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Bridges are the most complex, time consuming and expensive road structures, and, accordingly, their construction must be carried out at a high technological level. Large spans and dynamic loads on structures dictate their own requirements for their construction.

One of the modern industrial methods of bridge construction is the cyclic longitudinal thrusting of large span structures. Longitudinal thrusting is widely used in domestic and foreign bridge construction. This method of construction has an advantage over other technologies: this method allows you to reduce the construction time due to the simultaneous work on the installation of the superstructure and the construction of supports. The method of longitudinal sliding is as follows: the superstructure (or part of it) is assembled on the approach embankment or scaffolds built along the axis of the bridge, and then pushed into the span using hydraulic equipment.

For the convenience and efficiency of the bridge builders' work, Enerpred has developed the UG500 / 1500-MK hydraulic unit.

The main components of the UG500 / 1500-MK product are: two clamps, two pushers, two support brackets and a pumping station. The clamps are designed to hold the elements of the bridge structure on both sides, with the force of each clamp 1750 tf during sliding. Each pusher includes dual hydraulic power cylinders with a stroke of 1500 mm and a forward stroke force of 500 tf. To correct the synchronization of movement of the rods of the hydraulic cylinders of the pushers, there are control valves installed at the pumping station. The support brackets are mounted on a fixed support and connected to the pusher by means of an axis. Pushers and clamps are controlled by one hydraulic pumping station 2NER-10 / 25AK / APP400T1-M1 with a control panel.

The advantages of our hydraulic unit UG500 / 1500-MK:

The use of a valve control allows you to maintain the required force on the clamps and avoid slipping
The hydraulic cylinders and jacks of the unit are equipped with quick disconnect couplings, which allows you to quickly connect / disconnect high pressure hoses (HPH) and eliminates the loss of working fluid when disconnected from the pressure source
The use of the station 2NER-10 / 25AK / APP400T1-M1, with an oil supply rate of 25 l / min, provides one sliding cycle (1500 mm) in 10 minutes
Clamping cylinders are attached by means of axial supports, which ensures the removal of radial loads on the cylinder rod
Possibility of rearranging the system of pushing hydraulic cylinders to the other side of the "clothespin" for working in the opposite direction

General view of the clamp

General view of the product


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Rosa Luxemburg street, 184,post office box 129
Irkutsk, 664040, Russia

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+7 (3952) 555-159

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zakaz@enerpred.com

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