In Civil Engineering, What is rigging?

I completely agreed with Mr. Francois. He gives comprehensive answer.

"Rigging" in civil engineering terms refers to the act of lifting heavy objects like concrete or steel pipes, structural steel elements, building materials, equipment, vehicles etc. 

The basic definition of rigging equipment is equipment used to hoist, lift, push or pull another object.

"Rigging" in civil engineering terms refers to the act of lifting heavy objects like concrete or steel pipes, structural steel elements, building materials, equipment, vehicles etc. from one level to another, up or down,  with the aid of suspended cables, ropes, spreader beams  etc. and the use of a crane, derrick, "come- a- long", pulley system or sometimes pure man power.

A question useful  ..follow up ..thank you Mr . shakeel

The traditional definition of a rigger is a person that uses hoists and pulleys. The industry extends the term, however, to define anyone engaged in the lifting, moving and transporting, positioning, pulling and securing of heavy equipment, machines and oversized loads.

A rigger moves loads varying in size, weight and shape such as manufacturing machines in factories, X-ray machines in hospitals, and storage silos on farms.

A rigger uses cranes, overhead lifting gear, pulleys, load moving dollies, hydraulic jacks, and flat bed trucks.

A rigger is primarily found in industrial and commercial industries such as in oil, gas, mining, ship building, construction, manufacturing, power and telecommunication, hospitals, etc..

Rigging is the work a rigger performs.

A rigger is a person that specializes in the lifting and moving of extremely large or heavy objects, often with the assistance of a craneor derrick.

The basic meaning of Rigger is: Doing physical work, carrying heavy things, working up and down with mechanical machines etc.... 

In civil engineering rigging is; 

To act of lifting heavy objects like concrete precast structural members or steel casinging/pipes, for shoring or piling works,

Structural steel elements, building materials, equipment, vehicles etc. 

Specifically, in the field, rigging is subjected to the lifting activities. A rigger is an authrized person who supports, signals and guides the lifting activities with heavy or lifting equipment