When using internal climbing tower cranes for construction, special attention should first prepare the installation work, the choice of a suitable auxiliary lifting capacity truck crane installation, its magnitude, the height and weight of the hook should meet in groups set up within the pit climbing tower cranes needs.

 

Installation sequence internal climbing tower cranes as follows:? Internal climbing tower crane base and foundation section - climbing systems are all standard tower section - bearing, slewing ring, turntable and rotating mechanism overhead, cab - Balanced? arm? boom? counterweight. Climbing frame and parts can be installed separately, including the corresponding openings at the floor before climbing climbing tower crane began to climb.

 

Climbing tower crane within the tower, the tower cap, boom, arm and climbing institutions balance, is installed inside the building characteristics (elevator hoistway or stairwells ad hoc bay). Construction surface for the whole round. This is because the class climbing tower from the inside jacket rack, inner climbing guide frame, ladder, climbing frame sets of components embedded box system; climb section from the inside, inside and down sections, beams and lifting beams on the composition of the central top lifting mechanism. This greatly increases the operating range of the tower crane.

 

And attached tower crane compared to internal climbing tower crane with a valid construction capacity, low cost, low cost, safe and tower assembly material library features a small footprint. However, the inner climbing tower crane base is located on the building body, where the body needs reinforcement, which is its inadequacies.

After internal climbing tower crane use, often it means the main part of the building was completed, into the interior phase. Then the demolition crane, preparing to become crane driver, crane mechanic and commanders primary responsibility for the new work. However, this process is often a high incidence of accidents. The main reason is because the task is completed crane worker, thought lax, coupled with some construction workers unfamiliar technology, do not operate in accordance with relevant regulations.

 

According to the relevant special construction consulting team success and failures, he summed up the tower crane dismantling thirteen steps, hoping to help the majority of crane practitioners.

 

1. down hooks, remove the hoisting rope fixed end, roll back the rope.

2. lifting the car back to the boom heel fixed, luffing rope reel back, remove the cable luffing mechanism.

3. Remove the three counterweight.

4. Removal boom.

5. Remove the last piece of counterweight.

6. Remove the balance arm.

7. disassemble cab.

8. dismantle the tower.

9. turntable fixing section and the rotation mechanism demolition.

10. the removed section and rotary turntable fixing mechanism.

11. removal of the tower: according to the program set up opposite the tower dismantled tower.

12. demolition crane chassis.

13. after the removal of tower crane parts required to break down and decompose transported from the scene