Which company is good for plant reinforcement and transformation?

1. Increase the cross-section reinforcement method; The construction technology of the enlarged cross-section reinforcement method is simple, adaptable, and has mature design and construction experience. It is suitable for the reinforcement of concrete for beams, slabs, columns, walls and general structures. Adding a concrete cast-in-situ layer in the compression area of the reinforced concrete flexural member can increase the effective height of the cross-section, expand the cross-sectional area, thereby improve the bending resistance of the positive section of the component, the shear resistance of the oblique section and the cross-sectional stiffness, and play the role of reinforcement and reinforcement. After increasing the cross-section, it will affect the clearance of the factory building.

2. Outer steel reinforcement method; Outer steel reinforcement is to wrap the section steel or steel plate on the outer edge of the reinforced component, the outer steel reinforced concrete beam should generally adopt the wet outsourcing method, that is, the use of epoxy resin grouting and other methods to bond the section steel and the reinforced structure into a whole, the reinforced component, due to the tension and compression steel cross-sectional area greatly increased, so the bearing capacity of the positive section and the cross-sectional stiffness are greatly improved.

3. Bonded steel reinforcement method; Bonded steel reinforcement is to use high-performance epoxy adhesive to bond the steel plate to the surface of the concrete component, so that the steel plate and the concrete form a unified whole, and use the good tensile strength of the steel plate to enhance the bearing capacity and stiffness of the component. The method has a small amount of wet operation such as fast construction, no wet operation on site or only a small amount of wet operation such as plastering, which has little impact on production and life, and has no significant impact on the appearance of the original structure and the original clearance after reinforcement, but the reinforcement effect depends to a large extent on the gluing process and operation level. It is suitable for the reinforcement of bending or tension members that are subjected to static action and are in a normal humidity environment.

Guangdong Selik, Selik has done the reinforcement and renovation of the villa for me before, and I am very satisfied.

Professional reinforcement companies need to have certain qualifications, and the Hummer reinforcement materials used also need to be implemented in accordance with the design standards. Special professional engineering refers to other projects that are not included in various professional projects, such as building deviation correction and translation, structural reinforcement, lifting and hoisting of special equipment, special lightning protection technology, etc. The qualifications of special professional engineering contracting enterprises are not divided into grades.

7 criteria for structural reinforcement qualification:

1.The enterprise manager has more than 10 years of experience in engineering management or has a senior professional title.

2.The technical person in charge of the enterprise has more than 10 years of technical management experience in civil engineering (structural engineering) and has the corresponding professional senior title; He has been responsible for more than two building structure reinforcement projects, and the contract amount of each single project is not less than 300,000 yuan.

3.The company has no less than 10 engineering and economic management personnel, including no less than 4 technical personnel with intermediate titles in civil engineering, structural engineering, building structure, engineering surveying, geotechnical engineering, traffic engineering and other related majors, including no less than 2 senior titles.

4.The company has 1 registered structural engineer.

5.The enterprise has no less than 1 first-class registered constructor.

6.The registered capital of the enterprise is more than 1 million yuan, and the net assets of the enterprise are more than 1.2 million yuan.

7.The company has corresponding special technology, equipment and testing tools, and has electric hammer, electric welding machine, steel bar position detector, tensile gauge, hydraulic tong and other machinery and equipment.

Design and construction of industrial and civil building structure testing, identification and reinforcement and layer renovation engineering. The breakdown is as follows:

1) Construction of foundation anchor static pile.

2) Reinforced concrete cutting and demolition.

3) Carbon fiber reinforcement, bonded steel and steel clad steel reinforcement.

4) Increase the cross-sectional area for reinforcement.

5) Replacement concrete method.

6) Prestressed reinforcement method.

7) Planting steel bars, chemical anchors.

8) Building correction and translation.

Reinforcement features: 1. The general process is to first carry out structural appraisal, and then carry out reinforcement design and construction according to the appraisal report.

