Carbon fiber reinforced materials: CFRP, carbon fiber adhesiive. I carbon fiber cloth: ultimate strength standard value of not less than 3400Mpa, elongation of not less than 1.7% square meters, 150-300g/m2 unidirectional carbon fiber fabric.
Project overview
The safety and reinforcement project of school buildings in primary and middle schools. Is located in the North District of Fangshan District, the total construction area of 11271.05 square meters. The teaching building of 6431.09 square meters, six storey frame shear wall structure, the height of 3.60M; the experiment building of 4840.16 square meters, six storey frame shear wall structure, the height is 3.90m.
The main reinforcement method of this project
(1) wall strengthening: remove the original window and the back wall, and make a new shear wall.
(2) stair strengthening: the ladder board adopts the method of sticking carbon fiber cloth, and the beam is strengthened by the method of reinforcing the section with the planting reinforcement.
(3) frame column strengthening: the column is strengthened by the method of increasing the cross section of C30 concrete with the planting reinforcement.
(4) girder strengthening: epoxy bonded steel plate reinforcement.
Reinforcement material
Carbon fiber reinforced materials: CFRP, carbon fiber adhesiive. I carbon fiber cloth: ultimate strength standard value of not less than 3400Mpa, elongation of not less than 1.7% square meters, 150-300g/m2 unidirectional carbon fiber fabric.
Reinforced steel plate, Q345 steel, fy=310N/mm2, welding rod E43, used for welding steel plate and steel bar
Steel bar: the material is Q235B
Use a grade rebar adhesive for rebar planting
Reinforcement of cast-in-place reinforced concrete with C30 fine stone concrete
Main reinforcement content and construction scope
1.Academic Building
At the bottom of the slab, the carbon fiber cloth is pasted, the width is 150mm, the distance is 100mm, and the single layer is arranged in two directions.
The joint beam of the outer wall hole is reinforced with steel.
2.Laboratory Building
At the bottom of the slab, the carbon fiber cloth is pasted, and the width is 150mm. Distance 100mm, single layer layout.
The bottom four layer /CA-CB, C1 axis CC-CD axis at the windows and walls after the demolition, change to 200mm thick concrete wall.
The joint beam of the outer wall hole is reinforced with steel.
Frame column enlargement section: first layer CA/C2 axis, CD/C1/C2 axis, outdoor Z2
Frame column pasting carbon fiber cloth: first layer CB/C2, C3, C4, C5 axis, CA/C3 axis, CC/C4, C5 axis; outdoor Z3.
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HM-20 est un tissu de fibre de carbone unidirectionnelle. Lorsque mis en place par superposition d’épaisseurs du tissu sur la résine d’imprégnation époxyde HM-180C3P, il forme un système de renforcement composite.
Adhésif de renforcement structurel époxy modifié à deux composants pour la plaque d'acier collée au béton
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