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Structural strengthening by adhesively bonded steel plate
Beam, column, slab, wall strengthening by adhesively bonded steel plate, steel plate and concrete form a unified whole, enhance the bearing capacity and stiffness of components.
2020-01-11 13:15
Comparative of applicability of bonding CFRP and steel plate
Bonded CFRP and steel bonded reinforcement are bonded to the structure surface by resin cementing material, and form a whole force system with the structure to enhance the flexural or shear ability of the reinforced structure
2020-01-11 13:21
Reinforcement steel bar pull-out test
The tensile test of steel bar is the field test of the anchoring force. After 48-72 hours of rebar planting, the tension meter (Jack) can be used to carry out the drawing test of the reinforced bar.
2020-01-11 13:23
Precautions for the repair of concrete cracks
Before cracks are repaired, we need to measure the cracks first and choose the appropriate method according to the width of the cracks. When the crack width is less than 0.2mm, the crack repair glue is closed. When the crack width is in the 0.2mm~1.5mm, the crack injection adhesive should be injected into the fracture cavity with a certain pressure to strengthen and close the fracture cavity.
2020-01-13 05:37
Methods for insufficient load-bearing capacity of machine room
For buildings used for machine rooms or record room, there are special requirements for floor loadings, such as higher load design values than ordinary office buildings. Therefore, it is necessary for the ordinary housing to be transformed into a computer room or record room to use or extend the original machine room.
2020-01-13 05:39
How to test the construction quality of steel plate bonded
The method of steel encased steel reinforcement is necessary for strengthening the concrete beam and column structure that needs to increase the bearing capacity and seismic capacity of the section greatly.
2020-01-13 05:43Reinforcement & retrofit of reinforced concrete components
Reinforced concrete members will exhibit certain deformation or damage after exceeding a certain number of years. Some buildings or structures are used beyond their own limit of use; some are due to poor quality of construction; in this situation, it is often difficult to demolish and rebuild due to the reasons for the quality or service life. To continue to use it, the construction needs to be reinforced, reinforced, reformed and repaired.
2020-01-13 05:49
Seismic retrofit methods of reinforced concrete structures
Seismic retrofit methods improve the strength of structure and component; improve the stability of structure and component; improve the stiffness of structure and component; improve the durability of structure and component.
2020-01-13 05:51
Reinforcement of cracks in reinforced concrete(RC) beams
Reinforcement of cracks in reinforced concrete(RC) beams: Surrounding concrete; Steel plate bonding strengthening; CFRP strengthening; Grouting.
2020-01-13 05:52Reinforcement technology for quality defects of RC column
In addition to the reasons for the poor column quality caused by the above mentioned construction, in practical engineering, the loading capacity of reinforced concrete columns is often insufficient because of poor design and disaster (earthquake, fire, flood), or the increase of the load to the column due to the change of the structure's function. When these conditions occur, strengthening reinforced concrete columns is need .
2020-01-13 05:57
Strengthening of wood structure by FRP composite
There are also some problems in the modern wood structure, such as carrying capacity. Therefore, the fiber reinfroced polymer(FRP) material reinforcement method is put forward.
2020-01-13 06:00
Structural strengthening or insufficient strength of concrete
The lack of concrete strength caused by improper construction and use will reduce the bearing capacity and stiffness of the structure, increase the deflection and deformation, and reduce the crack resistance, seepage resistance and durability of the structure, which will affect the use of the structure.
2020-01-13 06:02
Mechanical analysis on CFRP sheets strengthening
Carbon fiber reinfroced polymer(CFRP) sheet can improve the shear capacity of concrete beams, the mechanism of which is similar to the stirrup, and it can also improve the deformation properties of the components and enhance the deformation capacity of the components.
2020-01-13 06:03
FRP to repair concrete structure in civil engineering
Application of carbon fiber reinforced polymer(FRP) fabric to repair and reinforce concrete structure in civil engineering.
2020-01-13 06:08Measures for quality problem of CFRP strengthening
When the bonding quality is not required, the carbon fiber fabric should be cut off along the edge of the empty drum. The size of 100mm is extended to the outer edge of the same carbon fiber material, and the same binder is used in the original.
2020-01-13 06:09
18 methods for seismic strengthening
When the aseismic bearing capacity of the building fails to meet the requirements, the following reinforcement and transformation methods can be chosen
2020-01-13 06:11
Seismic reinforcement of concrete structures
If the bearing capacity of the building structure can meet the requirements, it is preferable to adopt the method of changing the structural system instead of reinforcing its components. When reinforced concrete structural members are required strengthening, the reinforcement method adopted in the design shall comply with the following table rules.
2020-01-13 06:13
Bonded steel plate reinforcement method
In construction, the steel plate will be attached to the outer edge of the stressed part of the reinforced structure with structural steel plate bonding adhesvie, in order to give full play to the strength and effect of the steel plate, and to close the cracks in the pasted parts at the same time, to restrain the deformation of the concrete, and thus effectively improve the crack resistance and stiffness of the reinforced component.
2020-01-13 06:14
Cracks in reinforced concrete(RC) structural members
Structural cracks not only represent the structural stress, but also affect the durability of structures. The bigger the crack width is, the easier the steel will corrode, which means that the bond between the steel bar and the concrete has been completely destroyed and the service life has come to an end.
2020-01-13 06:16
Reinforcement method of masonry structure
The practical masonry structure reinforcement can be divided into two types: direct reinforcement and indirect reinforcement. According to the actual conditions and the requirements of application, the suitable method can be selected.
2020-01-13 06:18