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Bridge Maintenance-Sharing of Carbon Fiber Reinforcement and Reinforcement Construction Technology
2020-01-15 05:31Therefore, it is suggested that the whole calculation design should be done for the reinforced and reconstructed buildings.
2020-01-15 05:53CFRP Strengthening Systems are composed of carbon fiber fabric that are wrapped around a structure and coated with adhesive. Once dry, the systems strengthen concrete, masonry,and wood structures and can be up to 9 times stronger than steel, yet thinner and flexible.
2020-01-15 05:55In the design of CFRP reinforcement scheme for Wharf theme structure, the adaptability of seawater environment should be taken into account. At the same time, the durability of coatings, resins, repairing glues, primers, reinforcement materials and interface agents used in the reinforcement process should be considered.
2020-01-15 06:04The renovation project of kindergarten teaching building, with three-storey brick-concrete structure, has a building area of about 2800 m2. Because the original design was designed according to the old code, it is now checked in accordance with the current code and strengthened to those places that do not meet the current code. After strengthening, it is still used as a kindergarten teaching building, and the use function has not changed.
2020-01-15 06:57Carbon fiber reinforced polymer (CFRP) provides an economical and effective solution for strengthening flexural and shear concrete beams. This technology is suitable for reinforcing concrete, steel, wood and plywood beams.
2020-01-15 07:19The successful implementation of this reinforcement scheme provides engineering examples and strong evidence for the application of CFRP reinforcement technology in shear-compression damage of reinforced concrete beams.
2020-01-15 07:42In view of the lack of prestressing steel wire in the prestressing hollow floor, several reinforcement schemes are analyzed and selected according to their characteristics. Decide to choose the sticky carbon fiber cloth method.
2020-01-15 08:44Because of the high strength and high elasticity of carbon fiber materials, the use of adhesives to paste them on the surface of the bridge, so that they can bear the load together with the bridge structure, can greatly improve the tensile, compressive and shear capacity of the bridge.
2020-01-15 08:52The project has been effectively controlled in all aspects of CFRP reinforcement to ensure the quality of reinforcement. After carbon fiber reinforcement, the design intention has been achieved through joint acceptance by all parties, and it has received unanimous praise from Party A and supervision.
2020-01-15 08:57It is an effective repairing method to reinforce steel pressure pipes by circular bonding of carbon fiber fabric. Especially for pipelines with defects, the circular stress of internal pressure pipes can be effectively reduced.
2020-01-15 09:29The diameter of steel bars in the floor of the main workshop does not meet the original design requirements. The necessary reinforcement measures should be taken for the inspected workshop. After the design, carbon fiber reinforcement is finally adopted.
2020-01-15 09:41Carbon fibers are bonded to the surface of components by matching bonding materials, so that the carbon fibers can bear tension, coordinate with the deformation of concrete and work together.
2020-01-15 09:46CFRP reinforced structural columns are encapsulated with CFRP impregnated adhesive to prevent the transverse failure of the structural columns, thus ensuring the safety of the columns.
2020-01-15 09:49The carbon fiber laminate with high strength or high modulus of elasticity is adhered to the surface of the concrete member of the bridge with specially configured carbon fiber glue to form a joint reinforcement method with the original member.
2020-01-15 09:52Using reinforcement method to strengthen and maintain the original bridge not only saves a lot of construction funds, but also solves the contradiction between the bearing capacity of the bridge and traffic demand in a short time. At present, the main methods used to reinforce bridges include enlarging section and reinforcing steel bar, bonding steel plate, external prestressing and carbon fiber sheet.
2020-01-15 09:58Right evaluation of the bond behavior between corroded reinforcement and concrete wrapped with CFRP is a chief problem to confirm the effect of CFRP confinement.
2020-01-15 10:08HM-120l crack injection adhesive for struatural crack repair
2020-01-15 10:16After the steel plate is bonded, a 25 mm thick epoxy mortar protective layer is applied on the surface of the beam. For the slab with a width of more than 0.2 mm and the crack-dense area, the cracks on the top of the slab are chiseled out in Fig. 2, showing C.
2020-01-15 10:25