How to set the quota for the reinforcement of the floor slab?

First, the main key points of cutting and demolition.

1. Before the demolition of this project, the drawings (including the original structural drawings) and data of the demolition project should be fully understood, and the on-site investigation should be carried out, and the construction organization design or plan and safety technical measures should be prepared in accordance with the relevant technical specifications of the state and the construction administrative department.

2. Before the demolition of structural components, the project should ensure that the external load has been removed, removed or unloaded, and at the same time, ensure that the dismantled components have been fixed and meet the requirements of the scheme before the demolition work can be carried out.

3. The stability and safety of the structure must be considered in the process of demolition, before the concrete structure cutting construction, temporary support measures should be taken at the bottom of the beam and slab, and the original structure should be reinforced at key parts, and the follow-up concrete cutting work can be carried out only after the reinforced components meet the design requirements.

4. If the following situations are found during the demolition process, the construction unit shall immediately notify the designer, and the construction can only be continued after the designer's confirmation: (1) the existing structure is deformed; (2) Corrosion of existing structural steel bars; (3) cracks in existing structures; (4) The existing structure does not match the drawings.

5. If the drawings require that the original reinforcement should be retained, the construction personnel should find out its location during the demolition process and take appropriate measures to protect it.

6. When carrying out high-altitude demolition operations, lifting tools must be used to lift down larger components or heavy materials in time. The dismantled materials should be cleaned up in time, classified and stacked in the designated place, and it is strictly forbidden to throw them downward.

Second, the characteristics of concrete mechanical cutting and equipment selection.

Concrete cutting is the use of water-cooled diamond track or hydraulic saw cutting machine to open and dismantle concrete, the construction speed is fast, the noise is small, no vibration, no impact, no impact on the building structure, is to replace the electric hammer, air pick, manual brazing and other vibration of the most advanced technology construction.

This project adopts hydraulic disc saw, disc saw cutting system, diamond drilling machine, and diamond cutting saw blade and chain to complete the vibration-free cutting and demolition of reinforced concrete. The main equipment to be used in this project: 5 sets of 2600W drilling machines, 5 sets of 2800W disc saws, 2 sets of 40KW hydraulic saws, and 15 sets of 3T manual hoists.

Third, the construction process and technological process: The construction sequence of cutting and demolition is shown in the figure below

You are **, Shandong doesn't seem to have such a quota.

1000 yuan square, the job search team may be much cheaper.

The quota can be set according to the steel structure production and installation, and the bonding material can be increased to the consumption, and the actual labor and mechanical shift use can also be converted.

According to the actual area of the carbon fiber cloth, you can press the ** set of carbon fiber cloth, and the grinding and plastering are calculated separately, which can also be included in the ** carbon cloth.

Carbon fiber reinforcement includes carbon fiber cloth reinforcement and carbon fiber plate reinforcement. The research on the use of carbon fiber materials for the reinforcement and repair of concrete structures began in the 80s in developed countries such as the United States and Japan. China's technology started very late, but with the rapid development of China's economic construction and transportation, a considerable part of the existing buildings due to the low design load standards at that time caused by the historical problems, some buildings due to the change of use function, it is difficult to meet the needs of the current standard use, and it is urgent to repair and reinforce.

At present, there are many commonly used reinforcement methods, such as: enlarged cross-section method, outer steel reinforcement method, bonded steel reinforcement method, carbon fiber reinforcement method, etc. Carbon fiber reinforcement repair structure technology is another new type of structural reinforcement technology after increasing the concrete section and sticking steel.

There is no quota to set, settled according to the market price, generally 300 yuan square meters.

This is the **** of Shanghai Lianwang Industry that needs to be counted separately.

You can choose HM carbon fiber cloth reinforcement, which has light weight and high strength.

1. If the design changes that occur after the completion of the construction of the floor slab actually increase the punching, you can set the hole or visa.

2. Punching holes on the floor slab is comprehensively considered in civil construction or installation construction, and there is no need to set it again. If it is omitted during the construction process, or caused by the construction not according to the drawings, it is the responsibility of the construction party and should be unconditionally improved.

3. According to the national unified budget, it is in the fourth chapter of the installation of electrical equipment in the second volume, and there are corresponding sub-items in the terminal box and terminal strip installation, and there are terminal wiring and other items in it. The flat steel should be calculated according to the lightning protection down wire sleeve, and the length should be calculated according to the distance from the column to the terminal box. It's okay to count more, ** is not high, and it can't affect the overall situation.

After reading the following brother's platform, my point of view is different from his, and the unit price is signed directly when the hole is opened, because the fixed fee is very, very low, and it is not enough for the cost of construction. Now the unit price and number of open hole visas are very common in the country, according to the caliber and the different brick wall holes and concrete holes are visa**. This is widely recognized by the same industry, and you can also make profits from it.

If you have any questions, I will help you with additional questions.

According to the calculation, the quota of projects with concrete openings is demolished.

The set of quotas is not cost-effective, and there is generally no quota for drilling holes in the installation (there are slotted ones), and this kind of work content is generally on-site visa.

I set the construction project consumption quota and unified base price list in Hubei Province (2008) A3-106 precast concrete, precast concrete C20 gravel 20 replaced with cast-in-place concrete C20 gravel 20 Find 1-44 cast-in-place concrete.

Reinforcement and reinforced concrete engineering: cast-in-place concrete slab pouring and smashing cast-in-place concrete C25 (40).

According to the quota agreed by both parties.

Housing repair quota or comprehensive unit price, seismic reinforcement can generally be reinforced by pasted Hummer carbon fiber cloth, bonded steel reinforcement, prestressed carbon plate reinforcement, etc.

The load can be increased, and we at Kellyheng do this.

Of course, there are also ways to reinforce the floor slab.