R86 Mast Section For Tower Crane Masts

Products Specification

Type , Model: R86 Mast Section For Tower Crane Masts

Size: 2.5x2.5x5.78m  (2.9x2.9x5.98m)

Materials: Q345B

Within: Pins, bolts, Ladder, Platform

Process: Blasting derusting, 

Painting:  Under painting , Middle painting, Surface painting.

Our factory produce and supply almost all famous brand tower crane :Mast section, Anchor Frame, Fixing angle ,Adaptor and so on as good quality and price.

R86 Mast Section For Tower Crane Masts

Tower Crane Knowledge sharing：

A tower foundation that meets the design requirements is an indispensable part of ensuring safe construction.
Tower lifting is a common lifting equipment on the construction site. With its powerful lifting ability, it is widely used in the construction industry. In addition, it plays an extremely important role in the area of transport.

In the tower crane accident, there are quite a few cases related to the collapse of the tower crane. The reason is caused by the unqualified foundation of the tower crane. This shows that the tower hanging infrastructure is an indispensable part of ensuring safe construction.
In order to rush the construction period, part of the site was hastily installed in the absence of concrete strength, so that the tower's hanging weight exceeded the limit of the ground stress, and an unfortunate incident of collapse and tipping occurred

R86 Mast Section For Tower Crane Masts

The excavation work of some construction units near the tower hanging foundation led to landslides and even displacement triggered tower hanging accidents
Due to the excessive groundwater extraction in many cities in China in recent years, groundwater funnels have been generated, which has caused uneven settlement and affected the operation and construction of Tower cranes

.R86 Mast Section For Tower Crane Masts

Therefore, in order to prevent the collapse of the tower crane, the construction unit must ensure that the ground endurance meets the design requirements when making the tower crane foundation.

The strength of the reinforced concrete reaches at least 80 % of the design value. Special treatment measures should also be taken for the foundation of the tower with basement works.

For example, piling under the foundation and welding the steel bars at the end of the pile with the foundation foot bolts firmly. Concrete foundation should be flat and compacted, the bottom of the foundation can not be made into a pot bottom.

The size error of the foundation foot bolt must be strictly in accordance with the requirements of the base diagram.

The foot bolt must maintain a sufficient length of the ground surface, and each foot bolt must be pre-tightened with a double nut.

R86 Mast Section For Tower Crane Masts

The base surface must be processed before installation to ensure that the level of the foundation can not exceed 1/1000. At the same time, the tower hanging foundation must not accumulate water, which will cause uneven settlement of the tower hanging foundation.

In the vicinity of the tower hanging foundation, do not dig pits or ditch at will.