The present invention relates to a hydraulic jack including a safety device and an intactness lift method for an upper structure of a bridge by using the hydraulic jack including the safety device and, more specifically, relates to a hydraulic jack including a safety device and an intactness lift method for an upper structure of a bridge by using the hydraulic jack including the safety device, which can continuously support an upper structure of a bridge without being supplied with hydraulic pressure when lifting the upper structure of the bridge. Moreover, without operation by a worker, the bridge can be lifted with a wedge portion which is a safety device operated by a load, and a state of lifting the upper structure of the bridge can be intactly maintained without additional operation by a worker even if hydraulic pressure is not supplied during lifting the upper structure of the bridge, or hydraulic pressure is leaked after lifting the bridge.

    본 발명은 교량 상판 인상시 유압이 공급되지 않는 상황에서도 교량 상판을 지속적으로 지지할 수 있는 안전장치를 포함한 유압잭과 이를 이용한 교량 상판의 무손상 인상 공법에 관한 것으로, 작업자의 조작없이 하중에 의해 작동하는 안전장치인 쐐기부를 이용하여 교량 인상을 실시함으로써, 교량 상판 인상하는 중간에 유압의 공급이 끊기거나 또는 교량 인상 완료 후 유압이 누수되더라도 작업자의 별도의 조작 없이도 교량 상판이 인상된 상태를 그대로 유지할 수 있는 안전장치를 포함한 유압잭과 이를 이용한 교량 상판의 무손상 인상 공법에 관한 것이다.


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    Title :

    Hydraulic jack including safety device and lift method for upper structure of bridge by using hydraulic jack including safety device


    Additional title:

    안전장치를 포함한 유압잭과 이를 이용한 교량 상판의 무손상 인상 공법


    Contributors:
    KO WON JUN (author)

    Publication date :

    2017-02-10


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Korean


    Classification :

    IPC:    B66F HOISTING, LIFTING, HAULING, OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD , Hub-, Verhol- oder Schubvorrichtungen, soweit nicht anderweitig vorgesehen, z.B. Vorrichtungen mit unmittelbarer Krafteinwirkung auf die Last / E01D BRIDGES , Brücken




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