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How to arrange anchor bolts for steel plate jacketing
Bonded steel plate reinforcement is to use high-performance epoxy structral bonding adhesives to bond steel plate to the surface of concrete components, so that steel plate and concrete form a unified whole, using the good tensile strength of steel plate to enhance the bearing capacity and stiffness of components.
2020-01-11 10:16
FRP strengthening concrete slab
Furthermore, FRP fabric is pasted at the bottom of the floor with a certain spacing, so that some floors are covered by FRP, while others are not.
2020-01-11 10:18
Strengthening of columns using FRP composite
The bond surface between FRP composite and concrete structure is a weak link in reinforcement. Orthogonal test can be used to determine several characteristic values of bond surface with high durability.
2020-01-11 10:26
Carbon fiber fabric strengthening pull-out test
Normal carbon fiber fabric pull-out test tensile strength > 2.5 MPa, greater than this data is recognized as the carbon fiber fabric test qualified!
2020-01-11 10:28
How to pull out the planting rebar
Planting rebar technology is an important branch of Post-Anchorage technology. By drilling, gluing epoxy anchoring adhesive and planting reinforcement on the original concrete structure, the new members are joined together with the original concrete base material.
2020-01-11 10:31
CFRP confined reinforced concrete columns
Carbon fiber reinforced polymer (CFRP) fabric has been widely used in the field of structural reinforcement because of its excellent physical and mechanical properties, good adhesion, and easy cutting.
2020-01-11 10:34
Failure mode of RC columns strengthened with FRP
Wrapping carbon fiber reinforced polymer(FRP) fabric can improve the shear capacity of concrete columns, change their failure modes and improve their ductility.
2020-01-11 10:36
Analysis of cracks in beams strengthened with carbon fiber
The crack width and the crack spacing of the beams strengthened with carbon fiber fabric are significantly reduced compared with those of the unreinforced beams.
2020-01-11 10:52
Thickness of fire retardant coating after FRP strengthening
In order to improve the fire resistance of concrete beams and slabs strengthened with carbon fiber fabric, a thick coated fire retardant coating is selected as the protective layer.
2020-01-11 11:02
Can anchorage devices affect CFRP reinforcement?
The shear capacity of reinforced concrete T-beam strengthened with CFRP sheet can be significantly improved by anchorage device, and the shear effect (relative control beam) of the strengthened beam can be increased from 21.16% of U-shaped stirrups to 92.55%.
2020-01-11 11:05
The bearing capacity of beam is insufficient, how to reinforce
What are the commonly used structural reinforcement methods when the beam bearing capacity is insufficient? bonded carbon fiber fabric, bonded steel plate, enlarged section.
2020-01-11 11:07
Strengthening methods for reinforced concrete(RC) colum
There are many reinforcement methods of reinforced concrete column, such as enlarging section method, enclosing steel reinforcement method, prestressed strut reinforcement method, displacement method, carbon fiber reinforcement method, etc.
2020-01-11 11:08
Reinforcement and inspection of cast-in-place concrete slab
In residential building project, before the construction of cushion layer and surface layer, cracks less than 0.3 mm were found in cast-in-situ concrete slab, and leakage was found after water injection. After core drilling, it was found that the cracks were caused by concrete strength and slab thickness not meeting the design requirements.
2020-01-11 11:11
Application of CFRP in strengthening RC Beams
The flexural and shear bearing capacity of concrete beams strengthened with CFRP is significantly improved. CFRP can effectively inhibit the development of cracks, and make the width and spacing of cracks smaller.
2020-01-11 11:13
Comparison between AFRP reinforcement and other reinforcement
AFRP composites have a series of advantages, such as light weight, high strength, high modulus, good corrosion resistance, non-conductivity, good impact resistance and so on. Therefore, it has a very wide range of applications in bridge, tunnel, subway, harbor and industrial and civil construction projects, especially in the field of concrete structure reinforcement and repair.
2020-01-11 11:16
The advantages of carbon fiber strip reinforcement
Carbon fiber composite strengthening methods include carbon fiber fabric strengthening and carbon fiber strip strengthening, and carbon fiber strip reinfrocement has many advantages over carbon fiber fabric reinforcement.
2020-01-11 11:20
Whether FRP composite system can reinforce steel structure
FRP composite material have high strength and specific stiffness, to achieve the same reinforcement effec. The size of the composite material is obviously less than the size of the steel plate, after reinforcement, it does not increase the weight of the original structure and the size of the original component.
2020-01-11 11:22
High temperature welding on post installed anchoring
The anchoring adhesive is less than 80 C, and the high temperature produced in the welding is extremely unfavorable to the rebar adhesive, which usually directly affects the performance of the rebar adhesive and affects the anchorage and strengthening effect of the reinforcement.
2020-01-11 11:24
Strengthening of cap and beam of bridge pier and abutment
Strengthening of cap and beam of bridge pier and abutment
2020-01-11 11:26