How much reinforcement is used for the tower crane base? What is the base size of the tower crane?

Crane. 100 rebars are used for the base.

The tower crane base is one of the most commonly used lifting equipment on construction sites, also known as tower cranes.

It is used to lift the raw materials of construction such as steel bars, wooden flutes, concrete, and steel pipes with the length of one section at a time. Tower crane is an indispensable piece of equipment on the construction site. The function is to bear the upper load transmitted from the boom rope and the balance arm rope, and directly transmit it to the tower structure through the structural components of the slewing 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 counterweights.

It is also often installed with a lifting mechanism 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.

It depends on what type of tower crane, the general tower crane has a foundation drawing, the diagram is designed with reinforcement of steel bars, and the foundation is involved in structural things, can not be described with how many steel bars are generally used, but based on the design drawings. We are all friends who pay attention to the basis of construction.

At the bottom of 18, four on 16, four after the ash 90 cm single hoop waist tendon side one, we all do this and never use drawings ......

Do you know how big the concrete tower crane foundation steel bar size is.

Generally, such as the bridge 5500 * 5500 * 1500 = 150 square steel bar 20 double-layer two-way large rubber infiltration about tons, the specific ridge depends on the condition of the foundation.

Summary. The tower crane base is usually a reinforced concrete rectangular cushion cap, with a rectangular side length of 4-5m and a thickness of; The reinforcement is installed as a double-layer two-way reinforcement, and the reinforcement is located above and below the cushion cap concrete (deducting the upper and lower protective layers); The steel bar is often selected 12-16mm threaded steel bar, the spacing is 100-200mm, and the upper steel bar is generally fixed with steel bar support; After the reinforcement is installed, the tower crane base embedded bolt is often installed and fixed on the cushion cap reinforcement skeleton and welded and reliably connected with the cushion cap reinforcement; The concrete pouring of the cushion cap usually requires the installation of a template, and the concrete cushion cap pouring has high requirements for surface flatness.

The tower crane base is usually a reinforced concrete rectangular cushion cap, with a rectangular side length of 4-5m and a thickness of; The reinforcement is installed as a double-layer two-way reinforcement, and the reinforcement is located above and below the cushion cap concrete (deducting the upper and lower protective layers); The steel bar is often selected 12-16mm threaded steel bar, the spacing is 100-200mm, and the upper steel bar is generally fixed with steel bar support; After the installation of the steel bar collapse, the tower group virtual hanging base is often installed and fixed on the cushion cap reinforcement skeleton and welded and reliably connected with the cushion cap reinforcement; The concrete pouring of the cushion cap usually requires the installation of a template, and the concrete cushion cap pouring has high requirements for surface flatness.

Generally, 5500*5500*1500 = 150 double-layer two-way square steel bars of 20 are about tons.

The materials required for the tower crane foundation are as follows:Construction hoisting machinery and equipment record certificate, installation unit qualification certificate, copy of safety production license, installation unit special operation personnel list and certificate, installation unit full-time safety officer, technical personnel list and certificate.

The construction plan for the dismantling of lifting machinery and equipment, the emergency plan for the special accident of the dismantling of lifting equipment, the contract for the entrusted installation and demolition of lifting equipment, the concrete strength test report of the tower crane foundation, and the installation safety technology disclosure sheet.

Tower crane introduction:Tower crane is the most commonly used lifting equipment on construction sites, also known as "tower crane", with a section of the length (height) (referred to as "standard section"), used to lift 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 information of the tower crane foundation is as follows:

1. Process quality inspection form;

2. Inspection and batch quality acceptance records of steel bar sub-project (raw materials, steel bar processing);

3. Acceptance record of concealed project;

4. Concrete sub-item (raw materials, mix ratio design) inspection batch quality acceptance records;

5. Concrete sub-item (concrete construction) inspection batch quality acceptance record;

6. Acceptance record of cast-in-situ structure sub-project (structural construction);

7. Foundation groove inspection record and foundation treatment record.

8. Certificate inspection report of embedded parts 1

The tower crane security inspection information is:

1. After the installation of the tower crane is completed, go through the relevant procedures at the safety supervision station, pay the inspection fee, and request the inspection. Waiting for the inspection report to be issued; You must provide a copy of the business license of the tower crane production unit, a copy of the purchase and sale contract, the supervision and inspection report, and the original product certificate.

2. Handle the use of registration procedures: bring the inspection report, but also in the safety supervision station to get the table, handle the relevant information, submit to the safety supervision station, after the approval to get the "permit", the tower crane can be put into use, and as a source of danger for the record, after the use of the dismantling of the sales number.

3. Attachments are required: tower crane catalog, record registration certificate, inspection certificate, construction crane registration form, acceptance inspection report, disassembly and assembly plan, jacking plan, anchoring plan, safety technology disclosure, grounding test record, installation and commissioning record, foundation acceptance form, installation acceptance form, anchoring acceptance form, inspection record, hoisting equipment acceptance form, operator registration form, special personnel employment certificate, safety production agreement, mechanical installation and use management system, installation unit enterprise qualification certificate, etc.

