Anchor Frame Collar For L68D Mast

Products Specification

Type , Model: Anchor Frame Collar For 24A1 Mast

Size: 2m for 2M L type mast

Materials: Q345B

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.

Anchor Frame Collar For L68D Mast

Tower Crane Knowledge sharing：

Tower crane safety inspection focus, tower crane safety inspection should pay attention to the problem

While the tower crane plays a role, it is also dangerous. Based on the understanding of the use process of the tower crane with the customer, the technicians of our factory have summarized the key points of the safety inspection of the lower tower crane and the problems that should be paid attention to in the safety inspection of the tower crane.

1. Tower crane foundation inspection

The foundation of tower crane is an important link of tower crane safety. The first thing to be concerned about in the inspection is whether the tower crane foundation ground endurance meets the manufacturer's design requirements. At present, the ground endurance requirements of most tower cranes are generally 200~300kpa.

Check the geological survey report to see whether it meets the requirements. For the actual ground endurance does not meet the design requirements, check whether the tower crane foundation has been piling, increase the foundation and other corresponding treatment.

Anchor Frame Collar For L68D Mast

For the following forms of tower crane foundation treatment, the inspection should pay special attention to the following checkpoints

(1) sinking form of tower crane foundation

The foundation subsidence form refers to the form in which the base surface of tower crane foundation is lower than 0.00 elevation and placed at the bottom elevation of basement foundation pit. For this type of tower crane foundation treatment, attention should be paid to the drainage of the foundation part of the tower crane to avoid water accumulation

 Last year, xiamen city had a tower crane base section due to water, affecting the driver, inspectors inspection and failed to timely find foundation section base weld cracks, plus weld steel fatigue damage serious occurred tower accident.

Anchor Frame Collar For L68D Mast

(2) the tower crane foundation is placed on the slope

Based on the slope, the foundation must be piling processing, in addition to the above requirements, should also give full consideration to the slope of the lateral pressure, detection, the construction unit should be asked when excavation slope, lateral pressure measures should be taken, such as soil nailing protection or anchor handling measures.

 in my door test review, will happen too much cause the construction units did not consider slope lateral pressure, earth excavation, cause serious deviation of tower crane foundation, bring a big economic loss to construction unit

Anchor Frame Collar For L68D Mast

(3) for embedded parts

The author believes that the use of embedded base or fixed leg should be advocated. For the use of embedded high-strength bolts, the materials should be provided by the original factory, the manufacturer should provide the test report.

The construction unit should report to the supervision unit for examination and approval before embedded, and make relevant hidden acceptance records. At the beginning of this year, a tower crane collapse accident occurred in xiamen city.

It was because the high strength bolts embedded in the leasing unit did not meet the requirements, the nuts and bolts were confused with the metric system and the British system, and the tower crane fell when the crane was installed to the first section of counterweight.

Anchor Frame Collar For L68D Mast

Place shall not cover (4) crane foundation soil, an increase the bearing capacity of the foundation, the second for the weld of observation base, xiamen has a tower crane of soil cover last year, but the driver is more sophisticated, feel cranes have sound.

Immediately to go over all standard bolt, has not found the problem, after remove the soil, it is found that the base steel weld cracking phenomenon, after the prompt treatment, did not have significant consequences.

Anchor Frame Collar For L68D Mast