Connection joint of prefabricated floor slab and beam

[0018] Example: such as Figure 1-Figure 5 As shown, a prefabricated floor and beam connection node includes the first floor 1, the second floor 2, the beam 3, the reserved bolt holes 4, the high-strength bolts 5, the cast-in-place concrete 6, and the water expansive agent 7. The first floor extension rib 1-1 is prefabricated on one side of the first floor slab 1, and the first floor extension rib 1-2 is reserved at the lower part of the same side, and the first floor extension rib has reserved bolt holes 4 inside. ; The second floor 2 side outward prefabricated second floor extension rib 2-1, the lower part of the same side reserved second floor extension rib 2-2, the second floor extension rib 2-1 inside Reserve bolt holes 4; the upper part of the beam 3 is prefabricated outwardly extending rectangular ribs 3-1, internal reserved steel channels 3-2, and built-in steel reinforcement sleeves 3 are prefabricated inside the internal reserved steel channels 3-2 -3; The first floor extension rib 1-1 and the second floor extension rib 2-1 are overlapped on the upper part of the extension rectangular rib 3-1, and the floor and the beam 3 are connected as a whole through the high-strength bolt 5; The first floor slab extension bar 1-2 and the second floor slab extension bar 2-2 are connected through the built-in reserved steel channel 3-2, and are connected by the built-in steel sleeve 3-3. After the connection is completed, the built-in steel channel 3- 2 Fill the cast-in-place concrete 6 to connect the first floor 1, the second floor 2 and the beam 3 into a whole; after the connection of the floor slab is completed, the first floor slab extension rib 1-1 is connected with the second floor slab extension rib 2-1 Add water swelling agent 7 everywhere to play a good waterproof effect.

[0019] The first floor extension rib 1-1 and the first floor extension rib 1-2 on the first floor 1 and the second floor extension rib 2-1 and the second floor extension rib 2-1 on the second floor 2 The positions of 2-2 correspond; the reserved bolt holes 4 on the first floor 1 and the second floor 2 correspond to the positions of the reserved bolt holes 4 of the extending rectangular rib 3-3.

[0020] The first floor slab extension rib 1-2 and the second floor slab extension rib 2-2 correspond to the positions of the built-in reserved steel channel 3-2. The two ends of the built-in steel reinforcement sleeve 3-3 are respectively connected with the first external reinforcement 1-2 and the second floor extension reinforcement 2-2 through threads. The size of the built-in steel reinforcement sleeve 3-3 is the same as that of the first external reinforcement 1 -2 has the same size as the second floor extension rib 2-2, which can connect the steel bars.