Advantages of Bridge T-beam formwork - hollow slab beam formwork

Advantages of box girder formwork:

1. Moderate surface gloss.

2. Easy assembly and simple disassembly.

3. Box girder steel formwork is widely used in road and bridge engineering.

Box girders are divided into cast-in-place and precast box girders. The steel formwork for box girders consists of two parts: an inner formwork and an outer formwork. The outer formwork is composed of side formwork on both sides and is a single unit. The inner formwork is assembled from small modular components. After assembly, it is hoisted into the reinforcing cage. After pouring, the bolts are removed, and each small unit is pulled out individually. Disassembly is done piecemeal, while assembly is done as a whole and hoisted. The span of the bridge is typically 20 meters, 25 meters, 30 meters, 35 meters, or 40 meters. Since the steel formwork for box girders has a high turnover rate, it must be robust and durable during production to prevent problems such as grout leakage, weld cracking, and formwork bulging due to repeated use.

The material of the box girder steel formwork is Q235 stainless steel. Commonly used thicknesses are 12 mm, 15 mm, and 18 mm. Of course, other special thicknesses are also available. Therefore, the specific thickness to choose depends on the actual needs of the bridge project.