2, the next concrete pouring, this part of the steel plate casting together, to prevent external pressure water infiltration. Cold-rolled steel plate is generally used as the base material of steel plate water stop, because the thickness of cold plate can be uniform, and the thickness of hot plate is generally uneven, generally 2 mm or 3 mm, and the length is generally processed into 3 m or 6 m long, generally 3 m, which is convenient for transportation. Water-stop steel plates have higher requirements for welded joints,
Welded joint of water stop steel plate
No leakage can occur, which will affect the waterproof performance.
Key points of construction
1, try to ensure that the water stop steel plate is on the center line of the wall;
2. The welding between the two steel plates should be fully welded on both sides, and the steel plate lap should be not less than 20mm；;
3, wall corner processing, first of all, the whole piece of steel plate bending; Second, T-welding; 3.7 welding.
4. The support welding of water-stop steel plate can be welded on the main reinforcement with small steel bars;
5. When the water-stop steel plate passes through the column stirrup, the stirrup can be disconnected, made into an open hoop, and welded on the steel plate.
6. The "opening" of the water stop steel plate faces the water surface.