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Structural strengthening methods for concrete structures
According to the actual situation, the structural reinforcement method of enlarging section, replacing concrete, external stick steel plate, sticking steel jacketing plate and sticking fiber reinfroced polymer(FRP) composite can be selected.
2020-01-08 09:35
Bonding steel plate or carbon fiber fabric for strengthening
In the structure strengthening, pasting carbon fiber fabric(CFRP) and paste steel plate in the concrete structure is two frequently-used method.
2020-01-08 09:38
New structural strengthening method of Civil Engineer
According to the different additive properties. The addition of the structural strengthening includes three aspects: bearing capacity (strength) reinforcement, service function (rigidity) reinforcement and durability reinforcement.
2020-01-08 09:40
The procedures for strengthening existing structures
The procedures for strengthening and retrofitting existing structures：reliability identification of existing buildings -- the selection of strengthening and retrofitting schemes - strengthening and retrofitting design -- construction organization of reinforcement engineering -- construction -- inspection and acceptance of finished projects.
2020-01-08 09:45
Comparison of Two Retrofitting Methods for RC Beams
At present, there are many commonly used reinforcement methods for reinforced concrete structures. Here are two commonly used reinforcement methods for reinforced concrete beams: adhesive bonded steel plate method and externally bonded carbon fiber reinforced polymer method.
2020-01-08 09:47
Direct reinforcement method of concrete structure
CFRP strengthening method; Bonding steel plate reinforcement method; Enlarging the cross section method; Anchorage method; Displacement concrete method; Winding reinforcement method
2020-01-08 09:48
Beam bridge superstructure strengthening
There are several kinds of reinforcement and reconstruction techniques for the upper structure of girder Bridges: the expansion and increase of the original structural member section to improve the strength and stiffness of the original structure;To replace the structure of the original resistance with the new structure;The force system of the original structure is changed to reduce the force of the original structure.The prestressing force is applied to the original structure to improve the force performan
2020-01-08 09:49
Rehabilitation of RC beam-column joints using carbon fiber
Carbon fiber reinforced polymer(CFRP) retrofitting frame beam；Floor opening-carbon fiber reinforced polymer(CFRP) retrofitting；Slab crack-carbon fiber reinforced polymer(CFRP) retrofitting；Brick and wall-carbon fiber reinforced polymer(CFRP) retrofitting
2020-01-08 09:51
The difference between FRP strengthening and bonded steel plate
According to the design of equal strength, the glue dosage of the two schemes is equivalent. The FRP strengthening are much cheaper than the sticky steel plate. The cost of the two schemes is flat when short carbon fiber fabric are taken.
2020-01-08 09:52
What is retrofitting? why need retrofitting?
Retrofitting, refers to inadequate reliability or owner for higher reliability of the bearing structure, component part and its related to enhance, local replacement or adjustment measures such as its internal force, to make it with the current design specification and the owner required safety, durability and applicability.
2020-01-08 09:54
Advantages and disadvantages of steel plate strengthening
the construction of steel plate strengthened is economical and reasonable. Because of the rapid construction, the construction time is avoided or reduced, and the reinforcement material is saved. Compared with other reinforcement methods, the cost of reinforcement of beam and stick steel is greatly saved
2020-01-08 09:55
Solution of poor bond strength between steel plate and concrete
The gap between steel plate and concrete is not uniform, and the injection speed is too fast，so poor bond strength between steel plate and concrete
2020-01-08 09:57
Structural Strengthening Material Selection Guide
Structural Strengthening material selection: Reinforcing materials should be selected as lightweight and high-strength materials with good working properties.
2020-01-08 09:59
The methods for strengthening bridge superstructure
In general, there are several ways in the superstructure strengthening of bridge 1. CFRP reinforcement method 2. Bonded steel plate (tendons) reinforcement method 3. Prestressing FRP reinforcement method 4. Enlarging member section and reinforcing reinforcement method 5. Reinforcement method of rebars planting
2020-01-08 10:00
Applicability of different retrofitting methods
What are the main methods of structural strengthening? What is the difference between the applicability of structural strengthening methods?
2020-01-08 10:03
Which method is suitable for the column seismic reinforcement?
There are many kinds of seismic strengthening methods for columns. CFRP sheet is one of the most recent reinforcement data in recent years. It is very effective for reinforced concrete under bending, axial compression, large eccentric compression and tensile member reinforcement.
2020-01-08 10:04
Key points for old building retrofitting
In the modern society, because of the economic and political development, many existing buildings can not meet the needs of the present stage. It is necessary to reinforce the old buildings.
2020-01-08 10:11
The necessity of bridge strengthening
Why should the bridge be strengthened?The retrofitting and reinforcement of the bridge can not only improve the capacity and service level of highway bridges, but also eliminate the hidden dangers of traffic safety to a certain extent.
2020-01-08 10:14
The structural strengthening materials for beam
Which structural strengthening materials can effectively reinforce various damage of structural beams?Carbon fiber reinforced polymer(CFRP) wrap,Epoxy bonded steel plate, Anchoring adhesive, Steel jacketing adhesive
2020-01-08 10:16
Bond steel plate reinforcement to repair cracks
The girders have cracks due to occasional factors, and their usability is not affected. But the safety level is low, the use of bonded steel plate reinforcement has fewer advantages, such as less engineering volume and relatively low cost.
2020-01-08 10:18