2. The reinforcement should minimize the disturbance and damage to the original structure, such as giving priority to pasting carbon fiber and sticking steel reinforcement.

3. Before reinforcement, the owner needs to provide the original building, structural drawings and geological data of the house; Depending on the specific situation of the project, the relevant housing inspection and appraisal report shall be provided. The more information, the better.

4. Advanced and reliable technology should be selected as much as possible for reinforcement, and then economic and reasonable factors should be considered.

5. Before the construction of the reinforcement project, it is generally necessary to unload the original structure to minimize the impact of secondary stress.

The plant is also divided into a variety of different structures, steel structure workshops, ordinary structure workshops, etc., so there should be many ways to reinforce the plant, and the reinforcement technology is also different in specific circumstances, professional problems, or find the relevant reinforcement company to consult, ask them to identify and survey on the spot, love the prison The following are some references for the reinforcement and transformation of the plant:

1. Definition of plant reinforcement and transformation.

Plant reinforcement and renovation refers to the structural reinforcement and transformation of plant buildings to improve the bearing capacity and safety to meet the production needs and safety of the plant. Compared with the new construction, the reinforcement and transformation of the plant not only saves the project cost, the construction period is short, the investment speed is fast, and it is safe, reliable and convenient.

Second, the general situation of plant reinforcement and transformation.

At present, the plant is usually reinforced and renovated in the following situations:

1. The idle old plant is put into use again, and the old plant is reinforced, renovated and reused, which is the current commercial mode of more old factories. Generally, the overall safety appraisal of the plant is carried out first, and then the overall structure of the plant is transformed and strengthened to meet the needs of the use of the old and the new.

2. Under the influence of factors such as abnormal use, overload or poor use environment, low construction standards, and aging of the plant, the bearing capacity and safety reliability of the plant structure system are reduced, which seriously affects the safe use of the plant.

3. With the advancement of industrialization, factories usually use new machinery and equipment, improve the automation of production lines and replace new equipment when expanding production scale. With a large number of additional equipment, the bearing capacity of the plant cannot meet the equipment placement requirements required for expanding production, so it is necessary to reinforce the plant and carry out load-bearing reinforcement treatment for the regional components that do not meet the bearing capacity.

Third, the basic process of plant reinforcement and transformation.

On-site investigation of the plant - collection of original design and construction data of the plant (or housing safety appraisal) - preparation of preliminary plant reinforcement and renovation plan and budget** - deepening of the design and cost of the scheme - business negotiation and signing of the contract - plant reinforcement and renovation construction - completion acceptance and put into use.

Fourth, the plant reinforcement and transformation refer to the norms and standards.

Industrial Plant Reliability Appraisal Standard GBJ144-90

Code for Design of Reinforcement of Concrete Structures GB50367-2006

Technical specification for seismic reinforcement of buildings JG116-98

Technical Code for Reinforcement of Existing Building Foundations JGJ123-2000

Technical Code for Steel Structure Reinforcement CECS77:96

Technical specification for reinforced concrete structures with carbon fiber sheets CECS146:2003

Fifth, the main construction technology of plant reinforcement and transformation.

Plant foundation reinforcement: increase the cross-section method; increase the burial depth method; change the base type method; pressure grouting method; static pile method; root stump method;

Plant column reinforcement: increase the cross-section method; Outsourcing steel method; Paste carbon fiber cloth method;

Plant beam reinforcement: increase the cross-section method; Bonding method; Paste carbon fiber cloth method;

Plant floor reinforcement: steel bonding method; Paste carbon fiber cloth method; the addition of laminated panels; The steel beam method was added.

Plant wall reinforcement: hanging net method; the addition of the buttress method; increase shear wall method; Add the ring beam method.

1. Carbon fiber reinforcement.

2. Bonded steel reinforcement.

3. Matching technology: Crack repair technology and planting glue technology of Hummer HM-120ML crack repair adhesive.