Unitsky String Technologies

11 September 2016

SkyWay: smooth movement

Passenger comfort is estimated by smooth movement W (by method of E. Shperling):

Comparison of split overpass (conventional bridge) and uncut pre-stressed overpass (SkyWay technology).

Fig. 2. Diagram of vertical acceleration, felt by passenger during movement on split overpass

Fig. 3. Diagram of vertical acceleration, felt by passenger during movement on uncut pre-stressed overpass

Fig. 4. Diagram of transverse acceleration, felt by passenger during movement on split overpass

Fig. 5. Diagram of transverse acceleration, felt by passenger during movement on uncut pre-stressed overpass

Disadvantages of split overpass:

• peak values of acceleration when moving through supports;
• complicated design of the supporting node with a temperature joint.

Advantages of uncut pre-stressed overpass:

• smooth change of acceleration when moving through supports;
• more simple design of the supporting node.

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