. Since the sensor is embedded in the concrete structure and is strongly in contact with the inner surface of concrete by elastic springs having high stiffness, the present invention can accurately acquire the moving data of the concrete structure. Also, the present invention does not need an advanced work for attachment when the protruding sensor is attached, and can remove a main cause that spoils the appearance due to the protruding sensor.
Abstract:
PURPOSE: A precast steel composite deck with a concrete shear key, strengthened with a steel plate, and a connection member and a construction method thereof are provided to enable cost-efficient construction by not requiring a welding work. CONSTITUTION: A precast steel composite deck(100) with a concrete shear key, strengthened with a steel plate, and a connection member comprises main tension beams(110), intermediate plates(120), upper bars(130), connection sleeves(140), upper concrete, and steel plates(160) for shear key reinforcement. The intermediate plates are used as a lower form of the upper concrete. The upper bars comprise horizontal and vertical bars(131,132). The connection sleeves are formed on the ends of the horizontal bars and have grouting holes(141). The upper concrete is placed on the top of the main tension beams. The steel plates for shear key reinforcement are installed concrete shear keys to be separated from the main tension beams and the sides of the upper bars.