METHOD OF TELESCOPIC LONGITUDINAL SLIDING OF BRIDGE SUPERSTRUCTURE

摘要

FIELD: construction. ^ SUBSTANCE: method of longitudinal sliding of bridge superstructure includes three stages. At first stage superstructure at one of banks is assembled as continuous structure and installed at bogies. At that inner beam is divided into two parts. The first part of inner beam is used as sliding girder. The second part is used as rear counterbalance and is loaded with ballast. The first part of inner beam is assembled along direction of outer beam sliding while the other part is assembled behind outer behind both parts of inner beam are driven into outer beam to a certain length and fixed by respective fasteners. At second stage superstructure is transported by means of pushers to the installation site and slided. At third stage outer beam is anchored; ballast and fasteners are removed; parts of inner beam are slided into outer one and then superstructure is installed downwards by means of jacks into final position. ^ EFFECT: improvement of economic factors and reduction of labor efforts due to rejection of rear counterbalance at bridge superstructure sliding. ^ 1 cl, 3 dwg