Hold the intersection
When the intersection of the surrounding steel bars needs to be fastened, the intersection of the middle part can be fastened alternately, but the steel bars should not be displaced. For the steel mesh with two-way main reinforcement, ensure that all steel bar intersections have been fastened. When binding, pay attention to the eight-shaped wire buckle near the binding point to prevent the mesh from being skewed and deformed.
Ensure that the rebar position is accurate.
When the foundation slab adopts double-layer steel mesh, steel brace or concrete brace should be set below the upper steel mesh to ensure the accurate position of steel bars.
The steel dowel is firmly connected.
The stirrup of the steel dowel connecting the cast-in-place column with the foundation should be smaller than the stirrup of the column by one column rebar diameter for connection. Ensure the position of steel dowel is stable and avoid column axis deviation.
Pay attention to the hook direction.
The hook of steel bar should be upward to avoid inclination; But the hook on the upper layer of the double-layer steel mesh should face down.
Bending characteristics of independent column foundation
The bidirectional bending characteristics of independent column foundation require that the short-side reinforcement at the bottom be placed on the long-side reinforcement.
Protective reinforcement
Don't forget the protective layer of reinforcement, which must be thick enough to prevent the reinforcement from being exposed.