Explain the installation of shock transmission unit, Civil Engineering

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Explain the Installation of Shock Transmission Unit?

It is not always necessary to install STUs while a structure is under construction but the holding down anchor bolts and the brackets are required to be fixed in structure during construction. There are two ways of connecting STUs to a structure.

a) One way is to connect the superstructure element together normally at the expansion joints.

b) The other way is to connect superstructure elements to substructure elements.

The first type of connection may be more helpful for railway bridges where excessive longitudinal traction and braking load is applied to one particular viaduct and the same is required to be transmitted through STUs connected across the expansion joints for sharing the load with adjacent unloaded viaducts. The second type of connection is used for load distribution in continuous bridges.


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