Apparatus for constructing v-shaped tower to reducing cross-section of top of bridge using jack-up and method thereof

The present invention relates to a bridge superstructure danmyeonryeok reduction V-shaped tower hypothesis device and placing method for using a self-elevating. Pluralities of the present invention is provided with a lift mechanism for lifting the "V" shaped inclined tower and the inclined tower to span the upper surface center of the bridge superstructure and connected between the span of the front and rear ends and inclined front and rear of the tower-side upper end of the bridge superstructure It is provided with a tension cable, a plurality of by that which it is possible to lower the height of the inclined tower less impact on the wind load, non-supporting, and the distance can be shortened using a cheap element, lifting the inclined tower by the lifting mechanism it is possible to adjust the tension of the tension cable and a tensioning the tension adjustment easily to be made in one place, and eliminates the need to add a separate process for the tensioning, and is easy to install to the height of the tower, the visual stability is high, and thus allows operations personnel to perform reliable operation, a plurality of strain K Each by also lifting mechanism without tension or relaxed can adjust the tension of the tension cable simply by lifting the inclination tower is simplified and that the cable tension adjustment operation, a separate enable devices are do not have to be added it can be constructed very economically It will be.