River grating is a type of deck slab whose construction is completed by erecting prefabricated members consisting of I-shaped steel, which function as main reinforcing bars, and galvanized bottom steel plates, which function as forms, and then applying concrete. River grating is very effective for overpasses and bridges that require rapid construction.
The main member is made of special I-shaped steel and corresponds to the main reinforcing bars of reinforced concrete deck slabs.
The distribution bar consists of a deformed bar.
The bottom plate is a galvanized steel plate of 1.0 to 1.6 mm in thickness and serves as a form during concrete application.
The haunch plate is a galvanized steel plate of 1.6 to 3.2 mm in thickness and it functions as the form of the haunch.
1. Insertion of joint bars
2. Erection by crane
3. Connection of joints
4. Installation of curb forms
5. Concrete casting