1, pier (abutment) has been completed;

2. The fabrication of simply supported beam has been completed.

Second, implementation

1, placing temporary supports on piers (platforms) (sandbox method is often used);

2. Hoist the simply supported beam and put the simply supported beam on the temporary support;

3. Hoist the simply supported beams of adjacent spans and place them on temporary supports;

4, above the pier, at the intersection of two simply supported beams, connect steel bars, erect formwork, pour wet joints, maintain health, and apply prestress;

5, after the completion of health, demolition, placement of permanent bearings, temporary bearings, can be completed.

6. Dismantle temporary supports and beams