How to calculate the foundation of QTZ80 tower crane

Hello dear, the independent height of QTZ80 tower crane is meters, and the detailed parameters are as follows: Technical Performance Table Rated lifting moment 880 Maximum lifting capacity t 8 Working range m 3 55 Lifting height Freestanding Attached Lifting speed Doubling rate m min 86 44 Quadruple rate 43 22 Slewing speed r min Luffing speed m min Jacking speed Minimum stable descending speed 7 Dimensions of the whole machine Chassis m 8 8 Height of the whole machine Stand-alone Attached Boom end to slewing center, QTZ80 tower crane feature 1 Rated power: Maximum Lifting Capacity:

8T i 3 maximum working range: 56 meters 4 initial lifting height 45 meters (suitable for the construction of buildings below 14 floors, when the maximum lifting height can reach 80 meters, suitable for less work 50 storey buildings.

QTZ80 tower crane technical parameters see **.

The arm length is 55 meters, the maximum lifting capacity at 55 meters is tons, the independent height is 45 meters, the maximum lifting capacity is 8 tons, and the rated power is.

There is a special calculation formula for embedded fixed foundations in the "Design Code for Tower Cranes".

b/3=[pb]

l=b/2-e

Meet the above two formulas, the anti-tipping stability of the tower crane is satisfied.

If it is an underframe foundation, you can directly use the foot support reaction force (the data of the tower crane manual) to calculate the maximum compressive stress of the foundation. Less than the endurance is satisfied.

The pile foundation should be calculated first, and the reaction force of the foot support can be calculated according to the coupling formula. Then the bearing capacity of the pile is calculated according to the reaction force of the pile head. The design of the pile should meet the requirements of the pile foundation. You can refer to the chapter of pile foundation in the "Code for Design of Building Foundation" to design.

Believe me, the instructions only give a dead number, and the requirements for ground endurance are extremely demanding. In order to adapt the tower crane foundation to a variety of different geological conditions, you need to calculate it yourself in accordance with the standard specifications!

The above formula is an excerpt from the relevant chapters in the "Tower Crane Design Code" (GB T13752-1999).

Some of the newer standards are the "Safety Technical Regulations for the Installation, Use and Dismantling of Tower Cranes in Building Construction" (JGJ196-2010), which gives some design references for lattice and cushion cap tower crane foundations, but it is not practical. If you are interested, you can buy a copy and come back and study it by yourself.

Weight and amplitude correspondence formula: q=44522 (

Width m 13 14 15 16 17 18 lifting weight t 3

Width m 19 20 21 22 23 24 25 lifting weight t

Amplitude m 26 27 28 29 30 31 32 lifting weight t

Width m 33 34 35 36 37 38 39 lifting weight t

Amplitude m 40 41 42

The corresponding formula for lifting capacity t and amplitude: q=44522 (

Here are some data to refer to, you can take a look.

What's you giving upstairs? Don't mislead people's children, don't copy and paste casually if you don't know. Tower crane foundation according to different types of tower cranes, manufacturers will give different foundation drawings, of course, according to different working conditions, tower crane foundation is also different, steel platform or concrete cap, etc., can not be explained simply, it is best to check the tower crane model manual, there will be a detailed description, the rest is the knowledge of soil mechanics, you need to calculate and check.

Summary. QTZ80 tower crane technical parameters.

Hello dear, QTZ80 tower crane technical parameters, the arm length is 55 meters, the maximum lifting capacity at 55 meters is tons, the independent height is 45 meters, the maximum lifting capacity is 8 tons, and the rated power is.

Extended Materials. Tower crane is the most commonly used lifting equipment on construction sites, also known as "tower crane", which is used to lift construction raw materials such as steel bars, wooden flutes, concrete, steel pipes and other construction materials with a section (height) (referred to as "standard section"). Tower crane is an indispensable piece of equipment on the construction site.

The function of the tip of the tower crane is to bear the upper load from the boom rope and the balance arm rope, and directly transfer it to the tower structure through the structural components of the rotary tower, turntable, bearing seat, etc. The top of the self-elevating tower has truncated cone type, forward or backward truncated cone type, herringbone frame type and diagonal brace frame type.

All the upper rotary tower crane needs to be set with a counterweight, and its function is to support the counterweight, which is used to constitute the balance moment that is opposite to the direction of the lifting moment in terms of action required by the design. In addition to the counterweight, a lifting mechanism is often installed at its tail. The reason why the hoisting mechanism is placed at the tail end of the balance arm together with the counterweight is that one can play the role of part of the counterweight, and the other is to increase the distance between the rope drum and the spire guide wheel, so as to facilitate the winding of the wire rope and avoid the phenomenon of chaotic rope.

QTZ80 tower crane technical parameters.

QTZ80 tower crane technical parameters, QTZ80 tower crane technical parameters, arm length is 55 meters, the maximum lifting capacity at 55 meters is tons, the independent height is 45 meters, the maximum lifting capacity is 8 tons, the rated power is the expansion of the data tower crane tower crane is the most commonly used lifting equipment on the construction site also known as "tower crane", with a section of the length (height) (referred to as the "standard section"), used to lift the construction of steel bars, wooden flutes, concrete, steel pipes and other construction raw materials. Tower crane is an indispensable piece of equipment on the construction site. The function of the tip of the tower crane is to bear the upper load from the boom rope and the balance arm rope, and directly transfer it to the tower structure through the structural components of the rotary tower, turntable, bearing seat, etc.

The top of the self-elevating tower has truncated cone type, forward or backward truncated cone type, herringbone frame type and diagonal brace frame type. All the upper rotary tower crane needs to be set with a counterweight, and its function is to support the counterweight, which is used to constitute the balance moment that is opposite to the direction of the lifting moment in terms of action required by the design. In addition to the counterweight, a lifting mechanism is often installed at its tail.

The reason why the hoisting mechanism is placed at the tail end of the balance arm together with the counterweight is that one can play the role of part of the counterweight, and the other is to increase the distance between the rope drum and the spire guide wheel, so as to facilitate the winding of the wire rope and avoid the phenomenon of chaotic rope. Hope it helps.

Tens of meters can lift 2 tons.