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The use of externally bonded CFRP reinforcement method can significantly improve the seismic performance of columns, so that columns can have better inelastic deformation before the above failure occurs.
2020-01-13 07:18At present, there are many common reinforcement methods, such as enlarging section method, wrapping steel reinforcement method, sticking steel plate reinforcement method, carbon fiber retrofitting method and so on
2020-01-13 07:24The aseismic performance of the brick concrete structure is generally poor, its cross wall space is too large, it is not satisfied with the requirements of the standard, the bearing capacity is insufficient, the width of the house is not satisfied, the length of the window wall is not enough, and so on.
2020-01-13 07:26Frame structure is a common structural form of construction. With the increase of service life or the influence of external factors, the strength of the whole structure may be reduced, and it is urgently needed to be strengthened.
2020-01-13 07:33The strengthening of buildings structures can be seen from two levels: 1. maintenance reinforcement due to damaged. 2. strengthen the building to achieve a certain degree of anti destructive ability, such as seismic retrofitting.
2020-01-13 07:35Sticking steel plate reinforcement can seal the cracks and defects of the bonding parts, restrain the deformation of concrete, and effectively improve the stiffness and crack resistance of the strengthened components.
2020-01-13 07:40The prestressed CFRP plate reinforcement technology reduces the normal peel force between carbon fiber and concrete components, improves the bond stress distribution, and effectively inhibits bond failure.
2020-01-13 07:43Due to the increase of traffic flow and the increase of load, bridges are suffering from various diseases and need to be reinforced urgently.
2020-01-13 07:45The sticking steel plate technology is use a high-strength structural adhesive sticks on the steel plate, the steel plate and concrete firmly together, woke together. Restore and increase the structural bearing capacity as well as strength and stiffness.
2020-01-13 07:46The reinforcement of CFRP does not increase the weight and size of the original structure, and the most important thing is that the reinforcement of carbon fiber cloth does not need opening and welding. It will not cause damage to the steel structure and ensure the strength and integrity of the original structure.
2020-01-13 07:49In the transformation, the opening of the floor is normal. In the structure of the building, the floor can bear the vertical load on the upper part, and provide the lateral stiffness for the structure, coordinate the lateral deformation of the structure, and maintain the role of the whole work together.
2020-01-13 07:52There are many parameters that affect CFRP strengthening, which can be divided into two categories:reinforcement, the properties of CFRP composite system.
2020-01-13 07:55Reinforcement method of concrete column: Enlarging section method, steel jacketing method, pre-stress CFRP method, unloading external loading method and increasing support method.
2020-01-13 07:57Structural reinforcement refers to strengthening the original stressed structure, so as to meet the new requirements and safety, and save costs and reduce investment.
2020-01-13 08:41Post installed rebar reinforcement has been applied more and more widely in structural reinforcement projects. Although post installed rebar is simple and easy to operate, strict quality control is still needed.
2020-01-13 08:44Beam strengthening,Solve the problem: the flexure and tension of concrete beams caused by increasing load. According to the force, the bottom of the beam can be strengthened by sticking single layer or double layer with U type hoop.
2020-01-13 08:45The reason of void between steel plate and concrete ,Inappropriate grinding and cleaning of the surface of the steel plate,The surface of concrete is wet or the humidity in the air is high
2020-01-13 08:47Design flexibility: according to need, we can design the quantity and specification of planting bar according to the structural stress characteristics in any position of reinforced concrete.
2020-01-13 08:48What changes have taken place in the mechanical properties of the structure before and after the structure is reinforced or retrofitting?
2020-01-13 08:49The whole process can be divided into three stages: the stage of no cracking, the stage of crack and the stage of failure.
2020-01-13 08:52