Pre-fabricated beams that are transported to the construction site and installed in fixed positions according to the design specifications are known as precast beams.

The distinction between cast-in-place beams and precast beams is as follows:

Check if there is a gap on the side and if steel molds were used during the construction and manufacturing process.

2. Cast-in-place beams involve securing well-fitted molds and pouring concrete using a concrete pump truck; precast beams are manufactured by the factory, transported to the site, and then lifted into place using a bridge crane or a crane. The bottom section of cast-in-place beams typically has a curved, arched shape.

The precast beam is in a straight line at the bottom.

3. The primary distinction between cast-in-place beams and precast beams is that cast-in-place beams are poured at the designated design location as specified in the construction drawings, while precast beams are manufactured off-site and then transported to the designated design location.

Pour and install again at nearby or distant sites.

4. The advantages and disadvantages are as follows: The connection between cast-in-place beams and structural components is relatively reliable and the overall performance of the structure is good. However, due to limitations in external and internal processes, construction and delivery cannot be done at any time.

The connection and overall stability of prefabricated beams and structural components are relatively poor, but since they can be pre-manufactured to meet installation requirements at any time, it does not affect the progress of the process.