Cable Suspension Slab
A cable suspension slab is a type of slab in which the slab deck is hung below the suspension cables on vertical suspenders.This type of slab has cable suspended between towers, with vertical suspender cables that transfer the live load and dead load below to the slab deck.
The suspension cable must be anchored at each end of the bridge since any load applied to the bridge is transformed into a tension in these main cables.The main cables continue beyond the pillars to deck-level supports, and further continue to connections with anchor in the ground.If the span of slab is too long then we go for cable suspension slab which is supported on cable such as London Bridge.
This kind of slab is provided where the length of the span is more and difficulty in building columns.In suspension slab columns are provided at every 500 m.
Advantages Of Cable Suspension Slab
- Long span are achievable.
- It has simple construction method.
- It has flexibility due to the cable system.
- Less materials are required in construction.
Disadvantages Of Cable Suspension Slab
- Cannot support high traffic.
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