Technology of bridge strengthening and retrofitting

Bridge strengthening is generally to restore or improve the bearing capacity of existing bridges by improving the strength of the components and improving the structural performance, so as to prolong the service life of the bridge and adapt to the requirements of modern transportation.

2018-04-16 16:16:01

External steel plate systems for reinforced concrete column beam

By the method of sticking steel plate for reinforced concrete columns: improving the compressive strength of concrete, and solving the bending moment and insufficient shearing resistance of columns.

2018-04-13 17:28:07

Seismic strengthening of RC structures with FRP materials

Carbon fiber reinforced materials: CFRP, carbon fiber adhesiive. I carbon fiber cloth: ultimate strength standard value of not less than 3400Mpa, elongation of not less than 1.7% square meters, 150-300g/m2 ​unidirectional carbon fiber fabric.

2018-03-29 14:35:39

Advantages of FRP composite bridges

FRP composite has the advantages of light weight, high strength and strong corrosion resistance, making it a substitute for steel and prestressed tendons in concrete bridges.With the decrease of the cost of the fiber composite industry, the scale of its application in bridge structural engineering will continue to expand.

2018-03-14 14:31:54

FRP composite strengthening system in bridge engineering

The bridge structure in the tension side with the reinforcement method of epoxy resin bonded CFRP materials, has simple construction, low cost of strengthening (instead of steel reinforcement can save money 25 %), does not reduce the clearance under the bridge reinforcement materials

2018-03-14 14:08:38

Reinforcement method of brick concrete structure

Brick and concrete structure need structural reinforcement due to improper design or improper construction, inconsistent quality of materials, alteration of housing function, disaster and poor durability.

2018-03-13 17:02:32

Reinforcement of frame columns by planting rebar

According to the field test, 13 frame column deflection, which has 10 column bar deviation is greater than or equal to 30mm. For a steel bar with a bias greater than 30mm, we will planting rebars with HM-500 injectable anchoring adhesive.

2018-03-08 15:32:34

Planting steel rebars project

Planting steel rebars to ensure the reliable bonding of steel bar, beam, wall, column and slab concrete, so as to reduce the damage to the original structure.

2018-03-06 15:00:51

New beams and columns---Rebar planting project

Before and after the construction of rebars, it is necessary to ensure that there is no water flowing into the surface of the components within the scope of construction, so as to keep the dry environment of the planting bar.

2018-03-06 14:36:28

Replacement of support of Sutong Bridge

Sutong Bridge is located in the eastern part of Jiangsu, connecting Nantong and Changshou City, Suzhou. The total length of the project is 32.4 kilometers, which is composed of three parts: shore connection project, cross bridge project and south shore connection project. Among them, the wiring length of about 15.1 km, the south line of about 9.2 km, about 8.2 km long span bridge.

2018-02-09 19:06:26

Bond steel plate reinforcement,apartment project

the advantages of construction "durable, quick construction, flexible and simple lightweight steel plate bonded reinforcement, in order to satisfy the requirements for both the duration and quality, considering the construction convenience and feasibility, the scheme of strengthening technology of steel material properties and process and the construction environment and quality control are described in detail and deepening.

2018-02-08 15:26:09

Column, beam and slab retrofitting with steel rebar, CFRP, steel

The original structure column, beam and slab are reinforced for the use requirements. It is necessary to use anchoring adhesive to implant steel bars, planting steel bar anchor into the original structure concrete,The original structure concrete is cut by opening and cutting. Reinforcement of steel plate and CFRP on the original structure beam and roof because of the change of structural load.

2018-02-08 14:21:53

Reinforcement of steel bar in industrial plant

The project was originally industrial area, a total of 8 buildings, retrofitting into the Universiade Cultural Park in 2011, due to the use of the function has changed, according to the current design code, part of the bearing capacity and seismic measures do not meet the requirements, therefore should be reinforced.

2018-02-08 13:53:25

Retrofitting of communication equipment room

The office building is transformed into a communication machine room. The load is obviously increased. Now we use carbon fiber to strengthen the beam and plate to improve the tensile strength, so as to achieve the load condition of the building's functional transformation.

2018-02-07 16:42:00

Aseismatic reinforcement of schools

The method of strengthening shotcrete is applied to the basement and the original structure wall. The floor slab of the original structure is glued with double-layer carbon fiber cloth, and the seam of the foor and slab needs to be seamed.

2018-02-07 16:42:18

Reinforced beams and columns with CFRP sheet

The six level of beam and column detection failed to meet the design standard. In order to restore some of the unqualified beams and columns to the original design strength, the company was commissioned by Party A to reinforce the construction technology of partially failed beams and columns with carbon fiber reinforced polymer(CFRP) sheet.

2018-02-06 13:41:00

Reinforcement Pu Wei highway bridge with carbon fiber fabric

The main technology is to use epoxy mortar to repair the exposed reinforcement and concrete defects in the beam body. The advanced carbon fiber reinforcement technology is applied to reinforce the above highway bridges so as to improve the bearing capacity and durability of the bridge structure.

2018-02-05 14:57:15

Carbon fiber reinforcement in hydrogen pipeline

Reinforcement technology of carbon fiber composite strengthening material(CFRP) is used to reinforce and retrofit the pipeline to improve the safety factor of hydrogen pipeline.

2018-02-05 14:00:01

Dalian Zhuanghe power plant retrofitting

Strengthening Zhuanghe power plant, Dalian, Guodian,use more reinforcement technology:carbon fiber reinforced polymer(CFRP) fabric, chemical reinforcement, and increased cross section

2018-02-02 12:18:13

Reinforcement of the house of the Hai Lan

The original structure can not meet the needs of the present stage, so it needs to change the use function of the building. In the case of ensuring the safety of the building, it is decided to dismantle a part of the load-bearing wall so that the building can be connected through space to form a whole. Based on the above reasons, the original building structure should be strengthened.

2018-01-30 19:39:20