Samsung Corporation

Dong-Ok Kang

Man-Geun Yoon

Hyun-Yang Shin

Yeong-Seon Kim

A construction method for a girder in a bridge in which a plurality of piers are installed in an interval in a longitudinal direction of the bridge, a plurality of copings are installed on the piers, and a plurality of girders respectively installed between the piers are installed on the copings. The method comprises the steps of: installing at least one temporary girder on a front coping of the copings and a rear coping adjacent to the rear coping of the copings; installing a crane for pulling up a girder having a girder pulling up space therein guided by the temporary girder; and providing with a girder by a pre-cast method so as to install a girder on the front coping and the rear coping.

Construction method for girder in bridge, crane for pulling up girder, vehicle for carring girder, and girder used for the same

Disclosed is a two-way pre-stress system for applying pre-stress to a member of a structure by a pre-tendon method, the system comprising: a mold for forming the member, the mold having a concrete pouring space; a supporter installed outside the mold; at least one horizontal tendon installed in the mold in a horizontal direction; a horizontal tendon settling device installed at the supporter, for settling the horizontal tendon in the mold; at least one vertical tendon installed in the mold in a vertical direction; a vertical tendon settling device installed at the supporter, for settling the vertical tendons in the mold; and a bending device installed at the supporter and combined with at least one of the vertical tendon, for forming a bent portion in at least one vertical tendon in a deep portion of the member.

Growing community of inventors

Kwacheon, South Korea

Dong-Ok Kang