4. The production license, installation unit qualification and production unit qualification of the tower crane.

As long as you know how the foundation is built, you will know what you want!!

Summary. <>

Dear, hello, the practice of tower crane foundation underframe fixed self-elevating tower crane to use block reinforced concrete foundation is the most suitable, on the foundation with higher ground endurance, this concrete foundation plate size can be taken as 200 cm 200 cm 50 cm, the top and bottom of the plate should be two-way reinforcement.

Tower crane foundation reinforcement practice.

Dear, hello, the practice of tower crane foundation underframe fixed self-elevating tower crane to use block reinforced concrete foundation is the most suitable, on the foundation with higher ground endurance, this concrete foundation plate size can be taken as 200 cm 200 cm 50 cm, the top and bottom of the plate should be two-way reinforcement.

The foundation of the fixed self-elevating tower crane must meet two requirements: first, the upper load of the tower crane is evenly transmitted to the foundation and must not exceed the ground endurance; Second, the tower crane can maintain overall stability without tipping under various unfavorable working conditions.

How to match the foundation with reinforcement.

Kiss. Foundation reinforcement foundation reinforcement according to their own homestead to choose, if it is a large foot foundation, this foundation does not need reinforcement, but limited by the rigidity angle, so it is best to set up the ground ring beam at 60mm under the indoor ground when masonry, the size of the ground ring beam can be set to 240 * 240, the main reinforcement is 4 12, and the stirrups are adopted

If the strip foundation is used, the bottom layer is used to expand the foundation beam, the transverse reinforcement is 12@200, and the distribution reinforcement is used, and the concrete number of this foundation cannot be lower than C20.

It is 5 meters long and wide and 1200 meters high

The same as the ordinary bottom plate reinforcement, refer to the drawings, check the steel bar model, the number of roots, the location, the spacing, lap, etc., and the tower crane steel bar is generally made of 90 ° hooks at the upper and lower ends to prevent the end from being damaged by compression, and the middle is prevented from stretching according to the spacing, and the large-diameter steel bar is used to do Madden, because the tower crane foundation steel bar is relatively thick and heavy, to prevent the support from being unstable.

Summary. Dear, I'm glad to answer for you, tower crane base concrete specification: strength grade:

The tower crane base uses C30 or C35 concrete to ensure sufficient strength and stability. Slab thickness and reinforcement: According to different engineering requirements and load conditions, the thickness of the base plate and the reinforcement of the reinforcement need to be designed and calculated.

Among them, the plate thickness should meet the corresponding standards and specifications, and the reinforcement of the steel bar needs to consider the height, wind, vibration and other factors of the tower crane to ensure the stability and safety of the base. Hardening time: In order to ensure that the concrete can harden sufficiently after pouring, it is usually necessary to wait for a certain amount of time after pouring for the concrete to reach the expected hardness and strength.

The specific hardening time varies according to the concrete strength grade, ambient temperature, humidity and other factors. Pouring method and process: In the pouring process, it is necessary to operate in strict accordance with the relevant processes and processes to ensure that the concrete is uniform, dense and free of holes, and to avoid the shrinkage and crevices of the concrete as much as possible.

Dear, I'm glad to answer for you, Tongcao tower crane base concrete specification: strength grade: The tower crane base uses C30 or C35 concrete to ensure sufficient strength and stability.

Slab thickness and reinforcement: According to different engineering requirements and load conditions, the thickness of the base plate and the reinforcement of the reinforcement need to be designed and calculated. Among them, the plate thickness should meet the corresponding standards and specifications, and the reinforcement of the steel bar needs to consider the height, wind, vibration and other factors of the tower crane to ensure the stability and safety of the base.

Hardening time: In order to ensure that the concrete can be fully hardened after pouring, it is usually necessary to wait for a round of erection time after pouring so that the concrete can achieve the expected hardness and strength. The specific hardening time varies according to the concrete strength grade, ambient temperature, humidity and other factors.

Pouring method and process: In the pouring process, it is necessary to operate in strict accordance with the relevant processes and processes, Li Da ensures that the concrete is uniform, dense and free of holes, and avoids the shrinkage and crevices of the concrete as much as possible.

Expansion related: The crane base needs to be designed and calculated according to the actual situation to ensure that the tower crane can withstand the expected load and vibration when working, and at the same time prevent the base from tilting or collapsing and other accidents. The following factors need to be considered in the specific design:

Parameters such as the height of the tower crane, the length of the arm and the large lifting capacity. The strength and stability of the limbs of the engineering ground. Local environmental conditions and meteorological factors.

The shape, size and material of the tower crane base, etc. Details such as the thickness of the base plate and the reinforcement of the reinforcement. In addition to the calculation and calculation, the installation process of the tower crane base is also very important.

During installation, it is necessary to strictly comply with relevant safety regulations and operating procedures, and ensure that the horizontality and verticality of the base meet the standard requirements. At the same time, it is necessary to wait for a certain amount of time after the base is poured so that the concrete can fully harden and achieve the expected strength and stability.